Chapter 2. Influence of Carbon on the Microstructure of Periclase Refractories

  1. William J. Smothers
  1. H. Emlemdi and
  2. J. R. Blachere

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310465.ch2

Application of Refractories: Ceramic Engineering and Science Proceedings, Volume 9, Issue 1/2

Application of Refractories: Ceramic Engineering and Science Proceedings, Volume 9, Issue 1/2

How to Cite

Emlemdi, H. and Blachere, J. R. (1988) Influence of Carbon on the Microstructure of Periclase Refractories, in Application of Refractories: Ceramic Engineering and Science Proceedings, Volume 9, Issue 1/2 (ed W. J. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310465.ch2

Author Information

  1. Dept. Materials Science and Eng., Univ. Pittsburgh, Pittsburgh, PA 15261

Publication History

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

ISBN Information

Print ISBN: 9780470374764

Online ISBN: 9780470310465

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Keywords:

  • microstructure;
  • thermal shock resistance;
  • distribution;
  • probabilities;
  • cumulative distributions

Summary

The influence of carbon on the microstructure of 98% MgO refractories was investigated by quantitative ceramography after selected heat treatments. The dihedral angle of the silicate phase at the periclase grain boundaries inside the grain of the refractories containing carbon is increased after high temperature coking. The distribution of dihedral angles measured on polished sections is broader than derived mathematically, however the trends of the true dihedral angles, the medians of the measured distributions, are followed also by the whole distributions. Reasons for this broadening of the distributions and for the influence of carbon on the micro-structure of periclase refractories are discussed.