ESEM, contact line, hysteresis, droplet roll-off, hydrophobic materials, superhydrophobic materials, Cassie droplet
Environmental scanning electron microscopes (ESEM), optical imaging, microscopes, cameras
This invention proposes a novel apparatus and method for visualizing and manipulating droplets of liquids as they come into contact with surfaces as viewed with an environmental scanning electron microscope (ESEM) and environmental microscopes in general. It provides a means for positioning an isolated liquid droplet on a surface of interest within the chamber of an ESEM allowing for the imaging of sub-micron features of the droplet's contact line as it moves across the surface as well as measuring condensation heat flux to the surface.
US Patent application 61/420396 on December 7, 2010
Last revised: January 31, 2011
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