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

Research output: Contribution to journal › Conference article › peer-review

29 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
Externally published	Yes
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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10.1109/77.919871

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

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.",

keywords = "Melt-processing, Pulse field magnetization, Quasi-permanent magnet, RE-Ba-Cu-O",

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

note = "Funding Information: Manuscript received September 18, 2000. The work in Nagoya University was supported in part by a Grant-In-Aid from the Ministry of Education, Science, and Culture of Japan, and by The Iwatani Naoji Foundation's Research Grant.; 2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",

year = "2001",

month = mar,

doi = "10.1109/77.919871",

language = "English",

volume = "11",

pages = "3716--3719",

journal = "IEEE Transactions on Applied Superconductivity",

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TY - JOUR

T1 - Melt-processed RE-Ba-Cu-O (RE=Sm, Nd) superconductors for quasi-permanent magnets

AU - Ikuta, Hiroshi

AU - Hosokawa, Tetsuhiro

AU - Ishihara, Hiromasa

AU - Yoshikawa, Masaaki

AU - Yanagi, Yousuke

AU - Itoh, Yoshitaka

AU - Oka, Tetsuo

AU - Mizutani, Uichiro

N1 - Funding Information: Manuscript received September 18, 2000. The work in Nagoya University was supported in part by a Grant-In-Aid from the Ministry of Education, Science, and Culture of Japan, and by The Iwatani Naoji Foundation's Research Grant.

PY - 2001/3

Y1 - 2001/3

N2 - 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.

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.

KW - Melt-processing

KW - Pulse field magnetization

KW - Quasi-permanent magnet

KW - RE-Ba-Cu-O

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DO - 10.1109/77.919871

M3 - Conference article

AN - SCOPUS:0035268721

VL - 11

SP - 3716

EP - 3719

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 1 III

T2 - 2000 Applied Superconductivity Conference

Y2 - 17 September 2000 through 22 September 2000

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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