Chapter 21. Synthesis of Non-Permeable Porous Ceramics by Mixing Ceramic Hollow Micro Spheres

  1. Waltraud M. Kriven and
  2. Hua-Tay Lin
  1. Eiji Okutani,
  2. Toshiro Tanaka and
  3. Takashi Nishikawa

Published Online: 27 MAR 2008

DOI: 10.1002/9780470294802.ch21

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3

27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3

How to Cite

Okutani, E., Tanaka, T. and Nishikawa, T. (2003) Synthesis of Non-Permeable Porous Ceramics by Mixing Ceramic Hollow Micro Spheres, in 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: A: Ceramic Engineering and Science Proceedings, Volume 24, Issue 3 (eds W. M. Kriven and H.-T. Lin), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294802.ch21

Author Information

  1. Department of Materials Science and Engineering, Ehime University, Matsuyama, 790-8577 Japan

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 2003

ISBN Information

Print ISBN: 9780470375839

Online ISBN: 9780470294802

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Keywords:

  • ceramics;
  • shirasu-balloon;
  • pottery clay;
  • scanning electron microscope;
  • potassium

Summary

We have studied the production method of porous ceramics with densely dispersed closed pores with some 10 micrometer spheres in diameter for an ultra light-weight pottery and an electrical and mechanical application. The closed pores were formed by mixing ceramic hollow micro spheres with the ceramic row material. The material of the hollow ceramic spheres and sintering condition were optimized with relation to the ceramic body. We succeeded to make 45% closed pores with spherical shape into the pottery bodies without any open pore The flexural strength and the thermal conductivity of there porous ceramics are also discussed.