skip to main content

Title: Elastic-plastic and phase transition of zinc oxide single crystal under shock compression

The Hugoniot data for zinc oxide (ZnO) single crystals were measured up to 80 GPa along both the 〈112{sup ¯}0〉 (a-axis) and 〈0001〉 (c-axis) directions using a velocity interferometer system for any reflector and inclined-mirror method combined with a powder gun and two-stage light gas gun. The Hugoniot-elastic limits of ZnO were determined to be 10.5 and 11.5 GPa along the a- and c-axes, respectively. The wurtzite (B4) to rocksalt (B1) phase transition pressures along the a- and c-axes are 12.3 and 14.4 GPa, respectively. Shock velocity (U{sub s}) versus particle velocity (U{sub p}) relation of the final phase is given by the following relationship: U{sub s} (km/s) = 2.76 + 1.51U{sub p} (km/s). Based on the Debye-Grüneisen model and Birch-Murnaghan equation of state (EOS), we discuss the EOS of the B1 phase ZnO. The bulk modulus (K{sub 0}) and its pressure derivative (K{sub 0}′) are estimated to be K{sub 0} = 174 GPa and K{sub 0}′ = 3.9, respectively.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Institute of Pulsed Power Science, Kumamoto University, Kurokami, Kumamoto 860-8555 (Japan)
  2. The Peac Institute of Multiscale Sciences, Chengdu 610207 (China)
  3. Department of Earth and Planetary Systems Science, Hiroshima University, Higashi, Hiroshima 739-8526 (Japan)
Publication Date:
OSTI Identifier:
22413233
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 9; 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; COMPRESSION; CUBIC LATTICES; ELASTICITY; EQUATIONS OF STATE; MONOCRYSTALS; PHASE TRANSFORMATIONS; PLASTICITY; POWDERS; PRESSURE RANGE GIGA PA; ULTIMATE STRENGTH; VISIBLE RADIATION; ZINC OXIDES