TiN-TiB2 composite coatings reactively produced by electrothermally exploded powder spray

被引：17

作者：

Tamura, H ^{[1
]}

Wei, FG ^{[1
]}

Kodama, T ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Mat Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan

来源：

JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2002年 / 11卷 / 01期

关键词：

composite coating; electrothermal explosion; metal saturation; reactive thermal spray; titanium boride; titanium nitride;

D O I：

10.1361/105996302770349032

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Composite coatings composed of titanium nitride, TiN, and diboride, TiB2, were reactively produced by the electrothermally exploded powder spray technique, in which feedstock powder was prepared from titanium and boron nitride particles. The microstructure of the coating was composed of titanium-ceramic particles the size of which were on the order of several nanometers to a few hundred nanometers. Such reactive thermal spraying brought base-metal saturation into a coating layer at the early stages of coating formation. The ceramic composite spray using feedstock of TiN and TiB2 particles preferentially brought a new phase of cubic titanium boronitride together with TIN and TiB2 into a coating. On comparing such a coating to one produced by the conventional method, the reactive thermal spray coating was richer in TiN and Till, due to the excess nitrogen in the feedstock.

引用

页码：100 / 106

页数：7

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