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- Title
Effect of Sb substitution on the dielectric properties of BaLiTaTiO ceramics.
- Authors
Liao, Wei; Fang, Liang; Xiang, Fei; Su, CongXue; Zhang, Hui
- Abstract
The effects of substitution Sb for Ta on the sintering behavior and the microwave dielectric properties of BaLiTaTiO ceramic were studied. Single-phase polycrystalline microwave dielectric ceramics BaLiTaSbTiO( x = 0-3) were prepared by the solid-state reaction method. The sintering behavior and microwave dielectric properties of BaLiTaSbTiO ceramics were found to be affected by Sb substitution for Ta. With the increasing Sb content, the densified (>95 % of their theoretical X-ray density) temperatures of BaLiTaSbTiO ceramics increased from 1,160 to 1,220 °C, the dielectric constant ( ε) decreased from 55.5 to 27, and the Q × f value enhanced significantly from 18,480 to 29,400 GHz, with τ improving from 70 to −25 ppm/°C. A near zero τ value could be obtained by carefully adjusting the Sb content.
- Subjects
BARIUM ferrite; ANTIMONY; DIELECTRIC strength; PIEZOELECTRIC ceramics; SINTERING
- Publication
Journal of Materials Science: Materials in Electronics, 2013, Vol 24, Issue 1, p272
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-012-0737-2