Wüstite
Fe0.943O
third-order Birch-Murnaghan · Original · 1990
Why this differs from similar rows?
Reports the isentropic pressure derivative (dKS/dP)_S = 4.84, derived from the isothermal value (4.90, sibling row) via a thermodynamic identity, used to construct the Hugoniot.
V₀
—
Unknown basis
K₀
154.900
GPa
Adiabatic
K′
4.840
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| — | — | Unknown basis | — |
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 |
|---|---|
| FeO | 0.943 |
Formula: Fe0.943O
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- experiment (shock wave)isentropic derivative from measured (∂KS/∂P)T via thermodynamic identity; used to construct Hugoniot
- Sample
- synthetic single-crystal wüstite (this study)
Source
- Paper
- Elasticity, shear‐mode softening and high‐pressure polymorphism of wüstite (Fe1…
- Authors
- Ian Jackson; S. K. Khanna; A. Revcolevschi; J. Berthon
- DOI
- 10.1029/jb095ib13p21671
- Year
- 1990
- Journal
- Journal of Geophysical Research Atmospheres
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
"The isentrope for the B1 phase is based on K0S = 154.9 GPa and (∂KS/∂P)S = 4.84 derived from the ultrasonic data of the present study." (Fig. 5 caption); "The isentropic pressure derivative (∂KS/∂P)S = 4.84 is determined from the measured value of (∂KS/∂P)T".
Additional notes
gamma0
1.63
n dlngamma dlnV
1