Original paper

Static grain growth influenced by second-phase particles: experimental insights

Brodhag, Sabine; Herwegh, Marco; Berger, Alfons


This study deals with the effect of second phases on grain growth of a matrix phase under static conditions. For this purpose, rock analogue experiments have been performed using norcamphor as matrix phase and micro glass beads as second phase. The growth kinetics of the matrix phase is closely related to the size and volume fraction of the second phases. In this way, the higher the second- phase volume fraction, the smaller the resulting matrix grai size. This relation can be expressed in form of a grain growth law adapted for two-phase aggregates.