Opposed type double stage cell for Mbar pressure experiment with large sample volume

Journal Article · 08 January 2020 · High Pressure Research

DOI: https://doi.org/10.1080/08957959.2019.1710744 · OSTI ID:1607423

Kono, Yoshio ^[1]; Kenney-Benson, Curtis ^[2]; Shen, Guoyin ^[2]

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1. Carnegie Inst. of Washington, Argonne, IL (United States); Ehime Univ., Matsuyama (Japan)
2. Argonne National Lab. (ANL), Argonne, IL (United States). High Pressure Collaborative Access Team

We report a new opposed type double-stage large volume cell has been developed to compress large volume samples to more than 100 GPa (Mbar) pressure. A pair of second-stage diamond anvils is introduced into the first-stage Paris-Edinburgh press. The double-stage large volume cell allows the generation of ultrahigh pressures using a large culet diameter of the second-stage diamond anvils (diameters of 0.5-1.2 mm). Pressure generation up to 131 GPa has been achieved by using the culet diameter of 0.5 mm. Sample volume of the double-stage large volume cell can be more than similar to 100 times larger than that of conventional Mbar experiment using a diamond anvil cell. The double-stage large volume cell has a large opening in the horizontal plane for X-ray measurements, which is particularly suited for the multi-angle energy dispersive X-ray diffraction measurement, thus opening a new way of in situ structural determinations of amorphous materials at Mbar pressures.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
• Sponsoring Organization: National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: AC02-06CH11357
• OSTI ID: 1607423
• Journal Information: High Pressure Research, Journal Name: High Pressure Research Journal Issue: 1 Vol. 40; ISSN 0895-7959
• Publisher: Taylor & FrancisCopyright Statement
• Country of Publication: United States
• Language: English