کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1582774 1514872 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage mechanisms of SiC-coated C/C composites subjected to cyclic loading in combustion gas environment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Damage mechanisms of SiC-coated C/C composites subjected to cyclic loading in combustion gas environment
چکیده انگلیسی

A SiC-coated C/C composite was subjected to cyclic loading in a combustion wind tunnel with flame temperature of 1300 °C. Both the ratchetting strain and hysteresis changes showed that the majority of damage was produced in the first 50 cycles, and then the rate of damage accumulation gradually approached a steady value as the cycles proceeded. Lamellar structure of the C/C composite was observed after oxidation, which was caused by the difference in reactivity between the carbon fiber and carbon matrix. Acoustic emission activities throughout the tensile tests of the cycled specimens showed that little damage was produced before the applied tensile load exceeded the maximum history load of the cyclic loading tests.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 486, Issues 1–2, 15 July 2008, Pages 511–516
نویسندگان
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