Influence of Precursor Powder Fabrication Methods on the Superconducting Properties of Bi-2223 Tapes
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摘要
Bi-2223 precursor powders are prepared by both oxalate co-precipitation(CP) and spray pyrolysis(SP) methods.The influence of fabrication methods on the superconducting properties of Bi-2223 tapes are systematically studied. Compared to the CP method, SP powder exhibits spherical particle before calcination and smaller particle size after calcinations with more uniform chemical composition, which leads to a lower reaction temperature during calcination process for Bi-2223 tapes. Meanwhile, the non-superconducting phases in SP powder are more uniformly distributed with smaller particle sizes. These features result in finer homogeneity of critical current in large-length of Bi-2223 tape, higher density of filaments and better texture after heat treatment. Therefore,the SP method could be considered as a better route to prepare precursor powder for large-length Bi-2223 tape fabrication.
Bi-2223 precursor powders are prepared by both oxalate co-precipitation(CP) and spray pyrolysis(SP) methods.The influence of fabrication methods on the superconducting properties of Bi-2223 tapes are systematically studied. Compared to the CP method, SP powder exhibits spherical particle before calcination and smaller particle size after calcinations with more uniform chemical composition, which leads to a lower reaction temperature during calcination process for Bi-2223 tapes. Meanwhile, the non-superconducting phases in SP powder are more uniformly distributed with smaller particle sizes. These features result in finer homogeneity of critical current in large-length of Bi-2223 tape, higher density of filaments and better texture after heat treatment. Therefore,the SP method could be considered as a better route to prepare precursor powder for large-length Bi-2223 tape fabrication.
Bi-2223 precursor powders are prepared by both oxalate co-precipitation(CP) and spray pyrolysis(SP) methods.The influence of fabrication methods on the superconducting properties of Bi-2223 tapes are systematically studied. Compared to the CP method, SP powder exhibits spherical particle before calcination and smaller particle size after calcinations with more uniform chemical composition, which leads to a lower reaction temperature during calcination process for Bi-2223 tapes. Meanwhile, the non-superconducting phases in SP powder are more uniformly distributed with smaller particle sizes. These features result in finer homogeneity of critical current in large-length of Bi-2223 tape, higher density of filaments and better texture after heat treatment. Therefore,the SP method could be considered as a better route to prepare precursor powder for large-length Bi-2223 tape fabrication.
引文
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[16]Jeremie A and Flukiger R 1994 IEEE Trans.Appl.Supercond.30 1883
[17]Mark O,AndréW,Severine A,Zimmer M and Bock J 2005IEEE Trans.Appl.Supercond.15 2499
[2]Grasso G,Jeremie A and Flükigre R 1995 Supercond.Sci.Technol.8 827
[3]Sotelo A,Majewski P,Park H S and Aldinger F 1996 Physicas C 272 115
[4]Jiang J and Abell J S 1998 Supercond.Sci.Technol.11 705
[5]Yoo J,Ko J,Su X D,Kim H and Chung H 2001 IEEETrans.Appl.Supercond.11 3549
[6]Kim W J,Kwon S C,Lee H J,Lee H G,Hong G W and Kuk I H 1998 Physica C 294 147
[7]Yoo J,Ko J,Kang S,Kim H,Jiang C H and Chung H 2002Physica C 372 1005
[8]Bai L F,Zhang S N,Li C S,Hao Q B,Liu G Q and Zhang P X 2016 J.Mater.Sci.:Mater.Electron.27 8862
[9]Li C S,Zhang P X,Yu Z M,Zheng H L,Xiong X M,Liu YS,Wang Q Y,Liu F S,Wu Y F and Zhou L 2003 Physica C 386 127
[10]Cui L J,Zhang P X,Li J S,Yan G,Wang D Y,Pan X F,Liu G Q,Hao Q B,Liu X H and Feng Y 2016 IEEE Trans.Appl.Supercond.26 1
[11]Yoo J,Ko J W,Kim Y K and Chung K C 2005 IEEE Trans.Appl.Supercond.15 2474
[12]Yoo J,Kim S W,Ko J W and Kim Y K 2004 Supercond.Sci.Technol.17 S538
[13]Hsueh Y W,Chang S C,Liu R S,Woodall L and Gerards M 2001 Mater.Res.Bull.36 1653
[14]Li Q,Broderson K,Hjuler H A and Freltoft T 1993 Physica C 217 360
[15]Jiang J and Abell J S 1998 Physica C 296 13
[16]Jeremie A and Flukiger R 1994 IEEE Trans.Appl.Supercond.30 1883
[17]Mark O,AndréW,Severine A,Zimmer M and Bock J 2005IEEE Trans.Appl.Supercond.15 2499