Fig. 2.

Data for the substrate (cold finger) temperature vs. time during unidirectional freezing of camphene-based suspensions at constant rates (1–7 °C/min). The average velocity of the camphene solidification front is shown for each freezing rate. For comparison, suspensions were also frozen on a substrate kept at a constant temperature (3 °C). The solid lines show the time taken to completely freeze a construct 20 mm in height under the conditions shown.