添加Y_2O_3的AlN陶瓷注射成形研究  

Injection Molding of Y_20_3- Doped AIN Ceramics

作　　者：林健凉[1] 曲选辉[1] 黄栋生[1] 秦明礼[1] 李笃信[1] 

机构地区：[1]中南大学,湖南长沙410083

出　　处：《稀有金属材料与工程》2001年第3期212-215,共4页Rare Metal Materials and Engineering

基　　金：国家863计划(715-090-090);国家973计划(G2000067203)资助项目

摘　　要：研究了添加５％和７％Ｙ２Ｏ３的ＡＩＮ陶瓷的注射成形工艺； 制备了热导率达１６２．５Ｗ／ｍ·Ｋ的ＡＩＮ陶瓷。利用ＸＲＤ，ＳＥＭ，ＸＰＳ等方法分析了注射成形中Ｙ２Ｏ３的添加量、烧结工艺和第２相组成的关系，并发现注射成形ＡＩＮ陶瓷的晶界第２相对ＡＩＮ陶瓷的热导性能有显著的影响。Y203 -doped aluminum nitride(AIN) ceramic with thermal conductivity varying from 90 W/m K-162.5W/mo K at room temperature 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 are studied and discussed in detail. The experimental results show that the composition, distribution and oxygen content of the second phase have a great effect on the thermal conductivity.

关 键 词：陶瓷粉末注射成形 氮化铝 晶界第2相 热性能 

分 类 号：TQ174[化学工程—陶瓷工业]