Magnetic field induced texture in high-Tc superconductors

Author

Ferreira, P.J. ; Liu, H.B. ; Vander Sande, J.B.

Author_Institution

Dept. of Mater. Sci. & Eng., MIT, Cambridge, MA, USA

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

2231

Lastpage

2234

Abstract

Bi-2212 superconductor thick films and tapes were melt-grown under a zero and 10 T magnetic field. In the latter case the degree of alignment and consequent transport critical current densities were enhanced. Melt-processing tapes or thick films in a 10 T magnetic field seems to produce uniformly textured grains throughout a large thickness. A theoretical model developed to quantify the degree of texture achieved during various processing conditions suggests that the degree of alignment is obtained through grain rotation during the early stages of grain growth from the liquid.

Keywords

bismuth compounds; calcium compounds; critical current density (superconductivity); grain growth; high-temperature superconductors; strontium compounds; superconducting tapes; texture; 10 T; Bi-2212 superconductor thick films; BiSrCaCuO; degree of alignment; grain growth; grain rotation; high-Tc superconductors; magnetic field induced texture; melt-processing tapes; transport critical current densities; uniformly textured grains; Critical current density; Crystalline materials; Crystallography; High temperature superconductors; Magnetic fields; Magnetic materials; Materials science and technology; Paramagnetic materials; Superconducting materials; Thick films;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.784913

Filename

784913