Temperature changes in a melt-processed YBCO superconductor activated by field cooling magnetizing process

T. Oka; K. Yokoyama; H. Fujishiro; M. Kaneyama; K. Noto

doi:10.1016/j.physc.2005.01.085

Temperature changes in a melt-processed YBCO superconductor activated by field cooling magnetizing process

T. Oka, K. Yokoyama, H. Fujishiro, M. Kaneyama, K. Noto

Research output: Contribution to journal › Conference article › peer-review

11 Citations (Scopus)

Abstract

The temperature rise during the field cooling (FC) magnetizing process with various sweep rates by using a 10 T superconducting solenoid magnet was systematically evaluated with respect to an YBCO single domain trapped-field magnet cooled to 57-75 K by a GM refrigerator. The maximum temperature change has reached 6 K when the sweep rate was -11.3 mT/s and initial temperature of 57 K. The recent elevation of the sweep rate of superconducting magnet and the critical current density of bulk samples have made the heat generation serious even in the FC operation by quasi-static magnetic field.

Original language	English
Pages (from-to)	794-799
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	426-431
Issue number	I
DOIs	https://doi.org/10.1016/j.physc.2005.01.085
Publication status	Published - 2005 Oct 1
Externally published	Yes
Event	Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity - Duration: 2004 Nov 23 → 2004 Nov 25

Keywords

Bulk superconductor
Field cooling
Melt-process
Trapped field magnet

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Temperature changes in a melt-processed YBCO superconductor activated by field cooling magnetizing process",

abstract = "The temperature rise during the field cooling (FC) magnetizing process with various sweep rates by using a 10 T superconducting solenoid magnet was systematically evaluated with respect to an YBCO single domain trapped-field magnet cooled to 57-75 K by a GM refrigerator. The maximum temperature change has reached 6 K when the sweep rate was -11.3 mT/s and initial temperature of 57 K. The recent elevation of the sweep rate of superconducting magnet and the critical current density of bulk samples have made the heat generation serious even in the FC operation by quasi-static magnetic field.",

keywords = "Bulk superconductor, Field cooling, Melt-process, Trapped field magnet",

author = "T. Oka and K. Yokoyama and H. Fujishiro and M. Kaneyama and K. Noto",

note = "Funding Information: This study was supported by IWATE CREATE project driven by Japan Science and Technology Agency. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.; Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

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T1 - Temperature changes in a melt-processed YBCO superconductor activated by field cooling magnetizing process

AU - Oka, T.

AU - Yokoyama, K.

AU - Fujishiro, H.

AU - Kaneyama, M.

AU - Noto, K.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - The temperature rise during the field cooling (FC) magnetizing process with various sweep rates by using a 10 T superconducting solenoid magnet was systematically evaluated with respect to an YBCO single domain trapped-field magnet cooled to 57-75 K by a GM refrigerator. The maximum temperature change has reached 6 K when the sweep rate was -11.3 mT/s and initial temperature of 57 K. The recent elevation of the sweep rate of superconducting magnet and the critical current density of bulk samples have made the heat generation serious even in the FC operation by quasi-static magnetic field.

AB - The temperature rise during the field cooling (FC) magnetizing process with various sweep rates by using a 10 T superconducting solenoid magnet was systematically evaluated with respect to an YBCO single domain trapped-field magnet cooled to 57-75 K by a GM refrigerator. The maximum temperature change has reached 6 K when the sweep rate was -11.3 mT/s and initial temperature of 57 K. The recent elevation of the sweep rate of superconducting magnet and the critical current density of bulk samples have made the heat generation serious even in the FC operation by quasi-static magnetic field.

KW - Bulk superconductor

KW - Field cooling

KW - Melt-process

KW - Trapped field magnet

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DO - 10.1016/j.physc.2005.01.085

M3 - Conference article

AN - SCOPUS:25444489296

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EP - 799

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

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T2 - Proceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity

Y2 - 23 November 2004 through 25 November 2004

ER -

Temperature changes in a melt-processed YBCO superconductor activated by field cooling magnetizing process

Abstract

Keywords

ASJC Scopus subject areas

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