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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 3    No. 3    September 1993

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INFLUENCES OF VACUUM-BAKING TREATMENT TO SiC PARTICULATES ON PREPARING AI-MATRIX COMPOSITE
Ding Wenjiang ; Xu Xiaoping;  Deng Zuwei

Shanghai Jiaotong University; Shanghai 200030; China

Abstract:A study was made of influences of vacuum-baking treatment to SiC particulates on preparing cast Al-martix composite. By means of quadripole mass analyser(QMA), gases absorbed on the surface of SiC particulate have been investigated, it is found that gases and pollutants absorbed on the surface prohibit SiC particulates from uniformly dispersing in the alloy melt.

 

Key words: composite material SiC particulate surface treatment absorption vacuum-baking

ISSN 1672-7029
CN 43-1423/U

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