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Title: Temperature dependences of superconducting critical current density and upper critical field for V/sub 2/(Hf,Zr) multifilamentary wire

Abstract

The temperature dependences of the critical current density, J /SUB c/ , and the upper critical field, uH /SUB c2/ , have been studied for newly developed V/sub 2/(Hf,Zr) multifilamentary wires. At 4.2 K, a ..mu..H /SUB c2/ of 22 T and an overall J /SUB c/ of 1 x 10/sup 4/ A/cm/sup 2/ at 17 T are obtained for these wires. At 1.8 K, overall J /SUB c/ in 15 T of these wires are twice as large as that of the bronze-processed Nb/sub 3/Sn multifilamentary wire. The enhanced J /SUB c/ at reduced temperatures may be attributed to the rapid increase in ..mu..H /SUB c2/ by using the temperature scaling law of the pinning force density. ..mu..H /SUB c2/ measured in pulsed fields is about 28 T at 2.0 K. According to the temperature scaling law, the overall J /SUB c/ for 1.8 K and at 20 T is estimated to be 2 x 10/sup 4/ A/cm/sup 2/. Thus, the present V/sup 2/(Hf,Zr) multifilamentary wires are very promising for use of generating high magnetic fields in the superfluid liquid helium environment.

Authors:
; ;
Publication Date:
Research Org.:
National Research Institute for Metals, Sakuramura, Niiharigun, Ibaraki
OSTI Identifier:
6485502
Report Number(s):
CONF-840937-
Journal ID: CODEN: IEMGA
Resource Type:
Conference
Journal Name:
IEEE Trans. Magn.; (United States)
Additional Journal Information:
Journal Volume: MAG-21:2; Conference: Applied superconductivity conference, San Diego, CA, USA, 9 Sep 1984
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SUPERCONDUCTING WIRES; CRITICAL FIELD; CURRENT DENSITY; CRITICAL CURRENT; HAFNIUM ALLOYS; NIOBIUM ALLOYS; SCALING LAWS; TEMPERATURE DEPENDENCE; TIN ALLOYS; VANADIUM ALLOYS; ZIRCONIUM ALLOYS; ALLOYS; CURRENTS; ELECTRIC CURRENTS; MAGNETIC FIELDS; WIRES; 420201* - Engineering- Cryogenic Equipment & Devices

Citation Formats

Inoue, K, Kuroda, T, and Tachikawa, K. Temperature dependences of superconducting critical current density and upper critical field for V/sub 2/(Hf,Zr) multifilamentary wire. United States: N. p., 1985. Web.
Inoue, K, Kuroda, T, & Tachikawa, K. Temperature dependences of superconducting critical current density and upper critical field for V/sub 2/(Hf,Zr) multifilamentary wire. United States.
Inoue, K, Kuroda, T, and Tachikawa, K. 1985. "Temperature dependences of superconducting critical current density and upper critical field for V/sub 2/(Hf,Zr) multifilamentary wire". United States.
@article{osti_6485502,
title = {Temperature dependences of superconducting critical current density and upper critical field for V/sub 2/(Hf,Zr) multifilamentary wire},
author = {Inoue, K and Kuroda, T and Tachikawa, K},
abstractNote = {The temperature dependences of the critical current density, J /SUB c/ , and the upper critical field, uH /SUB c2/ , have been studied for newly developed V/sub 2/(Hf,Zr) multifilamentary wires. At 4.2 K, a ..mu..H /SUB c2/ of 22 T and an overall J /SUB c/ of 1 x 10/sup 4/ A/cm/sup 2/ at 17 T are obtained for these wires. At 1.8 K, overall J /SUB c/ in 15 T of these wires are twice as large as that of the bronze-processed Nb/sub 3/Sn multifilamentary wire. The enhanced J /SUB c/ at reduced temperatures may be attributed to the rapid increase in ..mu..H /SUB c2/ by using the temperature scaling law of the pinning force density. ..mu..H /SUB c2/ measured in pulsed fields is about 28 T at 2.0 K. According to the temperature scaling law, the overall J /SUB c/ for 1.8 K and at 20 T is estimated to be 2 x 10/sup 4/ A/cm/sup 2/. Thus, the present V/sup 2/(Hf,Zr) multifilamentary wires are very promising for use of generating high magnetic fields in the superfluid liquid helium environment.},
doi = {},
url = {https://www.osti.gov/biblio/6485502}, journal = {IEEE Trans. Magn.; (United States)},
number = ,
volume = MAG-21:2,
place = {United States},
year = {Fri Mar 01 00:00:00 EST 1985},
month = {Fri Mar 01 00:00:00 EST 1985}
}

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