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  4. Professor Arutiun Ehiasarian

Professor Arutiun P Ehiasarian PhD, FInstP

Head of National HIPIMS Technology Centre


Summary

Professor Arutiun Ehiasarian is the Head of the National HIPIMS Technology Centre - UK and Director of the Joint SHU-Fraunhofer IST HIPIMS Research Centre opened in 2010. He has been part of the Nanotechnology Centre for PVD Research at Sheffield Hallam University since 1998. Arutiun is one of the pioneers of high power impulse magnetron sputtering (HIPIMS) technology. His research concentrates on the development of plasma PVD technologies to improve the performance of coatings used for wear, oxidation and corrosion protection in automotive, aerospace and orthopaedic industries, as well as through-silicon via metallisation for semiconductor wafer processing, thin film photovoltaics, cryogenic materials for space satellites and superconducting thin films for particle accelerator cavities.
Arutiun is the Chair of the International Conference on HIPIMS organised jointly by Sheffield Hallam University and Fraunhofer IST. He is also the Secretary of the British Vacuum Council.

About

Arutiun obtained his PhD in Plasma Science and Surface Engineering after undergraduate studies at the University of Sofia 'St Kliment Ohridski', Bulgaria, and obtaining the degree of BSc (Hons) in Applied Physics from the University of Salford, UK.

His research concentrates on development of plasma PVD technologies to improve the properties and performance of coatings used for wear, oxidation and corrosion protection in automotive and aerospace industries, as well as through-silicon via metallisation for semiconductor wafer processing, thin film photovoltaics, and cryogenic materials. He has developed technologies for substrate pretreatment prior to coating deposition to improve adhesion, deposition of coatings with dense microstructure, low-pressure plasma nitriding and hybrid processes of plasma nitriding/coating deposition. He has experience with cathodic vacuum arc discharges, dc and pulsed magnetron discharges, and radio-frequency coil enhanced magnetron sputtering. He utilises plasma diagnostics such as optical emission spectroscopy (OES), electrostatic probes, energy-resolved mass spectroscopy and atomic absorption spectroscopy. Materials characterisation includes high-resolution TEM, STEM, STEM-EDS, SEM, and XRD as well as mechanical testing available at NTCPVD.

Arutiun is one of the pioneers of high power impulse magnetron sputtering (HIPIMS) technology and his work on plasma diagnostics, coating deposition and pretreatment with HIPIMS has received seven awards, including:

  • European Physical Society Plasma Physics Division Innovation Award for the use of plasma physics in coating technology and engineering 2018
  • Ionbond Award of Recognition for establishing the UK's largest HIPIMS Production Facility
  • SVC Mentor Award for Industrial Implementation of HIPIMS
  • AVS Peter Mark Memorial Award for seminal contributions to the science and application of High Power Impulse Magnetron Sputtering in 2010
  • Huttinger Industrial Accolade Award of recognition 2008, for the successful development of the first industrially viable HIPIMS Magnetron Power Supply, introduced to market by the legal predecessor of Huttinger Electronic Sp. z.o.o in 2003
  • R F Bunshah Award acknowledging a best paper presented at the International Conference on Metallurgical Thin Films and Coatings (ICMCTF) 2002, San Diego, USA
  • TecVac Prize for best presentation at Materials Congress 2002, London, UK

He is an author of more than 130 publications, 40 invited lectures and five patents in the field of PVD and HIPIMS.

Specialist Area of Interest:
- High Power Impulse Magnetron Sputtering,
- PVD,
- Plasmas,
- Plasma Diagnostics,
- Plasma Discharges,
- Coatings,
- Coating growth and microstructure evolution,
- Coating performance.

Teaching

Business, Technology and Enterprise

Subject Area 

Physics

Modules 

Thermodynamics and Statistical Physics (BSc Second Year)


Research

08.2012-06.2016: High Efficiency CuInSe2 Photovoltaic Modules Deposited at Low Temperature by High Power Impulse Magnetron Sputtering (HIPIMS).
- EPSRC responsive mode grant - Oct. 2006 - 2009;
- Development of HIPIMS-based processes for the deposition of absorber and back-contact layers for low-temperature deposition of thin film solar cells.

10.2006-10.2009: Fundamentals of High Power Impulse Magnetron Sputtering - Plasma Studies and Material Synthesis.

- EPSRC responsive mode grant - Oct. 2006 - 2009;
- Fundamental understanding of the HIPIMS plasma and its effect on coating microstructure. Novel nanoscale multilayers with improved interface quality.

2005-2009: INNOVATIAL - Innovative processes and materials to synthesise knowledge-based ultra-performance nanostructured PVD thin films on gamma Titanium Aluminides.
- European IP project - Framework 6, 2005-2009;
- Development of high density hard coatings to resist high temperature oxidation up to 1000°C. Enhancing the adhesion of superhard nanoscale multilayer coatings on steel and gamma-TiAl substrates. Development of new plasma diagnostic technique for time-resolved analysis.

2005-2006: LPPN - Low Pressure Plasma Nitriding
- MERI Green Shoots Project, 2005-2006;
- Development of a high efficiency nitriding process to be combined with PVD coating in a single production unit. The project involved the development of a nitriding process to work at low pressures, achieving high plasma densities and degree of activation of nitrogen, increasing the depth of nitriding (nitriding case) on stainless steel and high speed steel substrates. The process is in industrial validation tests.

2003-2005: High Power Impulse Magnetron Sputtering
- European CRAFT project - Framework 5, July 2003 – 2005.
- Upscaling and implementation of high power impulse magnetron sputtering technology for the deposition of hard coatings. Development of first commercial-grade HIPIMS power supply on the market (2001). Implementation in automated coating deposition process including cathode and substrate bias design. Deposition of first superhard nanoscale multilayer coatings utilising HIPIMS in industrial conditions.

2000-2003: Droplet Free Metal Ion Sources for PVD Coating Production
- EPSRC, final report submitted September 2003.
- Fundamental plasma studies of the HIPIMS discharge - first indepth characterisation proving the presence of metal ions and the presence of doubly-charged metal species. Temporal evolution of the metal and gas ions in HIPIMS plasma showing gas rarefaction effect and self-sputtering regime. First characterisation of HIPIMS in Ar-N2 atmosphere. Development of HIPIMS technology for pre-treatment of substrates prior to coating deposition for the enhancement of adhesion. Deposition of first nitride films (CrN) showing high microstructural density and resistance to corrosion and wear.
- Development and plasma analysis of radio frequency coil in industrial size batch coater.

10.2001-10.2002: Combined Steered Arc/Unbalanced Magnetron Cathode with Modulated Cathode Spot Confinement Zone.
- MRI Green Shoots project, 2002;
- Development of a magnetic system to provide better target utilisation during arc discharge evaporation.

