The effect of heat treatment on the stability of Nb3Sn RRP-150/169 strands

Li, Pei; Turrioni, Daniele; Barzi, Emanuela; Zlobin, Alexander

doi:10.1109/TASC.2017.2662938

Title: The effect of heat treatment on the stability of Nb₃Sn RRP-150/169 strands

Full Record
Other Related Research

Abstract

Here, the magnetic stability of superconductor strands and cables is a key issue in the successful building and operation of high-field accelerator magnets. In this paper, we report the study of a state-of-the-art 0.7 mm Nb₃Sn restacked-rod-process strand manufactured by Oxford Instrument Superconductor Technology. This conductor will be used in Rutherford cable for a 15-T Nb₃Sn dipole demonstrator being built at Fermi National Accelerator Laboratory. Particularly, this study focuses on the impact of varying heat treatment conditions on the stability of the strand. Both the stability against internal flux jumps and external thermal perturbations are studied.

Authors:

Li, Pei ^[1]; Turrioni, Daniele ^[1]; Barzi, Emanuela ^[1]; Zlobin, Alexander ^[1]

Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Publication Date:: Fri Feb 17 00:00:00 EST 2017

Research Org.:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1343951

Report Number(s):: FERMILAB-CONF-17-032-TD
Journal ID: ISSN 1051-8223; 1513430

Grant/Contract Number:: AC02-07CH11359

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Transactions on Applied Superconductivity

Additional Journal Information:: Journal Volume: 27; Journal Issue: 4; Journal ID: ISSN 1051-8223

Publisher:: Institute of Electrical and Electronics Engineers (IEEE)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Li, Pei, Turrioni, Daniele, Barzi, Emanuela, and Zlobin, Alexander. The effect of heat treatment on the stability of Nb3Sn RRP-150/169 strands.  United States: N. p., 2017. 
Web.  doi:10.1109/TASC.2017.2662938.

Copy to clipboard


                    Li, Pei, Turrioni, Daniele, Barzi, Emanuela, & Zlobin, Alexander. The effect of heat treatment on the stability of Nb3Sn RRP-150/169 strands.  United States.  https://doi.org/10.1109/TASC.2017.2662938

Copy to clipboard


                    Li, Pei, Turrioni, Daniele, Barzi, Emanuela, and Zlobin, Alexander. Fri .  
"The effect of heat treatment on the stability of Nb3Sn RRP-150/169 strands".  United States.  https://doi.org/10.1109/TASC.2017.2662938.  https://www.osti.gov/servlets/purl/1343951.

Copy to clipboard


                    
@article{osti_1343951,

  title        = {The effect of heat treatment on the stability of Nb3Sn RRP-150/169 strands},

  author       = {Li, Pei and Turrioni, Daniele and Barzi, Emanuela and Zlobin, Alexander},

  abstractNote = {Here, the magnetic stability of superconductor strands and cables is a key issue in the successful building and operation of high-field accelerator magnets. In this paper, we report the study of a state-of-the-art 0.7 mm Nb3Sn restacked-rod-process strand manufactured by Oxford Instrument Superconductor Technology. This conductor will be used in Rutherford cable for a 15-T Nb3Sn dipole demonstrator being built at Fermi National Accelerator Laboratory. Particularly, this study focuses on the impact of varying heat treatment conditions on the stability of the strand. Both the stability against internal flux jumps and external thermal perturbations are studied.},

  doi          = {10.1109/TASC.2017.2662938},

  journal      = {IEEE Transactions on Applied Superconductivity},

  number       = 4,

  volume       = 27,

  place        = {United States},

  year         = {Fri Feb 17 00:00:00 EST 2017},

  month        = {Fri Feb 17 00:00:00 EST 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1109/TASC.2017.2662938

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 13 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Performance of Nb3Sn RRP strands and cables based on a 108/127 stack design

Journal Article Barzi, E ; Ambrosio, G ; Andreev, N ; ... - IEEE Trans.Appl.Supercond.17:2718-2721,2007

