Mineralogy and Thermodynamics in Refractories

Andus Buhr

Almatis GmbH, 60528 Frankfurt/Germany


Volume 10, Issue 4, Pages 51 - 58


This paper summarises the main content of a presentation given at the 53rd Annual Symposium on Refractories sponsored by The St. Louis Section and Refractory Ceramics Division of the American Ceramic Society when receiving the T. J. Planje St. Louis Refractories Award in 2017. Mineralogical approaches including the work with phase diagrams can be very useful tools for the assessment of hot temperature properties and reactions occurring during wear of refractories. It does not require sophisticated computer programs to work with the diagram but only a ruler and a calculator. The paper describes the beneft of phase diagram work in the assessment of high alumina refractories by selected examples from high alumina castables for steel applications. The investigation of wear mechanism from Andalusite based castable as tundish permanent lining is another example provided.


phase diagrams, high alumina refractories, steel


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