SELF-CRACK HEALING BEHAVIOR UNDER COMBUSTION GAS ATMOSPHERE Self-crack-healing behavior under combustion gas atmosphere

机译：燃烧气体大气中燃烧气氛自裂愈合行为下的自裂愈合行为

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Self-crack-healing behavior under combustion gas atmosphere with low oxygen partial pressure, P_(O_2), is important for actualizing ceramic gas turbines, but to date only self-crack-healing behavior in air has been investigated. In this study, we investigated crack-healing behaviors at 1273 K - 1773 K under several levels of P_(O_2). Crack-healing in atmospheres with P_(O_2) > = 50.0 Pa gave rise to the complete strength recovery of cracked specimens, resulting from passive oxidation. Based on the obtained results, the kinetics for strength recovery by self-crack-healing was expressed as a function of healing temperature, T_H (K) and P_(O_2) (Pa).

机译：燃烧气体气氛下的自裂愈合行为具有低氧分压，P_（O_2）对于实现陶瓷燃气轮机是重要的，但迄今为止仅研究了空气中的自裂愈合行为。在这项研究中，我们在几个水平的P_（O_2）下调查了1273 k - 1773k的裂缝治疗行为。在具有P_（O_2）> = 50.0 PA的大气中抗裂愈合，从而引起了裂纹标本的完全强度恢复，由被动氧化引起。基于所得的结果，通过自裂愈合的强度恢复动力学作为愈合温度，T_H（k）和P_（O_2）（PA）的函数表示。

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《International Conference on Advanced Ceramics and Composites》|2010年||共12页
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Toshio Osada; Wataru Nakao; Koji Takahashi;
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中图分类 TQ174-532;
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SELF-CRACK HEALING BEHAVIOR UNDER COMBUSTION GAS ATMOSPHERE Self-crack-healing behavior under combustion gas atmosphere

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