Stability of Pure and Aln-Alloyed Al2OC and Influence on Abrasive Properties of Al2O3-A14C3-AlN Materials
The basic results published by Foster et al. (1) in 1956 allowed to understand twenty years after many phenomena linked to high temperature reactivity of alumina against carbon. They called attention to possible syntheses by melting, in a difficult range of temperature, and likewise to three compounds: A14C3 as a carbon bearer in high temperature processes; A1404C as a stable oxycarbide the formation of which is ensured by eutectic crystallization ; and Al2OC as a quite particular phase that many laboratories had expected to find in fumes and condensates rather than in the body of ceramics.
KeywordsPartial Melting Graphite Matrix Abrasive Property Graphite Resistor Furnace Peritectic Line
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