Plate-like Na0.5Bi0.5TiO3template synthesized by a topochemical method

J. T. Zeng; Kin Wing Kwok; W. K. Tam; H. Y. Tian; X. P. Jiang; H. L.W. Chan

doi:10.1111/j.1551-2916.2006.01297.x

Plate-like Na_0.5Bi_0.5TiO₃template synthesized by a topochemical method

J. T. Zeng, Kin Wing Kwok, W. K. Tam, H. Y. Tian, X. P. Jiang, H. L.W. Chan

Research output: Journal article publication › Journal article › Academic research › peer-review

50 Citations (Scopus)

Abstract

Large plate-like Na0.5Bi0.5TiO3(NBT) templates have been successfully synthesized from bismuth layer-structured ferroelectric Na0.5Bi4.5Ti4O15(NBIT) particles by the topochemical method. Because of the highly anisotropic structure, plate-like NBIT particles were first synthesized by the molten-salt process. After the topochemical reaction with the complementary reactants (Na2CO3, and TiO2) in NaCl flux, the layer-structured NBIT particles were transformed to the perovskite NBT templates. The resulting NBT templates are large and of plate-like shape. Our results also reveal that they are more effective in inducing grain orientation in the BNKT-BT ceramics as compared with BIT templates. For a BNKT-BT ceramic textured with 20 wt% of NBT templates, it exhibits a very high degree of grain orientation and gives a large Lotgering factor of 0.89.

Original language	English
Pages (from-to)	3850-3853
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	89
Issue number	12
DOIs	https://doi.org/10.1111/j.1551-2916.2006.01297.x
Publication status	Published - 1 Dec 2006

ASJC Scopus subject areas

Ceramics and Composites
Geology
Geochemistry and Petrology
Materials Chemistry

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10.1111/j.1551-2916.2006.01297.x

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title = "Plate-like Na0.5Bi0.5TiO3template synthesized by a topochemical method",

abstract = "Large plate-like Na0.5Bi0.5TiO3(NBT) templates have been successfully synthesized from bismuth layer-structured ferroelectric Na0.5Bi4.5Ti4O15(NBIT) particles by the topochemical method. Because of the highly anisotropic structure, plate-like NBIT particles were first synthesized by the molten-salt process. After the topochemical reaction with the complementary reactants (Na2CO3, and TiO2) in NaCl flux, the layer-structured NBIT particles were transformed to the perovskite NBT templates. The resulting NBT templates are large and of plate-like shape. Our results also reveal that they are more effective in inducing grain orientation in the BNKT-BT ceramics as compared with BIT templates. For a BNKT-BT ceramic textured with 20 wt% of NBT templates, it exhibits a very high degree of grain orientation and gives a large Lotgering factor of 0.89.",

author = "Zeng, {J. T.} and Kwok, {Kin Wing} and Tam, {W. K.} and Tian, {H. Y.} and Jiang, {X. P.} and Chan, {H. L.W.}",

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T1 - Plate-like Na0.5Bi0.5TiO3template synthesized by a topochemical method

AU - Zeng, J. T.

AU - Kwok, Kin Wing

AU - Tam, W. K.

AU - Tian, H. Y.

AU - Jiang, X. P.

AU - Chan, H. L.W.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Large plate-like Na0.5Bi0.5TiO3(NBT) templates have been successfully synthesized from bismuth layer-structured ferroelectric Na0.5Bi4.5Ti4O15(NBIT) particles by the topochemical method. Because of the highly anisotropic structure, plate-like NBIT particles were first synthesized by the molten-salt process. After the topochemical reaction with the complementary reactants (Na2CO3, and TiO2) in NaCl flux, the layer-structured NBIT particles were transformed to the perovskite NBT templates. The resulting NBT templates are large and of plate-like shape. Our results also reveal that they are more effective in inducing grain orientation in the BNKT-BT ceramics as compared with BIT templates. For a BNKT-BT ceramic textured with 20 wt% of NBT templates, it exhibits a very high degree of grain orientation and gives a large Lotgering factor of 0.89.

AB - Large plate-like Na0.5Bi0.5TiO3(NBT) templates have been successfully synthesized from bismuth layer-structured ferroelectric Na0.5Bi4.5Ti4O15(NBIT) particles by the topochemical method. Because of the highly anisotropic structure, plate-like NBIT particles were first synthesized by the molten-salt process. After the topochemical reaction with the complementary reactants (Na2CO3, and TiO2) in NaCl flux, the layer-structured NBIT particles were transformed to the perovskite NBT templates. The resulting NBT templates are large and of plate-like shape. Our results also reveal that they are more effective in inducing grain orientation in the BNKT-BT ceramics as compared with BIT templates. For a BNKT-BT ceramic textured with 20 wt% of NBT templates, it exhibits a very high degree of grain orientation and gives a large Lotgering factor of 0.89.

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DO - 10.1111/j.1551-2916.2006.01297.x

M3 - Journal article

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VL - 89

SP - 3850

EP - 3853

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

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Plate-like Na_0.5Bi_0.5TiO₃template synthesized by a topochemical method

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