氧化铝／碳化钛复合材料的无压烧结  

Pressureless Sintering of Alumina-Titanium Carbide Composites

作　　者：高纪明[1] 陈松年[1] 肖汉宁[1] 唐绍裘[1] 杜海清[1] 

机构地区：[1]湖南大学化学化工系

出　　处：《湖南大学学报（自然科学版）》1996年第4期46-50,共5页Journal of Hunan University:Natural Sciences

基　　金：国家教委博士点基金

摘　　要：以γ－Ａｌ２Ｏ３、活性碳、刚玉砂和石墨粉为埋粉，在由液ＮＨ３分解产生的Ｎ２和Ｈ２气氛中，采用无压烧结方法制备了氧化铝／碳化钛复合材料．研究了埋粉成分、升温速度等对烧结性能的影响．实验结果表明，无压烧结产品在显微结构和机械性能上与热压产品比较没有明显的差异．Al2O3-TiC composites were fabricated by pressureless sintering using γ-Al2O3, active carbon, corundum powder and graphite powder as embedding powders in N2 and H2 from decomposed liquid NH3 The effect of the embedding powder compositions and the heating rate on sintering was investigated. The results indicated that there was no observable difference in microstructures and mechanical properties between the pressureless-sintered and the hot--pressed parts.

关 键 词：氧化铝 碳化钛 复合材料 无压烧结 陶瓷 

分 类 号：TQ174.758[化学工程—陶瓷工业]