Journal of Materials Science

, Volume 25, Issue 10, pp 4453–4456 | Cite as

Partially stabilized ZrO2 particle-MoSi2 matrix composites

  • J. J. Petrovic
  • R. E. Honnell


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.


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Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • J. J. Petrovic
    • 1
  • R. E. Honnell
    • 1
  1. 1.Materials Science and Technology DivisionLos Alamos National LaboratoryLos AlamosUSA

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