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- Title
Sintering behaviors and microwave dielectric properties of Ti-modified BaTiNbO ceramics with 35BaO-35ZnO-30BO addition.
- Authors
Huang, X.; Wang, W. J.; Lin, J.; Tang, D. P.; Wu, X.; Zheng, X. H.
- Abstract
Effect of 35BaO-35ZnO-30BO (BZB) addition on the sintering behaviors, phase evolution and microwave dielectric properties of Ti-modified BaTiNbO (BaTiNbO, BTNO) ceramics had been investigated. BZB addition effectively reduced the sintering temperature of BTNO from 1250 °C to about 900 °C. With increasing BZB addition, the crystal phase of the present ceramics changed from single phase BaTiNbO to mixing phases of BaTiNbO and BaTiNbO. And the major phase gradually became from BaTiNbO to BaTiNbO. Dielectric constant and temperature coefficient increased with the rising of BZB addition. But the Qf value gradually declined from 28000 to about 6000 GHz. The BTNO ceramics with 15% BZB addition exhibited excellent microwave dielectric properties as following: ε = 46.3, Qf = 5887 GHz and τ = 35.5 ppm/°C, which was potential of candidate materials for LTCC application. And the variation of microwave dielectric properties had been also discussed with the phase and microstructure evolution.
- Subjects
CERAMICS; DIELECTRIC properties; SINTERING; LOW Temperature Cofired Ceramic technology; MICROSTRUCTURE
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 2, p993
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-017-7997-9