Stress/strain characteristics of PIT MgB2 tapes with nickel sheath - Effect of indium addition to the core

Kazumune Katagiri; Akifumi Iwamoto; Yoshitaka Shoji; Kyoji Tachikawa; Yutaka Yamada; Kazuo Watanabe; Toshiyuki Mito

doi:10.1016/j.physc.2003.08.006

Stress/strain characteristics of PIT MgB₂ tapes with nickel sheath - Effect of indium addition to the core

Kazumune Katagiri, Akifumi Iwamoto, Yoshitaka Shoji, Kyoji Tachikawa, Yutaka Yamada, Kazuo Watanabe, Toshiyuki Mito

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

15 Citations (Scopus)

Abstract

The electro-mechanical characteristics of the nickel sheathed powder-in-tube MgB₂ mono-core tapes with 10 vol% indium powder were evaluated. No marked change in the stress-strain curve was found by indium addition. On the other hand, the irreversible strain for the tape where a drastic degradation of critical current I_c begins increased from 0.25% to 0.50% by the addition of indium. The indium addition also suppressed the slight increase in I_c with strain. These characteristics of I_c with strain were compared with those reported by other researchers. Scanning electron microscope observations of the longitudinal section of degraded samples revealed that the number of micro-cracks was appreciably smaller in the indium added tapes.

Original language	English
Pages (from-to)	95-98
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	397
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physc.2003.08.006
Publication status	Published - 2003 Oct 15
Externally published	Yes

Keywords

Critical current
Indium addition
Mechanical property
MgB tape

ASJC Scopus subject areas

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

Access to Document

10.1016/j.physc.2003.08.006

Cite this

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title = "Stress/strain characteristics of PIT MgB2 tapes with nickel sheath - Effect of indium addition to the core",

abstract = "The electro-mechanical characteristics of the nickel sheathed powder-in-tube MgB2 mono-core tapes with 10 vol% indium powder were evaluated. No marked change in the stress-strain curve was found by indium addition. On the other hand, the irreversible strain for the tape where a drastic degradation of critical current Ic begins increased from 0.25% to 0.50% by the addition of indium. The indium addition also suppressed the slight increase in Ic with strain. These characteristics of Ic with strain were compared with those reported by other researchers. Scanning electron microscope observations of the longitudinal section of degraded samples revealed that the number of micro-cracks was appreciably smaller in the indium added tapes.",

keywords = "Critical current, Indium addition, Mechanical property, MgB tape",

author = "Kazumune Katagiri and Akifumi Iwamoto and Yoshitaka Shoji and Kyoji Tachikawa and Yutaka Yamada and Kazuo Watanabe and Toshiyuki Mito",

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T1 - Stress/strain characteristics of PIT MgB2 tapes with nickel sheath - Effect of indium addition to the core

AU - Katagiri, Kazumune

AU - Iwamoto, Akifumi

AU - Shoji, Yoshitaka

AU - Tachikawa, Kyoji

AU - Yamada, Yutaka

AU - Watanabe, Kazuo

AU - Mito, Toshiyuki

PY - 2003/10/15

Y1 - 2003/10/15

N2 - The electro-mechanical characteristics of the nickel sheathed powder-in-tube MgB2 mono-core tapes with 10 vol% indium powder were evaluated. No marked change in the stress-strain curve was found by indium addition. On the other hand, the irreversible strain for the tape where a drastic degradation of critical current Ic begins increased from 0.25% to 0.50% by the addition of indium. The indium addition also suppressed the slight increase in Ic with strain. These characteristics of Ic with strain were compared with those reported by other researchers. Scanning electron microscope observations of the longitudinal section of degraded samples revealed that the number of micro-cracks was appreciably smaller in the indium added tapes.

AB - The electro-mechanical characteristics of the nickel sheathed powder-in-tube MgB2 mono-core tapes with 10 vol% indium powder were evaluated. No marked change in the stress-strain curve was found by indium addition. On the other hand, the irreversible strain for the tape where a drastic degradation of critical current Ic begins increased from 0.25% to 0.50% by the addition of indium. The indium addition also suppressed the slight increase in Ic with strain. These characteristics of Ic with strain were compared with those reported by other researchers. Scanning electron microscope observations of the longitudinal section of degraded samples revealed that the number of micro-cracks was appreciably smaller in the indium added tapes.

KW - Critical current

KW - Indium addition

KW - Mechanical property

KW - MgB tape

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