کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1584494 | 1514901 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aluminium carbide formation in interpenetrating graphite/aluminium composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We have produced interpenetrating graphite/aluminium composites by gas pressure infiltration of aluminium alloys with varying silicon content into porous graphite preforms. Infiltration experiments at 750 °C have shown that a silicon content of up to 18 wt.% can reduce the formation of aluminium carbide but cannot completely deter it. Optical and scanning electron microscopy revealed numerous lath-like interfacial aluminium carbide crystals in the μm regime which, however, did not affect the flexural strength of our composites. Severe aluminium carbide degradation was observed within a few days on composites exposed to ambient conditions. Carbide-free composites were produced by reducing the infiltration temperature to 670 °C for the eutectic alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 448, Issues 1â2, 15 March 2007, Pages 1-6
Journal: Materials Science and Engineering: A - Volume 448, Issues 1â2, 15 March 2007, Pages 1-6
نویسندگان
T. Etter, P. Schulz, M. Weber, J. Metz, M. Wimmler, J.F. Löffler, P.J. Uggowitzer,