کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1817849 | 1525718 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and properties of kilometer level, Nb reinforced, 6 filamentary MgB2 wires
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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چکیده انگلیسی
Kilometer level 6 + 1 filamentary MgB2 wires sheathed with Nb/Cu composite tube was fabricated by in situ powder-in-tube (PIT) method, nonferromagnetic Nb was employed as the centre reinforced materials. There is no any annealing in the whole fabrication process due to the excellent ductility of Nb/Cu based tube. The (Mg, B)/Nb/Cu composite wire was fabricated to the target size of 1.4 mm in diameter and heat treated at 680 °C for 2 h in a vacuum furnace. Microstructure, superconductivity, mechanical properties and homogeneity of critical current were measured respectively. The transport engineering critical current density (Jce) reaches 2.5 Ã 104 A/cm2 at 20 K, 1 T. The results show a good potential to fabricate high performance MgB2 wires at ambient pressure for practical application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 494, 15 November 2013, Pages 177-180
Journal: Physica C: Superconductivity - Volume 494, 15 November 2013, Pages 177-180
نویسندگان
C.S. Li, G. Yan, Q.Y. Wang, G.F. Jiao, A. Sulpice, F. Yang, X.M. Xiong, G.Q. Liu, J.Q. Feng, Y. Feng, P.X. Zhang,