SURFACE MODIFICATION ON OXIDE SUPERCONDUCTOR USING C02LASER
- 1 January 1991
- journal article
- research article
- Published by Taylor & Francis in Materials and Manufacturing Processes
- Vol. 6 (2) , 257-275
- https://doi.org/10.1080/10426919108934756
Abstract
Powder-sintered oxide superconductor does not allow the flow of superconducting current uniformly and the flow is concentrated on the surface. Further, it is poor in mechanical strength. Thus, properties of oxide superconductor ere so sensitive to their surface condition that some substantial modifications of the material are necessary. Powder sintered superconductor surfaces have been modified using C02 laser irradiation, The mechanical strength almost doubled and the current density was about 25 times greater after irradiation. The modified layer showed not only the elimination of many pores among grain boundaries but also preferred orientation of crystal grains.Keywords
This publication has 9 references indexed in Scilit:
- Concentration of Current to the Surface and Modification by CO2 Laser for Oxide SuperconductorPublished by Springer Nature ,1990
- Correlation of grain boundary defect structure with boundary orientation in Ba2YCu3O7−xApplied Physics Letters, 1988
- Melt Growth of High‐Critical‐Temperature Superconducting FibersJournal of the American Ceramic Society, 1988
- Microstructural Analysis in Processing of the High‐Tc Superconductor Ba2YCu3O7‐x in AirJournal of the American Ceramic Society, 1988
- Enhanced critical magnetization currents due to fast neutron irradiation in single-crystalPhysical Review B, 1987
- PREPARATION OF SUPERCONDUCTING POWDERS BY FREEZE-DRYINGAdvanced Ceramic Materials, 1987
- Composition Dependence of the Physical Properties in the Superconducting Y-Ba-Cu-O SystemJapanese Journal of Applied Physics, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987
- Laser-Induced Crystallization of Silicon on Bulk Amorphous Substrates: An OverviewMRS Proceedings, 1982