Uniform design method for optimization of process parameters of plasma sprayed TiN coatings

被引:77
作者
Li, JF
Liao, H
Normand, B [1 ]
Cordier, C
Maurin, G
Foct, J
Coddet, C
机构
[1] Univ Technol Belfort Montbeliard, LERMPS, F-90010 Belfort, France
[2] Univ Paris 06, CNRS, LPLE, UPR 15, F-75252 Paris 05, France
[3] Univ Sci & Tech Lille Flandres Artois, CNRS, LMPGM, UMR 8517, F-59655 Villeneuve Dascq, France
关键词
plasma processing and deposition; titanium nitride; coatings; statistical analysis;
D O I
10.1016/S0257-8972(03)00019-7
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Titanium nitride (TiN) coatings deposited by PVD and CVD have been increasingly used in industry for diverse applications. In this work, a plasma spray process of TiN deposition was investigated using a uniform design method. The experimental results of deposition efficiency, porosity, oxide content, microhardness and fracture toughness were regressed as the third order polynomial equations of the investigated process parameters. The relationships between the deposition efficiency, porosity, oxide content, microhardness and fracture toughness were examined in terms of coefficient of correlation. It was found that there were significant linear relationships between the deposition efficiency, oxide content, microhardness and fracture toughness. On the contrary, the linear relationships between them and the porosity were rather weak. Within the range of the uniform design of experiments, the deposition efficiency, microhardness and fracture toughness all increased, and the oxide content decreased while decreasing the argon flow rate and increasing the hydrogen flow rate. Using atomized liquid CO, for cooling the substrate during plasma spraying, it is possible to further improve the quality of the TiN coating. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:1 / 13
页数:13
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