Si3N4-BN-SiO2 Based Microwave-Transparent Materials

摘要：

　　The Si-B-O-N microwave-transparent materials were prepared by gas pressure sintering (GPS).The effect of BN and nano-SiO2 contents on the mechanical and dielectric properties of the composites was studied.The microstructural characteristic and reinforced mechanism of the composites were also investigated.The results showed that a series of Si-B-O-N wave-transparent materials could be obtained by controlling the contents of raw materials and technological parameter,The bending strength of composites is from 74.7MPa to 174.83MPa,the dielectric constant is from 3,5 to 4.2 and the tangent of loss angle is from 0.5× 10-3 to 4.5×10-3.

关键词： Microwave-Transparent Composites Silicon nitride Boron nitride Dielectric constant

作者: Zhang Weiru Wang Chonghai Li ling Liu Jian Chen Wen

作者单位: Material School,Wuhan University of Technology,Wuhan 430070,China;Shandong Research & Design Institu Shandong Research & Design Institute of Industrial Ceramics,Zibo 255031,China Material School,Wuhan University of Technology,Wuhan 430070,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: 913-916

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）