Published February 2006 | Version v1
Journal article Metadata-only

Effect of aromatic hydrocarbon addition on in situ powder-in-tube processed MgB2 tapes

Creators

  • 1. General Technology Division, Central Japan Railway Company, 1545-33, Ohyama, Komaki, Aichi 485-0801, Japan (Japan)
  • 2. Construction Department, Central Japan Railway Company, 2-1-85, Kounan, Minato-ku, Tokyo 108-8204, Japan (Japan)
  • 3. Superconducting Materials Center, National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047 (Japan)

Description

We fabricated in situ powder-in-tube processed MgB2/Fe tapes using the aromatic hydrocarbons benzene, naphthalene, and thiophene as additives, and investigated the superconducting properties. We found that these aromatic hydrocarbons were very effective for increasing the Jc values. The Jc values of 20 mol% benzene-added tapes reached 130 A mm-2 at 4.2 K and 10 T. This value was almost comparable to that of 10 mol% SiC-added tapes and about four times higher than that of tapes with no additions. Microstructural analyses suggest that this Jc enhancement is due to both the substitution of carbon for boron in MgB2 and the smaller MgB2 grain size

Availability note (English)

Available online at http://stacks.iop.org/0953-2048/19/175/sust6_2_004.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/0953-2048/19/175/sust6_2_004.pdf;
DOI
10.1088/0953-2048/19/2/004;
PII
S0953-2048(06)09304-3;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
19
Journal Issue
2
Journal Page Range
p. 175-177
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37063509
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BENZENE; CRITICAL CURRENT; CURRENT DENSITY; GRAIN SIZE; MAGNESIUM BORIDES; NAPHTHALENE; POWDERS; THIOPHENE; TUBES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; AROMATICS; BORIDES; BORON COMPOUNDS; CONDENSED AROMATICS; CURRENTS; ELECTRIC CURRENTS; HETEROCYCLIC COMPOUNDS; HYDROCARBONS; MAGNESIUM COMPOUNDS; MICROSTRUCTURE; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; SIZE