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Phase transitions in shock compressed bismuth identified using single photon energy dispersive X-ray diffraction (SPEDX)

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Original languageEnglish
Title of host publicationJOINT AIRAPT-25TH & EHPRG-53RD INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, 2015
PublisherIOP Publishing Ltd.
Number of pages5
DOIs
StatePublished - 1 Jan 2016
EventJoint 25th AIRAPT / 53rd EHPRG International Conference on High Pressure Science and Technology - Madrid, Spain
Duration: 30 Aug 20154 Sep 2015

Publication series

NameJournal of Physics Conference Series
PublisherIOP PUBLISHING LTD
Volume950
ISSN (Print)1742-6588

Conference

ConferenceJoint 25th AIRAPT / 53rd EHPRG International Conference on High Pressure Science and Technology
CountrySpain
CityMadrid
Period30/08/154/09/15

Abstract

We present evidence for phase transitions in shock -compressed bismuth using the SPEDX x-ray diffraction technique. Experiments were performed on the Vulcan laser at the Central Laser Facility, RAL, Didcot, UK. We observed diffraction from the (110) bcc peak of Bi-V, and from its calculated lattice parameter the pressure was determined to be approximately 17 GPa. Upon further compression (higher laser intensities), no further diffraction from solid phases was observed. Shock melting of bismuth is thought to occur between 18 and 27 GPa. Diffraction results at lower pressures as a function of delay time are also presented.

ID: 51495903