The La2Zr2O7 phase was prepared from metal acetylacetonates by a sol—gel route without any intermediate phase formation. X‐ray peaks appeared at a temperature as low as 500°C at the positions expected for La2Zr2O7, although they were broad. The crystal structure of La2Zr2O7 was found to be of the fluorite type below 900°C and of thepyrochlore type above 1000°C. The substitution of a small amount of Eu for La was carried out to investigate the crystal structure from the viewpoint of fluorescence, and these results confirmed the formation of fluorite type La2Zr2O7 below 900°C.
|Original language||English (US)|
|Number of pages||3|
|Journal||Journal of the American Ceramic Society|
|State||Published - Feb 1991|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Materials Chemistry