J. Mater. Sci. Technol. ›› 1993, Vol. 9 ›› Issue (2): 153-155.

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Effects of Sintering on the Microstructure and Critical Current Density of Ag-sheathed BiPbSrCaCuO Superconducting Tapes

Junhua LIU+, Dept. of Manufacturing Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, ChinaZutang WANG, Dept. of Mechanical Engineering, Tsinghua University, Beijing, 100084, China   

  • 收稿日期:1993-03-28 修回日期:1993-03-28 出版日期:1993-03-28 发布日期:2009-10-10

Effects of Sintering on the Microstructure and Critical Current Density of Ag-sheathed BiPbSrCaCuO Superconducting Tapes

Junhua LIU+, Dept. of Manufacturing Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, ChinaZutang WANG, Dept. of Mechanical Engineering, Tsinghua University, Beijing, 100084, China   

  • Received:1993-03-28 Revised:1993-03-28 Online:1993-03-28 Published:2009-10-10

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摘要： <正> The effects of sintering on the microstructure and the critical current density of Ag-sheathedBiPbSrCaCuO (2223) superconducting tapes prepared by the powder-in-tube technique were in-vestigated. The microstructure of oxide layer and the J_C at 77 K were strongly dependent on thesintering condition. The optimum sintering temperature, time and cooling rate to maximize J_C valueswere in the range about 840-850℃, 100-200 h and 50-100℃/h, respectively.

Abstract: The effects of sintering on the microstructure and the critical current density of Ag-sheathed BiPbSrCaCuO (2223) superconducting tapes prepared by the powder-in-tube technique were in- vestigated. The microstructure of oxide layer and the J_C at 77 K were strongly dependent on the sintering condition. The optimum sintering temperature, time and cooling rate to maximize J_C values were in the range about 840-850℃, 100-200 h and 50-100℃/h, respectively.

Key words: BiPbSrCaCuO, superconductor, sintering, sheath