Mineralogy and Thermodynamics in Refractories
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
 Levin, E.M.; Robbins, C.R.; McMurdie, H.F.: Phase diagrams for ceramists. Amer. Ceram. Soc., Columbus, OH, 1964  Buhr, A.: Tonerdereiche Feuerfestbetone für den Einsatz in der Stahlindustrie (High alumina refractory castables for use in the steel industry). PhD Thesis 1996 and publication in Stahl und Eisen 116 (1996)  59–66  Schlegel, E.: Auswertung von Phasendiagrammen hinsichtlich der Alkalibeständigkeit feuerfester Baustoffe, Teil 1. Keram. Z. 61 (2009) [2–3] 94–97  Morgan, P.E.D.; Koutsoutis, M.S.: Phase studies concerning sintering in aluminas doped with Ti 4+. Amer. Chem. Soc. 68 (1985)  C156–C158  Poirier, J.; et al..: Andalusite: An attractive raw material for its excellent thermal shock resistance. refractories WORLDFORUM 1 (2009)  93–102  www.factsage.com
Göller Verlag GmbH