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Methods of electrophoretic deposition for functionally graded porous nanostructures and systems thereof

United States Patent

March 3, 2015
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
In one embodiment, an aerogel includes a layer of shaped particles having a particle packing density gradient in a thickness direction of the layer, wherein the shaped particles are characterized by being formed in an electrophoretic deposition (EPD) process using an impurity. In another embodiment, a method for forming a functionally graded porous nanostructure includes adding particles of an impurity and a solution to an EPD chamber, applying a voltage difference across the two electrodes of the EPD chamber to create an electric field in the EPD chamber, and depositing the material onto surfaces of the particles of the impurity to form shaped particles of the material. Other functionally graded materials and methods are described according to more embodiments.
Worsley; Marcus A. (Hayward, CA), Baumann; Theodore F. (Discovery Bay, CA), Satcher; Joe H. (Patterson, CA), Olson; Tammy Y. (Livermore, CA), Kuntz; Joshua D. (Livermore, CA), Rose; Klint A. (Alviso, CA)
Lawrence Livermore National Security, LLC (Livermore, CA)
13/ 171,323
June 28, 2011
The United States Government has rights in this invention pursuant to Contract No. DE-AC52-07NA27344 between the United States Department of Energy and Lawrence Livermore National Security, LLC for the operation of Lawrence Livermore National Laboratory.