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University of Hawai’i at Manoa

2 ARTICLES PUBLISHED IN JoVE

Chemistry

High Pressure Single Crystal Diffraction at PX^2

Dongzhou Zhang¹, Przemyslaw K. Dera¹, Peter J. Eng², Joanne E. Stubbs², Jin S. Zhang¹, Vitali B. Prakapenka², Mark L. Rivers²

¹Hawai’i Institute of Geophysics and Planetology, University of Hawai’i at Manoa, ²Center for Advanced Radiation Sources, University of Chicago

In this report, we describe detailed procedures for carrying out single crystal X-ray diffraction experiments with a diamond anvil cell at the GSECARS 13-BM-C beamline at the Advanced Photon Source. ATREX and RSV programs are used to analyze the data.

Chemistry

An Externally-Heated Diamond Anvil Cell for Synthesis and Single-Crystal Elasticity Determination of Ice-VII at High Pressure-Temperature Conditions

Xiaojing Lai^1,2, Feng Zhu², Jin S. Zhang³, Dongzhou Zhang^2,4, Sergey Tkachev⁴, Vitali B. Prakapenka⁴, Bin Chen²

¹Gemmological Institute, China University of Geosciences (Wuhan), ²Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Mānoa, ³Department of Earth and Planetary Sciences, University of New Mexico, ⁴Center for Advanced Radiation Sources, University of Chicago

This work focuses on the standard protocol for preparing the externally-heated diamond anvil cell (EHDAC) for generating high-pressure and high-temperature (HPHT) conditions. The EHDAC is employed to investigate materials in Earth and planetary interiors under extreme conditions, which can be also used in solid state physics and chemistry studies.