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Title: Photoluminescence studies of shock-recovered Y{sub 2}O{sub 3}:Eu{sup 3+}

A series of shock-recovery experiments on Y{sub 2}O{sub 3}:Eu{sup 3+} powder were conducted involving the impact of a flyer plate accelerated by a single-stage powder-propellant gun. The recovered samples were characterized by X-ray diffraction (XRD) analysis and photoluminescence (PL) spectroscopy. The XRD and PL results of samples shocked at pressures of 13 GPa indicated that a phase transition from a cubic phase to a monoclinic phase occurred. The recovered samples shocked at 21 and 25 GPa consisted of Y{sub 2}O{sub 3}:Eu{sup 3+} with the cubic phase and the monoclinic phase. These results indicated that the shock-induced phase transition was the partial completion of the phase transition.
Authors:
; ; ;  [1]
  1. Department of Materials Science and Engineering, National Defense Academy, Yokosuka 239-8686 (Japan)
Publication Date:
OSTI Identifier:
22395641
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CUBIC LATTICES; EMISSION SPECTROSCOPY; EUROPIUM IONS; MONOCLINIC LATTICES; PHASE TRANSFORMATIONS; PHOTOLUMINESCENCE; PLATES; POWDERS; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; X-RAY DIFFRACTION; YTTRIUM OXIDES