The high performance Nb{sub 3}Sn strand produced by Oxford Superconducting Technology (OST) with the Restack Rod Process (RRP) is presently considered as a baseline conductor for the Fermilab's accelerator magnet R&D program. To improve the strand stability in the current and field range expected in magnet models, the number of subelements in the strand was increased by a factor of two (from 54 to 108), which resulted in a smaller effective filament size. The performance of the 1.0 and 0.7 mm strands of this design was studied using virgin and deformed strand samples. 27-strand Rutherford cables made of 1 mmmore »« less
Full Text Available
RRP Nb3Sn strand studies for LARP

Journal Article Barzi, Emanuela ; Bossert, Rodger ; /Fermilab ; ... - IEEE Trans.Appl.Supercond.17:2607-2610,2007

The Nb{sub 3}Sn strand chosen for the next step in the magnet R&D of the U.S. LHC Accelerator Research Program is the 54/61 sub-element Restacked Rod Process by Oxford Instruments, Superconducting Technology. To ensure that the 0.7 mm RRP strands to be used in the upcoming LARP magnets are suitable, extensive studies were performed. Measurements included the critical current, {sub e}, using the voltage-current (V-I) method, the stability current, I{sub S}, as the minimal quench current obtained with the voltage-field (V-H) method, and RRR. Magnetization was measured at low and high fields to determine the effective filament size and tomore »« less
Full Text Available
RRP Nb3Sn Strand Studies for LARP

Journal Article Barzi, Emanuela ; Bossert, Rodger ; Caspi, Shlomo ; ... - IEEE Transactions on Applied Superconductivity

The Nb{sub 3}Sn strand chosen for the next step in the magnet R&D of the U.S. LHC Accelerator Research Program is the 54/61 sub-element Restacked Rod Process by Oxford Instruments, Superconducting Technology. To ensure that the 0.7 mm RRP strands to be used in the upcoming LARP magnets are suitable, extensive studies were performed. Measurements included the critical current, I{sub c}, using the voltage-current (V-I) method, the stability current, I{sub S}, as the minimal quench current obtained with the voltage-field (V-H) method, and RRR. Magnetization was measured at low and high fields to determine the effective filament size and tomore »« less
https://doi.org/10.1109/TASC.2007.899579

Full Text Available
Nb₃Sn RRP® strand and Rutherford cable development for a 15 T dipole demonstrator

Journal Article Barzi, E. ; Andreev, N. ; Li, P. ; ... - IEEE Transactions on Applied Superconductivity

Keystoned Rutherford cables made of 28 strands and with a stainless steel core were developed and manufactured using 1 mm Nb3Sn composite wires produced by Oxford Superconducting Technology with 127 and 169 restacks using the Restacked-Rod-Process^®. Furthermore, the performance and properties of these cables were studied to evaluate possible candidates for 15 T accelerator magnets.
Cited by 4
https://doi.org/10.1109/TASC.2016.2535963

Full Text Available
Heat Treatment Optimization of Rutherford Cables for a 15 T Nb₃Sn Dipole Demonstrator

Journal Article Barzi, Emanuela ; Bossert, Marianne ; Field, Michael ; ... - IEEE Transactions on Applied Superconductivity

FNAL has been developing a 15 T Nb₃Sn dipole demonstrator for a future Very High Energy pp Collider based on an optimized 60-mm aperture 4-layer “cos-theta” coil. In order to increase magnet efficiency, we graded the coil by using two cables with same 15 mm width and different thicknesses made of two different Restacked Rod Process (RRP®) wires. Due to the non-uniform field distribution in dipole coils the maximum field in the inner coil will reach 15-16 T, whereas the maximum field in the outer coil is 12-13 T. In preparation for the 15 T dipole coil reaction, heat treatmentmore »« less
Cited by 4
https://doi.org/10.1109/TASC.2016.2645180

Full Text Available

Similar Records

Title: The effect of heat treatment on the stability of Nb3Sn RRP-150/169 strands

Abstract

Citation Formats

Title: The effect of heat treatment on the stability of Nb₃Sn RRP-150/169 strands