The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Superconducting prperties of Bi system bulk

Bi system bulk의 superconducting properties

  • Published : 2010.02.01
Download PDF
⟨ Previous Next ⟩

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

References

  1. S.Jin etal "High Critical Currents in YBaCuO Superconductor", Appl.Phys.Let., 58, p.2074 ,1988
  2. M.Murakami, "Magnetization of a $YBa_{2}Cu_{3}O_{7}$ Crystal Prepared by the Quench and Melt Growth Process", Jpn. J. Appl. Phys. Lett. 28, 1125, 1989 https://doi.org/10.1143/JJAP.28.L1125
  3. K.Salama, "High Current Density in $YBa_{2}Cu_{3}O_{x}$ Superconductor" , Appl. Phys. Lett 54, 2352, (1989) https://doi.org/10.1063/1.101525
  4. D.Behera, T.Mohanty, S.K.Dash, T.Banerjee, D.Kanjial, N.C.Mishrr "Effect of secondary electrons from latent tracks created in YBCO by swift heavy ion irradiation" Radiation measurement vol.36, pp.125-129, 2003 https://doi.org/10.1016/S1350-4487(03)00108-2
  5. F.C.Moon, "Magnetic Forces in High-Tc Superconducting Bearing", Appl. Electromagnetics in Materials. 1, 29, 1990
  6. M.Murakami, "Flux Pinning of Melt Processed YBCO Superconductors and Their Applications" Nova Science Publishers, 9