کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6742839 | 1429320 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lifshitz calculations of Hamaker constants for fusion relevant materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
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چکیده انگلیسی
The determination of the Hamaker constant is necessary for the quantification of the van der Waals force and thus of dust-wall adhesion. Here Lifshitz theory is employed for the calculation of the non-retarded Hamaker constants of ten common dust-wall material combinations. Extended-in-frequency reliable dielectric data are employed and two independent computational methods are considered for the calculation of the dielectric function at the imaginary Matsubara frequencies. The Hamaker constant for tungsten-on-tungsten is the largest calculated, which implies the strongest adhesion. The Hamaker constant for graphite-on-graphite is much smaller than tungsten-on-tungsten and even beryllium-on-beryllium. Copper, chromium and especially aluminium are identified to be proper adhesive proxies of beryllium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 133, August 2018, Pages 110-116
Journal: Fusion Engineering and Design - Volume 133, August 2018, Pages 110-116
نویسندگان
P. Tolias,