The Compressibility of a Natural Kyanite at 300 K

Journal Article · Wed Dec 31 23:00:00 EST 2008 · Progress in Natural Sciences

DOI:https://doi.org/10.1016/j.pnsc.2009.04.001· OSTI ID:1020192

Liu, X; Shieh, S; Fleet, M; Zhang, L

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 Laboratory (BNL) National Synchrotron Light Source
• Sponsoring Organization: DOE - OFFICE OF SCIENCE
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1020192
• Report Number(s): BNL--96042-2011-JA
• Journal Information: Progress in Natural Sciences, Journal Name: Progress in Natural Sciences Journal Issue: 10 Vol. 19; ISSN 1002-0071
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
COMPRESSIBILITY
SYNCHROTRONS
X-RAY DIFFRACTION
national synchrotron light source