کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5348314 | 1388073 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mono-disperse spherical Cu-Zn powder fabricated via the low wettability of liquid/solid interface
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Spherical Cu-Zn alloy powders were fabricated by combining the surface tension of a molten metal with the de-wetting of a metal droplet on a graphite surface. The effect that the gas pressure had on the surface morphology and composition was studied. The Zn concentration can be maintained at 20.18Â wt.%, 15.5Â wt.% and 12.08Â wt.% using 0.22Â MPa, 0.10Â MPa, and 0.04Â MPa, respectively, from a commercially available Cu-38Â wt.%Zn raw material. The gas pressure was adjusted to control the surface volatility of Zn without affecting the spherical morphology, and higher gas pressure yielded less volatile Zn. The Cu-Zn alloy powders were perfectly spherical, even at a negative pressure of 0.04Â MPa. The spherical Cu-Zn alloy particles hardly changed and were fully dense up to Cu-50Â wt.%Zn, which allowed high-quality spherical Cu-Zn alloy powders to potentially serve a large composition range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 357, Part A, 1 December 2015, Pages 167-171
Journal: Applied Surface Science - Volume 357, Part A, 1 December 2015, Pages 167-171
نویسندگان
Chenglong Lei, Haifu Huang, Zhenzhi Cheng, Shaolong Tang, Youwei Du,