OXIDE SUPERCONDUCTIVE WIRE MATERIAL, ITS MANUFACTURING METHOD AND SUPERCONDUCTIVITY APPARATUS
PROBLEM TO BE SOLVED: To provide a (Bi, Pb) 2223 oxide superconductive wire material having a high critical current density and to provide its manufacturing method. SOLUTION: In the method of manufacturing metallic coating (Bi, Pb) 2223 oxide superconductive wire material 11, raw material powder is...
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a (Bi, Pb) 2223 oxide superconductive wire material having a high critical current density and to provide its manufacturing method. SOLUTION: In the method of manufacturing metallic coating (Bi, Pb) 2223 oxide superconductive wire material 11, raw material powder is filled in a metal pipe and wire drawing processing is carried out, and then rolling and heat treating processings are carried out. The total superconductivity filament peripheral length (A) of a matrix before rolling processing step and the cross section (B) of the total superconductivity filament have the relation expressed by 40≤A/B≤80(1/mm). COPYRIGHT: (C)2007,JPO&INPIT |
---|