Collaborators and Sponsors: EPSRC, EU Framework

Publications

Journal articles

Arunachalam Sugumaran, A., Purandare, Y., Shukla, K., Khan, I., Ehiasarian, A., & Hovsepian, P. (2021). TiN/NbN nanoscale multilayer coatings deposited by High Power Impulse Magnetron Sputtering to protect medical grade CoCrMo alloys. Coatings, 11 (7). http://doi.org/10.3390/coatings11070867

Shukla, K., Purandare, Y., Sugumaran, A., Ehiasarian, A., Khan, I., & Hovsepian, P. (2021). Correlation between the microstructure and corrosion performance of the HIPIMS nitrided bio-grade CoCrMo alloy. Journal of Alloys and Compounds, 879, 160429. http://doi.org/10.1016/j.jallcom.2021.160429

Ehiasarian, A., Purandare, Y., Sugumaran, A., Hovsepian, P., Hatto, P., & DeBacker, J. (2021). Improving the Quality of Friction Stir Welds in Aluminium Alloys. Coatings, 11 (5). http://doi.org/10.3390/coatings11050539

Arunachalam Sugumaran, A., Shukla, K., Khan, I., Ehiasarian, A., & Hovespian, P. (2020). Dry sliding wear mechanisms of HIPIMS plasma nitrided CoCrMo alloy for medical implant applications. Vacuum. http://doi.org/10.1016/j.vacuum.2020.109994

Bower, R., Loch, D., Ware, E., Berenov, A., Zou, B., Hovsepian, P., ... Petrov, P. (2020). Complimentary Metal-Oxide-Semiconductor compatible deposition of nanoscale transition-metal nitride thin films for plasmonic applications. ACS Applied Materials and Interfaces. http://doi.org/10.1021/acsami.0c10570

Krishnanand, S., Arunachalam Sugumaran, A., Khan, I., Ehiasarian, A., & Hovsepian, P. (2020). Low pressure plasma nitrided CoCrMo alloy utilising HIPIMS discharge for biomedical applications. Journal of The Mechanical Behavior of Biomedical Materials. http://doi.org/10.1016/j.jmbbm.2020.104004

Shukla, K., Purandare, Y., Khan, I., Ehiasarian, A., & Hovsepian, P. (2020). Effect of Nitriding Voltage on the Impact Load Fatigue and Fracture Toughness Behaviour of CoCrMo Alloy Nitrided Utilising a HIPIMS Discharge. Surface and Coatings Technology, 400, 126227. http://doi.org/10.1016/j.surfcoat.2020.126227

Purandare, Y., Robinson, G.L., Ehiasarian, A.P., & Hovsepian, P.E. (2020). Investigation of High Power Impulse Magnetron Sputtering deposited nanoscale CrN/NbN multilayer coating for tribocorrosion resistance. Wear, 203312. http://doi.org/10.1016/j.wear.2020.203312

Sharp, J., Müller, I.C., Mandal, P., Abbas, A., Nord, M., Doye, A., ... Rainforth, W.M. (2019). Characterisation of a High-Power Impulse Magnetron Sputtered C/Mo/W wear resistant coating by transmission electron microscopy. Surface and Coatings Technology, 377, 124853. http://doi.org/10.1016/j.surfcoat.2019.08.007

Hovsepian, P., & Ehiasarian, A. (2019). Six strategies to produce application tailored nanoscale multilayer structured PVD coatings by conventional and High Power Impulse Magnetron Sputtering (HIPIMS). Thin Solid Films, 137409. http://doi.org/10.1016/j.tsf.2019.137409

Ma, D., Harvey, T., Wellman, R., Ehiasarian, A., Hovsepian, P., Arunprabhu, S., ... Wood, R. (2019). Cavitation erosion performance of CrAlYN/CrN nanoscale multilayer coatings deposited on Ti6Al4V by HIPIMS. Journal of Alloys and Compounds, 788, 719-728. http://doi.org/10.1016/j.jallcom.2019.02.238

Hovsepian, P., Ehiasarian, A., Purandare, Y., Mayr, P., Abstoss, K., MosqueraFeijoo, M., ... Trujillo, J. (2018). Novel HIPIMS deposited nanostructured CrN/NbN coatings for environmental protection of steam turbine components. Journal of Alloys and Compounds, 746, 583-593. http://doi.org/10.1016/j.jallcom.2018.02.312

Aguero, A., Lorenza, M.J., Hovsepian, P., Ehiasarian, A., Purandare, Y., & Muelas, R. (2018). Long-term behaviour of Nb and Cr nitrides nanostructured coatings under steam at 650°C. Mechanistic considerations. Journal of Alloys and Compounds, 739, 549-558. http://doi.org/10.1016/j.jallcom.2017.12.288

Gajewski, W., Ehiasarian, A.P., Żelechowski, M., & Hovsepian, P.E. (2017). Composition and dynamics of high power impulse magnetron discharge at W-Mo-C target in argon atmosphere. Surface and Coatings Technology, 327, 185-191. http://doi.org/10.1016/j.surfcoat.2016.11.006

Biswas, B., Purandare, Y., Arunachalamsugumaran, A., Loch, D., Creasy, S., Khan, I., ... Hovsepian, P. (2017). Defect growth in multilayer chromium nitride/niobium nitride coatings produced by combined high power impulse magnetron sputtering and unbalance magnetron sputtering technique. Thin Solid Films, 636, 558-566. http://doi.org/10.1016/j.tsf.2017.06.027

Arunachalamsugumaran, A., Purandare, Y., Ehiasarian, A., & Hovsepian, P. (2017). Corrosion behaviour of post-deposition polished droplets-embedded arc evaporated and droplets-free HIPIMS/DCMS coatings. Corrosion, 73, 685-693. http://doi.org/10.5006/2064

Loch, D., Aranda Gonzalvo, Y., & Ehiasarian, A. (2017). Plasma analysis of Inductively Coupled Impulse Sputtering of Cu, Ti and Ni. Plasma Sources Science and Technology, 26 (6). http://doi.org/10.1088/1361-6595/aa6f79

Müller, I.C., Sharp, J., Rainforth, W.M., Hovsepian, P., & Ehiasarian, A. (2017). Tribological response and characterization of Mo–W doped DLC coating. Wear, 376-37 (Part B), 1622-1629. http://doi.org/10.1016/j.wear.2016.11.036

Loch, D., & Ehiasarian, A. (2016). Study of the Effect of RF-power and process pressure on the morphology of copper and titanium sputtered by ICIS. Surface and coatings technology, 327, 200-206. http://doi.org/10.1016/j.surfcoat.2016.10.018

Ehiasarian Hovsepian, P., Papken Ehiasarian, A., Purandare, Y., Arunachalam Sugumaran, A., Marriott, T., & Khan, I. (2016). Development of superlattice CrNNbN coatings for joint replacements deposited by High Power Impulse Magnetron Sputtering. Journal of Materials Science: Materials in Medicine, 27 (9). http://doi.org/10.1007/s10856-016-5751-0

