Nanocrystalline TIN Coating Prepared by Reactive Plasma Spraying

被引：0
|
作者：
Feng Wen-ran [1 ]
Zhou Hai [1 ]
Yang Ying-ge [1 ]
Zeng Dong-mei [1 ]
Lu Yi-min [1 ]
Wan Han-cheng [1 ]
机构：
[1] Beijing Inst Petrochem Technol, Dept Mat Sci & Engn, Beijing 102617, Peoples R China
来源：
VACUUM TECHNOLOGY AND SURFACE ENGINEERING - PROCEEDINGS OF THE 9TH VACUUM METALLURGY AND SURFACE ENGINEERING CONFERENCE | 2009年
关键词：
nanocrystalline; TiN coating; reactive plasma spray; MECHANICAL-BEHAVIOR; COMPOSITE COATINGS; MICROSTRUCTURE; RESISTANCE; POWDERS; METALS;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A gas-tunnel plasma spraying gun was self-designed. The titanium powders and nitrogen gas were used as the reactants to produce dense TiN coating by means of the reactive plasma spraying (RPS) technique. RPS is a promising technique that enables the fabrication of dense composite coatings with a metallic or an intermetallic matrix and finely dispersed ceramic phases. The TiN coating is of great thickness (> 500 mu m) and composed of nanocrystallities. In this respect, a new nano-materials fabrication technology was developed. The nanocrystalline TiN coating was examined using XRD, TEM and HRTEM. Results show that the coating is of well-stoichiometry, which is composed of TiN crystals of about 50-70nm in diameter, as well as the amorphous TiN phase. The nanocrystallities are separated by small-angle (about 7) grain boundaries.
引用
收藏
页码：201 / 205
页数：5
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