White, S., Kettle, B., Vorberger, J. et al. (9 more authors) (2020) Time-dependent effects in melting and phase change for laser-shocked iron. Physical Review Research. 033366. 033366. ISSN 2643-1564
Abstract
Using the Linac Coherent Light Source facility at the Stanford Linac Coherent Light Source National Accelerator Laboratory, we have observed X-ray scattering from iron compressed with laser-driven shocks to earth-core-like pressures above 400 GPa. The data show cases where melting is incomplete and we observe hexagonal-close-packed crystal structure at shock compressed densities up to 14.0 g cm-3 but no evidence of a double-hexagonal-close-packed crystal. The observation of a crystalline structure at these densities, where shock heating is expected to be in excess of the equilibrium melt temperature, may indicate superheating of the solid. These results are important for equation of state modeling at high strain rates relevant for impact scenarios and laser-driven shock-wave experiments.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020, The Author(s). |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Health Sciences (York) The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Social Sciences (York) > Social Policy and Social Work (York) |
Depositing User: | Pure (York) |
Date Deposited: | 16 Oct 2020 09:10 |
Last Modified: | 18 Dec 2024 00:17 |
Published Version: | https://doi.org/10.1103/PhysRevResearch.2.033366 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevResearch.2.033366 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:166788 |