%0 Journal Article
%T Influence of CaO-Y2O3 as Sintering Aid on the Microstructure and Properties of AlN Ceramics<br>CaO-Y2O3添加剂对AlN陶瓷显微结构及性能的影响
%A HUANG Xiao-Li
%A MA Qing-Zhi
%A LI Fa
%A LIU Hui-Qing
%A <br>黄小丽
%A 马庆智
%A 李发
%A 刘慧卿
%J 无机材料学报
%D 2002
%I Science Press
%X The property and microstructure of hot-pressure and normal-pressure sintered AlN ceramics doped with CaO-Y2O3 were studied in this paper. The results obtained show that the second phase in the hot-pressure sintered AlN is Y3Al5O12 and that in the normal-pressure sintered AlN is Y3Al5O12 and Ca3Y2O6. The volume fraction of the second phase and the oxygen content dissolved in the AlN lattice of hot-pressure sintered AlN ceramics are lower than that of normal-pressure sintered AlN. The hot-pressure sintered AlN ceramic has good microstructure and high thermal conductivity of 200W/m·K.
%K aluminum nitride
%K calcia-yttria
%K microstructure
%K thermal conductivity<br>添加剂
%K 氧化钙－氧化钇
%K 显微结构
%K 热导率
%K 氮化铝陶瓷
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=6165FCA7F8A1DC04&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=CAA7BAE04CB631A1&eid=4133DDB79B497495&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=4&reference_num=10