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Microstructure and Phase Analysis of Ethyl Silicate-Bonded Alumina-Zircon Refractories

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Refractories and Industrial Ceramics Aims and scope

Abstract

Alumina-zircon refractories are prepared using an aqueous ethyl silicate solution as the gel-polymerized bond. Test specimens are heat-treated by reaction sintering at different temperature (1450 – 1600°C) and holding times (1 – 4 h) to yield new refractory phases zirconium dioxide and mullite. The specimens are tested for strength, porosity, sintering shrinkage, apparent density, and chemical and phase composition using x-ray diffractometry and electron scanning microscopy. Reactive sintering is shown to be a effective route towards obtaining ethyl-silicate-bonded alumina-zircon refractories with tailored microscopic and physical properties.

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Authors and Affiliations

  1. YildizTechnical University, Istanbul, Turkey

    H. Sarydikmen & N. Kushkonmaz

Authors
  1. H. Sarydikmen
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  2. N. Kushkonmaz
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Translated from Novye Ogneupory, No. 4, pp. 82 – 86, April, 2005.

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Sarydikmen, H., Kushkonmaz, N. Microstructure and Phase Analysis of Ethyl Silicate-Bonded Alumina-Zircon Refractories. Refract Ind Ceram 46, 212–216 (2005). https://doi.org/10.1007/s11148-005-0088-0

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  • DOI: https://doi.org/10.1007/s11148-005-0088-0

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