Artificial two-phase Nb-Ti nanostructures using powder metallurgy techniques

Journal Article · Mon Aug 08 00:00:00 EDT 1994 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.112224· OSTI ID:7021371

Jablonski, P D; Lee, P J; Larbalestier, D C ^[1]

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1. Department of Materials Science and Engineering, University of Wisconsin-Madison, 1500 Johnson Drive, Madison, Wisconsin 53706 (United States)

Several techniques to form artifical high critical current density superconducting Nb-Ti nanostructures have been reported. A drawback to virtually all of these techniques is that they require fabrication strains of 30 or more to reduce the second phase pinning center to the optimum 1--10 nm size at which critical current densities of 10[sup 3]--10[sup 4] A/mm[sup 2] are obtained. Here we describe a powder metallurgy process that yields 6020 A/mm[sup 2] at 2 T and 1470 A/mm[sup 2] at 5 T for an alloy with an upper critical field of [similar to]8 T within the same strain space ([similar to]13) employed in the conventional Nb-Ti fabrication process.

• OSTI ID: 7021371
• Journal Information: Applied Physics Letters; (United States), Vol. 65:6; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
NIOBIUM BASE ALLOYS
SUPERCONDUCTIVITY
SUPERCONDUCTING COMPOSITES
FABRICATION
SUPERCONDUCTING WIRES
TITANIUM ALLOYS
BINARY ALLOY SYSTEMS
CHEMICAL COMPOSITION
CRITICAL CURRENT
MICROSTRUCTURE
POWDER METALLURGY
STRAINS
ALLOY SYSTEMS
ALLOYS
COMPOSITE MATERIALS
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
MATERIALS
METALLURGY
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
WIRES
360107* - Metals & Alloys- Superconducting Properties- (1992-)
360102 - Metals & Alloys- Structure & Phase Studies
360101 - Metals & Alloys- Preparation & Fabrication