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Superhydrophobic Aluminum

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Uploaded on Mar 18, 2014

Chemical treatments can be used to render metals hydrophobic, i.e. nonwetting. Boiling the surface before applying the chemicals creates a nanoscale texture that accentuates the hydrophobicity. Even on a common metal like aluminum, this combination of texturing and chemical treatment leads to superhydrophobic behavior. Here the technique is demonstrated by spraying water droplets on a piece of treated aluminum.

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