MICROSTRUCTURE CONTROL OF AN OXIDE SUPERCONDUCTOR BY A HYBRIDIZATION PROCESS THROUGH GRINDING

Authors
AWANO M TAKAO Y KUWAHARA Y
Citation
M. Awano et al., MICROSTRUCTURE CONTROL OF AN OXIDE SUPERCONDUCTOR BY A HYBRIDIZATION PROCESS THROUGH GRINDING, Advanced powder technology, 7(3), 1996, pp. 233-244
Citations number
8
Categorie Soggetti
Engineering, Chemical
Journal title
Advanced powder technology → ACNP
ISSN journal
09218831
Volume
7
Issue
3
Year of publication
1996
Pages
233 - 244
Database
ISI
SICI code
0921-8831(1996)7:3<233:MCOAOS>2.0.ZU;2-K
Abstract
A synthetic process for the nanocomposite of a Ba2YCu3O7-y superconduc tor and silver was examined. Hybridization through grinding promoted t he unform dispersion of silver ultrafine particles (of the order of 10 nm diameter) in the Ba2YCu3O7-y matrix. Hot isostatic pressing (HIP) sintering suppressed the undesirable grain growth of silver of the ord er of 100-300 nm in the sintered body. Enhancement of both superconduc ting transport current and magnetic flux pinning properties was promot ed by the control of the post-annealing condition of the HIP body.