Hovsepian, P., Ehiasarian, A., Purandare, Y., Biswas, B., Perez, F., Lasanta, M., ... Aguero, A. (2016). Performance of HIPIMS deposited CrN/NbN nanostructured coatings exposed to 650°C in pure steam environment. Materials chemistry and physics, 179, 110-119. http://doi.org/10.1016/j.matchemphys.2016.05.017

Purandare, Y., Ehiasarian, A., & Hovsepian, P. (2016). Target poisoning during CrN deposition by mixed high power impulse magnetron sputtering and unbalanced magnetron sputtering technique. Journal of Vacuum Science & Technology A, 34 (4), 041502-1. http://doi.org/10.1116/1.4950886

Hovsepian, P., Mandal, P., Ehiasarian, A., Safran, G., Tietema, R., & Doerwald, D. (2016). Friction and wear behaviour of Mo − W doped carbon-based coating during boundary lubricated sliding. Applied Surface Science, 366, 260-274. http://doi.org/10.1016/j.apsusc.2016.01.007

Mandal, P., Ehiasarian, A., & Hovsepian, P.E. (2015). Tribological behaviour of Mo–W doped carbon-based coating at ambient condition. Tribology International, 90, 135-147. http://doi.org/10.1016/j.triboint.2015.04.017

Mandal, P., Ehiasarian, A., & Hovsepian, P. (2015). Isothermal and dynamic oxidation behaviour of Mo−W doped carbon-based coating. Applied Surface Science, 353, 1291-1309. http://doi.org/10.1016/j.apsusc.2015.07.057

Loch, D.A.L., Gonzalvo, Y.A., & Ehiasarian, A.P. (2015). Nickel coatings by Inductively Coupled Impulse Sputtering (ICIS). Surface and coatings technology, 267, 98-104. http://doi.org/10.1016/j.surfcoat.2014.11.029

Dudziak, T., Du, H.L., Datta, P.K., Ehiasarian, A., Reinhard, C., & Hovsepian, P. (2014). Enhanced sulphidation/oxidation resistance of Ti–45Al–8Nb alloy by multilayered coatings at 850°C for up to 675 h. Corrosion Engineering, Science and Technology, 49 (7), 590-602. http://doi.org/10.1179/1743278213Y.0000000142

Mandal, P., Ehiasarian, A., & Hovsepian, P. (2014). Lubricated sliding wear mechanism of chromium-doped graphite-like carbon coating. Tribology International, 77, 186-195. http://doi.org/10.1016/j.triboint.2014.04.007

Hovsepian, P., Ehiasarian, A., & Petrov, I. (2014). Structure evolution and Properties of TiAlCN/VCN Coatings Deposited by Reactive HIPIMS. Surface and Coatings Technology, 257, 38-47. http://doi.org/10.1016/j.surfcoat.2014.07.065

Bandorf, R., & Ehiasarian, A. (2014). 4th International Conference on Fundamentals and Applications of HIPIMS and Final Event of COST Action MP0804 "Highly Ionized Pulse Plasma Processes - HIPP Processes", 12-13.6.2013, Braunschweig, Germany. Surface and Coatings Technology, 250, 1. http://doi.org/10.1016/j.surfcoat.2014.04.006

Rtimi, S., Baghriche, O., Pulgarin, C., Ehiasarian, A., Bandorf, R., & Kiwi, J. (2014). Comparison of HIPIMS sputtered Ag- and Cu-surfaces leading to accelerated bacterial inactivation in the dark. Surface and Coatings Technology, 250, 14-20. http://doi.org/10.1016/j.surfcoat.2014.02.029

Hovsepian, P., Arunachalamsugumaran, A., Purandare, Y., Loch, D., & Ehiasarian, A. (2014). Effect of the degree of high power impulse magnetron sputtering utilisation on the structure and properties of TiN films. Thin Solid Films, 562, 132-139. http://doi.org/10.1016/j.tsf.2014.04.002

Purandare, Y., Ehiasarian, A., Santana, A., & Hovsepian, P. (2014). ZrN coatings deposited by high power impulse magnetron sputtering and cathodic arc techniques. Journal of Vacuum Science & Technology A, 32 (3). http://doi.org/10.1116/1.4869975

Dudziak, T., Du, H.L., Datta, P.K., Ehiasarian, A.P., Reinhard, C., & Hovsepian, P.E. (2014). Enhanced sulphidation/oxidation resistance of Ti-45Al-8Nb alloy by nanostructured CrAlYN/CrN coatings at 750 °c. Materials and Corrosion, 65 (1), 45-60. http://doi.org/10.1002/maco.201106417

Lewin, E., Loch, D., Montagne, A., Ehiasarian, A.P., & Patscheider, J. (2013). Comparison of Al–Si–N nanocomposite coatings deposited by HIPIMS and DC magnetron sputtering. Surface and coatings technology, 232, 680-689. http://doi.org/10.1016/j.surfcoat.2013.06.076

Ehiasarian, A., Pulgarin, C., & Kiwi, J. (2012). Inactivation of bacteria under visible light and in the dark by Cu films. Advantages of Cu-HIPIMS-sputtered films. Environmental Science and Pollution Research, 19 (9), 3791-3797. http://doi.org/10.1007/s11356-011-0734-7

Ehiasarian, A., Hecimovic, A., de los Arcos, T., New, R., der Gathen, V.S.-.V., Boke, M., & Winter, J. (2012). High power impulse magnetron sputtering discharges: Instabilities and plasma self-organization. Applied Physics Letters, 100 (11), 114101. http://doi.org/10.1063/1.3692172

Baghriche, O., Zertal, A., Ehiasarian, A.P., Sanjines, R., Pulgarin, C., Kusiak-Nejman, E., ... Kiwi, J. (2012). Advantages of highly ionized pulse plasma magnetron sputtering (HIPIMS) of silver for improved E. coli inactivation. Thin Solid Films, 520 (9), 3567-3573. http://doi.org/10.1016/j.tsf.2011.12.060

Baghriche, O., Ehiasarian, A.P., Kusiak-Nejman, E., Pulgarin, C., Sanjines, R., Morawski, A.W., & Kiwi, J. (2012). High power impulse magnetron sputtering (HIPIMS) and traditional pulsed sputtering (DCMSP) Ag-surfaces leading to E. coli inactivation. Journal of Photochemistry and Photobiology A: Chemistry, 227 (1), 11-17. http://doi.org/10.1016/j.jphotochem.2011.10.017

Kamath, G., Ehiasarian, A.P., Purandare, Y., & Hovsepian, P. (2011). Tribological and oxidation behaviour of TiAlCN/VCN nanoscale multilayer coating deposited by the combined HIPIMS/(HIPIMS-UBM) technique. Surface and Coatings Technology, 205 (8-9), 2823. http://doi.org/10.1016/j.surfcoat.2010.10.049

