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Title: Method of manufacturing a niobium-aluminum-germanium superconductive material

Abstract

A method for manufacturing flexible Nb/sub 3/ (Al,Ge) multifilamentary superconductive material in which a sintered porous Nb compact is infiltrated with an Al-Ge alloy. It is deformed and heat treated in a series of steps at successively higher temperatures preferably below 1000/sup 0/C during the heat treatment, cladding material such as copper can be applied to facilitate a deformation step preceding the heat treatment and can remain in place through the heat treatment to serve as a temperature stabilizer for the superconductive material produced. These lower heat treatment temperatures favor formation of filaments with reduced grain size and with more grain boundaries which in turn increase the current-carrying capacity of the superconductive material.

Inventors:
; ;
OSTI Identifier:
5419072
Assignee:
TIC; ERA-05-024362; EDB-80-066797
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM ALLOYS; FLEXIBILITY; SURFACE COATING; COPPER; GERMANIUM ALLOYS; NIOBIUM; ION IMPLANTATION; COMPACTS; DIFFUSION; GRAIN SIZE; HEAT SINKS; HEAT TREATMENTS; PHASE STUDIES; POROSITY; POWDERS; PRODUCTION; SINTERING; SUPERCONDUCTIVITY; TANTALUM; TEMPERATURE DEPENDENCE; TIME DEPENDENCE; ALLOYS; CRYSTAL STRUCTURE; DEPOSITION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; FABRICATION; MECHANICAL PROPERTIES; METALS; MICROSTRUCTURE; PHYSICAL PROPERTIES; REFRACTORY METALS; SIZE; TENSILE PROPERTIES; TRANSITION ELEMENTS; 360101* - Metals & Alloys- Preparation & Fabrication; 656102 - Solid State Physics- Superconductivity- Acoustic, Electronic, Magnetic, Optical, & Thermal Phenomena- (-1987)

Citation Formats

Wang, J L.F., Pickus, M R, and Douglas, K E. Method of manufacturing a niobium-aluminum-germanium superconductive material. United States: N. p., Web.
Wang, J L.F., Pickus, M R, & Douglas, K E. Method of manufacturing a niobium-aluminum-germanium superconductive material. United States.
Wang, J L.F., Pickus, M R, and Douglas, K E. . "Method of manufacturing a niobium-aluminum-germanium superconductive material". United States.
@article{osti_5419072,
title = {Method of manufacturing a niobium-aluminum-germanium superconductive material},
author = {Wang, J L.F. and Pickus, M R and Douglas, K E},
abstractNote = {A method for manufacturing flexible Nb/sub 3/ (Al,Ge) multifilamentary superconductive material in which a sintered porous Nb compact is infiltrated with an Al-Ge alloy. It is deformed and heat treated in a series of steps at successively higher temperatures preferably below 1000/sup 0/C during the heat treatment, cladding material such as copper can be applied to facilitate a deformation step preceding the heat treatment and can remain in place through the heat treatment to serve as a temperature stabilizer for the superconductive material produced. These lower heat treatment temperatures favor formation of filaments with reduced grain size and with more grain boundaries which in turn increase the current-carrying capacity of the superconductive material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {},
month = {}
}