Corundum
Al2O3
third-order Birch-Murnaghan · Original · 2022
Why this differs from similar rows?
Table 2 Model 2 with theta_D0 fixed to 800 K; sibling rows fix theta_D0 to different values (500 K, 1,100 K), changing the fitted K_T0.
V₀
255.1
ų
Unit cell
K₀
245
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 255.1 | ų | Unit cell | — |
Reported value and unit are preserved as extracted. Z (formula units per cell) is not stored yet, so molar ↔ ų/f.u. conversion is not applied automatically.
Composition
| Oxide | Molar |
|---|---|
| Al2O3 | 1 |
Formula: Al2O3
Conditions & method
- Tref
- 300 K
- Pref
- —
- Structure
- corundum
- Method
- experiment (XRD / DAC / multianvil compression)synchrotron X-ray diffraction in laser-heated diamond anvil cells, Pt/NaCl pressure calibrants
- Sample
- Table 2, Model 2 (θD0 = 800 K fixed)
Source
- Paper
- Thermal Equations of State of Corundum and Rh2O3 (II)‐Type Al2O3 up to 153 GPa …
- Authors
- Weigang Shi; Wei Wei; Ningyu Sun; Zhu Mao; Vitali B. Prakapenka
- DOI
- 10.1029/2021jb023805
- Year
- 2022
- Journal
- Journal of Geophysical Research Solid Earth
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 2 (Thermoelastic Parameters of Corundum With Varying θD0), Model 2: KT0 = 245(1) GPa, KT0' = 4(fixed), V0 = 255.1(fixed) Å3, θD0 = 800(fixed) K, γ0 = 1.26(6), q = 0.7(3).
Additional notes
theta D0 K
800(fixed)
gamma 0
1.26(6)
q
0.7(3)