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Tailoring of Grain Size in Textured CaBi_4Ti_4O_(15) Ceramics Prepared by Templated Grain Growth Process

机译:模板化晶粒生长工艺制备CaBi_4Ti_4O_(15)质感陶瓷的晶粒尺寸定制

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摘要

To examine the effect of grain size on piezoelectric constant d_(33), textured CaBi_4Ti_4O_(15) (CBT) and Mn-doped CBT ceramics were prepared with a special emphasis on the control of the grain size. The textured ceramics were prepared using the templated grain growth method. First, the mechanism of micro-structure development was examined to design the method to control the grain size. It was found that the morphological change in the matrix grains in the presence of platelike template grains was the major origin of microstructure development. This suggested that the grain size in textured ceramics was determined by the template grain size. Then, textured ceramics with various grain sizes were prepared using template powders with various grain sizes. Finally, the effect of grain size on the value of d_(33) was evaluated. It was found that the grain size had a small effect on the value of d_(33) for textured CBT and Mn-doped CBT ceramics.
机译:为了检查晶粒尺寸对压电常数d_(33)的影响,制备了纹理化的CaBi_4Ti_4O_(15)(CBT)和Mn掺杂的CBT陶瓷,其中重点是晶粒尺寸的控制。使用模板晶粒生长法制备纹理陶瓷。首先,研究了微结构发展的机理,以设计控制晶粒尺寸的方法。已经发现,在存在板状模板晶粒的情况下,基体晶粒的形态变化是显微组织发展的主要起源。这表明纹理陶瓷的晶粒尺寸由模板晶粒尺寸决定。然后,使用具有各种粒度的模板粉末制备具有各种粒度的纹理陶瓷。最后,评估了晶粒尺寸对d_(33)值的影响。发现对于CBT和Mn掺杂的CBT陶瓷,晶粒尺寸对d_(33)的值影响很小。

著录项

  • 来源
    《Journal of the American Ceramic Society》 |2012年第11期|3421-3427|共7页
  • 作者

    Ken Tamura; Toshio Kimura;

  • 作者单位

    Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

    Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 13:38:57

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