Structure of boron carbide under laser-based shock-compression at 51 GPa

B. Glam, S. J. Tracy, R. F. Smith, J. K. Wicks, D. E. Fratanduono, A. E. Gleason, C. A. Bolme, V. B. Prakapenka, S. Speziale, K. Appel, H. J. Lee, A. MacKinnon, F. Tavella, J. H. Eggert, T. S. Duffy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In situ x-ray diffraction and wave-profile measurements were carried out on polycrystalline boron carbide under laser-induced shock compression at 51 GPa at the Matter in Extreme Conditions end-station of the Linac Coherent Light Source. The diffraction data indicate that boron carbide remains crystalline to this pressure and there is no evidence for a major structural phase transition. The peak elastic stress for boron carbide was found to be 15.9 GPa, in agreement with previous gas-gun measurements, despite differences in sample thickness and loading rate between laser and gas-gun compression. The starting sample contained excess carbon in the form of graphite. The graphite peaks disappeared upon compression of the sample, indicating that carbon was incorporated into the structure of boron carbide behind the shock front and retained upon decompression.

Original languageEnglish (US)
Title of host publicationShock Compression of Condensed Matter - 2019
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
EditorsJ. Matthew D. Lane, Timothy C. Germann, Michael R. Armstrong, Ryan Wixom, David Damm, Joseph Zaug
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440005
DOIs
StatePublished - Nov 2 2020
Event21st Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2019 - Portland, United States
Duration: Jun 16 2019Jun 21 2019

Publication series

NameAIP Conference Proceedings
Volume2272
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference21st Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2019
CountryUnited States
CityPortland
Period6/16/196/21/19

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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