NbTi superconductors with variable compositions produced by diffusion reaction of niobium and titanium sheets

Baohai Xie; Xiaozu Wu; Zili Chen; Xianghong Liu; Baoquan Fu; Xiaodong Yang; Lian Zhou

NbTi superconductors with variable compositions produced by diffusion reaction of niobium and titanium sheets

Baohai Xie, Xiaozu Wu, Zili Chen, Xianghong Liu, Baoquan Fu, Xiaodong Yang, Lian Zhou

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Three different compositions of NbTi wires have been fabricated by using alternately pure Nb and Ti sheets with Ti contents from 42.5% to 56.6% by adjusting the relative thickness of the Nb and Ti sheets in the monofilaments. Two kinds of heating treatments were discussed and the Nb/Ti interface microstructure and diffusion morphology of cross-section have been investigated by scanning electron microscopy (SEM). The results show that the J_c values are 2800 A/mm² at 5 T/4.2K and 4200 A/mm² at 3 T/4.2 K. With the increase of Ti content, Jc is higher at low magnetic fields (< 5 T), but lower and decreasing rapidly at high magnetic fields. J_c decreases slight slowly for the lower Ti samples. At a given temperature, higher J_c can be gotten by using shorter time of heat treatment for the higher Ti samples, and by using longer.

Original language	English
Pages (from-to)	876-880
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	34
Issue number	6
State	Published - Jun 2005
Externally published	Yes

Keywords

Critical current densities (J)
Diffusion reaction
Heat treatment
NbTi superconductor

Cite this

@article{c2bdb64db6714333b7f2ab0d2922047c,

title = "NbTi superconductors with variable compositions produced by diffusion reaction of niobium and titanium sheets",

abstract = "Three different compositions of NbTi wires have been fabricated by using alternately pure Nb and Ti sheets with Ti contents from 42.5% to 56.6% by adjusting the relative thickness of the Nb and Ti sheets in the monofilaments. Two kinds of heating treatments were discussed and the Nb/Ti interface microstructure and diffusion morphology of cross-section have been investigated by scanning electron microscopy (SEM). The results show that the Jc values are 2800 A/mm2 at 5 T/4.2K and 4200 A/mm2 at 3 T/4.2 K. With the increase of Ti content, Jc is higher at low magnetic fields (< 5 T), but lower and decreasing rapidly at high magnetic fields. Jc decreases slight slowly for the lower Ti samples. At a given temperature, higher Jc can be gotten by using shorter time of heat treatment for the higher Ti samples, and by using longer.",

keywords = "Critical current densities (J), Diffusion reaction, Heat treatment, NbTi superconductor",

author = "Baohai Xie and Xiaozu Wu and Zili Chen and Xianghong Liu and Baoquan Fu and Xiaodong Yang and Lian Zhou",

year = "2005",

month = jun,

language = "英语",

volume = "34",

pages = "876--880",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "6",

}

TY - JOUR

T1 - NbTi superconductors with variable compositions produced by diffusion reaction of niobium and titanium sheets

AU - Xie, Baohai

AU - Wu, Xiaozu

AU - Chen, Zili

AU - Liu, Xianghong

AU - Fu, Baoquan

AU - Yang, Xiaodong

AU - Zhou, Lian

PY - 2005/6

Y1 - 2005/6

N2 - Three different compositions of NbTi wires have been fabricated by using alternately pure Nb and Ti sheets with Ti contents from 42.5% to 56.6% by adjusting the relative thickness of the Nb and Ti sheets in the monofilaments. Two kinds of heating treatments were discussed and the Nb/Ti interface microstructure and diffusion morphology of cross-section have been investigated by scanning electron microscopy (SEM). The results show that the Jc values are 2800 A/mm2 at 5 T/4.2K and 4200 A/mm2 at 3 T/4.2 K. With the increase of Ti content, Jc is higher at low magnetic fields (< 5 T), but lower and decreasing rapidly at high magnetic fields. Jc decreases slight slowly for the lower Ti samples. At a given temperature, higher Jc can be gotten by using shorter time of heat treatment for the higher Ti samples, and by using longer.

AB - Three different compositions of NbTi wires have been fabricated by using alternately pure Nb and Ti sheets with Ti contents from 42.5% to 56.6% by adjusting the relative thickness of the Nb and Ti sheets in the monofilaments. Two kinds of heating treatments were discussed and the Nb/Ti interface microstructure and diffusion morphology of cross-section have been investigated by scanning electron microscopy (SEM). The results show that the Jc values are 2800 A/mm2 at 5 T/4.2K and 4200 A/mm2 at 3 T/4.2 K. With the increase of Ti content, Jc is higher at low magnetic fields (< 5 T), but lower and decreasing rapidly at high magnetic fields. Jc decreases slight slowly for the lower Ti samples. At a given temperature, higher Jc can be gotten by using shorter time of heat treatment for the higher Ti samples, and by using longer.

KW - Critical current densities (J)

KW - Diffusion reaction

KW - Heat treatment

KW - NbTi superconductor

UR - http://www.scopus.com/inward/record.url?scp=22044451855&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:22044451855

SN - 1002-185X

VL - 34

SP - 876

EP - 880

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 6

ER -

NbTi superconductors with variable compositions produced by diffusion reaction of niobium and titanium sheets

Abstract

Keywords

Other files and links

Fingerprint

Cite this