Chapter 14. Al2O3-Strengthened Feldspathic Porcelain Bodies: Effects of the Amount and Particle Size of Alumina

  1. John B. Wachtman Jr
  1. Ryusuke Harada,
  2. Noriyuki Sugiyama and
  3. Hideki Ishida

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314807.ch14

A Collection of Papers Presented at the 97th Annual Meeting and the 1995 Fall Meetings of the Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 17, Issue 1

A Collection of Papers Presented at the 97th Annual Meeting and the 1995 Fall Meetings of the Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 17, Issue 1

How to Cite

Harada, R., Sugiyama, N. and Ishida, H. (1996) Al2O3-Strengthened Feldspathic Porcelain Bodies: Effects of the Amount and Particle Size of Alumina, in A Collection of Papers Presented at the 97th Annual Meeting and the 1995 Fall Meetings of the Materials & Equipment/Whitewares: Ceramic Engineering and Science Proceedings, Volume 17, Issue 1 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314807.ch14

Author Information

  1. Basic Research Center, INAX Corp., Aichi, Japan

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375402

Online ISBN: 9780470314807

SEARCH

Keywords:

  • feldspathic;
  • alumina;
  • microstructure;
  • impurities;
  • pycnometer

Summary

The effects of the amount and particle size of alumina on the densification and flexural strength of the feldspathic porcelain bodies were investigated. Mixed powder was processed by the spray dryer and fired after forming. Samples with 50 mass% of alumina added had a maximum flexural strength of 1.50 Mpa after being fired at 1350°C. Flexural strength and packing ratio were increased with the firing temperature and showed the maximum value at a certain firing temperature, then decreased. The relationship between packing ratio and flexural strength indicated a linear correlation. When more alumina was added, the gradient (k value) became biggel. Flexural strength and k value were maximized at an alumina particle size of about 1–2 pm.