| 2008 №04 (02) | 2008 №04 (04) |
The Paton Welding Journal, 2008, #4, 10-15 pages
Effect of microplasma spraying parameters on structure, phase composition and texture of hydroxyapatite coatings
Yu.S. Borisov, A.L. Borisova, A.Yu. Tunik, M.V. Karpets, S.G. Vojnarovich, A.N. Kislitsa, E.K. Kuzmich-Yanchuk
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Hydroxyapatite (HA) coatings were deposited on a titanium alloy substrate by the microplasma spraying (MPS) method. The method of factorial experiment with fractional replicas was used to study relationship between the MPS parameters (current, plasma gas flow rate, spraying distance, and powder consumption) and characteristics of the HA coatings (microstructure, morphology, content of crystalline and amorphous phases, and texture). The effect of coating thickness and subsequent heat treatment of the deposited layer on phase composition and texture of the coatings was calculated. The results demonstrate that the coating formation process has some special features under the MPS conditions.
Keywords: microplasma spraying, hydroxyapatite, process parameters, properties of coatings, texture, investigations, regression analysis
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