Journal of Inorganic Materials

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High Temperature Strength of Mo/PSZ Composities as Evaluated by MSP Test (Ⅰ)

JIANG Wan1; WANG Gang1; WU Li-Bin1; LI Jing-Feng2   

  1. 1. State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Department of Materials and Enginering Tsinghya University, Beijing 100084, China
  • Received:2001-07-13 Revised:2001-12-03 Published:2002-07-20 Online:2002-07-20

Abstract: The mechanical properties of molybdenum/partially stabilized zirconia (PSZ) composites were investigated
from room temperature to 1573K by means of modified small punch (MSP) test which has been found to be suitable for the mechanical evaluation of brittle
materials. The temperature dependences of the deformation, strength and fracture behavior of the composites were examined in detail. The results of this paper
have shown that the high temperature strength can be simply determined by the MSP test and there exists a good linear relationship between MSP strength and
conventional 4-point bending strength. Using such correspondence the bending strength can be estimated from the MSP strength.

Key words: metal/ceramic composites, molybdenum, partially stabilized zirconia, MSP test, high temperature strength

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