کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7898491 | 1510137 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparative study of static and cyclic fatigue of ZrB2-SiC ceramic composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Room temperature static and cyclic fatigue of ZrB2-32â¯vol% SiC and ZrB2-45â¯vol% SiC particulate ceramic composites has been studied. It was established that the presence of grain bridging plays an important role in the lifetime and time dependent mechanical performance of ZrB2-SiC composites. It was also established that the cohesive strength of grain boundaries of the composites was a determining factor if grain bridging would occur during crack growth, as the grain boundaries strength would determine the pathway of the moving crack. Grain bridging was limited in ZrB2-32â¯vol% SiC leading to the absence of a cyclic fatigue effect, while grain bridging indeed occurred in ZrB2-45â¯vol%SiC contributing to a cyclic fatigue effect which limits the lifetime of the composite. Such differences were responsible for the occurrence of R-curve behavior in ZrB2-SiC ceramic composites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 4, April 2018, Pages 1128-1135
Journal: Journal of the European Ceramic Society - Volume 38, Issue 4, April 2018, Pages 1128-1135
نویسندگان
M. Lugovy, N. Orlovskaya, V. Slyunyayev, E. Mitrentsis, M. Neumann, C.G. Aneziris, H. Jelitto, G.A. Schneider, J. Kuebler,