Abstract
In order to improve the corrosion resistance and mechanical properties of Al2O3 in caustic alkaline solutions, ceria-doped tetragonal zirconia particles were dispersed at the grain boundaries of Al2O3. The fracture toughness and fracture strength of Al2O3/ceria-doped tetragonal zirconia composites greatly increased with increasing content of the ceria-doped tetragonal zirconia particles. Alumina ceramics were susceptible to attack by concentrated NaOH solutions above 150°C, whereas no noticeable corrosion was observed for ceria-doped tetragonal zirconia polycrystals (Ce-TZP) below 250°C. The degree of weight loss of Al2O3/Ce-TZP composites in NaOH solutions appreciably decreased with increasing Ce-TZP content up to 40 mol%.
| Original language | English |
|---|---|
| Pages (from-to) | 581-585 |
| Number of pages | 5 |
| Journal | Corrosion Science |
| Volume | 33 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1992 Jan 1 |
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Materials Science(all)
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Cite this
Sato, T., Sato, S., & Okuwaki, A. (1992). The improvement in the corrosion resistance of alumina in caustic alkaline solutions obtained by dispersing ceria-doped tetragonal zirconia particles. Corrosion Science, 33(4), 581-585. https://doi.org/10.1016/0010-938X(92)90206-I