Method of manufacturing oxide superconductor thick film

Details Method of manufacturing oxide superconductor thick film Method of manufacturing oxide superconductor thick film

2007-12-18

2007-12-18

Talbot, Brian K. (Department: 1762)

Coating processes

Electrical product produced

Superconductor

C427S376100, C427S369000, C427S379000, C505S310000, C505S470000, C505S490000, C505S501000, C505S726000, C505S739000

Reexamination Certificate

active

11133341

ABSTRACT:
The present invention provides an oxide superconductor thick film which is formed on a substrate or a board and has a high Jc and Ic and a method for manufacturing the same. Predetermined amounts of materials containing elements of Bi, Pb, Sr, Ca and Cu are weighed, mixed and subjected to steps of calcining, milling, and drying, and thereafter an organic binder and an organic vehicle are added thereto to prepare a (Bi, Pb)2+aSr2Ca2Cu3O2superconductive paste, which is applied to the surface of a substrate or a board in a thickness of 260 μm or more and dried. Thereafter, the paste is first subjected to burning at temperatures of 835° C. to 840° C. for 100 hours, then pressurization, and further burning at temperatures of 835° C. to 840° C. for 100 hours, thereby preparing an oxide superconductor thick film having a film thickness of 130 μm or more having a high Jc and Ic.

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