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Title: Method of preloading superconducting coils by using materials with different thermal expansion coefficients

Abstract

The invention provides a high magnetic field coil. The invention provides a preloaded compressive force to the coil maintain the integrity of the coil. The compressive force is obtained by reinforcing the coil with two materials of different thermal expansion rates and then heating the coil to 700 C to obtain the desired compression. The embodiment of the invention uses Nb[sub 3]Sn as the conducting wire, since Nb[sub 3]Sn must be heated to 700 C to cause a reaction which makes Nb[sub 3]Sn superconducting.

Inventors:
Issue Date:
OSTI Identifier:
6022760
Patent Number(s):
5187859
Application Number:
PPN: US 7-571361
Assignee:
Dept. of Energy, Washington, DC (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 23 Aug 1990
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; SUPERCONDUCTING COILS; DESIGN; COMPRESSION; HEATING; INTERMETALLIC COMPOUNDS; MAGNETIC FIELDS; NIOBIUM ALLOYS; SUPERCONDUCTING WIRES; THERMAL EXPANSION; TIN ALLOYS; ALLOYS; EXPANSION; WIRES; 665412* - Superconducting Devices- (1992-)

Citation Formats

Heim, J R. Method of preloading superconducting coils by using materials with different thermal expansion coefficients. United States: N. p., 1993. Web.
Heim, J R. Method of preloading superconducting coils by using materials with different thermal expansion coefficients. United States.
Heim, J R. Tue . "Method of preloading superconducting coils by using materials with different thermal expansion coefficients". United States.
@article{osti_6022760,
title = {Method of preloading superconducting coils by using materials with different thermal expansion coefficients},
author = {Heim, J R},
abstractNote = {The invention provides a high magnetic field coil. The invention provides a preloaded compressive force to the coil maintain the integrity of the coil. The compressive force is obtained by reinforcing the coil with two materials of different thermal expansion rates and then heating the coil to 700 C to obtain the desired compression. The embodiment of the invention uses Nb[sub 3]Sn as the conducting wire, since Nb[sub 3]Sn must be heated to 700 C to cause a reaction which makes Nb[sub 3]Sn superconducting.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {2}
}