Preparation of Textured Bi0.5(Na,K)0.5TiO3-BiFeO3 Solid Solutions by Reactive-Templated Grain Growth Process |
Kyoko Kato, Toshio Kimura |
School of Integrated Design Engineering, Graduate School of Science and Technology, Keio University |
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ABSTRACT |
Textured $Bi_{0.5}(Na,K)_{0.5}TiO_3-BiFeO_3$ ceramics were prepared by the reactive-templated grain growth process, using platelike $Bi_4Ti_3O_{12}$ particles. The effects of chemical composition in $Bi_{0.5}(Na,K)_{0.5}TiO_3$ on texture development and densification were examined. Textured ceramics were obtained by using $Bi_{0.5}K_{0.5}TiO_3$ as an end member of the solid solution but densification was limited. Dense ceramics were obtained by using $Bi_{0.5}Na_{0.5}TiO_3$ but texture did not develop. Dense, textured ceramics were obtained by using $Bi_{0.5}(Na_{0.5}K_{0.5})_{0.5}TiO_3$. |
Key words:
Texture, Reactive-templated grain growth, Solid solutions, $Bi_{0.5}Na_{0.5}TiO_3$, $Bi_{0.5}K_{0.5}TiO_3$ |
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