Quench-age method for the fabrication of niobium-aluminum superconductors

Patent · Sun Jan 01 04:00:00 EST 1978

OSTI ID:863076

Pickus, Milton R ^[1]; Ciardella, Robert L ^[2]

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1. Oakland, CA
2. Cardiff, CA

A flexible Nb.sub.3 Al superconducting wire is fabricated from a niobium-aluminum composite wire by heating to form a solid solution which is retained at room temperature as a metastable solid solution by quenching. The metastable solid solution is then transformed to the stable superconducting A-15 phase by low temperature aging. The transformation induced by aging can be controlled to yield either a multifilamentary or a solid A-15 core surrounded by ductile niobium.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4088512
• OSTI ID: 863076
• Country of Publication: United States
• Language: English

Related Subjects

/148/29/505/
a-15
aging
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controlled
core
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ductile
fabricated
fabrication
flexible
flexible nb
form
heating
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metastable
method
multifilamentary
nb
niobium
niobium-aluminum
phase
quench-age
quenching
retained
solid
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stable
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superconducting
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superconductors
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