Transparent ceramics and methods of preparation thereof

Details Transparent ceramics and methods of preparation thereof Transparent ceramics and methods of preparation thereof

2009-10-21

2011-10-18

Theisen, Mary F (Department: 1743)

Compositions: ceramic

Ceramic compositions

Yttrium, lanthanide, actinide, or transactinide containing

C264S681000, C264S086000

Reexamination Certificate

active

08039413

ABSTRACT:
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 80° C. for forming a preform. Other methods for forming a transparent ceramic preform are also described according to several embodiments.

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