Abstract
The effects of NiO solid solution into yttria fully stabilized cubic zirconia (YSZ) on the phase stability and electrical properties of YSZ were investigated. Time-dependent conductivity change of NiO-doped YSZ at 1000 °C was also investigated. Raman spectra showed that weak tetragonal peaks in the YSZ monolith disappeared when NiO was added. In addition, the time-dependent conductivity of YSZ monolith sharply decreased after the first 30 h of annealing at 1000 °C, whereas NiO-doped YSZ did not show such decline. Therefore, the solid solution of NiO enhanced YSZ stability and produced time-dependent conductivity change with moderate time.
Original language | English |
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Pages (from-to) | 1624-1628 |
Number of pages | 5 |
Journal | Materials Letters |
Volume | 57 |
Issue number | 9-10 |
DOIs | |
Publication status | Published - 2003 Feb 1 |
Keywords
- Cubic zirconia
- Electrical properties
- High-temperature stability
- Ionic conductivity
- Nickel oxide
- Phase stability
- Raman spectroscopy
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering