skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Thermal equation of state of cubic boron nitride: Implications for a high-temperature pressure scale

Abstract

The equation of state of cubic boron nitride (cBN) has been determined to a maximum temperature of 3300 K at a simultaneous static pressure of up to more than 70 GPa. Ab initio calculations to 80 GPa and 2000 K have also been performed. Our experimental data can be reconciled with theoretical results and with the known thermal expansion at 1 bar if we assume a small increase in pressure during heating relative to that measured at ambient temperature. The present data combined with the Raman measurements we presented earlier form the basis of a high-temperature pressure scale that is good to at least 3300 K.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [1];  [7]; ;  [8]
  1. Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road NW, Washington, DC 20015 (United States)
  2. (United States)
  3. Lawrence Livermore National Laboratory, University of California, 7000 East Avenue, Livermore, California 94551 (United States)
  4. School of Chemistry, The University of Edinburgh, Edinburgh (United Kingdom)
  5. Institut fuer Theoretische Physik, Freie Universitaet Berlin, Berlin, Germany and Fritz Haber Institute of the Max Planck Society, Berlin (Germany)
  6. Universite Pierre et Marie Curie and Insitut de Physique du Globe de Paris, Paris (France)
  7. (United Kingdom)
  8. European Synchrotron Radiation Facility, Grenoble (France)
Publication Date:
OSTI Identifier:
20951528
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 22; Other Information: DOI: 10.1103/PhysRevB.75.224114; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMBIENT TEMPERATURE; BORON NITRIDES; EQUATIONS OF STATE; HEATING; PRESSURE RANGE GIGA PA; PRESSURE RANGE MEGA PA 10-100; RAMAN SPECTRA; SEMICONDUCTOR MATERIALS; TEMPERATURE RANGE 0400-1000 K; THERMAL EXPANSION

Citation Formats

Goncharov, Alexander F., Lawrence Livermore National Laboratory, University of California, 7000 East Avenue, Livermore, California 94551, Crowhurst, Jonathan C., Dewhurst, John K., Sharma, Sangeeta, Sanloup, Chrystele, Gregoryanz, Eugene, School of Physics and Center for Science at Extreme Conditions, University of Edinburgh, Edinburgh, Guignot, Nicolas, and Mezouar, Mohamed. Thermal equation of state of cubic boron nitride: Implications for a high-temperature pressure scale. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.224114.
Goncharov, Alexander F., Lawrence Livermore National Laboratory, University of California, 7000 East Avenue, Livermore, California 94551, Crowhurst, Jonathan C., Dewhurst, John K., Sharma, Sangeeta, Sanloup, Chrystele, Gregoryanz, Eugene, School of Physics and Center for Science at Extreme Conditions, University of Edinburgh, Edinburgh, Guignot, Nicolas, & Mezouar, Mohamed. Thermal equation of state of cubic boron nitride: Implications for a high-temperature pressure scale. United States. doi:10.1103/PHYSREVB.75.224114.
Goncharov, Alexander F., Lawrence Livermore National Laboratory, University of California, 7000 East Avenue, Livermore, California 94551, Crowhurst, Jonathan C., Dewhurst, John K., Sharma, Sangeeta, Sanloup, Chrystele, Gregoryanz, Eugene, School of Physics and Center for Science at Extreme Conditions, University of Edinburgh, Edinburgh, Guignot, Nicolas, and Mezouar, Mohamed. Fri . "Thermal equation of state of cubic boron nitride: Implications for a high-temperature pressure scale". United States. doi:10.1103/PHYSREVB.75.224114.
@article{osti_20951528,
title = {Thermal equation of state of cubic boron nitride: Implications for a high-temperature pressure scale},
author = {Goncharov, Alexander F. and Lawrence Livermore National Laboratory, University of California, 7000 East Avenue, Livermore, California 94551 and Crowhurst, Jonathan C. and Dewhurst, John K. and Sharma, Sangeeta and Sanloup, Chrystele and Gregoryanz, Eugene and School of Physics and Center for Science at Extreme Conditions, University of Edinburgh, Edinburgh and Guignot, Nicolas and Mezouar, Mohamed},
abstractNote = {The equation of state of cubic boron nitride (cBN) has been determined to a maximum temperature of 3300 K at a simultaneous static pressure of up to more than 70 GPa. Ab initio calculations to 80 GPa and 2000 K have also been performed. Our experimental data can be reconciled with theoretical results and with the known thermal expansion at 1 bar if we assume a small increase in pressure during heating relative to that measured at ambient temperature. The present data combined with the Raman measurements we presented earlier form the basis of a high-temperature pressure scale that is good to at least 3300 K.},
doi = {10.1103/PHYSREVB.75.224114},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 22,
volume = 75,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2007},
month = {Fri Jun 01 00:00:00 EDT 2007}
}