The synthesis of titanium nitride whiskers on the surface of graphite by molten salt media

被引：55
作者：
Ding, Jun [1 ]
Deng, Chengji [1 ]
Yuan, Wenjie [1 ]
Zhu, Hongxi [1 ]
Li, Jun [1 ]
机构：
[1] Wuhan Univ Sci & Technol, State Key Lab Breeding Base Refractories & Ceram, Wuhan 430081, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷 / 03期
关键词：
Titanium nitride whiskers; Molten salt; VLS mechanism; Oxidation resistance; CHEMICAL-VAPOR-DEPOSITION; GROWTH-MECHANISM; COATED GRAPHITE; GAN NANOWIRES; TIN COATINGS; VLS GROWTH; SOL-GEL; CARBIDE; TEMPERATURE;
D O I：
10.1016/j.ceramint.2012.09.077
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel method for synthesis of titanium nitride whiskers on the surface of graphite in NaF NaCl media at 1100-1400 degrees C for 3 h in Ar atmosphere was investigated. The formation of TiN whiskers with the diameter of 500-600 nm and variable lengths and morphologies occurs onto graphite by a vapor liquid solid (VLS) mechanism. The specific surface area of graphite increases due to the growth of titanium nitride with various morphologies. The excellent oxidation resistance of surface modified graphite could be attributed to growth of TiN whiskers on the surface of graphite, which act as anti-oxidant and prevent the oxidation of graphite substrate. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：2995 / 3000
页数：6
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