Indentation Test on GaAs: Modelling of the Plastic Zone

Dislocation multiplication rate in the early stage of germanium plasticity

“…As in all published models of plasticity of semiconductors [3][4][5][6][7][8][9], the set of equations used here is based on the famous Alexander-Haasen empirical model [7]. The Orowan equation:…”

“…Such formula is regularly used even in the case of single crystal oriented for single slip (e.g. [3,7]). However, before the UYP, the internal stress is negligible.…”

“…All three laws were used in the constitutive modelling of mechanical properties of semiconductors [3][4][5][6][7][8][9] and there is not a general agreement about their validity.…”

“…For example, only one equation is traditionally used to describe dislocation multiplication [3][4][5].…”