期刊
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
卷 26, 期 4, 页码 947-952出版社
SPRINGER
DOI: 10.1007/s10948-012-1934-1
关键词
Bi-2212; Superconductor; Laser; Texture; Critical Current
A novel Laser Line Scanning method has been applied to process rectangular cross-section Bi-2212 monoliths containing 2.9 % Ag using a CO2 Laser. Although previous work has suggested the use of nIR lasers (a parts per thousand 0.8-1.1 mu m) for melt-processing metal oxide superconductors, the results obtained here demonstrate that mid-IR radiation from a CO2 laser (10.6 mu m) may be just as convenient for such a purpose while it enables processing large surface areas. The samples described here were processed at traverse rates ranging between 15 and 60 mm/h, exhibited a complex textured microstructure and yielded highest I (c) values of 71 A at 77 K.
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