Purandare, Y., Ehiasarian, A., & Hovsepian, P. (2011). Structure and properties of ZrN coatings deposited by high power impulse magnetron sputtering technology. Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films, 29 (1), 011004. http://doi.org/10.1116/1.3520640

Ehiasarian, A., Vetushka, A., Gonzalvo, Y.A., Sáfrán, G., Székely, L., & Barna, P.B. (2011). Influence of high power impulse magnetron sputtering plasma ionization on the microstructure of TiN thin films. Journal of Applied Physics, 109 (10), 104314. http://doi.org/10.1063/1.3579443

Kusiak-Nejman, E., Morawski, A.W., Ehiasarian, A.P., Pulgarin, C., Baghriche, O., Mielczarski, E., ... Kiwi, J. (2011). E. coli Inactivation by High-Power Impulse Magnetron Sputtered (HIPIMS) Cu Surfaces. The Journal of Physical Chemistry C, 115 (43), 21113-21119. http://doi.org/10.1021/jp204503y

Braun, R., Lange, A., Hovsepian, P.E., Ehiasarian, A.P., Tietema, R., & Leyens, C. (2011). Oxidation behaviour of TiAlYN/CrN and CrAlYN/CrN nanoscale multilayer coatings with Al 2O 3 topcoat deposited on γ-TiAl alloys. Materials at High Temperatures, 28 (4), 324-335. http://doi.org/10.3184/096034011X13189511864595

Yukimura, K., Ehiasarian, A.P., Ogiso, H., Nakano, S., & Azuma, K. (2011). Metal ionization in a high-power pulsed sputtering penning discharge. IEEE Transactions on Plasma Science, 39 (11 PART 2), 3125-3132. http://doi.org/10.1109/TPS.2011.2163428

Yukimura, K., Ogiso, H., Nakano, S., & Ehiasarian, A.P. (2011). High-power inductively coupled impulse sputtering glow plasma. IEEE Transactions on Plasma Science, 39 (11 PART 2), 3085-3094. http://doi.org/10.1109/TPS.2011.2160409

Vishnyakov, V.M., Ehiasarian, A.P., Vishnyakov, V.V., Hovsepian, P., & Colligon, J.S. (2011). Amorphous boron containing silicon carbo-nitrides created by ion sputtering. Surface and Coatings Technology, 206 (1), 149-154. http://doi.org/10.1016/j.surfcoat.2011.07.002

Zhou, Z., Rainforth, W.M., Gass, M.H., Bleloch, A., Ehiassarian, A.P., & Hovsepian, P.E. (2011). C/CrC nanocomposite coating deposited by magnetron sputtering at high ion irradiation conditions. Journal of Applied Physics, 110 (7). http://doi.org/10.1063/1.3642996

Hecimovic, A., & Ehiasarian, A.P. (2011). Temporal evolution of the ion fluxes for various elements in HIPIMS plasma discharge. IEEE Transactions on Plasma Science, 39 (4 PART 2), 1154-1164. http://doi.org/10.1109/TPS.2011.2106516

Hovsepian, P., & Ehiasarian, A. (2010). Novel CrAlYN/CrN nanoscale multilayer PVD coatings produced by the combined high power impulse magnetron sputtering/unbalanced magnetron sputtering technique for environmental protection of gamma TiAl alloys. Surface and Coatings Technology, 204 (16-17), 2702-2708. http://doi.org/10.1016/j.surfcoat.2010.02.021

Kamath, G., Ehiasarian, A.P., & Hovsepian, P. (2010). Properties of TiAlCN/VCN nanoscale multilayer coatings deposited by mixed high-power impulse magnetron sputtering (HiPIMS) and unbalanced magnetron sputtering processes - impact of HiPIMS during coating. IEEE Transactions on Plasma Science, 38 (11), 3062-3070. http://doi.org/10.1109/TPS.2010.2052473

Braun, R., Schulz, U., Leyens, C., Hovsepian, P., & Ehiasarian, A. (2010). Oxidation and fatigue behaviour of γ-TiAl coated with HIPIMS CrAlYN/CrN nanoscale multilayer coatings and EB-PVD thermal barrier coatings. International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde), 101 (5), 648-656. http://doi.org/10.3139/146.110323

Purandare, Y., Ehiasarian, A., Stack, M.M., & Hovsepian, P. (2010). CrN/NbN coatings deposited by HIPIMS: A preliminary study of erosion–corrosion performance. Surface and Coatings Technology, 204 (8), 1158-1162. http://doi.org/10.1016/j.surfcoat.2009.11.006

Hovsepian, P., Ehiasarian, A., & Petrov, I. (2010). TiAlCN/VCN nanolayer coatings suitable for machining of Al and Ti alloys deposited by combined high power impulse magnetron sputtering/unbalanced magnetron sputtering. Surface Engineering, 26 (8), 610. http://doi.org/10.1179/026708408X336337

Yukimura, K., & Ehiasarian, A. (2010). Properties of TiAlCN/VCN Nanoscale MultilayerCoatings Deposited by Mixed High-Power ImpulseMagnetron Sputtering (HiPIMS) and UnbalancedMagnetron Sputtering Processes—Impact ofHiPIMS During Coating. IEEE Transactions on Plasma Science, 38 (11), 3005-3006. http://doi.org/10.1109/TPS.2010.2073131

Hecimovic, A., & Ehiasarian, A.P. (2010). Spatial and temporal evolution of ion energies in high power impulse magnetron sputtering plasma discharge. Journal of Applied Physics, 108 (6), 063301. http://doi.org/10.1063/1.3486018

Leroy, W.P., Mahieu, S., Depla, D., & Ehiasarian, A.P. (2010). High power impulse magnetron sputtering using a rotating cylindrical magnetron. Journal of Vacuum Science and Technology A, 28 (1), 108-111. http://doi.org/10.1116/1.3271136

Ehiasarian, A., Andersson, J., & Anders, A. (2010). Distance-dependent plasma composition and ion energy in high power impulse magnetron sputtering. Journal of Physics D: Applied Physics, 43 (27), 275204. http://doi.org/10.1088/0022-3727/43/27/275204

Rafaja, D., Wüstefeld, C., Kutzner, J., Ehiasarian, A.P., Šíma, M., Klemm, V., ... Kortus, J. (2010). Magnetic response of (Cr,Al,Si)N nanocrystallites on the microstructure of Cr-Al-Si-N nanocomposites. Zeitschrift fur Kristallographie, 225 (12), 599-609. http://doi.org/10.1524/zkri.2010.1347

