Abstract

The effect of rapid rate furnace sintering and HCD-plasma sintering on density, microstructure, and mechanical properties of three Al 2O 3-5% vol. metal carbide composites and Al 2O 3-10% vol. ZrO 2 was studied and the results are compared to conventionally sintered composites. Significantly higher densities were achieved in Al 2O 3-5% vol. SiC composites by plasma sintering as well as rapid rate furnace sintering, which also improved the attendant mechanical properties. High fractional densities and similar mechanical properties were obtained in Al 2O 3-5% vol. TiC and Al 2O 3-10% vol. ZrO 2 composites produced both through rapid rate and conventional sintering. The finest microstructure in particulate—CMCs was achieved by plasma sintering.

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