1. Graphite resistive heated diamond anvil cell for simultaneous high-pressure and high-temperature diffraction experiments.
- Author
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Hwang, Huijeong, Bang, Yoonah, Choi, Jinhyuk, Cynn, Hyunchae, Jenei, Zsolt, Evans, William J., Ehnes, Anita, Schwark, Iris, Glazyrin, Konstantin, Gatta, G. Diego, Lotti, Paolo, Sanloup, Chrystèle, Lee, Yongjae, and Liermann, Hanns-Peter
- Subjects
DIAMOND anvil cell ,X-ray powder diffraction ,ISOTHERMAL compression ,GRAPHITE ,REMOTE control - Abstract
High-pressure and high-temperature experiments using a resistively heated diamond anvil cell have the advantage of heating samples homogeneously with precise temperature control. Here, we present the design and performance of a graphite resistive heated diamond anvil cell (GRHDAC) setup for powder and single-crystal x-ray diffraction experiments developed at the Extreme Conditions Beamline (P02.2) at PETRA III, Hamburg, Germany. In the GRHDAC, temperatures up to 2000 K can be generated at high pressures by placing it in a water-cooled vacuum chamber. Temperature estimates from thermocouple measurements are within +/−35 K at the sample position up to 800 K and within +90 K between 800 and 1400 K when using a standard seat combination of cBN and WC. Isothermal compression at high temperatures can be achieved by employing a remote membrane control system. The advantage of the GRHDAC is demonstrated through the study of geophysical processes in the Earth's crust and upper mantle region. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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