In situ observation of a phase transition in silicon carbide under shock compression using pulsed x-ray diffraction
Author(s): Tracy, Sally J; Smith, Raymond F; Wicks, June K; Fratanduono, Dayne E; Gleason, Arianna E; et al
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Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Tracy, Sally J | - |
dc.contributor.author | Smith, Raymond F | - |
dc.contributor.author | Wicks, June K | - |
dc.contributor.author | Fratanduono, Dayne E | - |
dc.contributor.author | Gleason, Arianna E | - |
dc.contributor.author | Bolme, Cindy A | - |
dc.contributor.author | Prakapenka, Vitali B | - |
dc.contributor.author | Speziale, Sergio | - |
dc.contributor.author | Appel, Karen | - |
dc.contributor.author | Fernandez-Pañella, Amalia | - |
dc.contributor.author | Lee, Hae J | - |
dc.contributor.author | MacKinnon, Andy | - |
dc.contributor.author | Tavella, Franz | - |
dc.contributor.author | Eggert, Jon H | - |
dc.contributor.author | Duffy, Thomas S | - |
dc.date.accessioned | 2022-01-25T14:58:04Z | - |
dc.date.available | 2022-01-25T14:58:04Z | - |
dc.date.issued | 2019-06-17 | en_US |
dc.identifier.citation | Tracy, S. J., R. F. Smith, J. K. Wicks, D. E. Fratanduono, A. E. Gleason, C. A. Bolme, V. B. Prakapenka et al. "I n s i t u observation of a phase transition in silicon carbide under shock compression using pulsed x-ray diffraction." Physical Review B 99, no. 21 (2019): 214106. doi: 10.1103/PhysRevB.99.214106. | en_US |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://arks.princeton.edu/ark:/88435/pr14t6f294 | - |
dc.description.abstract | The behavior of silicon carbide (SiC) under shock compression is of interest due to its applications as a high-strength ceramic and for general understanding of shock-induced polymorphism. Here we use the Matter in Extreme Conditions beamline of the Linac Coherent Light Source to carry out a series of time-resolved pump-probe x-ray diffraction measurements on SiC laser-shocked to as high as 206 GPa. Experiments on single crystals and polycrystals of different polytypes show a transformation from a low-pressure tetrahedral phase to the high-pressure rocksalt-type (B1) structure. We directly observe coexistence of the low- and high-pressure phases in a mixed-phase region and complete transformation to the B1 phase above 200 GPa. The densities measured by x-ray diffraction are in agreement with both continuum gas-gun studies and a theoretical B1 Hugoniot derived from static-compression data. Time-resolved measurements during shock loading and release reveal a large hysteresis upon unloading, with the B1 phase retained to as low as 5 GPa. The sample eventually reverts to a mixture of polytypes of the low-pressure phase at late times. Our study demonstrates that x-ray diffraction is an effective means to characterize the time-dependent structural response of materials undergoing shock-induced phase transformations at megabar pressures. | en_US |
dc.format.extent | 214106 | en_US |
dc.language.iso | en_US | en_US |
dc.relation.ispartof | Physical Review B | en_US |
dc.rights | Final published version. Article is made available in OAR by the publisher's permission or policy. | en_US |
dc.title | In situ observation of a phase transition in silicon carbide under shock compression using pulsed x-ray diffraction | en_US |
dc.type | Journal Article | en_US |
dc.identifier.doi | doi:10.1103/PhysRevB.99.214106 | - |
dc.identifier.eissn | 2469-9969 | - |
pu.type.symplectic | http://www.symplectic.co.uk/publications/atom-terms/1.0/journal-article | en_US |
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