In-situ Synthesis of SiC and β-Si3Al3O3N5 Whiskers in Alumina Carbon Based Materials

摘要：

　　SiC whiskers are the common reinforced phases in alumina carbon refractories.In this paper,the effect of transition metal catalyst on the evolution of matrix phase and the formation of β- Si3Al3O3N5 whiskers were studied.It was found that the whiskers of both SiC and β- Si3Al3O3N5 in alumina carbon materials with the catalyst in reducing atmosphere were generated.The existence of catalyst can promote the nitriding process of Si metal and facilitate the formation of β- Si3Al3O3N5 whiskers.The growth mechanism of both SiC and β-Si3Al3O3N5 whiskers agrees with the vapor-liquid-solid model.

关键词： Alumina carbon refractories SiC whiskers β-Si3Al3O3N5 whiskers Catalyst

作者: Xiangcheng Li Boquan Zhu Fei Zhao

作者单位: The State Key Laboratory Cultivation Base of Refractories and Ceramics, Wuhan University of Science and Technology, Wuhan 430081, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 663-666

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）