کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1818843 | 1026036 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Higher borides and oxygen-enriched Mg-B-O inclusions as possible pinning centers in nanostructural magnesium diboride and the influence of additives on their formation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The study of high pressure (2Â GPa) synthesized MgB2-based materials allows us to conclude that higher borides (with near MgB12 stoichiometry) and oxygen-enriched Mg-B-O inclusions can be pinning centers in nanostructural magnesium diboride matrix (with average grain sizes of 15-37Â nm). It has been established that additions of Ti or SiC as well as manufacturing temperature can affect the size, amount and distribution of these inclusions in the material structure and thus, influence critical current density. The superconducting behavior of materials with near MgB12 stoichiometry of matrix is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 470, Issue 19, 1 October 2010, Pages 935-938
Journal: Physica C: Superconductivity - Volume 470, Issue 19, 1 October 2010, Pages 935-938
نویسندگان
Tatiana Prikhna, Wolfgang Gawalek, Yaroslav Savchuk, Vasiliy Tkach, Nikolay Danilenko, Michael Wendt, Jan Dellith, Harold Weber, Michael Eisterer, Viktor Moshchil, Nina Sergienko, Artem Kozyrev, Peter Nagorny, Andrey Shapovalov, Vladimir Melnikov,