TEMPERATURE DEPENDENT MONOVACANCY PARAMETERS VERSUS DIVACANCIES IN ANALYZING DATA OF DEFECTS IN METALS

摘要

The appropriate procedure for analyzing experimental data of defects in metals is discussed. The following two diverse procedures have been proposed earlier: either in terms of single vacancy formation with temperature dependent enthalpy and entropy, or by assuming coexistence of vacancies and divacancies with temperature-independent parameters. Using aspects of thermodynamics of the defect formation processes in solids, we show that the former procedure leads to self-consistent parameters.