کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1483338 1510534 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Axial (helical) substructures determined by the root lattice E8 as generating clusters of the condensed phases
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Axial (helical) substructures determined by the root lattice E8 as generating clusters of the condensed phases
چکیده انگلیسی
The most complete symmetry description of the close-packed structures can be achieved by the use of the 8-dimensional root lattice E8 which determines the {3, 3, 5} polytope (4-dimensional counterpart of an icosahedron). The helix substructure of the {3, 3, 5} polytope can be delineated when the centers of the icosahedra form the 15/4 spiral. The topologically equivalent helix is realized in the structure of the A13 type (β-Mn). The hypothesis is put forward that melting of metals is realized as the transformation from the periodic crystalline packing to the non-periodical helix packing described by a non-classical symmetry axis. Experimental evidences for this hypothesis are indicated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 32–40, 15 October 2007, Pages 3279-3284
نویسندگان
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