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A lead-free ferroelectric material, (K(0.5)B(3)i(0.5))TiO3 (KBT), was prepared by a sol-gel process. Thermal analysis and X-ray diffraction showed that perovskite KBT powders with a grain size of 100-200 nm were obtained by calcining dried gels above 700 degrees C. When the calcining temperature was lower than 650 degrees C, only the Bi2Ti2O7 phase was found in the X-ray diffraction patterns. Moreover, KBT ferroelectric ceramics was fabricated by traditional sintering of as-prepared KBT powders. The KBT ceramics sintered at 1050 degrees C showed a high density (91.2% of theoretic density) and low dielectric loss, better than that prepared by a solid-state reaction method. The temperature dependence of dielectric permittivity of KBT ceramics showed a Curie temperature at 385 degrees C. (c) 2005 Elsevier B.V. All rights reserved.
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MATERIALS CHEMISTRY AND PHYSICS
ISSN： 0254-0584
Year： 2006
Issue： 2-3
Volume： 99
Page： 329-332
4 . 6 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
JCR Journal Grade：2
Cited Count：
WoS CC Cited Count： 32
SCOPUS Cited Count： 36
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 11
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