柱状莫来石弥散强化Y-TZP复合材料高温性能研究  

High Temperature Properties of Y-TZP Composites Reinforced by Rodlike Mullite

作　　者：韩敏芳[1] 李伯涛[1] 张向阳[1] 

机构地区：[1]中国矿业大学北京研究生部,北京100083

出　　处：《材料科学与工艺》1998年第1期106-112,共7页Materials Science and Technology

摘　　要：采用化学共沉淀法制备Y－TZP超细粉料，通过适宜的无压烧结工艺烧成莫来石Y－TZP复合材料，探索了不同的莫来石含量对Y－TZP材料的常温及高温强度的影响，并对柱状莫来石弥散强化Y－TZP复合材料的机理做了初步讨论。Mullite/Y-TZP(Yttria-doped Tetragonal Zirconia Polycrystal) composites, made from ultrafine powder prepared by chemical coprecipitation, were sintered in air. The fracture strength of Y-TZP composites at room temperature and 1000, affected by different percent of mullite,were studied. At the same time, the mechanism of rod-like mullite grains dispersing and reinforcing Y-TZP composites was discussed in the paper.

关 键 词：TZP 莫来石 高温强度 钇基 氧化锆 复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程]