Development of a small-size superconducting bulk magnet system using a 13 K refrigerator

K. Yokoyama, Tetsuo Oka, K. Noto

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We developed a small-superconducting bulk magnet system using a 13 K refrigerator. The industrial applications of bulk magnets demand the miniaturization of the magnet apparatus as well as the enhancement of the magnetic field. A Gifford-McMahon cycle helium refrigerator with the ultimate temperature of 13 K at the 2nd stage was adopted, and a GdBa2Cu 3O7-x bulk material of 60 mm diameter and 20 mm thickness reinforced by a stainless steel ring was located on a cold stage. When a magnetic field of 7.74 T was applied, the trapped field reached 2.76 T, which is the highest ever reported for a pulsed-field magnetization of φ60 mm class bulk material.

Original languageEnglish
Article number5433295
Pages (from-to)973-976
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume20
Issue number3
DOIs
Publication statusPublished - 2010 Jun 1
Externally publishedYes

Fingerprint

Refrigerators
refrigerators
Magnets
magnets
Magnetic fields
Helium
Stainless Steel
miniaturization
magnetic fields
Industrial applications
stainless steels
Magnetization
Stainless steel
helium
magnetization
cycles
augmentation
rings
Temperature
temperature

Keywords

  • Magnetic field distribution
  • Magnetic separation
  • Pulsed-field magnetization
  • Superconducting bulk magnet

ASJC Scopus subject areas

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

Cite this

Development of a small-size superconducting bulk magnet system using a 13 K refrigerator. / Yokoyama, K.; Oka, Tetsuo; Noto, K.

In: IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, 5433295, 01.06.2010, p. 973-976.

Research output: Contribution to journalArticle

@article{24a4b4821549495f9fe45cfb7b8fee90,
title = "Development of a small-size superconducting bulk magnet system using a 13 K refrigerator",
abstract = "We developed a small-superconducting bulk magnet system using a 13 K refrigerator. The industrial applications of bulk magnets demand the miniaturization of the magnet apparatus as well as the enhancement of the magnetic field. A Gifford-McMahon cycle helium refrigerator with the ultimate temperature of 13 K at the 2nd stage was adopted, and a GdBa2Cu 3O7-x bulk material of 60 mm diameter and 20 mm thickness reinforced by a stainless steel ring was located on a cold stage. When a magnetic field of 7.74 T was applied, the trapped field reached 2.76 T, which is the highest ever reported for a pulsed-field magnetization of φ60 mm class bulk material.",
keywords = "Magnetic field distribution, Magnetic separation, Pulsed-field magnetization, Superconducting bulk magnet",
author = "K. Yokoyama and Tetsuo Oka and K. Noto",
year = "2010",
month = "6",
day = "1",
doi = "10.1109/TASC.2010.2041643",
language = "English",
volume = "20",
pages = "973--976",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",

}

TY - JOUR

T1 - Development of a small-size superconducting bulk magnet system using a 13 K refrigerator

AU - Yokoyama, K.

AU - Oka, Tetsuo

AU - Noto, K.

PY - 2010/6/1

Y1 - 2010/6/1

N2 - We developed a small-superconducting bulk magnet system using a 13 K refrigerator. The industrial applications of bulk magnets demand the miniaturization of the magnet apparatus as well as the enhancement of the magnetic field. A Gifford-McMahon cycle helium refrigerator with the ultimate temperature of 13 K at the 2nd stage was adopted, and a GdBa2Cu 3O7-x bulk material of 60 mm diameter and 20 mm thickness reinforced by a stainless steel ring was located on a cold stage. When a magnetic field of 7.74 T was applied, the trapped field reached 2.76 T, which is the highest ever reported for a pulsed-field magnetization of φ60 mm class bulk material.

AB - We developed a small-superconducting bulk magnet system using a 13 K refrigerator. The industrial applications of bulk magnets demand the miniaturization of the magnet apparatus as well as the enhancement of the magnetic field. A Gifford-McMahon cycle helium refrigerator with the ultimate temperature of 13 K at the 2nd stage was adopted, and a GdBa2Cu 3O7-x bulk material of 60 mm diameter and 20 mm thickness reinforced by a stainless steel ring was located on a cold stage. When a magnetic field of 7.74 T was applied, the trapped field reached 2.76 T, which is the highest ever reported for a pulsed-field magnetization of φ60 mm class bulk material.

KW - Magnetic field distribution

KW - Magnetic separation

KW - Pulsed-field magnetization

KW - Superconducting bulk magnet

UR - http://www.scopus.com/inward/record.url?scp=77953020943&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77953020943&partnerID=8YFLogxK

U2 - 10.1109/TASC.2010.2041643

DO - 10.1109/TASC.2010.2041643

M3 - Article

AN - SCOPUS:77953020943

VL - 20

SP - 973

EP - 976

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 3

M1 - 5433295

ER -