TEHNOPROF - Excellence Research Center for Advanced Surface Processing by Plasma and Vacuum Technologies

 

Coordinator: National Institute for RD in Optoelectronics INOE 2000

Funding agency:  RELANSIN, S9, Project no. 1341 /15.06.2001.

Project Leader: Dr. Viorel Braic

Team

Dr. Mihai Balaceanu

Dr. Gabriela Pavelescu

Eng. Alina Vladescu

Eng. Adrian Emil Kiss

Eng. Cosmin Cotrut-Mihai

MSc. Ionut Vasile

MSc. Mihaela Enache

 

Infrastructure development with the goal of maximizing the potential for:

�  Basic research:

v  investigations of the plasmas produced during thin-film deposition PVD processes;

v  studies of deposition transient plasmas with enhanced spatio-temporal resolution;

v  research on the kinetics of ion bombardment-assisted thin film growth;

v  studies on nanocomposites and heterostructures in the development of nanostructured thin films.

�  Applied research in optics, optoelectronics, microelectronics, medicine, quality improvement of various categories of industrial goods:

v  High-rate deposition of coatings by cathodic arc and reactive cathodic arc.

v  DC and pulsed reactive magnetron sputtering for the deposition of coatings with:

o   superior tribological properties;

o   increased resistance to corrosion in a range of unfavorable conditions;

o   specific reflectivity and absorption characteristics of materials at various wavelengths.

v  Vacuum thermal evaporation of:

o   thin films with low roughness;

o   oxides based thin films for structural colors.

Professor Gheorghe Popa, the state secretary for research, visiting the TEHNOPROF Center

with a minister delegate, and Dr. V. Braic.

 

Published papers in ISI journals

  1. Influence of the reactive gases nature on Ti(C,N) hard coatings in cathodic vacuum arc deposition, Braic, V; Braic, M; Balaceanu, M; Pavelescu, G, ISDEIV: XXth International Symposium on Discharges and Electrical Insulation in Vacuum, Proceedings, 2002, Vol 20, pp. 166-169
  2. Properties of titanium based hard coatings deposited by the cathodic arc method I. Microchemical and microstructural characteristics, Balaceanu, M; Braic, M; Macovei, D; Genet, MJ; Manea, A; Pantelica, D; Braic, V; Negoita, F, J.Optoelectron.Adv.Mater., 2002, Vol. 4/1, pp. 107-114
  3. Properties of titanium based hard coatings deposited by the cathodic arc method II. Mechanical, anticorrosive and wear resistance characteristics, Braic, V ; Balaceanu, M; Tudor, I; Popescu, A; Braic, M ; Pavelescu, G; Zamfir, R, J.Optoelectron.Adv.Mater., 2002. Vol. 4/1, pp. 115-120
  4. Plasma deposition of alternate TiN/ZrN multilayer hard coatings, Braic, M; Braic, V; Balaceanu, M; Pavelescu, G; Vladescu, A, J.Optoelectron.Adv.Mater., 2003, Vol. 5/5, pp. 1399-1404
  5. Corrosion resistance of TiN coated 316L stainless steel in artificial physiological solution, Braic, M; Zamfir, S; Balaceanu, M; Braic, V; Pavelescu, G; Zamfir, A; Vladescu, A, J. Optoelectron .Adv. Mater.,2003, Vol.5 /2, pp. 503-510
  6. Optical diagnostics of the arc plasma using fast intensified CCD-spectrograph system, Pavelescu, G; Guillot, S; Braic, M; Hong, D; Pavelescu, D; Fleurier, C; Braic, V; Gherendi, F; Dumitrescu, G; Anghelita, P; Bauchire, JM., ROMOPTO 2003: SEVENTH CONFERENCE ON OPTICS, Vol. 5581, pp. 767-774
  7. Investigation of the rotating arc plasma generated in transverse magnetic field (TMF) contacts of vacuum interrupter, Pavelescu, D; Braic, V; Gherendi, F; Braic, M; Nitu, C; Balaceanu, M; Dumitrescu, G; Pavelescu, G; Nitu, S; Anghelita, P, ISDEIV: XXITH International Symposium on Discharges and Electrical Insulation in a Vacuum, 2004, PROCEEDINGS Vol. 21, pp. 156-159

8.       Microchemical and mechanical characteristics of arc plasma deposited TiAlN and TiN/TiAlN coatings, M.Braic, V.Braic, M.Balaceanu, G.Pavelescu, A.Vladescu, I.Tudor, A.Popescu, Z.Borsos, C.Logafatu, CC.Negrila, J.Optoelectron.Adv.Mater. vol.7, nr.2 (2005), pp.671-676,� ISSN 1454-4164

9.       Synthesis and characterization of TiN, TiAlN AND TiN/TiAlN biocompatible coatings, M.Braic, M.Balaceanu, V.Braic, A.Vladescu, G.Pavelescu, M.Albulescu, Surface & Coatings Technology, vol. 200/1-4 (2005), pp.1014-1017

  1. Properties of arc plasma deposited TiCN/ZrCN superlattices coatings, M.Balaceanu, M.Braic, V.Braic, G.Pavelescu, Surface & Coatings Technology, vol. 200/1-4 (2005), pp.1084-1087
  2. Surface chemistry of plasma deposited ZrC hard coatings, M.Balaceanu, M.Braic, V.Braic, C.C.Negrila, J.Optoelectron.Adv.Mater. vol.7, nr.5 (2005), pp.2557-2560
  3. Corrosion resistance of the TiN, TiAlN and TiN/TiAlN nanostructured hard coatings, Vladescu, A; Cotrut, CM; Kiss, A; Balaceanu, M; Braic, V; Zamfir, S; Braic, M, University Politehnica of Bucharest Scientific Bulletin Series B-Chemistry and Materials Science, Vol. 68.4 pp. 57-64
  4. TiN/ZrN heterostructures deposition and characterization, Braic, M; Balaceanu, M; Vladescu, A; Kiss, A; Braic, V; Purice, A; Dinescu, G; Scarisoreanu, N; Stokker-Cheregi, F; Moldovan, A; Birjega, R; Dinescu, M, Surface & Coating Technology, 2006, Vol. 200/ 22-23, pp. 6505-6510
  5. Effects of Ti- and Zr-based interlayer coatings on hot-filament chemical vapor deposition of diamond on high-speed steel, Polini, R; Mantini, FP; Braic, M; Amar, M; Ahmed, W; Taylor, H, Thin Solid Films, 2006, Vol. 494/ 1-2, pp. 116-122