کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8022311 1517281 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Segregation driven by collision and coagulation of minor droplets in Al-Bi immiscible alloys under aerodynamic levitation condition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Segregation driven by collision and coagulation of minor droplets in Al-Bi immiscible alloys under aerodynamic levitation condition
چکیده انگلیسی
The effect of collision and coagulation of minor droplets in Al-Bi immiscible alloys under aerodynamic levitation condition on the segregation structure was investigated. It was shown that the minor droplets were dominated by Marangoni motion at the initial stage of the liquid phase separation, while the centrifugal and Stokes motions were strengthened gradually with increasing the droplets radius. Analysis reveals that three segregation morphologies with Al/Bi core-shell structures can be obtained by controlling the cooling rate under aerodynamic levitation. The dimensionless average droplet radius, which characterizes the coagulation degree of minor droplets, increases rapidly with time and dramatically with the minor droplet radius.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 107, 15 September 2013, Pages 340-343
نویسندگان
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