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Title: The Reduction of the Critical Currents in Nb3Sn Cables under Transverse Loads

Abstract

The degradation of the critical current of impregnated Rutherford type Nb{sub 3}Sn cables is investigated as a function of the applied transverse load and magnetic field. The cable is made of TWCA modified jelly-roll type strand material and has a keystone angle of 1.0 degree. The voltage-current characteristics are determined for the magnetic field ranging from 2 to 11 tesla and transverse pressure up to 250 MPa on the cable surface. It is found that the 48-strand cable, made of strands with 6 elements in the matrix, shows a larger critical current degradation than the 26-strand cable with 36 elements per strand. The global degradation of the 48-strand cable is 63% at 150 MPa, and 40% at 150 MPa for the 26-strand cable. Micro-analysis of the cross-section shows permanent damage to the sharp edge of the cable. The influence of the keystone angle on the critical-current degradation is currently under investigation.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Accelerator& Fusion Research Division
OSTI Identifier:
1001346
Report Number(s):
LBL-32070
TRN: US201102%%108
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: 1992 Applied Superconductivity Conference, Chicago, IL, August 23-29, 1992
Country of Publication:
United States
Language:
English
Subject:
99; CABLES; CRITICAL CURRENT; MAGNETIC FIELDS; SUPERCONDUCTIVITY

Citation Formats

Van Oort, J M, Scanlan, R M, Weijers, H W, Wessel, S, and Ten Kate, H H.J. The Reduction of the Critical Currents in Nb3Sn Cables under Transverse Loads. United States: N. p., 1992. Web.
Van Oort, J M, Scanlan, R M, Weijers, H W, Wessel, S, & Ten Kate, H H.J. The Reduction of the Critical Currents in Nb3Sn Cables under Transverse Loads. United States.
Van Oort, J M, Scanlan, R M, Weijers, H W, Wessel, S, and Ten Kate, H H.J. 1992. "The Reduction of the Critical Currents in Nb3Sn Cables under Transverse Loads". United States. https://www.osti.gov/servlets/purl/1001346.
@article{osti_1001346,
title = {The Reduction of the Critical Currents in Nb3Sn Cables under Transverse Loads},
author = {Van Oort, J M and Scanlan, R M and Weijers, H W and Wessel, S and Ten Kate, H H.J.},
abstractNote = {The degradation of the critical current of impregnated Rutherford type Nb{sub 3}Sn cables is investigated as a function of the applied transverse load and magnetic field. The cable is made of TWCA modified jelly-roll type strand material and has a keystone angle of 1.0 degree. The voltage-current characteristics are determined for the magnetic field ranging from 2 to 11 tesla and transverse pressure up to 250 MPa on the cable surface. It is found that the 48-strand cable, made of strands with 6 elements in the matrix, shows a larger critical current degradation than the 26-strand cable with 36 elements per strand. The global degradation of the 48-strand cable is 63% at 150 MPa, and 40% at 150 MPa for the 26-strand cable. Micro-analysis of the cross-section shows permanent damage to the sharp edge of the cable. The influence of the keystone angle on the critical-current degradation is currently under investigation.},
doi = {},
url = {https://www.osti.gov/biblio/1001346}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {8}
}

Conference:
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