The resistance to flame erosion of Alfred 410, a carbon bonded SiC-Graphite composition, was improved by the substitution of larger grain sized SiC for the “settling tank fines” previously used. A new method of forming and firing carbon bonded SiC-Graphite was developed in which the material was carbonized under pressure in stainless steel dies. The process resulted in a product with 15％ higher density and 40% lower por¬osity than that previously obtained. This improvement in properties also resulted in greater resistance to flame erosion.
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