The Clapeyron effect in succinonitrile: applications to crystal growth

This paper describes experiments that measure the Clapeyron effect, i.e., the change in melting temperature with static pressure in succinonitrile (SCN), a common model material used in crystal growth experiments. The Clapeyron results also yield information about the density change upon solidification – a parameter that is difficult to measure accurately and directly in SCN due to void formation in the solid. Furthermore, making a pressure change in an experimental environment presents researchers with a way to change more rapidly and uniformly the supercooling of a melt than by using conventional heating and cooling techniques.