Application of Texture Engineering to Piezoelectric Ceramics-A Review-

Kimura, Takeshi

doi:10.2109/jcersj.114.15

Cited by 164 publications

(133 citation statements)

References 51 publications

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“…3), 4) In general, a high relative density of above 90% is required for grain boundary migration, 17) and rigid inclusion grains inhibit densification.…”

Section: Characterizationmentioning

confidence: 99%

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Effect of SrBi8Ti7O27 hetero-template on texture development in Bi4Ti3O12

Onodera

Kimura

2012

J. Ceram. Soc. Japan

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The effect of hetero-template grains on texture development in Bi 4 Ti 3 O 12 (BiT) was examined. The hetero-template was SrBi 8 Ti 7 O 27 (S 0.5 BT) grains with a large platelike shape. Texture developed in pure BiT made by solid-state reaction without template grains. The origin of texture development was attributed to the growth of small platelike grains with an aspect ratio of approximately 3 (homo-template) present in the BiT powder. The hetero-template grains added to the BiT powder promoted texture development, and the degree of the promotion was dependent on the amount of hetero-template. When the concentration of hetero-template was 1 vol %, the hetero-template and homo-template acted as the origin of texture development. When the concentration was increased to 5 vol %, the orientation of grains was almost only caused by the hetero-template. When the concentration was further increased to 10 vol %, texture did not develop. SrTiO 3 in the hetero-template dissolved in the BiT matrix grains, thus reducing the grain growth rate. These results indicate that grain growth is essential for texture development in BiT.

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“…3), 4) In general, a high relative density of above 90% is required for grain boundary migration, 17) and rigid inclusion grains inhibit densification.…”

Section: Characterizationmentioning

confidence: 99%

“…3), 4) In this method, a green compact is made from a mixture of large, platelike template grains and small, equiaxed matrix grains. The template grains are aligned in the green compact by methods such as tape-casting and extrusion.…”

Section: Introductionmentioning

confidence: 99%

Effect of SrBi8Ti7O27 hetero-template on texture development in Bi4Ti3O12

Onodera

Kimura

2012

J. Ceram. Soc. Japan

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“…2), 3) This paper addresses the textured lead-free piezoelectric ceramics prepared by the templated grain growth (TGG) method.…”

Section: Introductionmentioning

confidence: 99%

Microstructure development and texture formation in lead-free piezoelectric ceramics prepared by templated grain growth process

Kimura

2016

J. Ceram. Soc. Japan

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Templated and reactive-templated grain growth is a convenient preparation method for textured ceramics. In this method, green compacts composed of aligned template grains and randomly oriented matrix grains are sintered. The matrix grains must be eliminated to obtain highly textured materials and an understanding of the growth behavior for both template and matrix grains is essential to the design of the conditions for effective elimination of matrix grains. This review paper addresses the microstructure development in BaBi 4 Ti 4 O 15 and Bi 4 Ti 3 O 12 prepared by the templated grain growth method and in Bi 0.5 (Na 1¹x K x ) 0.5 -TiO 3 and K 0.5 Na 0.5 NbO 3 textured by the reactive-templated grain growth method. The grains of these materials are faceted, and critical driving force is required for the growth of faceted grains. It is illustrated that the relative magnitude of the driving force of the template grains and the critical driving force determines the mode of grain growth behavior and the microstructure of the final products. A discussion on the grain growth behavior is presented to give the criteria for designing the preparation conditions.

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“…Thus CBT ceramics exhibit a piezoelectric property of only 3~7 pC/N [10]. To overcome these disadvantages, lots of research works about CBT ceramics was focused on enhancing its properties by rare-earth element doping and grain orientation techniques [11,12], etc. Based on previous studies, A-site substitution reveals more effective than Bsite substitution because the cations in B-site have the similar in size and hardly make a major contribution to the polarization process [13].…”

Section: Introductionmentioning

confidence: 99%

Study on the Textured CaBi4Ti4O15 Ceramics with Sc Modification

Ma¹,

Jin²,

Zhang³

et al. 2015

Proceedings of the 2015 International Symposium on Material, Energy and Environment Engineering

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Abstract. Sc 3+ doped textured lead-free ceramics of CaBi 4-x Sc x Ti 4 O 15 (CBScT) were prepared by oriented consolidation of anisometric particle method with tape casting while the plate-like powders were produced by MMS method. The higher dielectric constant and lower dielectric loss were obtained as the x=0.2. The relationship between dielectric and ferroelectric properties were discussed. Within the optimal Sc doping content, the measured ε r , tanδ, Pr and T C are 165, 1.8%, 8 μC/cm 2 and 700 o C, repectively.

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Application of Texture Engineering to Piezoelectric Ceramics-A Review-

Cited by 164 publications

References 51 publications

Effect of SrBi<sub>8</sub>Ti<sub>7</sub>O<sub>27</sub> hetero-template on texture development in Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub>

Effect of SrBi<sub>8</sub>Ti<sub>7</sub>O<sub>27</sub> hetero-template on texture development in Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub>

Microstructure development and texture formation in lead-free piezoelectric ceramics prepared by templated grain growth process

Study on the Textured CaBi4Ti4O15 Ceramics with Sc Modification

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