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Title: High Pressure Elastic Behavior of Synthetic Mg 3 Y 2 (SiO 4 ) 3 Garnet up to 9 GPa

The compression behavior of synthetic magnesium- (Mg-) yttrium (Y) garnet Mg 3 Y 2 (SiO 4 ) 3 has been investigated upto about 8.79 GPa at 300 K using in situ angle-dispersive X-ray diffraction and a diamond anvil cell at the beamline X17C, National Synchrotron Light Source, Brookhaven National Laboratory. No phase transition has been observed within the pressure range investigated. The unit-cell parameters and volume decreased systematically with increasing pressure, and a reliable isothermal bulk modulus ( K T 0 ) and its pressure derivative ( K T 0 ) were obtained in this study. The values of zero-pressure volume V 0 , K 0 , and K 0 refined with a third-order Birch-Murnaghan equation of state are V 0 = 1727.9 ± 0.2  Å 3 , K T 0 = 145 ± 3  GPa, and K 0 = 8.5 ± 0.9 . If K T 0 is fixed at 4, K T 0 is obtained as 158 ± 2  GPa.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1]
  1. Laboratory for High Temperature and High Pressure Study of the Earth’s Interior of Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
  2. Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  3. Laboratory for High Temperature and High Pressure Study of the Earth’s Interior of Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China, University of Chinese Academy of Sciences, Beijing 100049, China
  4. Department of Geosciences, Stony Brook University, Stony Brook, NY 11794, USA
Publication Date:
OSTI Identifier:
1227759
Grant/Contract Number:
AC02-98CH10886
Type:
Published Article
Journal Name:
Advances in Materials Science and Engineering
Additional Journal Information:
Journal Volume: 2013; Related Information: CHORUS Timestamp: 2016-08-18 14:46:43; Journal ID: ISSN 1687-8434
Publisher:
Hindawi Publishing Corporation
Sponsoring Org:
USDOE
Country of Publication:
Egypt
Language:
English