Hovsepian, P.E., Ehiasarian, A.P., & Ratayski, U. (2009). CrAlYCN/CrCN nanoscale multilayer PVD coatings deposited by the combined High Power Impulse Magnetron Sputtering/Unbalanced Magnetron Sputtering (HIPIMS/UBM) technology. Surface and coatings technology, 203 (9), 1237-1243. http://doi.org/10.1016/j.surfcoat.2008.10.033

Safran, G., Reinhard, C., Ehiasarian, A.P., Barna, P.B., Szekely, L., Geszti, O., & Hovsepian, P.E. (2009). Influence of the bias voltage on the structure and mechanical performance of nanoscale multilayer CrAlYN/CrN physical vapor deposition coatings. Journal of Vacuum Science & Technology A, 27 (2), 174-182. http://doi.org/10.1116/1.3065675

Zhou, Z.X., Ross, I.M., Rainforth, W.M., Cavaleiro, A., Ehiasarian, A.P., & Hovsepian, P.E. (2009). Degradation of a C/CrC PVD coating after annealing in Ar + H-2 at 700 degrees C studied by Raman spectroscopy and transmission electron microscopy. Materials at high temperatures, 26 (2), 169-176. http://doi.org/10.3184/096034009X462971

Hecimovic,, A., & Ehiasarian, A.P. (2009). Time evolution of ion energies in HIPIMS of chromium plasma discharge. Journal of Physics D: Applied Physics, 42 (13). http://doi.org/10.1088/0022-3727/42/13/135209

Purandare, Y.P., Ehiasarian, A.P., & Hovsepian, P.E. (2008). Deposition of nanoscale multilayer CrN/NbN physical vapor deposition coatings by high power impulse magnetron sputtering. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 26 (2), 288-296. http://doi.org/10.1116/1.2839855

Hovsepian, P.E., Ehiasarian, A.P., Deeming, A., & Schimpf, C. (2008). Novel TiAlCN/VCN nanoscale multilayer PVD coatings deposited by the combined high-power impulse magnetron sputtering/unbalanced magnetron sputtering (HIPIMS/UBM) technology. Vacuum, 82 (11), 1312-1317. http://doi.org/10.1016/j.vacuum.2008.03.064

Ehiasarian, A.P., Vetushka, A., Hecimovic, A., & Konstantinidis, S. (2008). Ion composition produced by high power impulse magnetron sputtering discharges near the substrate. Journal of Applied Physics, 104 (8). http://doi.org/10.1063/1.3000446

Vetushka, A., & Ehiasarian, A.P. (2008). Plasma dynamic in chromium and titanium HIPIMS discharges. Journal of Physics D: Applied Physics, 41 (1). http://doi.org/10.1088/0022-3727/41/1/015204

Hecimovic, A., Burcalova, K., & Ehiasarian, A.P. (2008). Origins of ion energy distribution function (IEDF) in high power impulse magnetron sputtering (HIPIMS) plasma discharge. Journal of Physics D: Applied Physics, 41 (9). http://doi.org/10.1088/0022-3727/41/9/095203

Andersson, J., Ehiasarian, A., & Anders, A. (2008). Observation of Ti4+ ions in a high power impulse magnetron sputtering plasma. Applied Physics Letters, 93, 071504. http://doi.org/10.1063/1.2973179

Burcalova, K., Hecimovic, A., & Ehiasarian, A.P. (2008). Ion energy distributions and efficiency of sputtering process in HIPIMS system. Journal of Physics D: Applied Physics, 41 (11). http://doi.org/10.1088/0022-3727/41/11/115306

Anders, A., Andersson, J., & Ehiasarian, A. (2008). Erratum: High power impulse magnetron sputtering: Current-voltage-time characteristics indicate the onset of sustained self-sputtering (Journal of Applied Physics (2007) 102 (113303)). Journal of Applied Physics, 103 (3). http://doi.org/10.1063/1.2875523

Reinhard, C., Ehiasarian, A.P., & Hovsepian, P.E. (2007). CrN/NbN superlattice structured coatings with enhanced corrosion resistance achieved by high power impulse magnetron sputtering interface pre-treatment. Thin Solid Films, 515 (7-8), 3685-3692. http://doi.org/10.1016/j.tsf.2006.11.014

Ehiasarian, A.P., Anders, A., & Petrov, I. (2007). Combined filtered cathodic arc etching pretreatment-magnetron sputter deposition of highly adherent CrN films. Journal of Vacuum Science & Technology A, 25 (3), 543-550. http://doi.org/10.1116/1.2730512

Anders, A., Andersson, J., & Ehiasarian, A.P. (2007). High power impulse magnetron sputtering: Current-voltage-time characteristics indicate the onset of sustained self-sputtering. Journal of Applied Physics, 102 (11). http://doi.org/10.1063/1.2817812

Hovsepian, P.E., Ehiasarian, A.P., Deeming, A., & Schimpf, C. (2007). VmeCN based nanoscale multilayer PVD coatings deposited by the combined high power impulse magnetron sputtering/unbalanced magnetron sputtering technology. Plasma Processes and Polymers, 4 (SUPPL.1). http://doi.org/10.1002/ppap.200732201

Reinhard, C., Ehiasarian, A.P., & Hovsepian, P.E. (2007). Oxidation behaviour of nanoscale multilayer CrAlYN/CrN coatings deposited by the combined high power impulse magnetronsputtering/unbalanced magnetron sputtering technique. Plasma Processes and Polymers, 4 (SUPPL.1). http://doi.org/10.1002/ppap.200732204

Luo, Q., Schimpf, C., Ehiasarian, A.P., Chen, L., & Hovsepian, P. (2007). Structure and wear mechanisms of nano-structured TiAlCN/VCN multilayer coatings. Plasma Process and Polymers, 4 (51), S916-S920. http://doi.org/10.1002/ppap.200732205

Ehiasarian, A., Gonzalvo, Y.A., & Whitmore, T.D. (2007). Time-resolved ionisation studies of the high power impulse magnetron discharge in mixed argon and nitrogen atmosphere. Plasma Processes and Polymers, 4 (1), S309-S313. http://doi.org/10.1002/ppap.200730806

Ehiasarian, A., Petrov, I., & Wen, J.G. (2007). Interface microstructure engineering by high power impulse magnetron sputtering for the enhancement of adhesion. Journal of applied physics, 101 (5), 054301-1. http://doi.org/10.1063/1.2697052

Lewis, D.B., Creasey, S.J., Wustefeld, C., Ehiasarian, A.P., & Hovsepian, P.E. (2006). The role of the growth defects on the corrosion resistance of CrN/NbN superlattice coatings deposited at low temperatures. Thin Solid Films, 503 (1-2), 143-148. http://doi.org/10.1016/j.tsf.2005.08.375

van Essen, P., Hoy, R., Kamming, J.D., Ehiasarian, A.P., & Janssen, G. (2006). Scratch resistance and wear of CrNx coatings. Surface and Coatings Technology, 200 (11), 3496-3502. http://doi.org/10.1016/j.surfcoat.2004.09.020

