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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Lifshitz calculations of Hamaker constants for fusion relevant materials
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
نویسندگان
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