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

被引：33

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

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 16期

关键词：

LTCC; CaO-B2O3-SiO2; Solid-state reaction; LiF; Dielectric properties; SPECTROSCOPY; SYSTEM;

D O I：

10.1016/j.ceramint.2018.07.269

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

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.

引用

页码：20006 / 20011

页数：6

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