利用 MSP试验在全组成范围和不同的实验温度下对 Mo/PSZ系两相复合材料进行了高温力学性能的测试,详细讨论了各组成复合材料在不同温度下的破坏模式和强度与温度的依存性.实验结果证明,利用简便的MSP实验法不仅可以精确地表征Mo/PSZ系复合材料的破坏行为,而且MSP强度与抗弯强度有很好的对应关系,利用这种关系可以从测得的MSP强度来预测抗弯强度.
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.
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