کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1582869 1514879 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterisation of metal powders generated by a pressure-gas-atomiser
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Characterisation of metal powders generated by a pressure-gas-atomiser
چکیده انگلیسی

Pressure-gas-atomisation is a relatively new method to produce metal powder by combining two atomisation principles. First, a liquid hollow cone film is created by a pressure-swirl-atomiser which is subsequently atomised by concentric gas jets to produce fine spherical droplets. Normally, gas atomised powder shows droplets with a lot of satellites sticking on the droplets surface. Avoiding those satellites needs a reduction of circulating gas flow inside the spray chamber. Pure molten tin was used to study the characteristics of this type of melt atomisation. The powders were analysed by laser diffraction and scanning electron microscopy. The results show the effect of atomiser design, gas-to-metal ratio, melt superheat, and gas recirculation on the mass median diameter, the geometric standard deviation, and the particle shape.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 477, Issues 1–2, 25 March 2008, Pages 15–20
نویسندگان
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