Abstract：SiCp/Al-Si composite with CeO2 addition was fabricated by powder metallurgy. The effect of CeO2 content on microstructure of the composite was investigated. The effects of CeO2 on the Si precipitation mechanism during sintering was also discussed. The results show that CeO2 can effectively refine the average size of precipitated silicon and increase its quantity. The optimum mass percent of CeO2 is 0.6%. Higher or lower CeO2 content will reduce the refining effects. As the heterogeneous nucleation substrate of precipitated silicon， CeO2 can improve the silicon nucleation rate， thus refine the precipitated silicon size and increase its precipitation quantity.
收稿日期: 2015-03-24
出版日期: 2016-02-01
通讯作者:
王荣旗
E-mail: 774002367@qq.com
引用本文:
王荣旗，谢敬佩，吴文杰，王爱琴. CeO2对SiCp/Al-Si复合材料中析出Si影响机理的研究[J]. , 2016, 26(01): 32-35.
WANG Rong-qi，XIE Jing-pei，WU Wen-jie，WANG Ai-qin. Effects of CeO2 on the Si precipitation mechanism of SiCp/Al-Si composite. , 2016, 26(01): 32-35.
2016, Vol. 26 
