کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1473658 991053 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tensile strength distribution of all-oxide ceramic matrix mini-composites with porous alumina matrix phase
ترجمه فارسی عنوان
توزیع استحکام کششی مینی کامپوزیت های ماتریکس سرامیک با ماتریس متخلخل آلومینا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

The mechanical behaviour of all-oxide ceramic matrix mini-composites with porous alumina matrix phase was investigated by performing uniaxial tensile tests on specimens with different gauge lengths. The specimens were fabricated from Nextel™ 610 fibres by slurry infiltration and subsequent sintering at 1300 °C for 1 h.The stress–strain curves of the tested mini-composites revealed that the porous alumina matrix phase accumulates damage with increasing tensile load, but continues to contribute to the mini-composites’ tensile stiffness until ultimate failure occurs. A dependence of the tested mini-composites’ axial tensile strength on gauge length was not observed. The mean stress in the fibres at mini-composite failure was found to decrease with increasing matrix volume fraction, indicating that the cause of ultimate failure of the mini-composites can be attributed to the propagation of matrix cracks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 36, Issue 13, October 2016, Pages 3185–3191
نویسندگان
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