Stability of tetragonal phase in ZrO2powder
โ Scribed by Takao Itoh
- Publisher
- Springer
- Year
- 1986
- Tongue
- English
- Weight
- 152 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0261-8028
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๐ SIMILAR VOLUMES
ZrO2-Gd203 alloys containing 2, 3, 5 and 8 mol. % Gd203 have been prepared by mixed oxide (MO), hybrid sol-gel (SG), and co-precipitation (CP) routes. No tetragonal (t) phase is retained in the MO method, while 100% t phase is obtained in the calcined CP samples; the SG method leads to only partial
Ceria-stabilized tetragonal zirconia polycrystals show high toughness and high resistance to the low-temperature ageing degradation. However, ceria is less effective in stabilizing tetragonal zirconia compared to yttria and other trivalent oxides. The tetravalent oxide of Ce02 can be easily reduced