C/SiC复合材料高温蠕变的声发射特性

方 鹏; 成来飞; 张立同; 栾新刚; 梅 辉

C/SiC复合材料高温蠕变的声发射特性

西北工业大学超高温结构复合材料国防科技重点试验室，西安 710072

基金项目:

国家杰出青年科学基金(50425208)；国家自然科学基金重大计划重点项目(90405015)；西北工业大学博士创新基金(CX200406)

详细信息

作者简介:
方鹏(1980-)，男，博士研究生，主要从事陶瓷基复合材料声发射研究。

中图分类号: TG115.28
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出版历程
- 收稿日期: 2006-11-12
- 刊出日期: 2008-02-09

Acoustic Emission Characteristic of C/SiC Composite During Creep at High Temperature

摘要

摘要: 利用声发射技术(AE)对C/SiC复合材料高温蠕变试验过程进行动态监测。通过声发射参数分析法对蠕变过程中的声发射累计能量随蠕变时间变化进行了分析；同时对蠕变过程中典型AE信号的频率特征进行了分析，揭示了C/SiC复合材料蠕变损伤的演化过程及规律，给出了材料蠕变损伤发展的不同阶段以及各阶段损伤类型。
- 声发射技术 /
- C/SiC复合材料 /
- 蠕变 /
- 动态监测
Abstract: Acoustic emission(AE) was used to inspect the creep test at high temperature in real time. A parameter-analyzing approach was introduced to analyze energy, different damage phases and types of damage by AE data. The spectrum of typical AE signals was analyzed to reveal the damage evolution of C/SiC composite during creep. The mechanism in different stages of damage evolution was also differentiated.
- Acoustic emission technique /
- C/SiC composite /
- Creep /
- Dynamic monitoring

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参考文献(17)

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C/SiC复合材料高温蠕变的声发射特性

作者简介: 方 鹏(1980-)，男，博士研究生，主要从事陶瓷基复合材料声发射研究。

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Acoustic Emission Characteristic of C/SiC Composite During Creep at High Temperature

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作者简介:
方鹏(1980-)，男，博士研究生，主要从事陶瓷基复合材料声发射研究。