Centers and Institutes
Published July 20, 2016 | Version v1
Journal article Open

Terapascal static pressure generation with ultrahigh yield strength nanodiamond

Creators

  • 1. University of Bayreuth
  • 2. University of Antwerp
  • 3. European Synchrotron Radiation Facility
  • 4. University of Chicago
  • 5. Karlsruhe Institute of Technology
  • 6. Immanuel Kant Baltic Federal University

Description

Studies of materials' properties at high and ultrahigh pressures lead to discoveries of unique physical and chemical phenomena and a deeper understanding of matter. In high-pressure research, an achievable static pressure limit is imposed by the strength of available strong materials and design of high-pressure devices. Using a high-pressure and high-temperature technique, we synthesized optically transparent microballs of bulk nanocrystalline diamond, which were found to have an exceptional yield strength (~460 GPa at a confining pressure of ~70 GPa) due to the unique microstructure of bulk nanocrystalline diamond. We used the nanodiamond balls in a double-stage diamond anvil cell high-pressure device that allowed us to generate static pressures beyond 1 TPa, as demonstrated by synchrotron x-ray diffraction. Outstanding mechanical properties (strain-dependent elasticity, very high hardness, and unprecedented yield strength) make the nanodiamond balls a unique device for ultrahigh static pressure generation. Structurally isotropic, homogeneous, and made of a low-Z material, they are promising in the field of x-ray optical applications.

Data availability

All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors.

Files

sciadv.1600341.pdf

Files (2.4 MB)

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Additional details

Identifiers

DOI
10.1126/sciadv.1600341
Other
oai:uchicago.tind.io:11038

Funding

Bundesministerium für Bildung und Forschung
05K13WC3
Deutsche Forschungsgemeinschaft
DU 954-8/1
Deutsche Forschungsgemeinschaft
DU 945/6-2

UChicago Information

Division(s)
Institutes & Centers
Center(s) or Institute(s)
Center for Advanced Radiation Sources