The effect of excess Y2O3 addition on the levitation force of melt processed YBCO bulk superconductors

W. M. Yang; L. Zhou; Y. Feng; P. X. Zhang; M. Z. Wu; C. P. Zhang; J. R. Wang; Z. H. Du; F. Y. Wang; Z. M. Yu; X. Z. Wu; W. Gawalek; P. Gornert

doi:10.1016/S0921-4534(98)00339-6

The effect of excess Y₂O₃ addition on the levitation force of melt processed YBCO bulk superconductors

W. M. Yang, L. Zhou, Y. Feng, P. X. Zhang, M. Z. Wu, C. P. Zhang, J. R. Wang, Z. H. Du, F. Y. Wang, Z. M. Yu, X. Z. Wu, W. Gawalek, P. Gornert

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Abstract

The YBCO superconductors with Y₂O₃ addition were prepared by a modified melt textured process and the effects of excess Y₂O₃ addition on the levitation force of melt textured YBCO have been investigated. The results indicate that the melt temperature of YBCO samples decreases drastically with the increasing excess Y₂O₃, whereas the solid state reaction temperature increases slightly as the Y₂O₃ addition rises. The maximum levitation forces (MLF) are much different for samples with different Y₂O₃ addition. It is found that the optimum Y₂O₃ excess in YBCO for the (strong MLF) is about 10 wt.%. Combined with the micro structure and the starting composition, the results are discussed in detail.

Original language	English
Pages (from-to)	269-274
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	305
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(98)00339-6
State	Published - 1 Sep 1998
Externally published	Yes

Keywords

Levitation force
Melt growth
YO
YBCO superconductors

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10.1016/S0921-4534(98)00339-6

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Yang, W. M., Zhou, L., Feng, Y., Zhang, P. X., Wu, M. Z., Zhang, C. P., Wang, J. R., Du, Z. H., Wang, F. Y., Yu, Z. M., Wu, X. Z., Gawalek, W., & Gornert, P. (1998). The effect of excess Y₂O₃ addition on the levitation force of melt processed YBCO bulk superconductors. Physica C: Superconductivity and its Applications, 305(3-4), 269-274. https://doi.org/10.1016/S0921-4534(98)00339-6

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title = "The effect of excess Y2O3 addition on the levitation force of melt processed YBCO bulk superconductors",

abstract = "The YBCO superconductors with Y2O3 addition were prepared by a modified melt textured process and the effects of excess Y2O3 addition on the levitation force of melt textured YBCO have been investigated. The results indicate that the melt temperature of YBCO samples decreases drastically with the increasing excess Y2O3, whereas the solid state reaction temperature increases slightly as the Y2O3 addition rises. The maximum levitation forces (MLF) are much different for samples with different Y2O3 addition. It is found that the optimum Y2O3 excess in YBCO for the (strong MLF) is about 10 wt.%. Combined with the micro structure and the starting composition, the results are discussed in detail.",

keywords = "Levitation force, Melt growth, YO, YBCO superconductors",

author = "Yang, {W. M.} and L. Zhou and Y. Feng and Zhang, {P. X.} and Wu, {M. Z.} and Zhang, {C. P.} and Wang, {J. R.} and Du, {Z. H.} and Wang, {F. Y.} and Yu, {Z. M.} and Wu, {X. Z.} and W. Gawalek and P. Gornert",

year = "1998",

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doi = "10.1016/S0921-4534(98)00339-6",

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T1 - The effect of excess Y2O3 addition on the levitation force of melt processed YBCO bulk superconductors

AU - Yang, W. M.

AU - Zhou, L.

AU - Feng, Y.

AU - Zhang, P. X.

AU - Wu, M. Z.

AU - Zhang, C. P.

AU - Wang, J. R.

AU - Du, Z. H.

AU - Wang, F. Y.

AU - Yu, Z. M.

AU - Wu, X. Z.

AU - Gawalek, W.

AU - Gornert, P.

PY - 1998/9/1

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N2 - The YBCO superconductors with Y2O3 addition were prepared by a modified melt textured process and the effects of excess Y2O3 addition on the levitation force of melt textured YBCO have been investigated. The results indicate that the melt temperature of YBCO samples decreases drastically with the increasing excess Y2O3, whereas the solid state reaction temperature increases slightly as the Y2O3 addition rises. The maximum levitation forces (MLF) are much different for samples with different Y2O3 addition. It is found that the optimum Y2O3 excess in YBCO for the (strong MLF) is about 10 wt.%. Combined with the micro structure and the starting composition, the results are discussed in detail.

AB - The YBCO superconductors with Y2O3 addition were prepared by a modified melt textured process and the effects of excess Y2O3 addition on the levitation force of melt textured YBCO have been investigated. The results indicate that the melt temperature of YBCO samples decreases drastically with the increasing excess Y2O3, whereas the solid state reaction temperature increases slightly as the Y2O3 addition rises. The maximum levitation forces (MLF) are much different for samples with different Y2O3 addition. It is found that the optimum Y2O3 excess in YBCO for the (strong MLF) is about 10 wt.%. Combined with the micro structure and the starting composition, the results are discussed in detail.

KW - Levitation force

KW - Melt growth

KW - YO

KW - YBCO superconductors

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U2 - 10.1016/S0921-4534(98)00339-6

DO - 10.1016/S0921-4534(98)00339-6

M3 - 文章

AN - SCOPUS:0032156484

SN - 0921-4534

VL - 305

SP - 269

EP - 274

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 3-4

ER -

The effect of excess Y₂O₃ addition on the levitation force of melt processed YBCO bulk superconductors

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