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Effect of CuO Addition on the Microstructure and Electric Properties of Low‐Temperature Sintered 0.25 PMN –0.40 PT –0.35 PZ Ceramics
Author(s) -
Wang Li,
Mao Chaoliang,
Wang Genshui,
Du Gang,
Liang Ruihong,
Dong Xianlin
Publication year - 2013
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.12026
Subject(s) - sintering , microstructure , materials science , ceramic , phase (matter) , analytical chemistry (journal) , composite material , chemistry , chromatography , organic chemistry
Low‐temperature sintering of 0.25 PMN –0.40 PT –0.35 PZ ceramics was investigated using CuO as a sintering aid. Effect of CuO on the sinterability, microstructure, and electric properties of 0.25 PMN –0.40 PT –0.35 PZ system was systematically studied. The CuO addition significantly reduced the sintering temperature of 0.25 PMN –0.40 PT –0.35 PZ from 1260°C to 950°C. SEM results indicated that a dense microstructure without any second phase was obtained when the amount of CuO was 0.25 wt%, which gave rise to high values of d 33 = 532 pC /N and k p = 58.4%. A large field‐induced longitudinal strain ~2.28% (at 30 kV/cm) can also be obtained for 0.25 wt% CuO ‐added specimens, which shows a great promise for multilayer actuator applications.