期刊
CERAMICS INTERNATIONAL
卷 40, 期 5, 页码 6899-6902出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2013.12.010
关键词
Microstructure; Dielectric properties; Densification
资金
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT), [IRT1146]
The effect of WO3 addition on the phase formation, the microstructures and the microwave dielectric properties of 1 wt% ZnO doped 0.95MgTiO(3)-0.05CaTiO(3) ceramics system were investigated. Formation of second phase MgTi2O5 could be effectively restrained through the addition of WO3, but should be in right amount. WO3 as additives could not only effectively lower the sintering temperature of the ceramics to 1310 degrees C, but also promote the densification. A dielectric constant epsilon(r) of 20.02, a Q x f value of 62,000 (at 7 GHz), and a tau(f) value of -5.1 ppm/degrees C were obtained for 1 wt% ZnO doped 0.95MgTiO(3)-0.05CaTiO(3) ceramics with 0.5 wt% WO3 addition sintered at 1310 degrees C. (c) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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