We fabricated Bi-2212/ composite superconductors and evaluated the effects of the powder mixing method and melting temperature on their microstructure and superconducting properties. The Bi-2212 powders were mixed with by hand-mixing (HM) and planetary ball milling (PBM) and then the powder mixtures were melted at , solidified, and annealed. We found that the powder mixture prepared by PBM was finer and more homogeneously mixed than that prepared by HM, resulting in more homogeneous microstructure and smaller and second phases after annealing.

• Kim
• Kyu-Tae
• Jang
• Seok-Hern
• Lim
• Jun-Hyung
• Park
• Eui-Cheol
• Joo
• Jin-Ho
• Lee
• Hoo-Jeong
• Hong
• Gye-Won
• Kim
• Chan-Joong
• Kim
• Hye-Rim
• Hyun
• Ok-Bae