Detection of AE signals from a HTS tape during quenching in a solid cryogen-cooling system

K. J. Kim; J. B. Song; J. H. Kim; J. H. Lee; H. M. Kim; W. S. Kim; J. B. Na; T. K. Ko; H. G. Lee

doi:10.1016/j.physc.2010.05.228

Detection of AE signals from a HTS tape during quenching in a solid cryogen-cooling system

K. J. Kim, J. B. Song, J. H. Kim, J. H. Lee, H. M. Kim, W. S. Kim, J. B. Na, T. K. Ko, H. G. Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The acoustic emission (AE) technique is suitable for detecting the presence of thermal and mechanical stress in superconductors, which have adverse effects on the stability of their application systems. However, the detection of AE signals from a HTS tape in a bath of liquid cryogen (such as liquid nitrogen, LN₂) has not been reported because of its low signal to noise ratio due to the noise from the boiling liquid cryogen. In order to obtain the AE signals from the HTS tapes during quenching, this study carried out repetitive quench tests for YBCO coated conductor (CC) tapes in a cooling system using solid nitrogen (SN₂). This paper examined the performance of the AE sensor in terms of the amplitudes of the AE signals in the SN₂ cooling system. Crown

Original language	English
Pages (from-to)	1883-1886
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	470
Issue number	20
DOIs	https://doi.org/10.1016/j.physc.2010.05.228
Publication status	Published - 2010 Nov 1

Keywords

AE sensor
Acoustic emission (AE)
High-temperature superconductor (HTS)
Quenching
YBCO CC tape

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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10.1016/j.physc.2010.05.228

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@article{7ae2244cb10e4bebb7f8947482753324,

title = "Detection of AE signals from a HTS tape during quenching in a solid cryogen-cooling system",

abstract = "The acoustic emission (AE) technique is suitable for detecting the presence of thermal and mechanical stress in superconductors, which have adverse effects on the stability of their application systems. However, the detection of AE signals from a HTS tape in a bath of liquid cryogen (such as liquid nitrogen, LN2) has not been reported because of its low signal to noise ratio due to the noise from the boiling liquid cryogen. In order to obtain the AE signals from the HTS tapes during quenching, this study carried out repetitive quench tests for YBCO coated conductor (CC) tapes in a cooling system using solid nitrogen (SN2). This paper examined the performance of the AE sensor in terms of the amplitudes of the AE signals in the SN2 cooling system. Crown",

keywords = "AE sensor, Acoustic emission (AE), High-temperature superconductor (HTS), Quenching, YBCO CC tape",

author = "Kim, {K. J.} and Song, {J. B.} and Kim, {J. H.} and Lee, {J. H.} and Kim, {H. M.} and Kim, {W. S.} and Na, {J. B.} and Ko, {T. K.} and Lee, {H. G.}",

note = "Funding Information: This study was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST 2009-0085369 ) and in part by the Electric Power Industry Technology Evaluation and Planning. It was also supported by a grant from the center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, Korea.",

year = "2010",

month = nov,

day = "1",

doi = "10.1016/j.physc.2010.05.228",

language = "English",

volume = "470",

pages = "1883--1886",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "20",

}

TY - JOUR

T1 - Detection of AE signals from a HTS tape during quenching in a solid cryogen-cooling system

AU - Kim, K. J.

AU - Song, J. B.

AU - Kim, J. H.

AU - Lee, J. H.

AU - Kim, H. M.

AU - Kim, W. S.

AU - Na, J. B.

AU - Ko, T. K.

AU - Lee, H. G.

N1 - Funding Information: This study was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST 2009-0085369 ) and in part by the Electric Power Industry Technology Evaluation and Planning. It was also supported by a grant from the center for Applied Superconductivity Technology of the 21st Century Frontier R&D Program funded by the Ministry of Education, Science and Technology, Korea.

PY - 2010/11/1

Y1 - 2010/11/1

N2 - The acoustic emission (AE) technique is suitable for detecting the presence of thermal and mechanical stress in superconductors, which have adverse effects on the stability of their application systems. However, the detection of AE signals from a HTS tape in a bath of liquid cryogen (such as liquid nitrogen, LN2) has not been reported because of its low signal to noise ratio due to the noise from the boiling liquid cryogen. In order to obtain the AE signals from the HTS tapes during quenching, this study carried out repetitive quench tests for YBCO coated conductor (CC) tapes in a cooling system using solid nitrogen (SN2). This paper examined the performance of the AE sensor in terms of the amplitudes of the AE signals in the SN2 cooling system. Crown

AB - The acoustic emission (AE) technique is suitable for detecting the presence of thermal and mechanical stress in superconductors, which have adverse effects on the stability of their application systems. However, the detection of AE signals from a HTS tape in a bath of liquid cryogen (such as liquid nitrogen, LN2) has not been reported because of its low signal to noise ratio due to the noise from the boiling liquid cryogen. In order to obtain the AE signals from the HTS tapes during quenching, this study carried out repetitive quench tests for YBCO coated conductor (CC) tapes in a cooling system using solid nitrogen (SN2). This paper examined the performance of the AE sensor in terms of the amplitudes of the AE signals in the SN2 cooling system. Crown

KW - AE sensor

KW - Acoustic emission (AE)

KW - High-temperature superconductor (HTS)

KW - Quenching

KW - YBCO CC tape

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U2 - 10.1016/j.physc.2010.05.228

DO - 10.1016/j.physc.2010.05.228

M3 - Article

AN - SCOPUS:77957899964

SN - 0921-4534

VL - 470

SP - 1883

EP - 1886

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 20

ER -

Detection of AE signals from a HTS tape during quenching in a solid cryogen-cooling system

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Keywords

ASJC Scopus subject areas

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