Partially stabilized ZrO2 particle-MoSi2 matrix composites
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- Petrovic, J.J. & Honnell, R.E. J Mater Sci (1990) 25: 4453. doi:10.1007/BF00581107
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A 30 vol % partially stabilized ZrO2 particle-MoSi2 matrix composite was synthesized by hot pressing to 96% theoretical density at 1700°C. No chemical reactions between the PSZ and MoSi2 were observed after hot pressing, indicating thermodynamic stability of these species. The composite formed an adherent and coherent glassy-appearing oxidation layer after oxidation at 1500°C. The room temperature indentation fracture toughness of the composite was 2.5 times that of pure MoSi2. These results demonstrate the feasibility of PSZ particle-MoSi2 matrix composites.