AlN-Y_2O_3陶瓷注射成形研究  

Injection molding of AlN ceramics

作　　者：林健凉[1] 曲选辉[1] 黄栋生[1] 李益民[1] 邱光汉[1] 李笃信[1] 

机构地区：[1]粉末冶金国家重点实验室,长沙410083

出　　处：《粉末冶金材料科学与工程》2000年第2期106-112,共7页Materials Science and Engineering of Powder Metallurgy

基　　金：国家重点基础研究发展规划项目

摘　　要：研究了添加5％(质量分数,下同)和7％Y_2O_3的AlN陶瓷的注射成形工艺,制备了热导率达162.5 W/(m·K)的AlN陶瓷,利用XRD,SEM,XPS等方法初步分析了注射成形中Y_2O_3的添加量、烧结工艺与第二相组成的关系,并在此基础上分析了晶界第二相对AlN材料热导率的影响,结果表明,注射成形AlN陶瓷的晶界第二相对AlN的热导性能有显著的影响。Y_2O_3 doped aluminum nitride ceramic with room temperature thermal conductivity varying from 90～162.5 W/(m·K) were produced by powder injection molding(PIM). The effects of the amount of additives and sintering condition on the composition of second phase, and the thermal properties were studied and discussed in some detail. Experiment results show that the second phase composition, distribution and the oxygen content have strictly effect on the thermal properties.

关 键 词：陶瓷粉末注射成形(CIM) 氮化铝(AlN) 晶界第二相 

分 类 号：TQ174[化学工程—陶瓷工业]