AlN-Y_2O_3液相烧结碳化硅陶瓷Liquid phase sintered silicon carbide with AlN-Y_2O_3
陈宇红;韩非;江涌;韩凤兰;吴澜尔;
摘要(Abstract)：
采用无压烧结,以AlN与Y2O3的摩尔分数为60%∶40%作为烧结助剂进行碳化硅液相烧结,得到致密的烧结体。研究不同添加剂含量和不同保护气氛对烧结工艺的影响,并对烧结体的显微形貌和相进行分析。结果表明,高烧结助剂含量可在较低温度下实现致密化,但高温下液相挥发导致密度降低。与氩气作为保护气氛相比,氮气可抑制氮化铝的分解反应,有利于烧结。烧结体的晶粒均匀、细小,第二相均匀分布。烧结体的主相为6HSiC,并有氧氮化物的生成。
关键词(KeyWords)： 碳化硅;氮化铝;液相烧结;烧结气氛
基金项目(Foundation): 国家“863”计划项目(2002AA332110);; 宁夏国际合作项目(NXIC-2006-004)
作者(Author): 陈宇红;韩非;江涌;韩凤兰;吴澜尔;
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DOI:
参考文献(References)：
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