کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8040937 | 1518665 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructural development and helium bubble formation in Cu/W(Re) nanometer multilayer films irradiated by He+ ion
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
A series of 60Â keV He+ implantations was conducted on Cu/W(Re, 5.9Â at.%) multilayered structures with ion doses from 5Â ÃÂ 1019 to 5Â ÃÂ 1021Â m2 under different temperature. Three distinct, temperature-dependent He release mechanisms were found by subsequent X-ray diffraction (XRD) and scanning electron microscope (SEM) investigations. Firstly, with implantation at 300Â K (about T/Tm (Cu)Â =Â 0.22), a certain degree of blistering was observed with a critical dose higher than 5Â ÃÂ 1021Â mâ2. But, at higher temperature irradiation (about T/Tm (Cu)Â =Â 0.35), samples implanted were characterized by extensive blisters at the dose of 2Â ÃÂ 1021Â mâ2. Finally, at 673Â K (about T/Tm (Cu)Â =Â 0.5), the specimen flaked and a rough, porous surface formed when the dose was higher than 1Â ÃÂ 1021Â mâ2. The mechanisms involved have been analyzed based on the detailed characterization studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 354, 1 July 2015, Pages 244-248
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 354, 1 July 2015, Pages 244-248
نویسندگان
Shunli Chen, Bo Liu, Liwei Lin, Guohua Jiao,