The rarefaction wave propagation in transparent windows

B. Glam, E. Porat, Y. Horovitz, A. Yosef-Hai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The radial (lateral) rarefaction wave velocity of polymethyl methacrylate (PMMA) and Lithium Fluoride (LiF) windows were studied by plate impact experiments that were carried out at Soreq NRC up to a pressure of 146 kbar in the PMMA and 334 kbar in the LiF. The windows were glued to Lead targets that were impacted by a copper impactor. The VISAR measurement was done in the window interface with the target. This information was utilized to identify the radial rarefaction arrival time at the center of different diameter windows after the shock event, and served as a measurement to the radial wave velocity in the shocked material. It was found that for both windows, LiF or PMMA, the measured radial wave velocity increases with the pressure. Furthermore, this velocity is significantly higher compared to the expected longitudinal sound velocity at the same pressure, calculated by the Steinberg EOS in the PMMA and by ab initio calculation in the LiF. Here we present the experimental results and a comparison with analytical calculation of the sound velocity using the Steinberg EOS.

Original languageEnglish
Title of host publicationShock Compression of Condensed Matter - 2015
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
EditorsRamon Ravelo, Thomas Sewell, Ricky Chau, Timothy Germann, Ivan I. Oleynik, Suhithi Peiris
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414570
DOIs
StatePublished - 13 Jan 2017
Externally publishedYes
Event19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015 - Tampa, United States
Duration: 14 Jun 201519 Jun 2015

Publication series

NameAIP Conference Proceedings
Volume1793
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015
Country/TerritoryUnited States
CityTampa
Period14/06/1519/06/15

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