Synthesis of TiC/aluminum composite by reactive infiltration process

被引：6
|
作者：
Omura, N [1 ]
Kobashi, M [1 ]
Choh, T [1 ]
Kanetake, N [1 ]
机构：
[1] Nagoya Univ, Grad Sch Engn, Dept Mat Proc Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源：
ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3 | 2002年 / 396-4卷
关键词：
self-propagating high-temperature synthesis(SHS); titanium carbide(TiC); spontaneous infiltration; compressive test; MMC;
D O I：
10.4028/www.scientific.net/MSF.396-402.271
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new process, reactive infiltration, was investigated to synthesize TiC/aluminum composites, in which a combustion reaction and an infiltration of molten metal were combined. Addition of an aluminum powder in the (Ti+C) powder blend can lower the processing temperature to around melting point of aluminum. The optimum aluminum addition ratio in the powder blend was in between 0.8 and 1.2 (Al/Ti molar ratio) to synthesize successfully TiC by the combustion reaction. The in situ synthesized TiC reinforcement was very fine spherical particles with a diameter of 2-5mum. The compressive fracture strength of the composite was about 600MPa at room temperature, and it was not remarkably decreased even at 423K and 573K.
引用
收藏
页码：271 / 276
页数：6
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