Mechanisms of Texture Development in Bismuth Layer-Structured Ferroelectrics Prepared by Templated Grain Growth

The mechanism for texture development in bismuth layer-structured ferroelectrics prepared by the templated grain growth method was examined using template and matrix grains with different chemical compositions. The template particles used were platelike Bi₄Ti₃O₁₂ and Ba₆Ti₁₇O₄₀ for SrBi₄Ti₄O₁₅-matrix composites and platelike Ba₆Ti₁₇O₄₀ and Sr₃Ti₂O₇ for BaBi₄Ti₄O₁₅-matrix. The 001-texture developed in all composites examined. The origins of texture development were the growth of matrix grains to be platelike and the formation of face-to-face contact between the template and matrix grains and also between matrix grains.