Magnetic levitation in liquid oxygen and its applications

M. Muralidhar; N. Sakai; M. Jirsa; M. Murakami; N. Koshizuka

doi:10.1016/j.physc.2003.12.069

Magnetic levitation in liquid oxygen and its applications

M. Muralidhar, N. Sakai, M. Jirsa, M. Murakami, N. Koshizuka

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Combination of extremely fine Gd-211 particles and the LRE/Ba solid solution pinning disorder in a melt processed (Nd_0.33Eu _0.33Gd_0.33)Ba₂Cu₃O_y, followed by an optimal oxygenation resulted in outstanding electromagnetic performance of the material. Transmission electron microscopy with energy dispersive X-ray analysis identified nanometer scale Zr-rich NEG-Ba-Cu-O particles. These were evidently responsible for a substantial increase of the critical current density at 77 K and the rise by an order of magnitude at and above 90 K. Efficient field trapping ability at 90.2 K enabled new NEG-123 magnet to be for the first time employed in levitation at liquid oxygen.

Original language	English
Pages (from-to)	739-743
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.2003.12.069
Publication status	Published - 2004 Oct

Keywords

Critical current density (J)
LRE-BaCuO
Levitation at 90 K for material index
Melt processing
TEM

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2003.12.069

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title = "Magnetic levitation in liquid oxygen and its applications",

abstract = "Combination of extremely fine Gd-211 particles and the LRE/Ba solid solution pinning disorder in a melt processed (Nd0.33Eu 0.33Gd0.33)Ba2Cu3Oy, followed by an optimal oxygenation resulted in outstanding electromagnetic performance of the material. Transmission electron microscopy with energy dispersive X-ray analysis identified nanometer scale Zr-rich NEG-Ba-Cu-O particles. These were evidently responsible for a substantial increase of the critical current density at 77 K and the rise by an order of magnitude at and above 90 K. Efficient field trapping ability at 90.2 K enabled new NEG-123 magnet to be for the first time employed in levitation at liquid oxygen.",

keywords = "Critical current density (J), LRE-BaCuO, Levitation at 90 K for material index, Melt processing, TEM",

author = "M. Muralidhar and N. Sakai and M. Jirsa and M. Murakami and N. Koshizuka",

note = "Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.",

year = "2004",

month = oct,

doi = "10.1016/j.physc.2003.12.069",

language = "English",

volume = "412-414",

pages = "739--743",

journal = "Physica C: Superconductivity and its Applications",

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T1 - Magnetic levitation in liquid oxygen and its applications

AU - Muralidhar, M.

AU - Sakai, N.

AU - Jirsa, M.

AU - Murakami, M.

AU - Koshizuka, N.

N1 - Funding Information: This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.

PY - 2004/10

Y1 - 2004/10

N2 - Combination of extremely fine Gd-211 particles and the LRE/Ba solid solution pinning disorder in a melt processed (Nd0.33Eu 0.33Gd0.33)Ba2Cu3Oy, followed by an optimal oxygenation resulted in outstanding electromagnetic performance of the material. Transmission electron microscopy with energy dispersive X-ray analysis identified nanometer scale Zr-rich NEG-Ba-Cu-O particles. These were evidently responsible for a substantial increase of the critical current density at 77 K and the rise by an order of magnitude at and above 90 K. Efficient field trapping ability at 90.2 K enabled new NEG-123 magnet to be for the first time employed in levitation at liquid oxygen.

AB - Combination of extremely fine Gd-211 particles and the LRE/Ba solid solution pinning disorder in a melt processed (Nd0.33Eu 0.33Gd0.33)Ba2Cu3Oy, followed by an optimal oxygenation resulted in outstanding electromagnetic performance of the material. Transmission electron microscopy with energy dispersive X-ray analysis identified nanometer scale Zr-rich NEG-Ba-Cu-O particles. These were evidently responsible for a substantial increase of the critical current density at 77 K and the rise by an order of magnitude at and above 90 K. Efficient field trapping ability at 90.2 K enabled new NEG-123 magnet to be for the first time employed in levitation at liquid oxygen.

KW - Critical current density (J)

KW - LRE-BaCuO

KW - Levitation at 90 K for material index

KW - Melt processing

KW - TEM

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DO - 10.1016/j.physc.2003.12.069

M3 - Article

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VL - 412-414

SP - 739

EP - 743

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - SPEC. ISS.

ER -

Magnetic levitation in liquid oxygen and its applications

Abstract

Keywords

ASJC Scopus subject areas

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