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摘要:
A new lead-free binary solid solution (1-x)(Bi1/2Na1/2)TiO3-x -Ba(Zn1/3Nb2/3)O-3[(1-x) BNT-xBZN] was fabricated by a two-step solid oxide reaction route. The microstructure, electrical properties and fieldinduced strain as a function of the BZN content were investigated systematically. The results showed that, as BZN added, the solid solution undergone a transformation from rhombohedral to pseudocubic phases, and a morphotropic phase boundary occurred around x = 0.05. Meanwhile, the ergodic PNRs emerged at x = 0.05 and the completely ergodic state occurred for x >= 0.06. Especially, for the x = 0.055 sample, a large field-induced strain of 0.40% under an external electric field of 8 kV/mm was obtained due to the coexistence of nonergodic and ergodic states. (C) 2017 Elsevier B.V. All rights reserved.
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来源 :
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN: 0925-8388
年份: 2018
卷: 731
页码: 631-635
6 . 2 0 0
JCR@2022
ESI学科: MATERIALS SCIENCE;
ESI高被引阀值:260
JCR分区:1