Title :
Protective coatings produced by vacuum arc deposition
Author :
Rvbnikov, A.I. ; Kouznetsov, V.G. ; Leontiev, S.A. ; Tchizhik, A.A. ; Osyka, A.S.
Author_Institution :
Polzunov Boiler & Turbine Inst., St. Petersburg, Russia
Abstract :
The deposition features and properties of oxide coatings produced by vacuum-arc process have been investigated. A possibility to control of the coating material structure by means of coating process parameters is shown by the example of titanium oxide. The thermal protection coatings of ZrO2+8%Y2O3 were deposited on moving blades of the electric power gas turbine for testing in field conditions. The main process parameters of the oxide deposition formation which effect greatly its characteristics are the pressure of the reaction gas, the back bias voltage on the back base, its temperature and the cathode temperature
Keywords :
cathodes; corrosion protective coatings; gas turbines; titanium compounds; vacuum arcs; vacuum deposited coatings; vacuum deposition; yttrium compounds; zirconium compounds; TiO; ZrO2+8%Y2O3; ZrO2-Y2O3; back base; back bias voltage; cathode temperature; coating material structure control; gas turbine blades; oxide deposition formation; protective coatings; reaction gas pressure; thermal protection coatings; titanium oxide; vacuum arc deposition; Blades; Cathodes; Coatings; Protection; Temperature; Testing; Titanium; Turbines; Vacuum arcs; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on
Conference_Location :
Berkeley, CA
Print_ISBN :
0-7803-2906-6
DOI :
10.1109/DEIV.1996.545498
