Material strength at high pressure

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dc.contributor.authorLonsdale, C. M.
dc.contributor.authorMcHardy, J. D.
dc.contributor.authorStorm, C. V.
dc.contributor.authorRoy, C. R.
dc.contributor.authorMacLeod, S. G.
dc.contributor.authorMcMahon, M. I.
dc.date.accessioned2025-01-23T11:09:19Z
dc.date.available2025-01-23T11:09:19Z
dc.date.freetoread2025-01-23
dc.date.issued2024-11-13
dc.date.pubOnline2025-01-23
dc.description.abstractOver the past 30 years, advancements in the focusing schemes, beam quality, and X-ray brilliance at synchrotron light sources have enabled the reduction of X-ray beam dimensions from tens of micrometers into the sub-micrometer domain. These developments have enabled spatial mapping of the stress state at multi-megabar pressures in the diamond anvil cell. This work presents angle-dispersive X-ray diffraction results collected on beamline P02.2 at the Petra-III synchrotron using a beam size (FWHM) of 0.85 x 0.85 microns on an Ir sample. Variations in the local stress state in the sample were analysed through two approaches based on X-ray diffraction peak shifting and broadening. The results of the two methods are compared and highlight the effectiveness of Bi as a pressure transmitting medium, even at multi-megabar pressures. We look to apply these techniques to future experiments into obtaining more precise investigations of phase transitions and material strength at extreme pressure.
dc.description.conferencenameDefence and Security Doctoral Symposia 2024 (DSDS24)
dc.description.sponsorshipEngineering and Physical Sciences Research Council (EPSRC)
dc.description.sponsorshipAWE Scholarship
dc.identifier.citationLonsdale CM, McHardy JD, Storm CV, et al., (2024) Material strength at high pressure - Poster. DSDS24, Cranfield Defence and Security Doctoral Symposia 2024, 13-14 November 2024, STEAM Museum, Swindon, UK
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23436
dc.identifier.urihttps://doi.org/10.57996/cran.ceres-2723
dc.language.isoen
dc.publisherCranfield University Defence and Security
dc.rightsAttribution-NonCommercial 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectHigh Pressure
dc.subjectDiamond Anvil Cells
dc.subjectMaterial Strength
dc.subjectStress State
dc.subjectDiffraction Mapping
dc.titleMaterial strength at high pressure
dc.typePoster
dcterms.coverageSTEAM Museum, Swindon, UK
dcterms.dateAccepted2024-09-20
dcterms.temporal.endDate14-Nov-2024
dcterms.temporal.startDate13-Nov-2024

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