Continuous lamination manufacturing method for preparing ceramic product and ceramic product

• Main Authors: LACKEY MELISSA A, XIA AMY T, STEGALL DAVID B, HUFFMAN ALEXANDER J, HUGHES GARETH A, GELDMACHER ANDREAS M, HUMPAL KATHLEEN M, HANSEN JAMES D, KELLER CHRISTIAN F
• Format: Patent
• Language: Chinese; English
• Published: 11.03.2022
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE

The present disclosure provides a method of making a ceramic article. The method comprises (a) obtaining a photopolymerizable slurry or sol, the photopolymerizable slurry or sol comprising a plurality of ceramic particles distributed in the photopolymerizable slurry or sol; and (b) selectively polymerizing the photopolymerizable slurry or sol to form a gelled article using actinic radiation and constructing continuous movement of a substrate through the photopolymerizable slurry or sol. The method further includes (c) extracting a 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 specific density. In addition, the present disclosure provides laminated manufactured ceramic articles exhibiting a particular density, opacity, or both. Preferably, all cross-sectional port