کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1622936 1516405 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anomalous growth of whisker-like bismuth–tin extrusions from tin-enriched tin–Bi deposits
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Anomalous growth of whisker-like bismuth–tin extrusions from tin-enriched tin–Bi deposits
چکیده انگلیسی

This article shows the first finding that the anomalous growth of Bi–Sn extrusions from tin-enriched alloys (Sn–xBi with x between 20 and 10 wt.%) can be induced by post-plating annealing in N2 between 145 and 260 °C for 10 min although metal whiskers were commonly formed on the surface of pure metals or alloys of the enriched component. From SEM observations, very similar to Sn whiskers, Bi–Sn extrusions vary in size, shape, length, and diameter with changing the annealing temperature, which are highly important in regarding the potential for failure of electronic products. Annealing resulting in thermal expansion of Sn grains is believed to squeeze the Bi–Sn alloys with relatively low melting points to form whisker-like extrusions although the exact mechanism is unclear.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 472, Issues 1–2, 20 March 2009, Pages 121–126
نویسندگان
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