Journal of Inorganic Materials, Volume. 39, Issue 6, 609(2024)

Research Progress on In-situ Monitoring of Damage Behavior of SiCf/SiC Ceramic Matrix Composites at High Temperature Environments

Xiaochen WU1... Ruixiao ZHENG1,*, Lu LI2,*, Haolin MA2, Peihang ZHAO1 and Chaoli MA2 |Show fewer author(s)
Author Affiliations
  • 11. School of Materials Science and Engineering, Beihang University, Beijing 100191, China
  • 22. Research Institute for Frontier Science, Beihang University, Beijing 100191, China
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    Continuous SiC fiber-reinforced SiC (SiCf/SiC) composites possess high specific strength, high specific modulus, high-temperature resistance, and radiation resistance, making them suitable for applications in hot-end parts of advanced aero-engines and claddings of nuclear reactors. SiCf/SiC composites are composed of fibers, interfaces and matrix, endowing them with complex multi-scale structural characteristics. These composites are designed to serve in harsh environment, and their damage and failure process are complex. A profound understanding and accurate analysis of damage and failure mechanisms of SiCf/SiC composites under service environments are of great significance for the optimized design of materials and the reliable service of components. Traditional “post-mortem analysis” methods are incapable of acquiring data during the damage and failure process of materials under complex service environments. Therefore, there is an urgent need to develop in-situ characterization techniques for composites under high-temperature service environments. This paper reviewed the principles, advantages, and limitations of in-situ monitoring methods based on scanning electron microscopy, digital image correlation, micro computational tomography, acoustic emission, and electrical resistance. It focused on the latest research progress in the high-temperature mechanical characterization of SiCf/SiC composites using various in-situ monitoring methods and combinations thereof. It summarized the challenges in the in-situ monitoring technologies of SiCf/SiC composites under high-temperature environments and provided a preliminary outlook on the future development directions, such as the combined use of multiple in-situ monitoring techniques, new detection technologies like terahertz radiation, and in-situ damage monitoring methods for complex components.

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    Xiaochen WU, Ruixiao ZHENG, Lu LI, Haolin MA, Peihang ZHAO, Chaoli MA. Research Progress on In-situ Monitoring of Damage Behavior of SiCf/SiC Ceramic Matrix Composites at High Temperature Environments [J]. Journal of Inorganic Materials, 2024, 39(6): 609

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    Paper Information

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    Received: Dec. 18, 2023

    Accepted: --

    Published Online: Jul. 31, 2024

    The Author Email: ZHENG Ruixiao (zhengruixiao@buaa.edu.cn), LI Lu (li_lu@buaa.edu.cn)

    DOI:10.15541/jim20230581

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