Estimation of generated heat in pulse field magnetizing for SmBaCuO bulk superconductor

Hiroyuki Fujishiro; Kazuya Yokoyama; Masahiko Kaneyama; Tetsuo Oka; Koshichi Noto

doi:10.1016/j.physc.2004.01.083

Estimation of generated heat in pulse field magnetizing for SmBaCuO bulk superconductor

Hiroyuki Fujishiro, Kazuya Yokoyama, Masahiko Kaneyama, Tetsuo Oka, Koshichi Noto

Research output: Contribution to journal › Article

20 Citations (Scopus)

Abstract

The generated heat Q during the pulse field magnetizing (PFM) has been estimated for a cryo-cooled SmBaCuO bulk superconductor based on the maximum temperature rise ΔT_max and specific heat C(T). Five successive magnetic pulses with a fixed amplitude (B_ex=3.01 T ∼ 5.42 T) are applied and ΔT_max are measured for the various initial temperature T_s between 40 and 70 K. Q has shown characteristic dependences on T_s,B_ex and the pulse number of the successive pulses. The pinning loss (Q_p) and viscous loss (Q _v) have been separated and estimated as a function of T_s and B_ex.

Original language	English
Pages (from-to)	646-650
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.01.083
Publication status	Published - 2004 Oct 1
Externally published	Yes

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Keywords

Heat generation
Pinning and viscous loss
Pulse field magnetizing
SmBaCuO
Specific heat

ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Fujishiro, H., Yokoyama, K., Kaneyama, M., Oka, T., & Noto, K. (2004). Estimation of generated heat in pulse field magnetizing for SmBaCuO bulk superconductor. Physica C: Superconductivity and its Applications, 412-414(SPEC. ISS.), 646-650. https://doi.org/10.1016/j.physc.2004.01.083

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abstract = "The generated heat Q during the pulse field magnetizing (PFM) has been estimated for a cryo-cooled SmBaCuO bulk superconductor based on the maximum temperature rise ΔTmax and specific heat C(T). Five successive magnetic pulses with a fixed amplitude (Bex=3.01 T ∼ 5.42 T) are applied and ΔTmax are measured for the various initial temperature Ts between 40 and 70 K. Q has shown characteristic dependences on Ts,Bex and the pulse number of the successive pulses. The pinning loss (Qp) and viscous loss (Q v) have been separated and estimated as a function of Ts and Bex.",

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AU - Noto, Koshichi

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10.1016/j.physc.2004.01.083