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Transparent ceramics and methods of preparation thereof

United States Patent

October 18, 2011
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
According to one embodiment, a method for forming a transparent ceramic preform includes forming a suspension of oxide particles in a solvent, adding the suspension to a mold of a desired shape, and uniformly curing the suspension in the mold for forming a preform. The suspension includes a dispersant but does not include a gelling agent. In another embodiment, a method includes creating a mixture without a gelling agent, the mixture including: inorganic particles, a solvent, and a dispersant. The inorganic particles have a mean diameter of less than about 2000 nm. The method also includes agitating the mixture, adding the mixture to a mold, and curing the mixture in the mold at a temperature of less than about C. for forming a preform. Other methods for forming a transparent ceramic preform are also described according to several embodiments.
Hollingsworth; Joel P. (Oakland, CA), Kuntz; Joshua D. (Livermore, CA), Seeley; Zachary M. (Pullman, WA), Soules; Thomas F. (Livermore, CA)
Lawrence Livermore National Security, LLC (Livermore, CA)
12/ 603,247
October 21, 2009
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.