Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field

Y. Zushi; I. Asaba; J. Ogawa; K. Yamagishi; O. Tsukamoto; M. Murakami; M. Tomita

doi:10.1016/j.physc.2004.01.094

Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field

Y. Zushi, I. Asaba, J. Ogawa, K. Yamagishi, O. Tsukamoto, M. Murakami, M. Tomita

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

The trapped magnetic field in a bulk is decayed and even erased by the application of the AC external magnetic field whose amplitude is much smaller than the trapped magnetic field. In the previous work, an experimental result showed that the decay of the trapped magnetic field was due to temperature rise of the bulk caused by the AC losses. Based on this result, it is considered that the decay can be suppressed by (a) improvement of the cooling of the bulk and (b) reduction of the AC losses. We verified the effectiveness of these methods by conducting an experiment using a recently developed metal impregnated bulk which has high critical current density and improved thermal conductivity.

Original language	English
Pages (from-to)	708-713
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.01.094
Publication status	Published - 2004 Oct 1

Fingerprint

Keywords

AC losses
Bulk temperature
HTS bult
Trapped magnetic field

ASJC Scopus subject areas

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

Cite this

Zushi, Y., Asaba, I., Ogawa, J., Yamagishi, K., Tsukamoto, O., Murakami, M., & Tomita, M. (2004). Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field. Physica C: Superconductivity and its applications, 412-414(SPEC. ISS.), 708-713. https://doi.org/10.1016/j.physc.2004.01.094

@article{5c01e97abd18415ab4ad39c3bff2b9aa,

title = "Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field",

abstract = "The trapped magnetic field in a bulk is decayed and even erased by the application of the AC external magnetic field whose amplitude is much smaller than the trapped magnetic field. In the previous work, an experimental result showed that the decay of the trapped magnetic field was due to temperature rise of the bulk caused by the AC losses. Based on this result, it is considered that the decay can be suppressed by (a) improvement of the cooling of the bulk and (b) reduction of the AC losses. We verified the effectiveness of these methods by conducting an experiment using a recently developed metal impregnated bulk which has high critical current density and improved thermal conductivity.",

keywords = "AC losses, Bulk temperature, HTS bult, Trapped magnetic field",

author = "Y. Zushi and I. Asaba and J. Ogawa and K. Yamagishi and O. Tsukamoto and M. Murakami and M. Tomita",

year = "2004",

month = oct

day = "1",

doi = "10.1016/j.physc.2004.01.094",

language = "English",

volume = "412-414",

pages = "708--713",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "SPEC. ISS.",

}

TY - JOUR

T1 - Study on suppression of decay of trapped magnetic field in HTS bulk subject to AC magnetic field

AU - Zushi, Y.

AU - Asaba, I.

AU - Ogawa, J.

AU - Yamagishi, K.

AU - Tsukamoto, O.

AU - Murakami, M.

AU - Tomita, M.

PY - 2004/10/1

Y1 - 2004/10/1

N2 - The trapped magnetic field in a bulk is decayed and even erased by the application of the AC external magnetic field whose amplitude is much smaller than the trapped magnetic field. In the previous work, an experimental result showed that the decay of the trapped magnetic field was due to temperature rise of the bulk caused by the AC losses. Based on this result, it is considered that the decay can be suppressed by (a) improvement of the cooling of the bulk and (b) reduction of the AC losses. We verified the effectiveness of these methods by conducting an experiment using a recently developed metal impregnated bulk which has high critical current density and improved thermal conductivity.

AB - The trapped magnetic field in a bulk is decayed and even erased by the application of the AC external magnetic field whose amplitude is much smaller than the trapped magnetic field. In the previous work, an experimental result showed that the decay of the trapped magnetic field was due to temperature rise of the bulk caused by the AC losses. Based on this result, it is considered that the decay can be suppressed by (a) improvement of the cooling of the bulk and (b) reduction of the AC losses. We verified the effectiveness of these methods by conducting an experiment using a recently developed metal impregnated bulk which has high critical current density and improved thermal conductivity.

KW - AC losses

KW - Bulk temperature

KW - HTS bult

KW - Trapped magnetic field

UR - http://www.scopus.com/inward/record.url?scp=4644278910&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4644278910&partnerID=8YFLogxK

U2 - 10.1016/j.physc.2004.01.094

DO - 10.1016/j.physc.2004.01.094

M3 - Article

AN - SCOPUS:4644278910

VL - 412-414

SP - 708

EP - 713

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - SPEC. ISS.

ER -

Access to Document

10.1016/j.physc.2004.01.094