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Title: Modified Bridgman anvils for high pressure synthesis and neutron scattering

Journal Article · · High Pressure Research
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Sciences Directorate, Neutron Scattering Div.
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Sciences Directorate, Neutron Scattering Div.; Carnegie Inst. for Science, Washington, DC (United States). Geophysical Lab.

A simple modified Bridgman design for large volume pressure anvils usable in the Paris-Edinburgh (PE) press has been demonstrated at Oak Ridge National Laboratory Spallation Neutron Source. The design shows advantages over the toroidal anvils typically used in the PE press, mainly rapid compression/decompression rates, complete absence of blow-outs upon drastic phase transitions, simplified cooling, high reliability, and relative low loads (~40 tons) corresponding to relatively high pressures (~20 GPa). It also shows advantages over existing large-volume diamond cells as sample volumes of ~2-3 mm3 can be easily and rapidly synthesized. The anvils thus allow sample sizes sufficient for in situ neutron diffraction as well as rapid synthesis of adequate amounts of new materials for ex situ analysis via total neutron scattering and neutron spectroscopy.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1567003
Journal Information:
High Pressure Research, Vol. 39, Issue 3; ISSN 0895-7959
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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Figures / Tables (4)