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SiC/SiC复合材料失效行为研究进展
Research progress on the failure behavior of SiC/SiC composites

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齐哲 1   郎旭东 2   赵春玲 2   杨金华 1   刘虎 1   陆子龙 1   王雅娜 3   焦健 1 *  
文摘 连续碳化硅(SiC)纤维增韧的SiC/SiC复合材料由连续SiC纤维、界面层和SiC基体组成,具有高强度、高韧性、低密度、耐高温、抗氧化等一系列优异性能,是理想的航空发动机和燃气轮机热端构件材料。在力、热、水、氧、燃气冲刷、异物冲击等多种因素的影响下,SiC/SiC复合材料具有复杂的断裂和腐蚀失效行为。随着SiC/SiC复合材料的广泛应用,针对其疲劳和蠕变失效机制的研究变得越来越重要。近年来,声发射、数字图像相关、电阻监测、原位CT和SEM等新的检测手段在SiC/SiC复合材料上的应用,有助于进一步阐明其在力学实验中裂纹萌生和发展过程以及发生最终破坏的机理。
其他语种文摘 Continuous silicon carbide (SiC) fiber toughened SiC/SiC composites are composed of continuous SiC tows, interphase and SiC matrix. They possess a series of excellent properties such as high strength, high stiffness, low density, high-temperature resistance and oxidation resistance. They are the ideal materials for hot-section components of aero engines and land-based gas turbines. Under the influence of load, heat, vapor and oxidants, as well as the impact of gas and foreign matter, SiC/SiC composites have complex rupture and erosion failure modes. As SiC/SiC composites are being applied more extensively, the research on the failure mechanism because of fatigue and creep is becoming more and more important. The application of new characterization methods, such as acoustic emission, digital image correlation, electric resistance monitoring, in-situ CT and SEM on the SiC/SiC composites in recent years could facilitate the illumination of the damage evolution and failure mechanism during mechanism tests.
来源 航空材料学报 ,2021,41(3):25-35 【核心库】
DOI 10.11868/j.issn.1005-5053.2021.000052
关键词 碳化硅 ; 复合材料 ; 损伤演化 ; 失效
地址

1. 中国航发北京航空材料研究院, 先进复合材料国防科技重点实验室, 北京, 100095  

2. 中国航发湖南动力机械研究所, 湖南, 株洲, 412002  

3. 中国航发北京航空材料研究院, 航空材料检测与评价北京市重点实验室, 北京, 100095

语种 中文
文献类型 综述型
ISSN 1005-5053
学科 一般工业技术
文献收藏号 CSCD:6988490

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