Transactions of the Materials Research Society of Japan
Online ISSN : 2188-1650
Print ISSN : 1382-3469
ISSN-L : 1382-3469
Regular Papers
Variations of Morphotropic Phase Boundary and Dielectric Properties with Bi Deficiency on Ba-substituted Na0.5Bi0.5TiO3
Keishiro YoshidaHirotaka FujimoriTomonori Yamatoh
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2021 年 46 巻 1 号 p. 49-52

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We synthesized barium-substituted sodium bismuth titanates, (Na0.5Bi0.5-z)1-xBaxTiO3-d, without a Bi deficiency (z = 0) and with a Bi deficiency of z = 0.03 by the polymerizable complex method while preventing sodium and bismuth from evaporating. The maximum dielectric constant on the samples without a Bi deficiency (z = 0) was located around a Ba content of x = 0.10. On the other hand, the samples with a Bi deficiency of z = 0.03 indicated the maximum value of dielectric constant at approximately a Ba content of x = 0.06. These Ba contents were consistent with the morphotropic phase boundary (MPB) on each sample with the different Bi deficiencies.

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