Phthalocyanine doping to improve critical current densities in MgB2 tapes

	Phthalocyanine doping to improve critical current densities in MgB2 tapes
	Ma YW(马衍伟)
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	2009
通讯作者	马衍伟
中文摘要	Phthalocyanine-doped MgB2 tapes were prepared by the in situ powder-in-tube method. The relationships between the critical current properties, crystallinity and microstructure were studied as a function of the phthalocyanine doping level. It is found that both H-irr and H-c2 were improved when MgB2 samples were doped with phthalocyanine, which are mainly attributed to the effective carbon substitution and enhanced flux pinning strength caused by very fine grain sizes. Furthermore, compared to pure samples, the MgO content remained almost unchanged in all doped tapes, which is very beneficial to having better grain connectivity in MgB2. Significantly improved J(c) was obtained in the phthalocyanine-doped MgB2 tapes, especially under high magnetic fields.
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	Phthalocyanine-doped MgB2 tapes were prepared by the in situ powder-in-tube method. The relationships between the critical current properties, crystallinity and microstructure were studied as a function of the phthalocyanine doping level. It is found that both H-irr and H-c2 were improved when MgB2 samples were doped with phthalocyanine, which are mainly attributed to the effective carbon substitution and enhanced flux pinning strength caused by very fine grain sizes. Furthermore, compared to pure samples, the MgO content remained almost unchanged in all doped tapes, which is very beneficial to having better grain connectivity in MgB2. Significantly improved J(c) was obtained in the phthalocyanine-doped MgB2 tapes, especially under high magnetic fields.
内容类型	期刊论文
源URL	[http://ir.iee.ac.cn/handle/311042/337]
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. Phthalocyanine doping to improve critical current densities in MgB2 tapes[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2009.
APA	马衍伟.(2009).Phthalocyanine doping to improve critical current densities in MgB2 tapes.SUPERCONDUCTOR SCIENCE & TECHNOLOGY.
MLA	马衍伟."Phthalocyanine doping to improve critical current densities in MgB2 tapes".SUPERCONDUCTOR SCIENCE & TECHNOLOGY (2009).