Bohlmark, J., Lattemann, M., Gudmundsson, J.T., Ehiasarian, A.P., Gonzalvo, Y.A., Brenning, N., & Helmersson, U. (2006). The ion energy distributions and ion flux composition from a high power impulse magnetron sputtering discharge. Thin Solid Films, 515 (4), 1522-1526. http://doi.org/10.1016/j.tsf.2006.04.051

Helmersson, U., Lattemann, M., Bohlmark, J., Ehiasarian, A.P., & Gudmundsson, J.T. (2006). Ionized physical vapor deposition (IPVD): A review of technology and applications. Thin Solid Films, 513 (1-2), 1-24. http://doi.org/10.1016/j.tsf.2006.03.033

Lewis, D.B., Reitz, D., Wüstefeld, C., Ohser-Wiedemann, R., Oettel, H., Ehiasarian, A.P., & Hovsepian, P.E. (2006). Chromium nitride/niobium nitride nano-scale multilayer coatings deposited at low temperature by the combined cathodic arc/unbalanced magnetron technique. Thin Solid Films, 503 (1-2), 133-142. http://doi.org/10.1016/j.tsf.2005.08.369

Bohlmark, J., Alami, J., Christou, C., Ehiasarian, A.P., & Helmersson, U. (2005). Ionization of sputtered metals in high power pulsed magnetron sputtering. Journal of Vacuum Science & Technology A, 23 (1), 18-22. http://doi.org/10.1116/1.1818135

Hovsepian, P., Kok, Y.N., Ehiasarian, A., & Haasch, R. (2005). Phase separation and formation of the self-organised nanostructure in C/Cr coatings in conditions of high ion irradiation. Surface and coatings technology, 5-6. http://doi.org/10.1016/j.surfcoat.2005.08.095

Ehiasarian, A.P., Hovsepian, P.E., New, R., & Valter, J. (2004). Influence of steering magnetic field on the time-resolved plasma chemistry in cathodic arc discharges. Journal of Physics D: Applied Physics, 37 (15), 2101-2106. http://doi.org/10.1088/0022-3727/37/15/008

Zhou, Z.X., Rainforth, W.M., Rother, B., Ehiasarian, A.P., Hovsepian, P.E., & Munz, W.D. (2004). Elemental distributions and substrate rotation in industrial TiAlN/VN superlattice hard PVD coatings. Surface and Coatings Technology, 183 (2-3), 275-282. http://doi.org/10.1016/j.surfcoat.2003.09.060

Ehiasarian, A., Hovsepian, P., Hultman, L., & Helmersson, U. (2004). Comparison of microstructure and mechanical properties of chromium nitride-based coatings deposited by high power impulse magnetron sputtering and by the combined steered cathodic arc/unbalanced magnetron technique. Thin solid films, 457 (2), 270-277. http://doi.org/10.1016/j.tsf.2003.11.113

Ehiasarian, A., Munz, W.D., Hultman, L., Helmersson, U., Petrov, I., & Seitz, F. (2003). High power pulsed magnetron sputtered CrNx films. Galvanotechnik, 94 (6), 1480-1487.

Munz, W.D., Lewis, D.B., Hovsepian, P.E., Schonjahn, C., Ehiasarian, A.P., & Smith, I.J. (2001). Industrial scale manufactured superlattice hard PVD coatings. Surface Engineering, 17 (1), 15-27. http://doi.org/10.1179/026708401101517557

Conference papers

Bandorf, R., & Ehiasarian, A. (2018). Editorial - 8th International Conference on Fundamentals and Applications of HIPIMS, 13.-14.6.2017, Braunschweig, Germany. Surface and Coatings Technology, 352, 662. http://doi.org/10.1016/j.surfcoat.2018.08.087

Illana, A., Mato, S., Ehiasarian, A., Purandare, Y., Lasanta, M., Miguel, M., ... Trujillo, F. (2017). Substrate finishing and niobium content effects on the high temperature corrosion resistance in steam atmosphere of CrN/NbN superlattice coatings deposited by PVD-HIPIMS. Oxidation of Metals, 87 (3-4), 455-467. http://doi.org/10.1007/s11085-016-9701-5

Sharp, J., Muller, I.C., Mandal, P., Abbas, A., West, G., Rainforth, W.M., ... Hovsepian, P. (2015). Cross sectional TEM analysis of duplex HIPIMS and DC magnetron sputtered Mo and W doped carbon coatings. Journal of Physics: Conference Series, 644, 012011. http://doi.org/10.1088/1742-6596/644/1/012011

Mandal, P., Ehiasarian, A., & Hovsepian, P. (2015). Wear mechanism of Mo−W doped carbon-based coating during boundary lubricated sliding. In SVC TechCon 2015, Santa Clara, USA, 27 April 2015 - 30 April 2015.

Aull, S., Calatroni, S., Doebert, S., Junginger, T., Ehiasarian, A.P., Knobloch, J., & Terenziani, G. (2013). RF characterization of niobium films for superconducting cavities. IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference, 2399-2401.

Braun, R., Keim, K., Ehiasarian, A.P., & Hovsepian, P.E. (2013). Oxidation protection of γ-TiAl alloys by intermetallic Ti-Al-Cr-Zr coatings. Materials Research Society Symposium Proceedings, 1516, 89-94. http://doi.org/10.1557/opl.2012.1562

Loch, D., & Ehiasarian, A. (2012). A novel sputtering technique: Inductively Coupled Impulse Sputtering (ICIS). IOP Conference Series: Materials Science and Engineering, 39 (012006). http://doi.org/10.1088/1757-899X/39/1/012006

Ehiasarian, A.P., Hecimovic, A., Winter, J., De Los Arcos, T., New, R., Schulz-Von Der Gathen, V., & Böke, M. (2012). Plasma self-organisation in high power impulse magnetron sputtering discharges. IOP Conference Series: Materials Science and Engineering, 39 (1). http://doi.org/10.1088/1757-899X/39/1/012012

Ehiasarian, A., & Bandorf, R. (2012). Preface. IOP Conference Series: Materials Science and Engineering, 39 (1). http://doi.org/10.1088/1757-899X/39/1/011001

Hovsepian, P.E., Kamath, G., Ehiasarian, A.P., Haasch, R., & Petrov, I. (2012). Microstructure, oxidation and tribological properties of TiAlCN/VCN coatings deposited by reactive HIPIMS. IOP Conference Series: Materials Science and Engineering, 39 (1). http://doi.org/10.1088/1757-899X/39/1/012011

Zhou, Z., Ross, I.M., Ma, L., Rainforth, W.M., Ehiasarian, A., & Hovsepian, P. (2011). Wear of hydrogen free C/Cr PVD coating against Al2O3 at room temperature. Wear, 271 (9-10), 2150-2156. http://doi.org/10.1016/j.wear.2011.02.028

