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Materials 2010, 3(11), 4965-4978; doi:10.3390/ma3114965

Mechanisms of Texture Development in Lead-Free Piezoelectric Ceramics with Perovskite Structure Made by the Templated Grain Growth Process

Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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Received: 1 October 2010 / Revised: 10 November 2010 / Accepted: 19 November 2010 / Published: 22 November 2010
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Abstract

The mechanisms of texture development were examined for BaTiO3 and a (K,Na,Li)(Nb,Ta)O3 solid solution made by the templated grain growth method, and compared with the mechanism in Bi0.5(Na,K)0.5TiO3. The dominant mechanism was different in each material; grain boundary migration in BaTiO3, solid state spreading in Bi0.5(Na,K)0.5TiO3, and abnormal grain growth in the (K,Na,Li)(Nb,Ta)O3 solid solution. The factor determining the dominant mechanism is the degree of smoothness of surface structure at an atomic level.
Keywords: texture development; microstructure; BaTiO3; (K,Na)NbO3-based material texture development; microstructure; BaTiO3; (K,Na)NbO3-based material
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Kimura, T.; Yi, Y.; Sakurai, F. Mechanisms of Texture Development in Lead-Free Piezoelectric Ceramics with Perovskite Structure Made by the Templated Grain Growth Process. Materials 2010, 3, 4965-4978.

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