Davemaoite
CaSiO3
third-order Birch-Murnaghan · Cited · 2014
V₀
45.8
ų
Unit cell
K₀
238
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 45.8 | 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 |
|---|---|
| CaO | 1 |
| SiO2 | 1 |
Formula: CaSiO3
Conditions & method
- Tref
- 700 K
- Pref
- —
- Structure
- —
- Method
- experiment (XRD / DAC / multianvil compression)experiment (laser-heated DAC up to 127 GPa and 2300 K; externally heated DAC at 700 K up to 113 GPa)
- Sample
- Experiment [Noguchi et al., 2013]
Source
- Paper
- P‐V‐T equation of state of cubic CaSiO3 perovskite from first‐principles comput…
- Authors
- Kenji Kawai; Taku Tsuchiya
- DOI
- 10.1002/2013jb010905
- Year
- 2014
- Journal
- Journal of Geophysical Research Solid Earth
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table 2: Experiment b [Noguchi et al., 2013]: T_Ref = 700 K, V0 = 45.8 Å3, K_T0 = 238 GPa, K'_T0 = 4 (fixed), Θ0 = 1300, γ0 = 2.8, q = 1.2; footnote b: 'Fitted to the third-order Birch–Murnaghan EoS'
Additional notes
theta0 K
1300
gamma0
2.8
q
1.2
note
Paper notes their Grüneisen parameter is 'anomalously larger than that of other studies'