Chapter 29. Relationship of Creep Properties of Bauxite Refractories with Microstructure

  1. William Smothers
  1. Xiangchong Zhong,
  2. Gengcheng Sun and
  3. Rushan Yin

Published Online: 28 MAR 2008

DOI: 10.1002/9780470320310.ch29

Applications of Refractories: Ceramic Engineering and Science Proceedings, Volume 7, Issue 1/2

Applications of Refractories: Ceramic Engineering and Science Proceedings, Volume 7, Issue 1/2

How to Cite

Zhong, X., Sun, G. and Yin, R. (1986) Relationship of Creep Properties of Bauxite Refractories with Microstructure, in Applications of Refractories: Ceramic Engineering and Science Proceedings, Volume 7, Issue 1/2 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320310.ch29

Author Information

  1. Institute of Refractories Research Luoyang, China

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1986

ISBN Information

Print ISBN: 9780470374443

Online ISBN: 9780470320310

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Keywords:

  • creep mechanism;
  • diaspore-kaolinite;
  • constant stress;
  • HF-treatment;
  • porosity

Summary

The creep properties at elevated temperatures of different grades of bauxite refractories with and without additions of K2O, MgO, etc., have been studied by torsion and compression test methods and correlated with phase composition and microstructure. The creep mechanism is discussed, based on analysis of parameters such as transient creep deceleration exponent (m), creep activation energy (AH) and stress exponent (n). It is concluded that creep behavior is mainly determined by microstructural characteristics and controlled by glass effect and crystal; effect.