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Journal of Ceramic Science and Technology

The Journal of Ceramic Science and Technology publishes original scientific articles on all topics of ceramic science and technology from all ceramic branches. The focus is on the scientific exploration of  the relationships between processing, microstructure and properties of sintered ceramic materials as well as on new processing routes for innovative ceramic materials. The papers may have either theoretical or experimental background. A high quality of publications will be guaranteed by a thorough double blind peer review process.

The Journal is published by Göller Verlag GmbH on behalf of the Deutsche Keramische Gesellschaft (DKG). Edited by Yu-Ping Zeng, Shanghai Institute of Ceramics, Chinese Academy of Sciences, China.

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Dependent Thermo-Mechanical Behavior of Novel Alumina-Based Refractories

A. Böhm1, C.G. Aneziris2, J. Malzbender1

1 Institute of Energy and Climate Research - 2, Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Strasse, D-52425 Jülich, Germany
2 Institute of Ceramic, Glass and Construction Materials, TU Bergakademie Freiberg, Agricolastrasse 17, D-09596 Freiberg, Germany

received January 29, 2014, received in revised form April 28, 2014, accepted May 6, 2014

Vol. 5, No. 2, Pages 167-171   DOI: 10.4416/JCST2014-00001

Abstract

Novel alumina-based refractories were assessed with regard to their thermo-mechanical behavior from room temperature to 1000 °C within the framework of the DFG SPP "FIRE" program. These refractories are being developed for use in slide gates or entry nozzles. Their elastic behavior was investigated with the impulse excitation technique. Wedge splitting tests were used to determine their fracture resistance behavior. The evaluated material characteristics and thermal shock resistance were compared to those of a standard refractory material, permitting conclusions to be drawn regarding the effect of the additives used (TiO2, ZrO2) on apparent elastic behavior, crack propagation and thermal shock resistance.

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Keywords

Refractories, ceramics, elastic modulus, fracture, thermal shock

References

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