Ferropericlase
(Mg0.240Fe0.717□0.043)O (Fe75)
third-order Birch-Murnaghan · Original · 2002
V₀
78.082
ų
Unit cell
K₀
151.300
GPa
Isothermal
K′
5.550
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 78.082 | 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 |
|---|---|
| MgO | 0.24 |
| FeO | 0.717 |
Formula: (Mg0.240Fe0.717□0.043)O
Conditions & method
- Tref
- —
- Pref
- 0.000 GPa
- Structure
- B1 rocksalt (Fm-3m)
- Method
- experiment (XRD / DAC / multianvil compression)single-crystal X-ray diffraction in diamond anvil cell (quartz internal pressure standard), static compression to 7.2 GPa
- Sample
- Fe75 single crystal, ΣFe/(ΣFe+Mg) = 0.749(3), Fe3+/ΣFe = 0.12(3)
Source
- Paper
- Structure and elasticity of single‐crystal (Mg,Fe)O and a new method of generat…
- Authors
- Steven D. Jacobsen; Hans‐J. Reichmann; H. Spetzler; S. J. Mackwell; Joseph R. Smyth; R. J. Angel; Catherine McCammon
- DOI
- 10.1029/2001jb000490
- Year
- 2002
- Journal
- Journal of Geophysical Research Atmospheres
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
For sample Fe75 (Mg0.240Fe0.717□0.043O) we obtain EoS parameters V0 = 78.082(3) Å3, K0T = 151.3(6) GPa, and K' = 5.55(19). Results of the EoS fitting are also listed in Table 6.
Additional notes
experimental zero pressure volume
78.084(4) Å3 (measured in DAC without pressure fluid)
max pressure
7.2 GPa (7 volumes; sample cracked around 8 GPa)
ambient cell parameter Table1
a = 4.2740(1) Å
note
Contains ~2 at. % Al and magnetite lamellae observed by SEM