کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9567520 1503718 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduction mechanism of surface oxide films and characterization of formations on pulse electric-current sintered Al-Mg alloy powders
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Reduction mechanism of surface oxide films and characterization of formations on pulse electric-current sintered Al-Mg alloy powders
چکیده انگلیسی
The microstructure of interfaces between powder particles in Al-Mg alloy specimens sintered by pulse electric-current sintering (PECS) process was characterized using high resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS). The crystalline precipitates with nano-size in the interface were observed in all of Al-Mg alloy specimens. The composition was determined to be MgAl2O4 or MgO, or both of them, which depended on Mg content in alloy powder and sintering temperature. The precipitates were suggested to contribute to reduction reaction of Mg with oxide films originally covered at powder particles surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 241, Issues 1–2, 28 February 2005, Pages 102-106
نویسندگان
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