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首页> 外文会议>International Conference on Advanced Ceramics and Composites >THE EFFECT OF HOLES ON THE RESIDUAL STRENGTH OF SIC/SIC CERAMIC COMPOSITES
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THE EFFECT OF HOLES ON THE RESIDUAL STRENGTH OF SIC/SIC CERAMIC COMPOSITES

机译：孔对SiC / SiC陶瓷复合材料残余强度的影响

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摘要

Continued interest in ceramic matrix composites for the use in high temperature applications necessitates a comprehensive understanding of the effect of time-dependent loading in various environments on the material's mechanical response. This understanding has to include the effect of structural features, such as holes, on the material performance. In this work, residual strength tests were conducted for samples with 2.286, and 4.572 mm average diameter holes, located at the center of the specimen, after time-dependent experiments conducted in air. Samples were subjected to creep and dwell fatigue tests at 1204 deg C under net-section stresses ranging from 55.16 to 165.48 MPa for durations ranging from 10 to 2400 hours prior to residual strength experiments at room temperature. Data acquired from residual strength testing for samples with holes are analyzed and compared to similar data from standard samples.
机译：对于高温应用的使用，对陶瓷基质复合材料的持续兴趣需要全面了解在材料的机械响应上的各种环境中依赖于时间依赖性加载的影响。这种理解必须包括结构特征（例如孔）的效果在材料性能上。在这项工作中，在空气中进行时间依赖性实验后，对位于标本中心的2.286和4.572mm平均直径孔中进行残留的强度试验。在404℃的净应力下在1204℃下进行样品蠕变，疲劳试验，从55.16-165.48MPa的含量为10-2400小时，在室温下的残余强度实验。分析了从具有孔的样本的残余强度测试中获取的数据与来自标准样品的类似数据进行了分析。

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