Davemaoite
CaSiO3
Birch-Murnaghan (order unspecified) · Original · 1996
Why this differs from similar rows?
Table 2 'Unweighted' fit using all data without pressure-uncertainty weighting; sibling fits instead apply weighting to all four runs or to run 13 alone.
V₀
45.58
ų
Unit cell
K₀
233
GPa
Isothermal
K′
4.800
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 45.58 | 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
- 300 K
- Pref
- —
- Structure
- cubic perovskite (Pm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)in situ synchrotron X-ray diffraction, DIA-6 cubic-anvil apparatus (SAM-85)
- Sample
- all data, Table 2 'Unweighted' (thermal pressure EOS)
Source
- Paper
- Thermal equation of state of CaSiO3 perovskite
- Authors
- Yanbin Wang; Donald J. Weidner; François Guyot
- DOI
- 10.1029/95jb03254
- Year
- 1996
- Journal
- Journal of Geophysical Research Atmospheres
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 2, Thermal Pressure Equation of State, 'Unweighted' column: K_T0 = 233(9) GPa, K'_T0 = [4.8], V0 = 45.58(4) Å^3.
Additional notes
alpha0
3.06 x 10^-5 K^-1
dKT dT P
-0.034 GPa K^-1