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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

MSP试验法评价Mo/PSZ系复合材料的强度特性(Ⅰ)

江莞1; 王刚1; 吴历斌1; 李敬锋2   

  1. 1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050; 2. 清华大学材料科学与工程系, 北京 100084

  • 收稿日期:2001-07-13 修回日期:2001-12-03 出版日期:2002-07-20 网络出版日期:2002-07-20

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

PDF (PC)

1243

被引次数

70

摘要： 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.

关键词: Mo/PSZ系复合材料, MSP试验法, 高温强度

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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