Vacancy properties in gold

摘要: A detailed, multi-parameter fitting analysis has been performed on the experimental data available for self-diffusion, equilibrium vacancy concentrations and effective migration energies, obtained from direct observations of precipitation after quenching, in gold. The ranges allowed values various activation enthalpies were determined, within realistic uncertainty limits, to be 0.89 ⩽ EF1V 0.96 eV, 0.25 EB2v 0.57 0.83 EM1V 0.62 EM2V 0.79 eV 0.48 EM3v 0.56 eV. Limits also pre-exponential or entropy factors. Since these limits correlations among possible parameter exist, results combined analyses are presented as fields parameter-space. value this type procedure deducing defect properties experiment is discussed. representative set parameters was used computer-model a quench subsequent recovery. These calculations demonstrated self-consistency assumption local results.