Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties

Kaveh Edalati; Masashi Arimura; Yoshifumi Ikoma; Takeshi Daio; Moriji Miyata; David J. Smith; Zenji Horita

doi:10.1080/21663831.2015.1065454

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Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties

Report | 更新时间：2026-08-19

- Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties
- Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties
- 材料研究快报（英文） 2015年3卷第4期页码：216-221
- 作者机构：
  
  1. WPI International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University Fukuoka819,Japan,0395
  2. Fukuoka Industrial Technology Center Chemical & Textile Industry Research Institute
  3. Department of Materials Science and Engineering Faculty of Engineering Kyushu University
  4. International Research Center for Hydrogen Energy Kyushu University
  5. MIYATA HI-MEQ Institute
  6. Department of Physics Arizona State University Tempe
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2015.1065454
  中图分类号：
- 网络首发：2015-07-24，
  
  纸质出版：2015
- 稿件说明：
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Kaveh Edalati, Masashi Arimura, Yoshifumi Ikoma, 等. Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties[J]. 材料研究快报（英文）, 2015,3(4):216-221.

Kaveh Edalati, Masashi Arimura, Yoshifumi Ikoma, et al. Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties[J]. Materials Research Letters, 2015, 3(4): 216-221.
Kaveh Edalati, Masashi Arimura, Yoshifumi Ikoma, 等. Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties[J]. 材料研究快报（英文）, 2015,3(4):216-221. DOI： 10.1080/21663831.2015.1065454.

Kaveh Edalati, Masashi Arimura, Yoshifumi Ikoma, et al. Plastic Deformation of BaTiO3 Ceramics by High-pressure Torsion and Changes in Phase Transformations, Optical and Dielectric Properties[J]. Materials Research Letters, 2015, 3(4): 216-221. DOI： 10.1080/21663831.2015.1065454.

摘要

Abstract

Ceramics are generally brittle at ambient condition and they can hardly be deformed plastically. In this study

severe plastic deformation was successfully imposed on barium titanate ceramic powders by high-pressure torsion. A tetragonal-to-cubic phase transformation occurred

and the fraction and stability of the cubic phase increased by straining because of the formation of nanograins. BaTiO

exhibited photoluminescence and the yellow intensity increased after straining because of the formation of large fraction of grain boundaries. The dielectric constant of BaTiO

was unusually increased by nanograin formation while the Curie temperature remained constant.

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