Abstract
SiC with mixtures of A12O3 and Gd2O3 additions were effective in densifying SiC. The density of 98% of theoretical density was achieved with the Gd2O3 and A12O3 eutectic composition. It is suggested that the improvement in density is due to liquid phase formed between A12O3 and Gd2O3. The sintered bodies have an improved fracture toughness due to the crack deflection mechanism.
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