Microstructure and superconductive property of the extruded MgB 2/Al composite materials

Kenji Matsuda; Masaru Morobayashi; Katsuhiko Nishimura; Katsunori Mori; Shigeki Aoyama; Yukinobu Yabumoto; Yoshimitsu Hishinuma; Susumu Ikeno

doi:10.4028/0-87849-463-4.313

Microstructure and superconductive property of the extruded MgB ₂/Al composite materials

Kenji Matsuda^*, Masaru Morobayashi, Katsuhiko Nishimura, Katsunori Mori, Shigeki Aoyama, Yukinobu Yabumoto, Yoshimitsu Hishinuma, Susumu Ikeno

^*Corresponding author for this work

Materials Design and Engineering

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

Abstract

The superconductive MgB₂/Al composite material with low and high volume fractions of particles were fabricated by our special 3-dimensional penetration casting (3DPC) method. The composite material showed homogeneous distribution of MgB₂ particles in the Al-matrix with neither any aggregation of particles nor defects such as cracks or cavities. The critical temperature of superconducting transition (T_C) was obtained via electrical resistivity and magnetization to be about 37 - 39K. The Meissner effect was also verified in the liquid He, in which a piece of the composite floated above a permanent magnet. Extruded rod and wire were successfully fabricated and they also showed onset Tc of 39 K on their electrical resistivities as the same as the billet sample.

Original language	English
Pages (from-to)	313-316
Number of pages	4
Journal	Advanced Materials Research
Volume	24-25
DOIs	https://doi.org/10.4028/0-87849-463-4.313
State	Published - 2007
Event	PRICM 6: The 6th Pacific Rim International Conference on Advanced Materials and Processing - Jeju Island, Korea, Republic of Duration: 2007/11/05 → 2007/11/09

Keywords

Aluminum
Composite material
Extrusion
MgB
Microstructure
Superconductivity

ASJC Scopus subject areas

General Engineering

Access to Document

10.4028/0-87849-463-4.313

Cite this

@article{b5e73ee63774489898c37303b8e5560f,

title = "Microstructure and superconductive property of the extruded MgB 2/Al composite materials",

abstract = "The superconductive MgB2/Al composite material with low and high volume fractions of particles were fabricated by our special 3-dimensional penetration casting (3DPC) method. The composite material showed homogeneous distribution of MgB2 particles in the Al-matrix with neither any aggregation of particles nor defects such as cracks or cavities. The critical temperature of superconducting transition (TC) was obtained via electrical resistivity and magnetization to be about 37 - 39K. The Meissner effect was also verified in the liquid He, in which a piece of the composite floated above a permanent magnet. Extruded rod and wire were successfully fabricated and they also showed onset Tc of 39 K on their electrical resistivities as the same as the billet sample.",

keywords = "Aluminum, Composite material, Extrusion, MgB, Microstructure, Superconductivity",

author = "Kenji Matsuda and Masaru Morobayashi and Katsuhiko Nishimura and Katsunori Mori and Shigeki Aoyama and Yukinobu Yabumoto and Yoshimitsu Hishinuma and Susumu Ikeno",

year = "2007",

doi = "10.4028/0-87849-463-4.313",

language = "英語",

volume = "24-25",

pages = "313--316",

journal = "Advanced Materials Research",

issn = "1022-6680",

publisher = "Trans Tech Publications",

note = "PRICM 6: The 6th Pacific Rim International Conference on Advanced Materials and Processing ; Conference date: 05-11-2007 Through 09-11-2007",

}

TY - JOUR

T1 - Microstructure and superconductive property of the extruded MgB 2/Al composite materials

AU - Matsuda, Kenji

AU - Morobayashi, Masaru

AU - Nishimura, Katsuhiko

AU - Mori, Katsunori

AU - Aoyama, Shigeki

AU - Yabumoto, Yukinobu

AU - Hishinuma, Yoshimitsu

AU - Ikeno, Susumu

PY - 2007

Y1 - 2007

N2 - The superconductive MgB2/Al composite material with low and high volume fractions of particles were fabricated by our special 3-dimensional penetration casting (3DPC) method. The composite material showed homogeneous distribution of MgB2 particles in the Al-matrix with neither any aggregation of particles nor defects such as cracks or cavities. The critical temperature of superconducting transition (TC) was obtained via electrical resistivity and magnetization to be about 37 - 39K. The Meissner effect was also verified in the liquid He, in which a piece of the composite floated above a permanent magnet. Extruded rod and wire were successfully fabricated and they also showed onset Tc of 39 K on their electrical resistivities as the same as the billet sample.

AB - The superconductive MgB2/Al composite material with low and high volume fractions of particles were fabricated by our special 3-dimensional penetration casting (3DPC) method. The composite material showed homogeneous distribution of MgB2 particles in the Al-matrix with neither any aggregation of particles nor defects such as cracks or cavities. The critical temperature of superconducting transition (TC) was obtained via electrical resistivity and magnetization to be about 37 - 39K. The Meissner effect was also verified in the liquid He, in which a piece of the composite floated above a permanent magnet. Extruded rod and wire were successfully fabricated and they also showed onset Tc of 39 K on their electrical resistivities as the same as the billet sample.

KW - Aluminum

KW - Composite material

KW - Extrusion

KW - MgB

KW - Microstructure

KW - Superconductivity

UR - http://www.scopus.com/inward/record.url?scp=57649087280&partnerID=8YFLogxK

U2 - 10.4028/0-87849-463-4.313

DO - 10.4028/0-87849-463-4.313

M3 - 会議記事

AN - SCOPUS:57649087280

SN - 1022-6680

VL - 24-25

SP - 313

EP - 316

JO - Advanced Materials Research

JF - Advanced Materials Research

T2 - PRICM 6: The 6th Pacific Rim International Conference on Advanced Materials and Processing

Y2 - 5 November 2007 through 9 November 2007

ER -