Table 1 Summary of the main results of high-pressure studies of CeO2a
Phase Transition | ||||||||
|---|---|---|---|---|---|---|---|---|
Grain size | DMb | Beginning | Ending | Maximum Pressure (GPa) | Pressure standard | PTM | Method | Reference |
4.7 nm | TEM | -- | -- | 28 | Ruby | 16:3:1 | ADXD | |
5.6 nm | TEM | -- | -- | 28 | methanol:ethanol:water | |||
5 nm | TEM | -- | -- | 34 | Ruby | 4:1methanol:ethanol | Raman | |
10 nm | -- | -- | -- | 38 | Pt | None | EDXD | |
12 nm | TEM | -- | -- | 51 | Ruby | 4:1 methanol:ethanol | ADXD | |
12 nm | TEM/XRD | 40 | -- | 40 | Ruby | Silicone oil | ADXD | This study |
12 nm | TEM/XRD | 39 | -- | 39 | Au | None | ADXD | This study |
12 nm | TEM/XRD | -- | -- | 38 | Ruby | 4:1 methanol:ethanol | ADXD | This study |
36 nm | XRD | 34.7 | -- | 35 | Ruby | 4:1 methanol:ethanol | Raman | |
150 nm | TEM | 35 | >55 | 55 | Ruby | 4:1 methanol:ethanol | Raman | |
Bulk | -- | 31.5(1.0) | 38 | 70 | Ruby | -- | EDXD | |
5 μm | -- | 27 | -- | 27 | Ruby | None | ADXD | |
12 nm | -- | 26.5(2) | -- | 36 | Ruby | CsCl | Raman | |
12 nm | -- | 26.5(2) | -- | 36 | Ruby | None | ||
9-15 nm | -- | 22.3 | -- | 38.6 | Pt | None | EDXD | |
