Quench-age method for the fabrication of Nb(Al) superconductors

Conference · Sun Aug 01 00:00:00 EDT 1976

OSTI ID:7251897

Ciardella, R L; Dariel, M P; Wang, J L.F.; Pickus, M R

The possibility of taking advantage of the extended, high temperature solid solubility of Al in Nb in order to produce composite Nb-Nb/sub 3/Al superconductors was investigated. Rapid quenching after an elevated (1950/sup 0/C) solution treatment makes it possible to retain at room temperature a metastable solid solution containing up to 21 at. percent Al. The solid solution transforms into the A-15 phase in the course of a short and relatively low temperature (1000/sup 0/C) aging treatment. The inductively measured onset of superconductivity was 17.6/sup 0/K in a 100 ..mu..m thick core of Nb/sub 3/Al embedded in a Nb matrix and prepared by the quench-age method.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7251897
• Report Number(s): LBL-4953; CONF-760829-40; TRN: 77-000194
• Resource Relation: Conference: Applied superconductivity conference, Stanford, CA, USA, 17 Aug 1976
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM ALLOYS
SUPERCONDUCTIVITY
NIOBIUM ALLOYS
SUPERCONDUCTING COMPOSITES
FABRICATION
BINARY ALLOY SYSTEMS
QUENCHING
SOLID SOLUTIONS
TRANSITION TEMPERATURE
ALLOY SYSTEMS
ALLOYS
COMPOSITE MATERIALS
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HEAT TREATMENTS
MIXTURES
PHYSICAL PROPERTIES
SOLUTIONS
THERMODYNAMIC PROPERTIES
360101* - Metals & Alloys- Preparation & Fabrication
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)