Effects of annealing treatment of superconductivity in powder sintered YBCO

X. D. Tang; J. R. Wang; S. G. Xiong; J. R. Xu; G. R. Guo; L. Zhou

Effects of annealing treatment of superconductivity in powder sintered YBCO

X. D. Tang, J. R. Wang, S. G. Xiong, J. R. Xu, G. R. Guo, L. Zhou

Research

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

The effects of annealing treatment on superconducting properties of YBCO bulk samples prepared by powder sintering have been reported and discussed. In the annealing temperature (T_A range from 525 to 750°C, the sample with a single Tc component and the highest Tc°ⁿ and Tc° can be obtained only by annealing at 750°C. When T_A = 750°C the bulk samples consist of two Tc components (higher and lower Tc components). Tc°ⁿ of the higher Tc component and Tc° of the lower Tc component increase with increase of T_A. Jc has a parabolic dependence on T^A and attains a peak when T_A = 700°C. The effect of annealing time (in the range of 4-36 h) on Jc and Tc is not too obvious for a given T_A. A simple explanation for these effects is that the perfection of the one-dimensional (1-D) Cu-O chains and 2-D CuO networks is related to annealing. A good super-conductivity can be attained as long as the sample has the perfect 2-D Cu-O networks under the preconditon that the perfection of 1-D Cu-O chains is above a given level.

Original language	English
Title of host publication	Advances in Cryogenic Engineering
Publisher	Publ by Plenum Publ Corp
Pages	447-452
Number of pages	6
Volume	36
Edition	pt A
ISBN (Print)	0306435985
State	Published - 1990
Externally published	Yes
Event	Proceedings of the 8th International Cryogenic Materials Conference ICMC - Los Angeles, CA, USA Duration: 24 Jul 1989 → 28 Jul 1989

Conference

Conference	Proceedings of the 8th International Cryogenic Materials Conference ICMC
City	Los Angeles, CA, USA
Period	24/07/89 → 28/07/89

Cite this

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title = "Effects of annealing treatment of superconductivity in powder sintered YBCO",

abstract = "The effects of annealing treatment on superconducting properties of YBCO bulk samples prepared by powder sintering have been reported and discussed. In the annealing temperature (TA range from 525 to 750°C, the sample with a single Tc component and the highest Tc°n and Tc° can be obtained only by annealing at 750°C. When TA = 750°C the bulk samples consist of two Tc components (higher and lower Tc components). Tc°n of the higher Tc component and Tc° of the lower Tc component increase with increase of TA. Jc has a parabolic dependence on TA and attains a peak when TA = 700°C. The effect of annealing time (in the range of 4-36 h) on Jc and Tc is not too obvious for a given TA. A simple explanation for these effects is that the perfection of the one-dimensional (1-D) Cu-O chains and 2-D CuO networks is related to annealing. A good super-conductivity can be attained as long as the sample has the perfect 2-D Cu-O networks under the preconditon that the perfection of 1-D Cu-O chains is above a given level.",

author = "Tang, {X. D.} and Wang, {J. R.} and Xiong, {S. G.} and Xu, {J. R.} and Guo, {G. R.} and L. Zhou",

year = "1990",

language = "英语",

isbn = "0306435985",

volume = "36",

pages = "447--452",

booktitle = "Advances in Cryogenic Engineering",

publisher = "Publ by Plenum Publ Corp",

edition = "pt A",

note = "Proceedings of the 8th International Cryogenic Materials Conference ICMC ; Conference date: 24-07-1989 Through 28-07-1989",

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TY - CHAP

T1 - Effects of annealing treatment of superconductivity in powder sintered YBCO

AU - Tang, X. D.

AU - Wang, J. R.

AU - Xiong, S. G.

AU - Xu, J. R.

AU - Guo, G. R.

AU - Zhou, L.

PY - 1990

Y1 - 1990

N2 - The effects of annealing treatment on superconducting properties of YBCO bulk samples prepared by powder sintering have been reported and discussed. In the annealing temperature (TA range from 525 to 750°C, the sample with a single Tc component and the highest Tc°n and Tc° can be obtained only by annealing at 750°C. When TA = 750°C the bulk samples consist of two Tc components (higher and lower Tc components). Tc°n of the higher Tc component and Tc° of the lower Tc component increase with increase of TA. Jc has a parabolic dependence on TA and attains a peak when TA = 700°C. The effect of annealing time (in the range of 4-36 h) on Jc and Tc is not too obvious for a given TA. A simple explanation for these effects is that the perfection of the one-dimensional (1-D) Cu-O chains and 2-D CuO networks is related to annealing. A good super-conductivity can be attained as long as the sample has the perfect 2-D Cu-O networks under the preconditon that the perfection of 1-D Cu-O chains is above a given level.

AB - The effects of annealing treatment on superconducting properties of YBCO bulk samples prepared by powder sintering have been reported and discussed. In the annealing temperature (TA range from 525 to 750°C, the sample with a single Tc component and the highest Tc°n and Tc° can be obtained only by annealing at 750°C. When TA = 750°C the bulk samples consist of two Tc components (higher and lower Tc components). Tc°n of the higher Tc component and Tc° of the lower Tc component increase with increase of TA. Jc has a parabolic dependence on TA and attains a peak when TA = 700°C. The effect of annealing time (in the range of 4-36 h) on Jc and Tc is not too obvious for a given TA. A simple explanation for these effects is that the perfection of the one-dimensional (1-D) Cu-O chains and 2-D CuO networks is related to annealing. A good super-conductivity can be attained as long as the sample has the perfect 2-D Cu-O networks under the preconditon that the perfection of 1-D Cu-O chains is above a given level.

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M3 - 章节

AN - SCOPUS:0025524525

SN - 0306435985

VL - 36

SP - 447

EP - 452

BT - Advances in Cryogenic Engineering

PB - Publ by Plenum Publ Corp

T2 - Proceedings of the 8th International Cryogenic Materials Conference ICMC

Y2 - 24 July 1989 through 28 July 1989

ER -

Effects of annealing treatment of superconductivity in powder sintered YBCO

Abstract

Conference

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