Low Temperature Sintered CaTiSiO5-CaTiO3 Dielectric Ceramics Doped by 2ZnO-B2O3

摘要：

　　The dielectric ceramics of CaTiSiO5-CaTiO3 with ZnO and B2O3 as additives were sintered at 950℃.Of the ceramics with a small quantity of 2ZnO-B2O3 as the additive,the density is nearly the same as the one reported,εr=83 ~ 99,tgδ < 7×10-4,αε=(-100~+100) ppm/℃.The crystal phases and microstructures are analyzed by X-ray diffraction and scanning electron microscope.It is found that the sintered ceramics is of biphase,comprising monoclinic CaTiSiO5 and orthorhombic CaTiO3,and the grains are mostly the small circular ones,having diameters of 1~2μm.By adjusting the composing of the ceramic,a high frequency dielectric ceramic CaTiSiO5-CaTiO3,of which αε=(-50~+50) ppm/℃ was attained.

关键词： CaTiSiO5-CaTiSiO3 dielectric ceramics Low temperature sintering

作者: Chen Qiao Lin Xuping Deng Changsheng Yue Zhenxing

作者单位: Tsinghua University,Beijing 100084,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: 748-750

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）