Ice Crystal Growth — Dendritic Frost on Metal Surface
78.63 €
Frost crystal dendrites on a chilled aluminium surface photographed at 4:1 macro — the hexagonal symmetry of the ice crystallisation pattern growing from multiple nucleation points, the dendrite arms of adjacent crystals competing for growth space.
Description
Frost formation on a smooth metal surface provides ideal conditions for photographing the competition between crystal growth domains — each nucleation site initiates a crystal with a randomly chosen orientation, and the dendritic growth from adjacent nucleation sites meets at boundaries determined by the competition for supersaturated vapour. At 4:1 macro reproduction on a freshly frosted aluminium plate cooled to minus 25 degrees Celsius, several frost crystal domains are visible simultaneously: the central domain shows well-developed hexagonal dendrites with the full hierarchy of primary, secondary, and tertiary branching, while the boundary zones between adjacent domains show stunted, irregular growth where competing crystals have limited each other’s development. The domain boundaries are visible as darker, less developed regions between the bright fully-grown dendrite fields of each crystal orientation domain.
