Melt process for fabrication of high Jc YBCO superconductor

Lian Zhou

Melt process for fabrication of high Jc YBCO superconductor

Research

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

Abstract

Melt process has been extensively studied as an approach for making high Jc (B) YBa₂Cu₃O_7-δ (YBCO) superconductors. In this paper, a review is given on the recent progress of the processing technology, microstructure and Jc (B) improvement in several typical melt processes. Melted and unidirectional solidfied YBCO rods of over 10cm in length were prepared by a zone melting method. A new melt approach 'Powder Melt Process' (PMP) has been developed. The transport Jc measurements shows that the PMP samples have very high Jc values which exceed T1000A/cm² at 77K, 1T and 36000A/cm² at 77K, 4T. It is believed the reduction of weak-links density, the crystal alignment and the strong pinning effect are responsible for the high Jc (B) values of melted YBCO samples. A discussion is presented with respect to the characteristics of microstructure, Jc properties and the pinning effects of the melted YBCO conductors.

Original language	English
Title of host publication	Proc 3 Symp High Temp Supercond Compd
Publisher	Publ by Minerals, Metals & Materials Soc (TMS)
Pages	79-88
Number of pages	10
ISBN (Print)	0873391349
State	Published - 1991
Externally published	Yes

Publication series

Name	Proc 3 Symp High Temp Supercond Compd

Cite this

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title = "Melt process for fabrication of high Jc YBCO superconductor",

abstract = "Melt process has been extensively studied as an approach for making high Jc (B) YBa2Cu3O7-δ (YBCO) superconductors. In this paper, a review is given on the recent progress of the processing technology, microstructure and Jc (B) improvement in several typical melt processes. Melted and unidirectional solidfied YBCO rods of over 10cm in length were prepared by a zone melting method. A new melt approach 'Powder Melt Process' (PMP) has been developed. The transport Jc measurements shows that the PMP samples have very high Jc values which exceed T1000A/cm2 at 77K, 1T and 36000A/cm2 at 77K, 4T. It is believed the reduction of weak-links density, the crystal alignment and the strong pinning effect are responsible for the high Jc (B) values of melted YBCO samples. A discussion is presented with respect to the characteristics of microstructure, Jc properties and the pinning effects of the melted YBCO conductors.",

author = "Lian Zhou",

year = "1991",

language = "英语",

isbn = "0873391349",

series = "Proc 3 Symp High Temp Supercond Compd",

publisher = "Publ by Minerals, Metals & Materials Soc (TMS)",

pages = "79--88",

booktitle = "Proc 3 Symp High Temp Supercond Compd",

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AU - Zhou, Lian

PY - 1991

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N2 - Melt process has been extensively studied as an approach for making high Jc (B) YBa2Cu3O7-δ (YBCO) superconductors. In this paper, a review is given on the recent progress of the processing technology, microstructure and Jc (B) improvement in several typical melt processes. Melted and unidirectional solidfied YBCO rods of over 10cm in length were prepared by a zone melting method. A new melt approach 'Powder Melt Process' (PMP) has been developed. The transport Jc measurements shows that the PMP samples have very high Jc values which exceed T1000A/cm2 at 77K, 1T and 36000A/cm2 at 77K, 4T. It is believed the reduction of weak-links density, the crystal alignment and the strong pinning effect are responsible for the high Jc (B) values of melted YBCO samples. A discussion is presented with respect to the characteristics of microstructure, Jc properties and the pinning effects of the melted YBCO conductors.

AB - Melt process has been extensively studied as an approach for making high Jc (B) YBa2Cu3O7-δ (YBCO) superconductors. In this paper, a review is given on the recent progress of the processing technology, microstructure and Jc (B) improvement in several typical melt processes. Melted and unidirectional solidfied YBCO rods of over 10cm in length were prepared by a zone melting method. A new melt approach 'Powder Melt Process' (PMP) has been developed. The transport Jc measurements shows that the PMP samples have very high Jc values which exceed T1000A/cm2 at 77K, 1T and 36000A/cm2 at 77K, 4T. It is believed the reduction of weak-links density, the crystal alignment and the strong pinning effect are responsible for the high Jc (B) values of melted YBCO samples. A discussion is presented with respect to the characteristics of microstructure, Jc properties and the pinning effects of the melted YBCO conductors.

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M3 - 会议稿件

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T3 - Proc 3 Symp High Temp Supercond Compd

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BT - Proc 3 Symp High Temp Supercond Compd

PB - Publ by Minerals, Metals & Materials Soc (TMS)

ER -

Melt process for fabrication of high Jc YBCO superconductor

Abstract

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