Magnetic property improvement of niobium doped with rare earth elements

doi:10.1088/1674-1056/23/5/057403

中国物理B ›› 2014, Vol. 23 ›› Issue (5): 57403-057403.doi: 10.1088/1674-1056/23/5/057403

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Magnetic property improvement of niobium doped with rare earth elements

江涛^a, 贺斐思^a, 焦飞^a, 何法^a, 鲁向阳^a, 赵夔^a, 赵红运^b, 游雨松^b, 陈林^b

a State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;
b Ningxia Orient Tantalum Industry Co., Ltd., Shizuishan 753000, China

收稿日期:2013-09-20 修回日期:2013-11-17 出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11175008).

Magnetic property improvement of niobium doped with rare earth elements

Jiang Tao (江涛)^a, He Fei-Si (贺斐思)^a, Jiao Fei (焦飞)^a, He Fa (何法)^a, Lu Xiang-Yang (鲁向阳)^a, Zhao Kui (赵夔)^a, Zhao Hong-Yun (赵红运)^b, You Yu-Song (游雨松)^b, Chen Lin (陈林)^b

a State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;
b Ningxia Orient Tantalum Industry Co., Ltd., Shizuishan 753000, China

Received:2013-09-20 Revised:2013-11-17 Online:2014-05-15 Published:2014-05-15
Contact: Jiao Fei E-mail:fjiao@pku.edu.cn
About author:74.70.Ad; 74.25.Op
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11175008).

摘要/Abstract

摘要： A new idea is proposed by the PKU group to improve the magnetic properties of the Type-Ⅱ superconductor niobium. Rare earth elements like scandium and yttrium are doped into ingot niobium during the smelting processes. A series of experiments have been done since 2010. The preliminary testing results show that the magnetic properties of niobium materials have changed with different doping elements and proportions while the superconductive transition temperature does not change very much. This method may increase the superheating magnetic field of niobium so as to improve the performance of the niobium cavity, which is a key component of SRF accelerators. A Tesla-type single-cell cavity made of scandium-doped niobium is being fabricated.

关键词: niobium, rare earth element, impurity, magnetization curve

Abstract: A new idea is proposed by the PKU group to improve the magnetic properties of the Type-Ⅱ superconductor niobium. Rare earth elements like scandium and yttrium are doped into ingot niobium during the smelting processes. A series of experiments have been done since 2010. The preliminary testing results show that the magnetic properties of niobium materials have changed with different doping elements and proportions while the superconductive transition temperature does not change very much. This method may increase the superheating magnetic field of niobium so as to improve the performance of the niobium cavity, which is a key component of SRF accelerators. A Tesla-type single-cell cavity made of scandium-doped niobium is being fabricated.

Key words: niobium, rare earth element, impurity, magnetization curve

中图分类号: (Metals; alloys and binary compounds)

74.70.Ad

74.25.Op (Mixed states, critical fields, and surface sheaths)

江涛, 贺斐思, 焦飞, 何法, 鲁向阳, 赵夔, 赵红运, 游雨松, 陈林. Magnetic property improvement of niobium doped with rare earth elements[J]. 中国物理B, 2014, 23(5): 57403-057403.

Jiang Tao (江涛), He Fei-Si (贺斐思), Jiao Fei (焦飞), He Fa (何法), Lu Xiang-Yang (鲁向阳), Zhao Kui (赵夔), Zhao Hong-Yun (赵红运), You Yu-Song (游雨松), Chen Lin (陈林). Magnetic property improvement of niobium doped with rare earth elements[J]. Chin. Phys. B, 2014, 23(5): 57403-057403.

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Magnetic property improvement of niobium doped with rare earth elements

Magnetic property improvement of niobium doped with rare earth elements

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