Microstructure and phase development in yttrium barium(2) copper(3) oxygen(7) superconducting films prepared from carboxylate precursors

Superconducting $\rm YBa\sb2Cu\sb3O\sb{7-x}$ thin films, 0.1-1.5 μm thick, were prepared from carboxylate precursors by reactive liquid phase sintering. Processing effects on phase development, microstructure evolution, and important film properties, such as transition temperature, critical current density, and weak-link behavior, were investigated. The precursor trimethylacetate salts were dissolved in propionic acid/amylamine mixed solvent system, resulting in stable solutions suitable for coatings. Thin films were deposited onto LaAlO$\sb3$ single crystal substrates by spin-coating and were fired at 740-950$\sp\circ$C under O$\sb2$, N$\sb2$, or mixed $\rm N\sb2/O\sb2$ atmosphere.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Engineering, Materials Science

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Chu, Peir-Yung

Contributors dc:contributor

• Buchanan, Relva C.

• Engineering, Materials Science

Statement dc:rights

• Copyright 1992 Chu, Peir-Yung

Language dc:language

eng

Identifier

AAI9522199
(UMI)AAI9522199

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/23316