Fracture Formation Around a 1.3 mm Cryogenic Tube
Cryogenic tube diameter = 1.3 mm Beaker diameter = 65 mm Two freezing periods separated with a 10 seconds interval of no liquid nitrogen flow. Elapsed time in is shown on each photo (min:sec)
Period I: Liquid nitrogen flow started	Period I: Liquid nitrogen flow stopped at 5:40
Period I: Liquid nitrogen flow stopped at 5:40	Period II: Liquid nitrogen flow restarted at 5:50
Period II: Liquid nitrogen flow stopped at 14:45 Biothermal Technology Laboratory Copyrights©	Period II: Liquid nitrogen flow stopped at 14:45