文献类型：期刊文献

英文题名：Effects of LiF on sintering behavior and properties of CaO-B2O3-SiO2 dielectric ceramics obtained by solid-state reaction

作者：Zhu, Xiaodong[1];Kong, Fantao[1];Ma, Xinsheng[1]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ultrafine Powder, Inst Chem Engn, Shanghai 200237, Peoples R China

年份：2018

卷号：44

期号：16

起止页码：20006

外文期刊名：CERAMICS INTERNATIONAL

收录：;EI(收录号：20183205661480);WOS:【SCI-EXPANDED(收录号:WOS:000447101500123)】；

基金：This work was supported by the Fundamental Research Funds for the Central Normal Universities (No. 222201817010).

语种：英文

外文关键词：LTCC; CaO-B2O3-SiO2; Solid-state reaction; LiF; Dielectric properties

摘要：Li-added CaO-B2O3-SiO2 (CBS) dielectric microwave substrates for low temperature co-fired ceramic (LTCC) applications were prepared using a solid-state reaction, and the effect of the LiF additive on the sintering behavior, dielectric performance and mechanical properties of the product was investigated. In this presently reported work, we found that the LiF additive could effectually reduce the sintering temperature of the CBS ceramics and also substantially improved the densification, dielectric and mechanical properties of it. The experimental results showed that an addition of 3 wt% LiF to the sample sintered at 790 degrees C resulted in a main crystalline phase of beta-CaSiO3 which had excellent proprieties. These included an excellent degree of densification, epsilon(r) of 6.43, tan delta of 5.9 x 10(-4) and a volume resistivity of 8.20 x 10(11) Omega cm at 1 MHz, and flexural strength of 241 MPa.