Elementary Monte Carlo model of the anisotropic recrystallization and antiripening under intensive stirring and high supersaturations

TL;DR

This paper presents a Monte Carlo model for anisotropic recrystallization and antiripening in fibrous oxides under intensive stirring, incorporating ballistic atom detachments and anisotropic effects, revealing unique growth and dissolution behaviors.

Contribution

It introduces a simplified Monte Carlo scheme within the TLK model that accounts for anisotropy and athermal detachment, providing new insights into fiber growth and ripening under stirring conditions.

Findings

Clusters elongate or dissolve depending on conditions.

Mean fiber length increases despite decreasing cluster number.

Total surface energy grows, contrary to typical ripening.

Abstract

Known method of fibrous oxides production (first of all, V2O5) by intensive stirring in water is treated in the frame of driven systems approach developed in 80s by Georges Martin et al for systems under irradiation or severe plastic deformation. Instead of ballistic diffusion, the ballistic detachments of atoms from the oxide surface under stirring are introduced. Simplified Monte Carlo scheme is suggested for crystal evolution within TLK model, taking into account anisotropy and additional athermal detachment probabilities. Individual cluster in limited volume becomes elongated in steady-state or dissolve. For the ensemble of clusters, the number is decreasing (as in common ripening), but the mean length of fibers grows, as well as the total surface energy (contrary to common ripening).