Papa, F., Gerdes, H., Bandorf, R., Ehiasarian, A.P., Kolev, I., Braeuer, G., ... Krug, T. (2011). Deposition rate characteristics for steady state high power impulse magnetron sputtering (HIPIMS) discharges generated with a modulated pulsed power (MPP) generator. Thin Solid Films, 520 (5), 1559-1563. http://doi.org/10.1016/j.tsf.2011.09.004

Ross, I.M., Zhou, Z., Rainforth, W.M., Bleloch, A., Ehiasarian, A., & Hovsepian, P. (2010). EELS and STEM analysis of metal nitride/substrate interfaces. Journal of Physics: Conference Series, 241, 012102. http://doi.org/10.1088/1742-6596/241/1/012102

Halbe, A., Johnson, P., Jackson, S., Weiss, R., Avachat, U., Welsh, A., & Ehiasarian, A. (2010). High efficiency Copper Indium Gallium Diselenide (CIGS) by high Power Impulse Magnetron Sputtering (HIPIMS): a promising and scalable application in thin-film photovoltaics. In Materials Research Society Symposium Proceedings, (pp. 179-184). Materials Research Society

Ehiasarian, A.P. (2010). High-power impulse magnetron sputtering and its applications. Pure and Applied Chemistry, 82 (6), 1247-1258. http://doi.org/10.1351/PAC-CON-09-10-43

Kamath, G., Ehiasarian, A., Purandare, Y., & Hovsepian, P. (2010). Microstructural and Oxidative Mechanical Wear Study on TiAlCN/VCN. 53rd Annual Technical Conference Proceedings.

Hovsepian, P.E., Ehiasarian, A.P., Purandare, Y.P., Braun, R., & Ross, I.M. (2009). Effect of High Ion Irradiation on the Structure, Properties and High Temperature Tribology of Nanoscale CrAlYN/CrN Multilayer Coating Deposited by HIPIMS-HIPIMS Technique. Plasma Processes and Polymers, 6, S118-S123. http://doi.org/10.1002/ppap.200930412

Yukimura, K., & Ehiasarian, A.P. (2009). Generation of RF plasma assisted high power pulsed sputtering glow discharge without using a magnetic field. Nuclear Instruments and Methods in Physics Research. Section B-Beam Interactions with Materials and Atoms, 267 (8-9), 1701-1704. http://doi.org/10.1016/j.nimb.2009.01.110

Machunze, R., Ehiasarian, A.P., Tichelaar, F.D., & Janssen, G. (2009). Stress and texture in HIPIMS TiN thin films. Thin Solid Films, 518 (5), 1561-1565. http://doi.org/10.1016/j.tsf.2009.09.069

Ross, I.M., Rainforth, W.M., Zhou, Z., Walker, J.C., Reinhard, C., Ehiasarian, A.P., ... Leyens, C. (2008). Oxidation characteristics of γ-TiAl-8Nb coated with a CrAlYN/CrN nanoscale multilayer coating. TMS Annual Meeting, 315-322.

Braun, R., Müßener, D., Leyens, C., Hovsepian, P.E., Reinhard, C., & Ehiasarian, A.P. (2008). Environmental protection of γ-TiAl alloys coated with CrAlYN/CrN nanoscale multilayer coatings and EB-PVD thermal barrier coatings. TMS Annual Meeting, 341-348.

Ross, I.M., Rainforth, W.M., Zhou, Z., Walker, J.C., Reinhard, C., Ehiasarian, A.P., ... Braun, R. (2008). Oxidation performance of nano-scale multilayer coatings on γ-TiAl. Journal of Physics: Conference Series, 126. http://doi.org/10.1088/1742-6596/126/1/012022

Hovsepian, P.E., Reinhard, C., & Ehiasarian, A.P. (2006). CrAlYN/CrN superlattice coatings deposited by the combined high power impulse magnetron sputtering/unbalanced magnetron sputtering technique. Surface and Coatings Technology, 201 (7), 4105-4110. http://doi.org/10.1016/j.surfcoat.2006.08.027

Lattemann, M., Ehiasarian, A.P., Bohmark, J., Persson, P.A.O., & Helmersson, U. (2006). Investigation of high power impulse magnetron sputtering pretreated interfaces for adhesion enhancement of hard coatings on steel. Surface and Coatings Technology, 200 (22-23), 6495-6499. http://doi.org/10.1016/j.surfcoat.2005.11.082

Helmersson, U., Lattemann, M., Alami, J., Bohlmark, J., Ehiasarian, A.P., & Gudmundsson, J.T. (2006). Highly ionized sputter discharges for thin film fabrication. Bulletin of the Russian Academy of Sciences: Physics, 70 (8), 1421-1424.

Helmersson, U., Lattemann, M., Alami, J., Bohlmark, J., Ehiasarian, A.P., & Gudmundsson, J.T. (2005). High power impulse magnetron sputtering discharges and thin film growth: A brief review. Proceedings, Annual Technical Conference - Society of Vacuum Coaters, 458-464.

Ehiasarian, A.P., Hovsepian, P.E., Lattemann, M., Böhlmark, J., & Helmersson, U. (2005). High Power Impulse Magnetron Sputtering (HIPIMS) pre-treatment for the deposition of hard coatings. Proceedings, Annual Technical Conference - Society of Vacuum Coaters, 480-484.

Bohlmark, J., Ehiasarian, A.P., Lattemann, M., Alami, J., & Helmersson, U. (2005). The ion energy distributions in a high power impulse magnetron plasma. Proceedings, Annual Technical Conference - Society of Vacuum Coaters, 470-473.

Hovsepian, P.E., Kok, Y.N., Ehiasarian, A.P., Haasch, R., Wen, J.G., & Petrov, I. (2005). Phase separation and formation of the self-organised layered nanostructure in C/Cr coatings in conditions of high ion irradiation. Surface and Coatings Technology, 200 (5-6), 1572-1579. http://doi.org/10.1016/j.surfcoat.2005.08.095

Ehiasarian, A., Hovsepian, P., New, R., & Valter, J. (2005). Influence of steering magnetic field on the time-resolved plasma chemistry in cathodic arc discharges. In Proceedings - XXIth International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV, September 27, 2004 - October 1, 2004, Yalta, Ukraine, (pp. 521-524). Institute of Electrical and Electronics Engineers Inc: http://doi.org/10.1109/DEIV.2004.1422664

Hovsepian, P.E., Kok, Y.N., Ehiasarian, A.P., Erdemir, A., Wen, J.G., & Petrov, I. (2004). Structure and tribological behaviour of nanoscale multilayer C/Cr coatings deposited by the combined steered cathodic arc/unbalanced magnetron sputtering technique. Thin Solid Films, 447, 7-13. http://doi.org/10.1016/j.tsf.2003.09.009

