Periclase
MgO
unknown · Cited · 2009
V₀
—
Unknown basis
K₀
17.300
GPa
Isothermal
K′
—
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 |
|---|---|
| MgO | 1 |
Formula: MgO
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- B1 rocksalt (Fm-3m)
- Method
- unknownphenomenological isothermal EOS calculation compared with pressure-volume data of Anderson and Zou [11]
- Sample
- Table II input parameters for MgO
Source
- Paper
- Pressure Dependence of Interatomic Separation and Thermal Expansivity for Alkal…
- Authors
- Quan Liu
- DOI
- 10.12693/aphyspola.115.709
- Year
- 2009
- Journal
- Acta Physica Polonica A
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
Table II: Values of input parameters used in the present work. MgO: r0 = 2.105 Å [15], alpha0 = 0.312 [10^-4 k^-1] [15], B_T0 = 173 [kbar] [15], delta_T0 = 4.29 [16]. 'Anderson and Zou [11] have reported the pressure-volume data for MgO.'
Additional notes
r0
2.105 Å (interatomic separation at P = 0, cited from [15]); no unit-cell or molar V0 is reported, so V0 fields are left empty
alpha0
0.312 x 10^-4 k^-1 (volume thermal expansion coefficient at V = V0, cited from [15])
delta T0
4.29 (Anderson-Grueneisen parameter at V = V0, cited from [16])
k
1.5 (dimensionless thermoelastic parameter, assumed following Anderson et al. [6, 7])
note on Kp
This EOS formulation does not use K' (K prime); pressure dependence of B_T is expressed through delta_T0 and k via Eq. (12)
pressure range
calculations performed up to ~45 kbar (Table VI extends to 109.00 kbar for MgO)
parameter sources
input parameters cited from references [15] and [16], not fitted in this study