Abstract
The equation of state of δ-AlOOH was investigated using powder X-ray diffraction up to 17 GPa. Measurement of the volume at 300 K gave a value of the bulk modulus of K0= 124(2) GPa, whereas its pressure derivative was K = 13.5(7). The b axis of the unit cell is more compressible than the a and c axes - in agreement with a neutron diffraction study at high pressure by Sano-Furukawa et al. (2008). Measurements presented here show that 8-AlOOH has a compressibility 200% higher than in the previously reported equation of state by Vanpeteghem et al. (2002).
| Original language | English |
|---|---|
| Pages (from-to) | 479-485 |
| Number of pages | 7 |
| Journal | Mineralogical Magazine |
| Volume | 73 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 Apr |
Keywords
- AlOOH
- Equation of state
- High pressure
- X-ray diffraction