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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Aluminium carbide formation in interpenetrating graphite/aluminium composites
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 1–2, 15 March 2007, Pages 1-6
نویسندگان
, , , , , , ,