MgSiO3 glass (silicate melt analog, deep-mantle relevant)
MgSiO3
unknown · Cited · 2025
V₀
36.24
cm³/mol
Molar
K₀
16.900
GPa
Isothermal
K′
5.900
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 36.24 | cm³/mol | Molar | — |
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 |
| SiO2 | 1 |
Formula: MgSiO3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (XRD / DAC / multianvil compression)X-ray absorption density measurement (DAC)
- Sample
- —
Source
- Paper
- Research progresses on the structure, phase transition and physical properties …
- Authors
- Zixing Wang; Zheng-yong REN; Lei Liu
- DOI
- 10.3724/j.issn.1007-2802.20240151
- Year
- 2025
- Journal
- Bulletin of Mineralogy Petrology and Geochemistry
- Origin
- Cited (quoted from earlier work)
Evidence from the paper
利用4阶BM方程拟合吸收法的实验结果,得到的拟合参数为:初始体积V0=(36.24±0.36) cm³/mol (根据测量的初始密度确定,在拟合过程中固定), K0=(16.9±3.2) GPa, K'0=(5.9±1.3), K''0=(-0.004±0.77) GPa⁻¹
Additional notes
Kpp
(-0.004±0.77) GPa^-1
V0 note
determined from measured initial density, fixed during fitting
context
MgSiO3 glass as analog for silicate melt at core-mantle boundary conditions