Method for the manufacture of a superconductor with a superconductive intermetallic compound of at least two elements
AssigneeSiemens Aktiengesellschaft
InventorsGunther Ziegler, Sigrun Frohmader, Manfred Wilhelm
Life of this patent
Estimating the term…
Abstract
A method for the manufacture of a superconductor with a superconductive intermetallic compound consisting of at least two chemical elements in which a ductile structural part made of at least one element of the compound is brought into contact with a second structural part which contains a ductile carrier metal for the remaining elements of the compound after which the remaining elements of the compound are admitted to the second ductile structural part through a chemical transport reaction at elevated temperature, the compound being formed by a reaction of its remaining elements, diffusing through the second structural part, with the first structural part.
Claims28
A method for the manufacture of a superconductor with a superconductive intermetallic compound consisting of at least two chemical elements by steps comprising bringing a ductile structural part made of at least one element of the compound into contact with a second structural part which contains a ductile carrier metal for the remaining elements of the compound;
- subsequently supplying the remaining elements of the compound to the second structural part at elevated temperature;
- and diffusing the remaining elements through the second structural part and reacting said remaining elements with said first structural part to form the compound, wherein the improvement comprises performing said step of supplying so as to supply the remaining elements to the second structural part solely by a chemical transport reaction of the type in which said remaining elements are initially converted by a gaseous transport agent in a reversible reaction to form gaseous reaction products and the gaseous reaction products subsequently decomposed in a reversal of the reaction to thereby supply the remaining elements to the second structural part.
A method for the manufacture of a superconducting with a superconductive intermetallic compound consisting of at least two chemical elements by steps comprising bringing a ductile structural part made of at least one element of the compound into contact with a second structural part which contains a ductile carrier metal for the remaining elements of the compound;
- subsequently supplying the remaining elements of the compound to the second structural part at elevated temperature;
- and diffusing the remaining elements through the second structural part and reacting said remaining elements with said first structural part to form the compound, wherein the improvement comprises:
- a. disposing said first and second structural parts, after being brought together, in a reaction chamber;
- b. also disposing within said reaction chamber the remaining elements;
- c. providing a supply of chemical transport agent for said remaining elements in said reaction chamber;
- d. heatimg said reaction chamber to cause said chemical transport agent to carry out a chemical transport reaction solely of the type in which said remaining elements react in a reversible reaction with the gaseous transport agent to form gaseous products which are subsequently decomposed in a reversal of the reaction at said second structural part, whereby said remaining elements are supplied to said second structural part by means of a chemical transport reaction;
- and
- e. maintaining said transport reaction for a predetermined period of time so as to supply a desired amount of said remaining elements to said second structural part.
Dependencies are inferred from the claim text.