A novel approach to synthesize SiC particles by in situ reaction in Al-Si-C alloys

被引：41

作者：

Du, Xiaofan ^{[1
]}

Gao, Tong ^{[1
]}

Li, Dakui ^{[1
]}

Wu, Yuying ^{[1
]}

Liu, Xiangfa ^{[1
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 588卷

基金：

中国国家自然科学基金;

关键词：

SiC particles; Liquid-solid reaction; Microstructure; Al-Si-C alloy; MECHANICAL-PROPERTIES; COMPOSITES; ALUMINUM;

D O I：

10.1016/j.jallcom.2013.11.099

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this article, a novel approach to synthesize SiC particles utilizing in situ liquid-solid reaction in Al-Si-C alloys was put forward. Unlike the traditional methods, the liquid-solid reaction method for in situ synthesis of SiC is direct, easy and can be used for mass production. The experimental results show that the synthesis temperature for SiC particles can be as low as 750 degrees C. The size of in situ synthesized SiC particles increases from 0.2 mu m to 10 mu m as the reaction temperature increases. Furthermore, it was found that SiC particles are in situ synthesized through gradual-reaction mechanism, and Al4C3 is the intermediate phase which is much easier to be synthesized in Al-Si-C system. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：374 / 377

页数：4

共 25 条

[1] Abrasive wear behavior and mechanical properties of Al-Si/SiC composites [J].