Title :
Influence of Cu addition on microstructure and transport properties in MgB2 tapes
Author :
Ko, Jae-Woong ; Yoo, Jaimoo ; Kim, Young-Kuk ; Kim, Hai-Doo ; Oh, Kae-Hee ; Choe, Seung J. ; Chung, Hyungsik ; Chung, Soo Jin ; Kumakura, Hiroaki ; Matsumoto, Akiyoshi ; Togano, Kazumasa
Author_Institution :
Mater. Eng. Dept., Seoul Nat. Univ., Changwon, South Korea
fDate :
6/1/2003 12:00:00 AM
Abstract :
Stainless steel sheathed MgB2 tapes with Cu addition were fabricated by PIT method. The influence of Cu content on microstructure and the critical-current density (Jc) of the tapes has been studied. The Jc value of MgB2 tapes was increased from 1500 A/cm2 to 4500 A/cm2 at 4.2 K and 5 T due to Cu addition. Jc-B curves show enhancement in Jc(B), which suggests that the microstructure and transport properties of MgB2 have been improved with Cu addition.
Keywords :
critical current density (superconductivity); crystal microstructure; magnesium compounds; powder technology; stainless steel; superconducting tapes; 4.2 K; 5 T; Cu addition; MgB2:Cu; critical current density; microstructure; powder in tube method; stainless steel sheathed tapes; Critical current density; Doping; Machinery; Materials science and technology; Microstructure; Powders; Steel; Superconducting magnets; Superconducting materials; Superconductivity;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.812202
