Grain Size Effects on Piezoelectric Properties and Domain Structure of   BaTiO   3  Ceramics Prepared by Two‐Step Sintering | Zendy

Huan Yu | Zendy; Wang Xiaohui | Zendy; Fang Jian | Zendy; Li Longtu | Zendy

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Grain Size Effects on Piezoelectric Properties and Domain Structure of BaTiO 3 Ceramics Prepared by Two‐Step Sintering

Author(s) -

Huan Yu,

Wang Xiaohui,

Fang Jian,

Li Longtu

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.12601

Subject(s) - sintering , barium titanate , grain size , materials science , ceramic , piezoelectricity , piezoelectric coefficient , mineralogy , chemical engineering , composite material , chemistry , engineering

A series of highly dense barium titanate ( BaTiO 3 ) ceramics with the average grain size ( GS ) from 0.29 to 8.61 μm are successfully prepared by two‐step sintering, and the GS effect on piezoelectric coefficient ( d 33 ) is systematically discussed in this work. It is found that when GS above 1 μm, d 33 can be enhanced with decreasing GS , reaching a maximum value of 519 pC/N around 1 μm due to the high activity of domain wall mobility. Subsequently, d 33 rapidly drops with a further decrease in GS owing to the reduced domain density. The results suggest that it is possible to prepare high‐performance BaTiO 3 ceramics by controlling the GS and domain configuration properly, which brings great revitalization to the BaTiO 3 ‐based piezoceramics.

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