Zhou, Z., Rainforth, W.M., Lewis, D.B., Creasy, S., Forsyth, J.J., Clegg, E., ... Munz, W.D. (2004). Oxidation behaviour of nanoscale TiAlN/VN multilayer coatings. Surface and Coatings Technology, 177, 198-203. http://doi.org/10.1016/j.surfcoat.2003.09.031

Hoy, R., Van Essen, P., Kamminga, J.D., Janssen, G.C.A.M., & Ehiasarian, A. (2004). Scratch test measurements on CrNx coatings. In Cocoran, S.G., Joo, Y.-.C., Moody, N.R., & Suo, Z. (Eds.) Thin Films - Stresses and Mechanical Properties X, December 1, 2003 - December 5, 2003, Boston, MA., United states, (pp. 491-496). Materials Research Society

Hovsepian, P.E., Ehiasarian, A.P., Münz, W.D., Lewis, D.B., & Thompson, G. (2003). Performance of High-Precision Knife Blades Treated by Plasma Nitriding and PVD Coating. Proceedings, Annual Technical Conference - Society of Vacuum Coaters, 61-66.

Ehiasarian, A.P., Hovsepian, P.E., New, R., & Münz, W.D. (2003). Influence of Steering Magnetic Field on the Composition and Intensity of the Ion Flux Generated in Arc Discharges. Proceedings, Annual Technical Conference - Society of Vacuum Coaters, 437-441.

Lewis, D.B., Creasey, S.J., Zhou, Z., Forsyth, J.J., Ehiasarian, A.P., Hovsepian, P.E., ... Munz, W.D. (2003). The effect of (Ti + Al): V ratio on the structure and oxidation behaviour of TiAlN/VN nano-scale multilayer coatings. Surface and coatings technology, 177, 252-259. http://doi.org/10.1016/j.surfcoat.2003.09.041

Ehiasarian, A., Munz, W.D., Hultman, L., Helmersson, U., & Petrov, I. (2003). High power pulsed magnetron sputtered CrNx films. Surface and coatings technology, 163-16, 267-272. http://doi.org/10.1016/S0257-8972(02)00479-6

Schonjahn, C., Ehiasarian, A., Lewis, D.B., New, R., Munz, W.D., Twesten, R.D., & Petrov, I. (2001). Optimization of in situ substrate surface treatment in a cathodic arc plasma: A study by TEM and plasma diagnostics. Journal of Vacuum Science & Technology A, 19 (4), 1415-1420. http://doi.org/10.1116/1.1349726

Ehiasarian, A., Macak, K.A., Schonjahn, C., New, R., & Munz, W.D. (2001). Characterization of arc discharge plasmas in the combined steered arc/unbalanced magnetron deposition process. Annual Technical Conference of the Society of Vacuum Coaters. Proceedings, 44, 382-387.

Ehiasarian, A., New, R., Munz, W.D., Hultman, L., Helmersson, U., & Kouznetsov, V. (2001). Influence of high power densities on the composition of pulsed magnetron plasmas. Vacuum, 65 (2), 147-154. http://doi.org/10.1016/S0042-207X(01)00475-4

Book chapters

Ehiasarian, A. (2008). Chapter 2: Fundamentals and applications of HIPIMS(1st ed.). In Wei, R. (Ed.) Plasma Surface Engineering Research and its Practical Applications. (pp. 35-87). Kerala: Trivandrum: Research Signpost

Nayal, G., Ehiasarian, A.P., Macak, K.M., New, R., Munz, W.D., & Smith, I.J. (2001). A new low pressure plasma nitriding and PVD coating duplex treatment of HSS substrates. In Progress in plasma processing of materials 2001. (pp. 565-572). Begell House

Theses / Dissertations

Oniszczuk, A.W. (2017). Microstructure and cutting performance of V-C based coatings deposited by HIPIMS/UBM. (Doctoral thesis). Supervised by Ehiasarian, A. http://doi.org/10.7190/shu-thesis-00023

Morton, T.J. (2017). Development of high temperature/oxidation-resistant PVD coatings for cutting tools usingHIPIMS. (Doctoral thesis). Supervised by Ehiasarian, A. http://doi.org/10.7190/shu-thesis-00028

Loch, D.A.L. (2015). Development of an inductively coupled impulse sputtering source for coating deposition. (Doctoral thesis). Supervised by Ehiasarian, A., & Hovsepian, P.

Mandal, P. (2015). Tribological study of novel metal-doped carbon-based coatings with enhanced thermal stability. (Doctoral thesis). Supervised by Hovsepian, P., & Ehiasarian, A.

Posters

Shukla, K., Purandare, Y., Loch, D., Sugumaran, A., Kahn, I., Ehiasarian, A., & Hovsepian, P. (2020). Low-Pressure Plasma Nitriding Of Medical Grade Alloy Using HIPIMS Discharge. Presented at: I2RI Winter Poster Session, Virtual, 2020

Other activities

- External examiner for PhD theses, rapporteur to internal PhD projects
- Symposium Chair at the International Conference on Metallurgical Thin Films and Coatings (ICMCTF) organised by the American Vacuum Society (AVS), USA
- Chair of the Technical Advisory Committee at the Annual Technical Conference of the Society of Vacuum Coaters (SVC), USA
- Chair of the International Conference on HIPIMS organised jointly by Sheffield Hallam University and Fraunhofer IST
- UK representative at the Advanced Surface Engineering Division of the International Union for Vacuum Science, Technique and its Applications (IUVSTA), and Secretary of the British Vacuum Council.
- Member of the European Joint Committee on Plasma and Ion Surface Engineering, representing UK.

Postgraduate supervision

Past Students:
- Microstructure and Cutting Performance of V-C based coatings deposited by HIPIMS/UMB - A.W. Oniszczuk, 2017
- Development of High temperature/Oxidation Resistant PVD coatings for cutting tools using HIPIMS - T.J. Morton, 2017
- Development of an inductively coupled impulse sputtering source for coating deposition - D.A.L. Loch (2015).
- Tribological study of novel metal-doped carbon-based coatings with enhanced thermal stability - P. Mandal (2015).
- Development of nanostructured PVD coatings for total knee replacement joints using HIPIMS - A. A. Sugumaran (2014).
- High Temperature Resistant Nanocomposite Coatings based on (Cr, Ti)AlSiN - C. Wüstefeld, University of Freiberg, Germany, 2016.
- High power impulse magnetron sputtering (HIPIMS) : fundamental plasma studies and material synthesis - A. Hecimovic, 2009.
- CrAIN-based nanoscale multilayer coatings dedicated to wear and oxidation protection - C. Reinhard, 2007.
- Upscaling and implementation of high power impulse magnetron sputtering technology for the deposition of hard coatings. - J. Böhlmark, University of Linköping, Sweden, 2006.

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