کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1819924 | 1525771 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Doping and effect of nano-diamond and carbon-nanotubes on flux pinning properties of MgB2
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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
Doping effects of two types of nano-carbons: nano-diamond and carbon-nanotubes (CNTs), on the flux pinning properties of MgB2 bulk materials have been studied. Compared with nano-diamond, CNTs is prone to be doped into MgB2 lattice. Nano-diamond doping improves Jc(H) characteristics more significantly than CNTs doping in MgB2. TEM analysis reveals a unique microstructure in diamond-doped MgB2, which consists of tightly packed MgB2 nanograins (50-100Â nm) with dense distribution of diamond nanoparticles (10-20Â nm) inside the grains. Relatively, such a unique microstructure is not easy to form in CNTs-doped MgB2 due to an active reaction between CNTs and MgB2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volumes 463â465, 1 October 2007, Pages 165-169
Journal: Physica C: Superconductivity and its Applications - Volumes 463â465, 1 October 2007, Pages 165-169
نویسندگان
Y. Zhao, Y. Yang, C.H. Cheng, Y. Zhang,