Controlled processing and properties of large Pt-doped Y–Ba–Cu–O pseudocrystals for electromagnetic applications
- 1 November 1997
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 12 (11) , 2889-2900
- https://doi.org/10.1557/jmr.1997.0383
Abstract
The quality and preparation of Sm–Ba–Cu–O (SmBCO) seeds, the level of Pt-doping, and the temperature distribution in the thermal processing system have been investigated in detail and identified as key processing factors in the fabrication of large melt processed Pt dope Y–Ba–Cu–O pseudocrystals. Optimization of these process variables and features has been performed to enable controlled processing of these materials up to several centimeters in diameter. Inhomogeneities and second phases present in the YBCO-Pt pseudocrystal microstructure have been analyzed and correlated with a variation of superconducting properties within the bulk of the sample. These observations have clear implications for the controlled processing of large YBCO-Pt pseudocrystals for electromagnetic applications.Keywords
This publication has 30 references indexed in Scilit:
- Preparation and properties of spray dried precursor powder for melt-processed bulk YBCO ceramicsJournal of Materials Research, 1996
- Processing of bulk YBa2Cu3O7−δ ceramics prior to peritectic solidificationJournal of Materials Science, 1995
- Critical current density and microstructure of melt-processed YBa2Cu3Ox with PtO2 additionsPhysica C: Superconductivity and its Applications, 1994
- An Improvement of the Static and Dynamic Characteristics of Superconducting Magnetic Bearings Using MPMG-YBaCuOPublished by Springer Nature ,1993
- Characterization of Superconducting Magnetic Bearings (Runnout Performance at High Speed Rotation)Published by Springer Nature ,1993
- Effect of Y2BaCuOx precipitates on flux pinning in melt-processed YBa2Cu3OxPhysica C: Superconductivity and its Applications, 1992
- Semisolid solidification of high temperature superconducting oxidesJournal of Applied Physics, 1992
- The properties of YBCO superconductors prepared by a new approach: the 'powder melting process'Superconductor Science and Technology, 1990
- Texture processing of extruded YBa2Cu3O6+x wires by zone meltingPhysica C: Superconductivity and its Applications, 1990
- A New Process with the Promise of High Jc in Oxide SuperconductorsJapanese Journal of Applied Physics, 1989