Davemaoite
CaSiO3
unknown · Original · 1995
Why this differs from similar rows?
From Table 7 pressure-dependence WMIN calculation (K0=0.245 TPa), distinct from the Table 6 static lattice-energy calculation (K0=0.247 TPa) in sibling row 1283.
V₀
—
Unknown basis
K₀
245
GPa
Unknown
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 |
|---|---|
| CaO | 1 |
| SiO2 | 1 |
Formula: CaSiO3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- cubic perovskite (Pm-3m)
- Method
- unknownstatic energy minimization with empirical interatomic potentials (WMIN program), pressure-dependence calculation
- Sample
- Table 7, calculated pressure dependencies, this study
Source
- Paper
- Calculation models of structures and physical properties of CaSiO3, CaMgSi2O6, …
- Authors
- Taketoshi Taniguchi; Masayuki Okuno; Takeo MATSUMOTΟ
- DOI
- 10.2465/minerj.17.290
- Year
- 1995
- Journal
- Mineralogical Journal
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
Table 7. The calculated bulk modulus (TPa) and mean linear compressibilities (TPa-1) of atomic bonds. CaSiO3 perovskite: bulk modulus / TPa 0.245; Si-O (VI) 1.349; Ca-O (XII) 1.349.
Additional notes
mean linear compressibility Si O VI TPa-1
1.349
mean linear compressibility Ca O XII TPa-1
1.349
note
Value differs slightly from Table 6 calc (WMIN) bulk modulus of 0.247 TPa