کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1479877 991431 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental evaluation onto the damping behavior of Al/SiC/RHA hybrid composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Experimental evaluation onto the damping behavior of Al/SiC/RHA hybrid composites
چکیده انگلیسی

In the present study, the damping behavior of hybrid composites has been investigated using dynamic mechanical analyzer (DMA). The composites were fabricated with 2, 4, 6, and 8% by weight of rice husk ash (RHA) and SiC in equal proportions using two stage stir casting process. Damping measurements of all the specimens were obtained by dynamic mechanical analyzer (DMA) at different frequencies in air atmosphere. Scanning electron microscope (model JSM-6610LV) was used to study the microstructural characterization of the hybrid composites. It was observed that the dislocation density, which results from the thermal mismatch between the reinforcement and the matrix and the porosity of composites, has a great influence on the damping capacity of hybrid composites. The dislocation damping mechanisms were discussed with regards to the Granato–Lucke theory.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Research and Technology - Volume 5, Issue 2, April–June 2016, Pages 123–130
نویسندگان
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