Structure and Microwave Properties of NaxCa1-xAl2-xSi2+xO8 (0<x<0.67) Plagioclase Feldspar

摘要：

　　The plagioclase feldspar (NaxCa1-xAl2-xSi2+xO8,0<x<0.67),has been synthesized under sub-solidus conditions using the solid-reaction technique.X-ray diffraction (XRD) was used to study the temperature dependency of the phase and structure transformations.Scanning electron microscopy (SEM) was performed to demonstrate the micro-structure of the sintered samples.The dielectric properties in microwave (MW) frequency region,including the dielectric constant,Qxf and the temperature coefficient were measured by the microwave network analyzer.The results revealed the value of Qxf decreases when 0≤x≤0.2,while increases when 0.2≤x≤0.67.The lowest value of Qxf was at x =0.2.

关键词： Microwave Dielectric Plagioclase Feldspar

作者: Wei Li Zhenxing Yue Fei Zhao Jing Pei Longtu Li

作者单位: State Key Laboratory of New Ceramics and Fine Processing,Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,P.R.China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 185-187

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）