In situ studies under severe plastic deformation at high pressures, employing shear diamond anvil cells, have recently gained much interest in the high-pressure community owing to their potential applications in material processing methods, mechanochemistry, and geophysics. These studies, combined with multi-scale computational simulations, provide important insights into the transient hierarchical microstructural evolution, structural phase transitions, and orientation relationship between parent and daughter phases and help establish the kinetics of strain-induced phase transitions under severe plastic deformation. The existing SDACs are mostly used in axial x-ray diffraction geometry due to geometrical constraints providing less reliable information about stress states and texture. Their asymmetric design also poses serious limitations to high-pressure shear studies on single crystals. To overcome these limitations, a new compact symmetric shear diamond anvil cell has been designed and developed for in situ high-pressure torsion studies on materials. The symmetric angular opening and short working distance in this new design help obtain a more reliable crystallographic orientation distribution function and lattice strain states up to a large Q range. Here, we present the advantages of the symmetric design with a few demonstrative studies.
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Research Article|
May 15 2024
A new compact symmetric shear diamond anvil cell for in situ high-pressure-torsion studies Available to Purchase
K. K. Pandey
;
K. K. Pandey
a)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre
, Mumbai 400085, India
and Homi Bhabha National Institute
, Anushaktinagar, Mumbai 400094, India
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
H. K. Poswal
H. K. Poswal
b)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre
, Mumbai 400085, India
and Homi Bhabha National Institute
, Anushaktinagar, Mumbai 400094, India
Search for other works by this author on:
K. K. Pandey
a)
H. K. Poswal
b)
High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre
, Mumbai 400085, India
and Homi Bhabha National Institute
, Anushaktinagar, Mumbai 400094, India
a)Author to whom correspondence should be addressed: [email protected]
Rev. Sci. Instrum. 95, 053904 (2024)
Article history
Received:
December 21 2023
Accepted:
May 01 2024
Citation
K. K. Pandey, H. K. Poswal; A new compact symmetric shear diamond anvil cell for in situ high-pressure-torsion studies. Rev. Sci. Instrum. 1 May 2024; 95 (5): 053904. https://doi.org/10.1063/5.0193048
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