Fig. 2From: Influence of substrate and temperature on the crystallization of KNO3 droplets studied by infrared thermographyDroplets observed by IRT and binocular microscope. (a) Infrared image of a droplet at the beginning of the test. (b) Infrared image of the same droplet after complete evaporation. (c) Visual image of the evaporated droplet with the four studied zonesBack to article page