Ferropericlase
(Mg1-y,Fey)O
Vinet · Original · 2000
V₀
18.682
ų
Unknown basis
K₀
160.200
GPa
Isothermal
K′
4.521
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 18.682 | ų | 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 |
|---|---|
| MgO | 1 |
Formula: (Mg1-yFey)O
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- unknownthermoelastic model with input parameters determined from experimental data at room temperature and zero pressure
- Sample
- Table 1 input parameters, q_i(0) column for Mw
Source
- Paper
- Thermoelasticity of silicate perovskites and magnesiowustite and its implicatio…
- Authors
- Juichiro Hama; Kaichi Suito; Orson L. Anderson
- DOI
- 10.2138/am-2000-2-310
- Year
- 2000
- Journal
- American Mineralogist
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 1. The input parameters ... (Mg1-y,Fey)O Mw: V0(ų) 18.682, K0(GPa) 160.2, K0' 4.521, Θ0(K) 778, f44 1.37; 'Our model (Hama and Suito 1999) explains the P-V data to ~200 GPa at room temperature, shock-wave data to ~200 GPa ... for MgO.'
Additional notes
Theta0 K
778
f44
1.37
iron composition coefficients
{
"V0": {
"a1": "1.066 × 10^-1",
"a2": "-4.434 × 10^-2",
"a3": "7.344 × 10^-3"
},
"K0": {
"a1": "-2.039 × 10^-2",
"a2": "3.953 × 10^-1",
"a3": "-2.885 × 10^-1"
},
"K0_prime": {
"a1": "1.000 × 10^0",
"a2": "-4.357 × 10^0",
"a3": "3.125 × 10^0"
}
}
source model
Hama and Suito (1999)
note
Parameters refer to the static lattice at zero pressure; a1–a3 coefficients describe dependence on iron fraction y