Breath Figure Patterns in the Oxidation of Boron Nitride
نویسندگان
چکیده
Liquids condensing on solids can form a pattern known as ‘‘breath figures.’’ Here we report similar patterns for liquid boron oxide droplets formed by high temperature oxidation reaction of boron nitride. Boron oxide does not wet boron nitride, so the liquid B2O3 oxide forms small droplets. As oxidation proceeds at 12001C, the oxide created by reaction on the surface migrates to existing droplets or forms new droplets. The average diameter and maximum diameter of the boron oxide droplets increase with time following the kinetics of breath figures, similar to water condensation breath figures for dew drops.
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