Title :
Texture and formation of (Bi,Pb)-2223 phase after partial-melting and solidification in high magnetic fields
Author :
Lu, X.Y. ; Nagata, A. ; Watanabe, K. ; Nojima, T. ; Kamio, D. ; Sugawara, K. ; Kamada, S.
Author_Institution :
Fac. of Eng. & Resource Sci., Akita Univ., Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
We investigated the texture and formation of (Bi,Pb)-2223 phase after partial-melting and solidification in high magnetic fields. It has been found that the (Bi,Pb)-2212 grains with their c-axis parallel to the magnetic field were formed after the partial-melting and solidification in 8 T magnetic field, and transformed into the (Bi,Pb)-2223 grains with c-axis alignment during the further sintering process at 840°C without magnetic field. The conversion (Bi,Pb)-2212 grains to (Bi,Pb)-2223 grains has the heredity in grain alignment
Keywords :
bismuth compounds; calcium compounds; crystal microstructure; high-temperature superconductors; lead compounds; magnetic field effects; powder technology; solidification; strontium compounds; texture; (Bi,Pb)-2223 phase; 2212 grains; BiPbSrCaCuO; c-axis alignment; grain alignment; high magnetic fields; partial-melting; sintering process; solidification; texture; Furnaces; Magnetic field measurement; Magnetic fields; Magnetic materials; Microstructure; Superconducting magnets; Surface texture; Temperature; Vibration measurement; X-ray scattering;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
