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http://dx.doi.org/10.5370/KIEE.2010.59.2.352

A Study on the Superconducting prperties of Bi system bulk  

Lee, Sang-Heon (선문대학교 전자공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.59, no.2, 2010 , pp. 352-354 More about this Journal
Abstract
The effects of Au addition on the structure and the superconducting properties of Bi system bulk have been investigated. Au exists in the metalic form in above materials. It does not affect the formation and structure of the BiSrCaCuO(2223) phase. The superconducting transition temperature Tc does not change for $Bi_{1.7}Pb_{0.3}Sr_2Ca_2Cu_3O$ composite However Au doping can make the grains smaller. Metallic Au can make gathers on the grains boundary and lead to the increment of critical transport current density. The current density of $Bi_{1.7}Pb_{0.3}Sr_2Ca_2Cu_3Au_{0.5}O$ was 1000A/$cm^2$ at liquid nitrogen temperature.
Keywords
Au addition; Bi system bulk; metalic composite;
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