AlN陶瓷低温烧结中的液相迁移  

Migration of Liquid Phases in Low-temperature Sintering of AlN

作　　者：乔梁[1] 周和平[1] 刘耀诚[1] 汪雨荻[1] 

机构地区：[1]清华大学材料系新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《材料工程》2000年第10期7-10,共4页Journal of Materials Engineering

摘　　要：用 XRF和 SEM/EDAX对 (YCa) F3助烧 Al N陶瓷烧结过程中的液相迁移规律进行了研究 ,以 Y、Ca为液相的“示踪元素”,得到烧结不同阶段液相分布的信息。结果表明 ,液相在坯体致密化和 Al N晶粒生长过程的驱动下向坯体表面迁移。SEM/EDAX and XRF were used to study the migration of liquid phases in the low temperature sintering of AlN with (YCa)F 3 as additive Y and Ca were considered as tracer element, which indicated the distribution of liquid phases during the sintering The results show that the liquid phases, drived by the densification of green bodies and the growth of grains, can be migrated towards the surface of the specimen

关 键 词：氮化铝陶瓷 显微结构 液相迁移 低温烧结 

分 类 号：TQ174.758[化学工程—陶瓷工业]