Measuring AC losses and critical current of high pressure synthesized MgB2 bulk rings by the transformer method

Victor Meerovich; Vladimir Sokolovsky; Tatiana Prikhna; Wolfgang Gawalek

doi:10.4028/www.scientific.net/MSF.721.27

Measuring AC losses and critical current of high pressure synthesized MgB₂ bulk rings by the transformer method

Victor Meerovich, Vladimir Sokolovsky, Tatiana Prikhna, Wolfgang Gawalek

Department of Physics

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

1 Scopus citations

Abstract

The results of experimental study of the critical current and AC losses in high pressuresynthesized MgB₂ bulk superconductors are presented. The method is based on the use of the transformer configuration and suitable for samples in the form of hollow superconducting cylinders and rings. It was shown that the critical current measured by the transformer method is an order of magnitude lower than the value given by the magnetization technique. The obtained dependencies of the losses on current and frequency reveal the deviations from the critical state model behavior and reflect structural peculiarities of the investigated MgB₂ samples.

Original language	English
Title of host publication	Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials
Publisher	Trans Tech Publications Ltd
Pages	27-32
Number of pages	6
ISBN (Print)	9783037854204
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.721.27
State	Published - 1 Jan 2012
Event	7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7 - Budapest, Hungary Duration: 6 Jul 2011 → 9 Jul 2011

Publication series

Name	Materials Science Forum
Volume	721
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Conference

Conference	7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7
Country/Territory	Hungary
City	Budapest
Period	6/07/11 → 9/07/11

Keywords

AC losses
Critical current

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/www.scientific.net/MSF.721.27

Cite this

Meerovich, V., Sokolovsky, V., Prikhna, T., & Gawalek, W. (2012). Measuring AC losses and critical current of high pressure synthesized MgB₂ bulk rings by the transformer method. In Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials (pp. 27-32). (Materials Science Forum; Vol. 721). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.721.27

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abstract = "The results of experimental study of the critical current and AC losses in high pressuresynthesized MgB2 bulk superconductors are presented. The method is based on the use of the transformer configuration and suitable for samples in the form of hollow superconducting cylinders and rings. It was shown that the critical current measured by the transformer method is an order of magnitude lower than the value given by the magnetization technique. The obtained dependencies of the losses on current and frequency reveal the deviations from the critical state model behavior and reflect structural peculiarities of the investigated MgB2 samples.",

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Meerovich, V , Sokolovsky, V, Prikhna, T & Gawalek, W 2012, Measuring AC losses and critical current of high pressure synthesized MgB₂ bulk rings by the transformer method. in Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials. Materials Science Forum, vol. 721, Trans Tech Publications Ltd, pp. 27-32, 7th Japanese-Mediterranean and Central European Workshop on Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials, JAPMED'7, Budapest, Hungary, 6/07/11. https://doi.org/10.4028/www.scientific.net/MSF.721.27

Measuring AC losses and critical current of high pressure synthesized MgB₂ bulk rings by the transformer method. / Meerovich, Victor ; Sokolovsky, Vladimir; Prikhna, Tatiana et al.
Applied Electromagnetic Engineering for Magnetic, Superconducting and Nano Materials. Trans Tech Publications Ltd, 2012. p. 27-32 (Materials Science Forum; Vol. 721).

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

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