Effect of aluminum additions on Nb/sub 3/Sn produced in the solid state

Journal Article · Tue Jun 01 04:00:00 EDT 1976 · Nucl. Technol.; (United States)

OSTI ID:7253272

Dew-Hughes, D; Luhman, T S; Suenaga, M

Aluminium was added to the niobium core, and in various quantities to the copper-tin bronze, of composite wires that were reacted to form Nb/sub 3/Sn small amounts of aluminium in the bronze enhance the growth rate of Nb/sub 3/Sn layers; aluminium in the core, and greater amounts in the bronze displacing some of the tin, cause a reduction in growth rate. Layer thickness is a function of (reaction time)/sup 0/./sup 67/. Microprobe analysis revealed the presence of aluminium in the reacted layers only for specimens with aluminium additions to the core and in substantial quantities to the matrix. Critical current densities are primarily a function of reacted layer thickness. Specimens in which some aluminium was successfully incorporated in thin (1- to 1.5-..mu..m) layers of Nb/sub 3/Sn showed maximum current densities around 10/sup 9/A/m/sup 2/ in transverse fields of 16T.

• Research Organization: Brookhaven National Lab., Upton, NY
• OSTI ID: 7253272
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 29; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360104 -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BRONZE
COPPER ALLOYS
COPPER BASE ALLOYS
CRITICAL CURRENT
CURRENT DENSITY
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FABRICATION
MAGNETIC FIELDS
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
TIN ALLOYS