Published July 1, 2003 | Version v1
Journal article Metadata-only

The effect of Fe-magnetization on Ic(B) and Ic(α) characteristics of iron-sheathed MgB2 composite wires

Creators

  • 1. Institute of Electrical Engineering, Slovak Academy of Sciences, Dubravska cesta 9, 842 39 Bratislava (Slovakia)
  • 2. Institute of Electromagnetics, Tampere University of Technology, PO Box 692, 33 101 Tampere (Finland)

Description

Single- and four-core MgB2 composites have been made by the powder-in-tube (PIT) method using commercial MgB2 powder in an Fe sheath. Transport currents of as-deformed wires were measured at 4.2 K and external magnetic fields B = 0-4 T. Different Ic(B) curves were observed for single- and four-core wires depending on the value of the self-field current. The behaviour Ic(B) and Ic(α) is influenced by Fe sheath magnetization by self-field and external field. Field distribution and Ic(B) curves were calculated using the finite element method (FEM) and they are used for an explanation of the experimental characteristics

Availability note (English)

Available online at http://stacks.iop.org/0953-2048/16/793/u30709.pdf or at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-2048/16/793/u30709.pdf; http://www.iop.org/;
DOI
10.1088/0953-2048/16/7/309;
PII
S0953-2048(03)58760-7;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
16
Journal Issue
7
Journal Page Range
p. 793-798
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
Uzbekistan
INIS RN
34063213
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CRITICAL CURRENT; ELECTROMAGNETIC TESTING; FERRITIN; FINITE ELEMENT METHOD; IRON; MAGNESIUM BORIDES; MAGNETIC FIELDS; MAGNETIZATION; POWDERS; SUPERCONDUCTING COMPOSITES; SUPERCONDUCTING WIRES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BORIDES; BORON COMPOUNDS; CALCULATION METHODS; COMPLEXES; COMPOSITE MATERIALS; CURRENTS; ELECTRIC CURRENTS; ELEMENTS; IRON COMPLEXES; MAGNESIUM COMPOUNDS; MATERIALS; MATERIALS TESTING; MATHEMATICAL SOLUTIONS; METALLOPROTEINS; METALS; NONDESTRUCTIVE TESTING; NUMERICAL SOLUTION; ORGANIC COMPOUNDS; PROTEINS; TESTING; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENTS; WIRES