Effect of Cerium Oxide on Sinterability, Microstructure and Properties of Anorthite-based Glass/Ceramic Composites
The properties of anorthite-based glass/ceramic with different amounts of CeO2 addition had been investigated in this paper.The glass-ceramics with small amounts of CeO2 addition could be well sintered at 850~900 ℃.The water absorption was examined to evaluate the sintering behavior of the as-prepared samples.The crystalline phase,microstructure,dielectric properties,thermal expansion and bending strength were characterized by X-Ray diffraction (XRD),scanning transmission electron microscope (SEM),impedance materials analyzer,thermal expansion analyzer and flexural strength analyzer.The results showed the 1wt % CeO2-doped glass/ceramics composites sintered at 900℃ have optimum properties ofε =6.282,tanθ =2.18×10-3 at 1 MHz and a thermal expansion coefficient of 3.32×10-6 ℃-1 (25~500 ℃) matched with silicon chip (3.4×10-6 ℃-1).Obviously,CeO2 could be used at a suitable sintering aid that could improve densification of the glass/ceramic composites.
CeO2 sinterability microstructre properties anorthite-based glass/ceramic
Weixia Dong Qifu Bao Xingyong Gu Yanchun Huang
Department of material Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen,333001,P.R.China
国际会议
景德镇
英文
52-55
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）