期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 94, 期 12, 页码 4335-4339出版社
WILEY
DOI: 10.1111/j.1551-2916.2011.04695.x
关键词
-
资金
- National Natural Science Foundation of China [50872106]
- National Basic Research Program of China (973 Program) [2009CB623306]
By the conventional mixed oxide method (1-x)Bi(Mg1/2Ti1/2)O3xBaTiO3 ((1-x)BMTxBT, x similar to=similar to 0.2-1.0) ceramics were prepared. For x similar to=similar to 0.4, a bismuth-rich phase was observed beside the perovskite phase. For 0.5 similar to=similar to x similar to=similar to 0.92 ceramics, all the compositions belong to the pseudocubic phase, while the tetragonal phases were formed when x similar to=similar to 0.94. With the increase of BT content, a change from a relaxor-like behavior to a normal ferroelectric behavior was observed, while the change of Tmax is in the form of U curve. Furthermore, stable dielectric permittivity (15003000) and low losses (tan d similar to
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