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Diamond anvil cell behavior up to 4 Mbar.

ABSTRACT: The diamond anvil cell (DAC) is considered one of the dominant devices to generate ultrahigh static pressure. The development of the DAC technique has enabled researchers to explore rich high-pressure science in the multimegabar pressure range. Here, we investigated the behavior of the DAC up to 400 GPa, which is the accepted pressure limit of a conventional DAC. By using a submicrometer synchrotron X-ray beam, double cuppings of the beveled diamond anvils were observed experimentally. Details of pressure loading, distribution, gasket-thickness variation, and diamond anvil deformation were studied to understand the generation of ultrahigh pressures, which may improve the conventional DAC techniques.

SUBMITTER: Li B

PROVIDER: S-EPMC5828636 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Diamond anvil cell behavior up to 4 Mbar.

Li Bing B Ji Cheng C Yang Wenge W Wang Junyue J Yang Ke K Xu Ruqing R Liu Wenjun W Cai Zhonghou Z Chen Jiuhua J Mao Ho-Kwang HK

Proceedings of the National Academy of Sciences of the United States of America 20180205 8

The diamond anvil cell (DAC) is considered one of the dominant devices to generate ultrahigh static pressure. The development of the DAC technique has enabled researchers to explore rich high-pressure science in the multimegabar pressure range. Here, we investigated the behavior of the DAC up to 400 GPa, which is the accepted pressure limit of a conventional DAC. By using a submicrometer synchrotron X-ray beam, double cuppings of the beveled diamond anvils were observed experimentally. Details o ...[more]

PMID: 29432145

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