Davemaoite
CaSiO3
unknown · Cited · 1995
Why this differs from similar rows?
Cites the observation of Tamai and Yagi (1989), whose bulk modulus has large stated uncertainty because V0 was estimated by extrapolating high-pressure data, not measured directly.
V₀
45.58
ų
Unit cell
K₀
325
GPa
Unknown
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 45.58 | 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 |
|---|---|
| CaO | 1 |
| SiO2 | 1 |
Formula: CaSiO3
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- cubic perovskite (Pm-3m)
- Method
- literature compilation / cited valuehigh-pressure experiment (cited); zero-pressure volume estimated by extrapolation of high-pressure data
- Sample
- Table 6, obs, Tamai and Yagi (1989)
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
- Cited (quoted from earlier work)
Evidence from the paper
TABLE 6. obs [3]: lattice parameter a/Å 3.57; unit cell volume V/Å3 45.58; bulk modulus / TPa 0.325; dK0/dP 4. [3] Tamai and Yagi (1989). Text: 'According to Tamai and Yagi (1989), bulk modulus has large uncertainty because zero-pressure volume cannot be determined directly and was estimated by the extrapolation of the high pressure data.'
Additional notes
reference
Tamai and Yagi (1989)
lattice parameter a A
3.57
uncertainty note
bulk modulus has large uncertainty because zero-pressure volume was estimated by extrapolation of high-pressure data; bulk modulus decreases by 11% and 4.4% when observed volume increases by 0.5% and dK0/dP is 5, respectively