The Compressibility of a Natural Kyanite at 300 K
Journal Article
·
· Progress in Natural Sciences
The compressional behaviour of a natural kyanite, (Al{sub 1.99}Fe{sub 0.01})SiO{sub 5}, has been investigated to about 17.5 GPa at 300 K using a diamond-anvil cell and synchrotron X-ray diffraction. The pressure-volume data fitted to the third-order Birch-Murnaghan equation of state (EoS) yield an isothermal bulk modulus (K{sub 0T}) of 192 {+-} 6 GPa and pressure derivative (K'{sub 0T}) of 6 {+-} 1. When K'{sub 0T} is fixed as 4, the derived K{sub 0T} is 201 {+-} 2 GPa. These values are in excellent agreement with most experimental determinations in the literature. Consequently, it can be concluded that the compressibility of kyanite under high pressures has been accurately constrained.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source
- Sponsoring Organization:
- DOE - OFFICE OF SCIENCE
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1020192
- Report Number(s):
- BNL-96042-2011-JA; TRN: US201116%%172
- Journal Information:
- Progress in Natural Sciences, Vol. 19, Issue 10; ISSN 1002-0071
- Country of Publication:
- United States
- Language:
- English
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