Elastic properties of oxides in the NaCl-structure

  title={Elastic properties of oxides in the NaCl-structure},
  author={Zung P. Chang and Earl K. Graham},
Abstract The single crystal elastic constants and their first pressure derivatives have been measured by means of the ultrasonic pulse superposition technique for the NaCl-structure oxides CaO, SrO and BaO. Within the experimental precision the pressure dependence was found to be linear in the range up to 10 kbar, except for a few shear modes measured for SrO and BaO. This nonlinearity, however, was not sufficient to unambiguously determine second pressure derivatives of the elastic constants… CONTINUE READING