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Fracture formation in DP6, followed by RPC along the fractures, in a process having the following parameters: Tmin=−146.3°C, H1=21.2 °C/min, H2=19.2 °C/min, H3=6.1 °C/min, H4=8.7 °C/min. The temperature is shown at the top-left corner of each photo. Top-left: radial fractures form near the vial wall; top-right: fractures edges healed at the beginning of rewarming; bottom-left: RPC along radial lines; bottom-right: RPC along radial lines at a more advanced stage.
