作者：Xiangcheng Li,Boquan Zhu,Fei Zhao
作者單位：Wuhan University of Science and Technology
會議錄名稱：中國材料大會2012
出版年：2012-07-13
起頁：159-162
止頁：
總頁數：4
館藏號：
分類號：TQ175.1
語種：中文
會議名稱：中國材料大會2012
會議地點：山西太原
會議時間：2012-07-13
會議主辦者：中國材料研究學會
關鍵詞：Alumina carbon refractories;SiC whiskers;β-Si3Al3O3N5 whiskers;Catalyst
內容簡介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.
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