Published July 1, 1991
| Version v1
Journal article
Surface degradation of YBa2Cu3O7-δ superconductors on exposure to air and humidity
Creators
- 1. University of Florida, Gainesville, Florida 32611-2066 (USA)
Description
Surface modifications from exposure of YBa2Cu3O7-δ pellets and thin films of the 1:2:3 composition to ambient atmosphere and 85% relative humidity at 50 degree C were measured using x-ray photoelectron spectroscopy and scanning Auger electron multiprobe. Surface formation of BaCO3 and Ba(OH)2 was detected. The surface layer of the sintered pellets did not have any Cu after 48 h of moisture treatment. The degradation in the thin-film samples was substantially less. The rate of degradation appears to be controlled by grain-boundary diffusion
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 44
- Journal Issue
- 2
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 727-733
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22068626
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AIR; AUGER ELECTRON SPECTROSCOPY; BARIUM OXIDES; CHEMICAL REACTIONS; COPPER OXIDES; CORROSION; DIFFUSION; GRAIN BOUNDARIES; HIGH-TC SUPERCONDUCTORS; HUMIDITY; PHOTOELECTRON SPECTROSCOPY; SURFACE TREATMENTS; THIN FILMS; X RADIATION; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; FILMS; FLUIDS; GASES; IONIZING RADIATIONS; MICROSTRUCTURE; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; SPECTROSCOPY; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS