Preparation of Textured Bi4Ti3O12 Ceramics by Templated Grain Growth
Preparation of Textured Bi4Ti3O12 Ceramics by Templated Grain Growth
复制标题
模板晶粒生长制备织构Bi4Ti3O12陶瓷
DOI：
10.4028/www.scientific.net/kem.264-268.1317
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发表时间：
2004-05
期刊：
影响因子：
--
通讯作者：
D.S.Yan
中科院分区：
文献类型：
--
作者：
Yanmei Kan;Peiling Wang;Yongxiang Li;Yi-Bing Cheng;D.S.Yan
钛酸铋（Bi4Ti3O12）具有高居里温度和高压电系数，适用于高温换能器、电容器和传感器。在本研究中，采用模板晶粒生长的方法制备了钛酸铋陶瓷。采用熔盐合成方法制备了片状Bi4Ti3O12种子，并将其加入到分散良好的Bi4Ti3O12水相悬浮液中进行带铸造。样品采用无压烧结法烧制。用Lotgering法测定了烧结体的x射线衍射织构。结果表明，晶粒取向程度受烧结参数和模板尺寸的影响。起始混合料中种子含量对籽粒织构的影响不显著。随着烧结温度的升高，Bi4Ti3O12晶粒（00l）面的x射线衍射逐渐占主导地位，取向程度增加。由于形成了高度织构的微观结构，样品在平行和垂直于铸带平面的方向上表现出各向异性的介电性能。
Bismuth titanate (Bi4Ti3O12) has high Curie temperature and high piezoelectric coefficient and is suitable for applications as high temperature transducers, capacitors and sensors. In this study textured bismuth titanate ceramics have been produced by templated grain growth. Platelike Bi4Ti3O12 seeds were prepared by molten salts synthesis and added into well-dispersed aqueous Bi4Ti3O12 suspensions for tape casting. Samples were fired by pressureless sintering. Texture of the sintered body was determined from x-ray diffraction by the Lotgering method. It was found that the degree of grain orientation was influenced by the sintering parameters and the size of template. The effect of seed contents in the starting mix on the texture was not significant. With an increase in sintering temperature, x-ray diffraction from (00l) planes of Bi4Ti3O12 grains progressively dominated the patterns and the degree of orientation increased. The samples showed an anisotropic dielectric property in directions parallel and perpendicular to the tape-casting plane due to the formation of highly textured microstructure.
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影响因子：
0.8
作者：
J. Dorrian;R. Newnham;D. K. Smith;M. Kay
通讯作者：
J. Dorrian;R. Newnham;D. K. Smith;M. Kay
影响因子：
5.7
作者：
Y. Kan;Pei-ling Wang;Yongxiang Li;Yi-bing Cheng;D. Yan
通讯作者：
Y. Kan;Pei-ling Wang;Yongxiang Li;Yi-bing Cheng;D. Yan
DOI：
10.4028/www.scientific.net/kem.224-226.597
发表时间：
2002-06
期刊：
Key Engineering Materials
影响因子：
--
作者：
Y. Kan;Pei-ling Wang;Y. Li;Yi-Bing Cheng;D. Yan
通讯作者：
Y. Kan;Pei-ling Wang;Y. Li;Yi-Bing Cheng;D. Yan
影响因子：
1.5
作者：
TAKENAKA, T;SAKATA, K
通讯作者：
SAKATA, K