delta-AlOOH
AlOOH
Birch-Murnaghan (order unspecified) · Original · 2002
Why this differs from similar rows?
Fit with K'0T fixed to 4, giving K0T=252 GPa; sibling row instead fits both parameters freely, yielding a different K0T=228 and K'=7.
V₀
56.54
ų
Unit cell
K₀
252
GPa
Isothermal
K′
4
dimensionless
Volume (V₀)
| Value | Unit | Basis | Z |
|---|---|---|---|
| 56.54 | 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 |
|---|---|
| Al2O3 | 0.5 |
| H2O | 0.5 |
Formula: AlOOH
Conditions & method
- Tref
- —
- Pref
- —
- Structure
- other / unspecified
- Method
- experiment (XRD / DAC / multianvil compression)angle-dispersive x-ray diffraction (synchrotron, Mao-Bell diamond-anvil cell, He pressure medium, ruby fluorescence pressure scale), decompression
- Sample
- pure delta-AlOOH synthesized at 25.5 GPa and 1005 degC from Al(OH)3
Source
- Paper
- Equation of state of the hydrous phase δ‐AlOOH at room temperature up to 22.5 G…
- Authors
- C. B. Vanpeteghem; Eiji Ohtani; Tadashi Kondo
- DOI
- 10.1029/2001gl014224
- Year
- 2002
- Journal
- Geophysical Research Letters
- Origin
- Original (measured or fitted in the source paper)
Evidence from the paper
A least-square fit using a third order Birch-Murnaghan equation of state produces a bulk modulus K0T = 252 (±3) GPa when the pressure derivative K'0T is fixed at 4. Table 1 (P=0): a 4.715(8), b 4.228(3), c 2.836(2), V 56.54(9).
Additional notes
pressure range
up to 22.5 GPa
table2 row
δ-AlOOH: 252 ± 3 GPa, K' = 4, present work