کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1525568 995357 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wetting of polycrystalline W by molten Zr55Al10Ni5Cu30 alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Wetting of polycrystalline W by molten Zr55Al10Ni5Cu30 alloy
چکیده انگلیسی

Wetting of polycrystalline W substrates by a molten Zr55Al10Ni5Cu30 alloy was studied using a modified sessile drop method at 1123–1173 K in high vacuum. Good wettability with final stable contact angles of 4–11° was observed. The Zr adsorption at the solid–liquid interface and further diffusion to the front of the triple line should be the primary reason for the enhanced wettability and the formation of a diffusion band. Moreover, the interfacial microstructure is dictated by temperature. A higher temperature substantially promotes the dissolution of W into the liquid alloy and then precipitation of the W2Zr phase. Accordingly, the processing temperature should be accurately controlled in preparation of the Zr-base bulk metallic glass (BMG) matrix composites reinforced by W particulates or fibers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 115, Issue 1, 15 May 2009, Pages 322–327
نویسندگان
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