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Effects of BiVO4 addition on the sintering behavior, crystal structure, microstructure and microwave dielectric properties of CaLa4Ti4O15 ceramics were investigated. When BiVO4 addition is below 3 %, the sintering temperature of CaLa4Ti4O15 ceramics is reduced from 1,550 °C to about 1,400 °C. And only phase CaLa4Ti4O15 is observed in the CaLa4Ti4O15 ceramics. However, the secondary phase CaLa4Ti5O17 appears when BiVO4 addition reached 3 %. It is important that a small amount of BiVO4 addition can not only lower the sintering temperature but also improve the microwave dielectric properties of CaLa4Ti4O15 ceramics. The CaLa4Ti4O15 ceramics with 1.0 % BiVO4 addition, which is sintered at 1,425 °C, exhibits excellent microwave dielectric properties of Ε = 44.3, Qf = 51,377 GHz, τf = −9.0 ppm/°C. The variation of microwave dielectric properties had been also discussed with the structure evolution. © 2014, Springer Science+Business Media New York.
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Journal of Materials Science: Materials in Electronics
ISSN: 0957-4522
Year: 2015
Issue: 4
Volume: 26
Page: 2033-2038
1 . 7 9 8
JCR@2015
2 . 8 0 0
JCR@2023
ESI HC Threshold:335
JCR Journal Grade:2
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 9
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
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