Melt-processed RE-Ba-Cu-O (RE=Sm, Nd) superconductors for quasi-permanent magnets

Hiroshi Ikuta; Tetsuhiro Hosokawa; Hiromasa Ishihara; Masaaki Yoshikawa; Yousuke Yanagi; Yoshitaka Itoh; Tetsuo Oka; Uichiro Mizutani

doi:10.1109/77.919871

Melt-processed RE-Ba-Cu-O (RE=Sm, Nd) superconductors for quasi-permanent magnets

Hiroshi Ikuta, Tetsuhiro Hosokawa, Hiromasa Ishihara, Masaaki Yoshikawa, Yousuke Yanagi, Yoshitaka Itoh, Tetsuo Oka, Uichiro Mizutani

Department of Materials Science and Engineering

Research output: Contribution to journal › Conference article

26 Citations (Scopus)

Abstract

The microstructures of melt-processed Nd-BCO/Ag samples were investigated. A rather homogeneous distribution of Nd422 particles was found, which can be attributed to the fast growing speed of NdBCO and the large size of Nd422 particles. The dispersion of Ag depended on the content of Ag₂O, and the phase relation of the Nd-BCO/Ag system is discussed. We also studied the pulsed field magnetization technique, and found that the amount of magnetic fluxes trapped by SmBCO significantly increased by sandwiching the sample with ferromagnetic yokes and repeatedly applying magnetic pulses with decreasing the amplitude.

Original language	English
Pages (from-to)	3716-3719
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	11
Issue number	1 III
DOIs	https://doi.org/10.1109/77.919871
Publication status	Published - 2001 Mar 1
Event	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 2000 Sep 17 → 2000 Sep 22

Keywords

Melt-processing
Pulse field magnetization
Quasi-permanent magnet
RE-Ba-Cu-O

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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Ikuta, H., Hosokawa, T., Ishihara, H., Yoshikawa, M., Yanagi, Y., Itoh, Y., Oka, T., & Mizutani, U. (2001). Melt-processed RE-Ba-Cu-O (RE=Sm, Nd) superconductors for quasi-permanent magnets. IEEE Transactions on Applied Superconductivity, 11(1 III), 3716-3719. https://doi.org/10.1109/77.919871

Melt-processed RE-Ba-Cu-O (RE=Sm, Nd) superconductors for quasi-permanent magnets. / Ikuta, Hiroshi; Hosokawa, Tetsuhiro; Ishihara, Hiromasa; Yoshikawa, Masaaki; Yanagi, Yousuke; Itoh, Yoshitaka; Oka, Tetsuo; Mizutani, Uichiro.

In: IEEE Transactions on Applied Superconductivity, Vol. 11, No. 1 III, 01.03.2001, p. 3716-3719.

Research output: Contribution to journal › Conference article

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abstract = "The microstructures of melt-processed Nd-BCO/Ag samples were investigated. A rather homogeneous distribution of Nd422 particles was found, which can be attributed to the fast growing speed of NdBCO and the large size of Nd422 particles. The dispersion of Ag depended on the content of Ag2O, and the phase relation of the Nd-BCO/Ag system is discussed. We also studied the pulsed field magnetization technique, and found that the amount of magnetic fluxes trapped by SmBCO significantly increased by sandwiching the sample with ferromagnetic yokes and repeatedly applying magnetic pulses with decreasing the amplitude.",

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AU - Yoshikawa, Masaaki

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AB - The microstructures of melt-processed Nd-BCO/Ag samples were investigated. A rather homogeneous distribution of Nd422 particles was found, which can be attributed to the fast growing speed of NdBCO and the large size of Nd422 particles. The dispersion of Ag depended on the content of Ag2O, and the phase relation of the Nd-BCO/Ag system is discussed. We also studied the pulsed field magnetization technique, and found that the amount of magnetic fluxes trapped by SmBCO significantly increased by sandwiching the sample with ferromagnetic yokes and repeatedly applying magnetic pulses with decreasing the amplitude.

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