A diamond anvil cell with resistive heating for high pressure and high temperature x-ray diffraction and absorption studies

Journal Article · Fri Aug 15 04:00:00 EDT 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2968199· OSTI ID:21124122

Pasternak, Sebastien; Aquilanti, Giuliana; Pascarelli, Sakura; Lin, Zhang ^[1]; Poloni, Roberta ^[1]; Canny, Bernard ^[2]; Coulet, Marie-Vanessa ^[3]

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1. European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble, Cedex (France)
2. IMPMC-CNRS UMR, 7590 Universite Paris VI, 140 rue de Lourmel, 75015 Paris (France)
3. IM2NP-UMR CNRS, 6242 Universite Paul Cezanne Campus de St Jerome, 13397 Marseille Cedex 20 (France)

In this paper we describe a prototype of a diamond anvil cell (DAC) for high pressure/high temperature studies. This DAC combines the use of a resistive oven of 250 W power in a very small volume, associated with special conical seats for Boehler-type diamond anvils in order to have a large angular acceptance. To protect the diamond anvils from burning and to avoid the oven oxidation, the heated DAC is enclosed in a vacuum chamber. The assemblage was used to study the melting curve of germanium at high pressure (up to 20 GPa) and high temperature (up to 1200 K) using x-ray diffraction and x-ray absorption spectroscopy.

• OSTI ID: 21124122
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 8 Vol. 79; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABSORPTION
ABSORPTION SPECTROSCOPY
DIAGRAMS
DIAMONDS
GERMANIUM
HEATING
MELTING
OVENS
OXIDATION
PRESSURE RANGE GIGA PA
TEMPERATURE RANGE 1000-4000 K
X-RAY DIFFRACTION
X-RAY SPECTRA
X-RAY SPECTROSCOPY