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BIDIRECTIONAL FREEZE CASTING FOR FABRICATING LAMELLAR STRUCTURES

United States Patent Application

20170100857
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
This disclosure provides systems, methods, and apparatus related to freeze casting. In one aspect, a method comprises providing an apparatus. The apparatus comprises a container and a cooling surface. A bottom of the container comprises a wedge. The wedge comprises a first substantially planar surface and a second substantially planar surface with an angle between the first and the second substantially planar surfaces. An interior bottom of the container comprises the second substantially planar surface. The cooling surface is in contact with the first substantially planar surface. A slurry is deposited on the second substantially planar surface, the slurry comprising a plurality of particles in a liquid. The cooling surface is cooled to cool the slurry at a specified cooling rate.
Bai, Hao (Berkeley, CA), Chen, Yuan (Beijing, CN), Delattre, Benjamin (Berkeley, CA), Tomsia, Antoni P. (Pinole, CA)
The Regents of the University of California (Oakland CA)
15/ 225,580
August 1, 2016
STATEMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under Contract No. DE-AC02-05CH11231 awarded by the U.S. Department of Energy and under Grant No. R01 DE015633 awarded by the National Institutes of Health. The government has certain rights in this invention.