A process for producing Bi-2223 high Tc superconductor in which fine MgO particles (0.1 &mgr;m) are homogeneously distributed to provide flux pinning centers in Bi-2223 high Tc superconductor in order to give enhanced critical current density under magnetic field, as compared to the Bi-2223 high Tc superconductor without MgO dispersion, when processed under similar conditions. The process comprises mixing partially converted Bi-2223 powder and MgO fine particles, drying to give mixed powder, filling in silver tube, drawing, rolling and heat-treating at a temperature and for a time sufficient to form Bi-2223 high Tc superconductor in which fine MgO particles are homogeneously distributed.
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机译：一种Bi-2223高T c 超导体的制造方法，其中MgO细颗粒（<0.1＆mgr; m）均匀分布，以在Bi-2223高T c c 超导体相比，在相似的条件下进行处理时，为了在磁场下增强临界电流密度，Sub>超导体。该方法包括将部分转化的Bi-2223粉末和MgO细颗粒混合，干燥以得到混合粉末，填充到银管中，在一定温度和时间下拉伸，轧制和热处理足以形成Bi-2223高T c 超导体，其中MgO细颗粒均匀分布。
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