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AssigneeSolventum Intellectual Properties Company
InventorsAmy T. Shah, James D. Hansen, David B. Stegall, Alexander J. Huffman, Gareth A. Hughes, Melissa A. Lackey, Kathleen M. Humpal, Andreas M. Geldmacher, Kristen F. Keller
Estimating the term…
The present disclosure provides a method of making a ceramic article. The method includes (a) obtaining a photopolymerizable slurry or sol including a plurality of ceramic particles distributed in the photopolymerizable slurry or sol and (b) selectively polymerizing the photopolymerizable slurry or sol using actinic radiation and continuous movement of a build substrate through the photopolymerizable slurry or sol to form a gelled article. The method also includes (c) extracting solvent from the gelled article to form an aerogel article or a xerogel article; (d) heat treating the aerogel article or the xerogel article to form a porous ceramic article; and (e) sintering the porous ceramic article to form a sintered ceramic article. The sintered ceramic article exhibits a particular density. Further, additive manufactured ceramic articles are provided that exhibit a particular density, opacity, or both. Preferably, all cross-sectional portions of an interior of the ceramic article having selected dimensions are free of a frequency analysis signal maxima larger than a background signal.
An additive manufacturing method of making a ceramic article, the method comprising:
An additive manufactured ceramic article exhibiting a density of 98% or greater with respect to a theoretical density of a ceramic material and exhibiting an opacity of 80% or less, wherein all cross-sectional portions of an interior of the additive manufactured ceramic article having a plane with dimensions of 0.5 mm×0.5 mm are free of a frequency analysis signal maxima larger than a background signal, and wherein the additive manufactured ceramic article is formed by continuous additive manufacturing involving uninterrupted movement of a substrate during photopolymerization of a photopolymerizable sol.
Dependencies are inferred from the claim text.