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Title: Scaleup of powder metallurgy processed Nb-Al multifilamentary wire

Abstract

Power metallurgy processed Nb-Al superconducting wires were fabricated from billets up to 45 mm o.d. with nominal areal reduction ratios, R, up to 2 X 10/sup 5/, Nb powder sizes from 40 to 300 ..mu..m from various sources, Al powder sizes from 9 to 75 ..mu..m, Al concentrations from 3 to 25 wt % Al and with a wide range of heat treatments. All the compacts used tap density powder in a Cu tube and swaging and/or rod rolling and subsequent wire drawing. Both single strand and bundled wires were made. Overall critical current densities, J /SUB c/, of 2 X 10/sup 4/ A/cm/sup 2/ at 14 T and 10/sup 4/ A/cm/sup 2/ at 16 T were achieved for 6 to 8 wt % Al in Nb.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Francis Bitter National Magnet Lab. and Plasma Fusion Center Massachusetts Instit. of Techn., Cambridge, MA 02139
OSTI Identifier:
5612557
Resource Type:
Journal Article
Journal Name:
IEEE Trans. Magn.; (United States)
Additional Journal Information:
Journal Volume: 19:3
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SUPERCONDUCTING WIRES; POWDER METALLURGY; ALUMINIUM; BINARY ALLOY SYSTEMS; COPPER; CURRENT DENSITY; HEAT TREATMENTS; NIOBIUM; ALLOY SYSTEMS; ELEMENTS; METALLURGY; METALS; TRANSITION ELEMENTS; WIRES; 420201* - Engineering- Cryogenic Equipment & Devices

Citation Formats

Thieme, C, Foner, S, Otubo, J, Pourrahimi, S, Schwartz, B, and Zhang, H. Scaleup of powder metallurgy processed Nb-Al multifilamentary wire. United States: N. p., 1983. Web. doi:10.1109/TMAG.1983.1062505.
Thieme, C, Foner, S, Otubo, J, Pourrahimi, S, Schwartz, B, & Zhang, H. Scaleup of powder metallurgy processed Nb-Al multifilamentary wire. United States. https://doi.org/10.1109/TMAG.1983.1062505
Thieme, C, Foner, S, Otubo, J, Pourrahimi, S, Schwartz, B, and Zhang, H. 1983. "Scaleup of powder metallurgy processed Nb-Al multifilamentary wire". United States. https://doi.org/10.1109/TMAG.1983.1062505.
@article{osti_5612557,
title = {Scaleup of powder metallurgy processed Nb-Al multifilamentary wire},
author = {Thieme, C and Foner, S and Otubo, J and Pourrahimi, S and Schwartz, B and Zhang, H},
abstractNote = {Power metallurgy processed Nb-Al superconducting wires were fabricated from billets up to 45 mm o.d. with nominal areal reduction ratios, R, up to 2 X 10/sup 5/, Nb powder sizes from 40 to 300 ..mu..m from various sources, Al powder sizes from 9 to 75 ..mu..m, Al concentrations from 3 to 25 wt % Al and with a wide range of heat treatments. All the compacts used tap density powder in a Cu tube and swaging and/or rod rolling and subsequent wire drawing. Both single strand and bundled wires were made. Overall critical current densities, J /SUB c/, of 2 X 10/sup 4/ A/cm/sup 2/ at 14 T and 10/sup 4/ A/cm/sup 2/ at 16 T were achieved for 6 to 8 wt % Al in Nb.},
doi = {10.1109/TMAG.1983.1062505},
url = {https://www.osti.gov/biblio/5612557}, journal = {IEEE Trans. Magn.; (United States)},
number = ,
volume = 19:3,
place = {United States},
year = {Sun May 01 00:00:00 EDT 1983},
month = {Sun May 01 00:00:00 EDT 1983}
}