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Micromechanics Analysis of Elastic Modulus of Alumina-Carbon Refractories

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Abstract:

Based on the micromechanics theory, Alumina-carbon refractories were regarded as resin-carbon bonded composites, including alumina, graphite and pores derived from particles packing gaps and phenolic resin pyrolysis. Graphite was regarded as isotropic spherical inclusions; particles packing gaps and phenolic resin pyrolysis pores were regarded as pore phase all together. Applying Mori-Tanaka multi-phase spherical inclusion method, firstly, elastic constants of resin-carbon phase were computed reversely by the elastic constants known alumina-carbon refractories, alumina and graphite, and then the effective elastic modulus of alumina-carbon refractories were estimated by the calculated elastic constants of resin-carbon and other raw materials. The results show that: the predicted elastic modulus by Mori-Tanaka model are higher than the experimental measurement values; resin carbon residue and pores have a great influence on effective elastic modulus of alumina-carbon refractories.

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Periodical:

Advanced Materials Research (Volume 1095)

Pages:

175-179

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1095.175

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Online since:

March 2015

Authors:

Tian Fei Ma*, Hong Xia Li, Xin Fu Wang, Guo Qi Liu

Keywords:

Alumina-Carbon Refractories, Elastic Modulus, Micromechanics

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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