Chapter 24. Influence of Twist Angle on the Fracture Toughness of (0001) Twist Boundary of Alumina

  1. Don Bray
  1. Junichi Tatami1,
  2. Tamotsu Harada2,
  3. Kouichi Yasuda2 and
  4. Yohtaro Matsuo2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294482.ch24

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3

How to Cite

Tatami, J., Harada, T., Yasuda, K. and Matsuo, Y. (1988) Influence of Twist Angle on the Fracture Toughness of (0001) Twist Boundary of Alumina, in 22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 19, Issue 3 (ed D. Bray), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294482.ch24

Author Information

  1. 1

    Research Fellow of the Japan Society for Promotion of Science 2-12-1 Ookayama, Meguroku, Tokyo, Japan

  2. 2

    Tokyo Institute of Technology 2-12-1 Ookayama, Meguroku, Tokyo, Japan

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470375587

Online ISBN: 9780470294482

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Keywords:

  • alumina;
  • energy;
  • polycrystalline;
  • ceramics;
  • bicrystals

Summary

The influence of the twist angle on the fracture toughness of (0001) twist boundary of alumina was investigated using alumina bicrystals. The alumina bicrystals were fabricated by joining two single crystals which were rotated relative to each other around the <0001> axis with the specific twist angles. Interfacial fracture the toughness of alumina bicrystals was measured by the single edge V-notched tension test. It was shown that the fracture toughness of (0001) twist boundary of alumina varied from 1 Jm-2 to 22Jm-2 depending on the twist angle. The twist angle dependence of the interfacial fracture toughness was discussed with the change in surface energy, boundary energy and plastic dissipative energy.