激光载荷下2.5D-C/SiC复合材料的形态演化及内部应变成像

IF 5.5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2025-09-17 DOI:10.1016/j.matchar.2025.115553

Zhenkui Chen , Wei Li , Yi Ma , Yiping Yu , Rengeng Li , Song Wang

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引用次数: 0

摘要

在航空航天主动热防护领域，C/SiC复合材料作为蒸腾冷却多孔材料的研究日益受到关注。研究了激光载荷下2.5D-C/SiC复合材料的微观组织演化行为，利用DVC技术分析了材料微观组织内热变形的应力-应变特征，研究了微观组织演化对2.5D-C/SiC复合材料蒸腾冷性能的影响。研究结果表明，通过CT扫描获得的图像像素灰度值可以定性地评估2.5D-C/SiC复合材料成分的变化。采用原位CT扫描和DVC技术分析了2.5D-C/SiC复合材料的微观结构演变过程。微观组织演变对2.5D-C/SiC复合材料蒸腾冷却性能的影响是显著的。

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Morphological evolution and internal strain mapping of 2.5D-C/SiC composite materials under laser load using X-CT and digital volume correlation

In the field of active thermal protection in aerospace, the research on C/SiC composites as transpiration cooling porous materials has garnered increasing attention. This paper examines the microstructural evolution behavior of 2.5D-C/SiC composites under laser load, employs DVC technology to analyze the stress-strain characteristics of thermal deformation within the material's microstructure, and investigates the impact of microstructural evolution on the transpiration cooling properties of 2.5D-C/SiC composites. The research findings indicate that image pixel grayscale values obtained via CT scanning can qualitatively assess changes in the composition of 2.5D-C/SiC composites. The evolution process of the microstructure of 2.5D-C/SiC composites can be analyzed using in-situ CT scanning and DVC technology. The impact of microstructural evolution on the transpiration cooling performance of 2.5D-C/SiC composites is significant.

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来源期刊

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.