Levitation forces, relaxation and magnetic stiffness of melt-quenched yba 2 Cu 3 O x
Journal
Japanese Journal of Applied Physics
Journal Volume
29
Journal Issue
7
Pages
1257-1258
Date Issued
1990
Author(s)
Abstract
Measurements of levitation forces on melt-quenched and free sintered YBa 2 Cu 3 O x superconductors show that melt-quenched samples produce forces from 96-170% higher than sintered specimens. The force increases are correlated with higher magnetization values for the melt-quenched material. Similar increases in the magnetic stiffness were also measured. Vertical levitation force relaxation showed less than 5% decrease in one hour. These results have important favorable implications for application to superconducting bearings.
Type
journal article