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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/36665
Record Status
Checked
Record Id
36665
Title
Thermoelastic behavior of graphite from in situ high-pressure high-temperature neutron
Contributors
S Lowitzer (Universität Frankfurt am Main)
,
B Winkler (Universität Frankfurt am Main)
,
MG Tucker (CCLRC Rutherford Appleton Lab.)
Abstract
We have studied the pressure-volume-temperature relationship of graphite up to pressures of 6 GPa and temperatures up to 1250 K. Neutron powder diffractograms were collected on the PEARL/HiPr diffractometer at ISIS/Rutherford Appleton Laboratory, UK. The heatable Paris-Edinburgh cell was employed. Temperature was measured by neutron resonance absorption spectroscopy. The pressure was obtained from an internal MgO standard. The Rietveld-refined data were fitted with several equation of states. The best fit is obtained with B=38 GPa, B'=dB/dP=9 and a temperature derivative dB/dT=−0.002 GPa K−1. These values are compared to data obtained earlier from diffraction measurements and ultrasound spectroscopy.
Organisation
CCLRC
,
ISIS
,
ISIS-PEARL
Keywords
Physics
,
Materials
,
ISIS 2007
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev B
73 (2006): 214115.
doi:10.1103/PhysRevB.73.214115
2006
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