کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5350533 | 1503554 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and improved explosion behaviors of aluminum powders coated with nano-sized nickel film
ترجمه فارسی عنوان
سنتز و بهبود رفتارهای انفجاری از پودرهای آلومینیومی پوشش داده شده با نیکل
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کلمات کلیدی
نیکل، آلومینیوم، پودر، نرخ فشار،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
چکیده انگلیسی
Nickel (Ni) materials with a thickness of a few hundred nm were homogeneously coated on the surfaces of aluminum (Al) powders by an electroless plating process. The Ni-coated Al powders show characteristic interfacial structures mixed of Ni, Al and O instead of densely packed Al oxide at the surface. The explosion test of the Ni-coated Al powders utilizing flame ignition showed that the powders had a 3.6 times enhanced pressurization rate of 405Â kPa/ms compared to 111Â kPa/ms of uncoated Al powders. It was found that this is due to a feasible diffusion of oxygen atoms into the Al powders through the thin and rough interfacial layers present at the Ni/Al interface. These results clearly indicate that nano-sized Ni film introduced instead of surface oxide acts as a very profitable layer to achieve efficient combustion behaviors by a rapid oxidation of Al powders.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 415, 1 September 2017, Pages 104-108
Journal: Applied Surface Science - Volume 415, 1 September 2017, Pages 104-108
نویسندگان
Kyung Tae Kim, Dong Won Kim, Soo Hyung Kim, Chang Kee Kim, Yoon Jeong Choi,