کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
818337 1469438 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of diamond/aluminum composites by vacuum hot pressing: Process optimization and thermal properties
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Fabrication of diamond/aluminum composites by vacuum hot pressing: Process optimization and thermal properties
چکیده انگلیسی
Diamond/Al composites were prepared by vacuum hot pressing (VHP) to get high thermal properties. The sintering temperature, pressure and time in the VHP process were optimized. Microstructures, thermal properties, interface reaction product and its effect on the properties of the composites were investigated. The result shows that the sintering temperature and time are key parameters to get high thermal property of the composites. The composites with 20-55 vol% diamond sintered at 650 °C for 90 min under a pressure of 67 MPa exhibit thermal conductivities of 320-567 W/mK, over 90% of the theoretical predictions by the differential effective medium (DEM) scheme. The high thermal conductivity is attributed to the favorable interface conductance, while the formation of aluminum carbide at diamond-Al interface is found to be negative.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 47, April 2013, Pages 173-180
نویسندگان
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