Open AccessMgB2 thick films grown on metal substrates using the electrophoresis technique
Author(s) -
Shufang Wang,
Yabin Zhu,
Qing Zhang,
Zhen Liu,
Zhou Yue-Liang,
Zhenghao Chen,
Hangjun Lu,
Yang Gao
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.1505
Subject(s) - materials science , metal , electrophoresis , optoelectronics , chromatography , metallurgy , chemistry
MgB2 thick films were grown on metal substrates Ta, Mo and W using th e electrophoresis technique. The scanning electron microscopy and x-ray diffraction show that the grains in the MgB2 thick films are in random orientation wi th their size below 1μm. The onset temperatures of superconducting transition of MgB2/TaMgB2/MoMgB2/W are observed at 36.5, 34.8 and 33.4K, with the transition widths of 0.3, 1.5 and 2.0K, respectively. The critical current density of th e MgB2/Mo thick film at 5 K and 1T is more than 105 A/cm2. This n ew method provides a great potential for MgB2 in practical applicatio ns.