Harzimprägnierter Oxid-Supraleiter und zugehöriges Herstellungsverfahren

摘要

There is disclosed an oxide superconductor capable of assuring a high trapped magnetic field and maintaining its performance for a long period of time without being affected by internal or external force such as thermal strain or by corrosive environments. The oxide superconductor comprises a resin impregnated layer incorporated with a filler material having a low value of linear thermal expansion coefficient, or comprises the resin impregnated layer or a resin impregnated layer incorporated with a filler material and covered with a resin layer incorporated with the filler material having a low value of linear thermal expansion coefficient, or comprises an oxide superconductive bulk body having an adhesively covering layer of resin impregnated fabric on the outside surface, or comprises an oxide superconductive bulk body having on the surface thereof a resin or a resin impregnated layer dispersedly incorporated with a filler material. The impregnation of a resin is performed by a method of bringing the resin in liquid form or the resin in liquid form impregnated with a filler material into contact with the bulk body and impregnating the resin into the oxide superconductive bulk body.