Impact experiments with aluminum-helium bubbles targets

B. Glam, S. Eliezer, D. Moreno, L. Bakshi, M. Sudai, D. Eliezer

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

1 Scopus citations

Abstract

The dynamic behavior of aluminum targets with helium bubbles was investigated in plane impact experiments. From the free surface velocity measurements the spall strength was calculated and analyzed. Theoretical comparison between spall creation due to voids growth and bubbles growth was made. The impacted targets were collected after the impact experiments and examined by TEM. These targets were compared to TEM pictures before the impact. The number of helium atoms in the bubbles was calculated from the electron energy lose spectrum (EELS). Comparison of bubble radiuses and concentration before and after the impact demonstrated bubbles coalescence and EELS measurements showed a reduction of the helium atoms concentration in the bubbles from ∼1028 m-3 before the impact to ∼10 27 m-3 after the impact.

Original languageEnglish
Title of host publicationShock Compression of Condensed Matter - 2009 - Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Pages1061-1064
Number of pages4
DOIs
StatePublished - 1 Dec 2009
EventConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM - Nashville, TN, United States
Duration: 28 Jun 20093 Jul 2009

Publication series

NameAIP Conference Proceedings
Volume1195
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceConference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2009 APS SCCM
Country/TerritoryUnited States
CityNashville, TN
Period28/06/093/07/09

Keywords

  • Aluminum
  • EELS
  • Helium bubbles
  • Shock-wave
  • Spall strength
  • TEM

ASJC Scopus subject areas

  • General Physics and Astronomy

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