Effect of nano-C doping on the critical current density and flux pinning of MgB2 tapes

	Effect of nano-C doping on the critical current density and flux pinning of MgB2 tapes
	Ma YW(马衍伟)
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2007
通讯作者	马衍伟
中文摘要	Nano-C doped Fe-sheathed MgB2 tapes with different doping levels were fabricated using a powder-in-tube method and an in situ reaction. The effects of nano-C doping on the transition critical temperature, microstructure, critical current density, and flux pinning of MgB2 tapes were studied. Compared to the undoped tapes, critical current density J(c) for all the C-doped samples with different doping level was enhanced by more than an order of magnitude in magnetic fields above 10 T. This result indicates that flux pinning was effectively enhanced by the nano-C doping. Highly dispersed nanoparticles; and the substitutions of B by C are proposed to be responsible for the improvement of J(c) -B properties.
学科主题	材料合成与加工工艺
收录类别	1
公开日期	2010-09-29
附注	Nano-C doped Fe-sheathed MgB2 tapes with different doping levels were fabricated using a powder-in-tube method and an in situ reaction. The effects of nano-C doping on the transition critical temperature, microstructure, critical current density, and flux pinning of MgB2 tapes were studied. Compared to the undoped tapes, critical current density J(c) for all the C-doped samples with different doping level was enhanced by more than an order of magnitude in magnetic fields above 10 T. This result indicates that flux pinning was effectively enhanced by the nano-C doping. Highly dispersed nanoparticles; and the substitutions of B by C are proposed to be responsible for the improvement of J(c) -B properties.
内容类型	期刊论文
源URL	[http://ir.iee.ac.cn/handle/311042/391]
专题	电工研究所_超导材料及强磁场科学研究组_超导材料及强磁场科学研究组_期刊论文
推荐引用方式 GB/T 7714	Ma YW. Effect of nano-C doping on the critical current density and flux pinning of MgB2 tapes[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2007.
APA	马衍伟.(2007).Effect of nano-C doping on the critical current density and flux pinning of MgB2 tapes.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY.
MLA	马衍伟."Effect of nano-C doping on the critical current density and flux pinning of MgB2 tapes".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY (2007).