Method of making a ceramic article
AssigneeDow Corning Corporation
InventorsHelmut Fackler, Hagen Demes
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Abstract
This invention provides methods for making ceramic articles with improved density, compression strength and efflorescence properties, in which a pre-ceramic article containing direct process residue gel is heated at an elevated temperature.
Claims10
A method for making a ceramic article with improved efflorescence properties, which method comprises forming a pre-ceramic article comprising from 0.01 to 20 wt % of direct process residue gel resulting from the neutralisation and dewatering of higher boiling point halosilanes produced by the direct process reaction of silicon and an organic halide or hydrogen chloride, and baking the article at an elevated temperature.
A method for making a ceramic article with lower density, which method comprises forming a pre-ceramic article comprising from 0.01 to 20 wt % of direct process residue gel resulting from the neutralisation and dewatering of higher boiling point halosilanes produced by the direct process reaction of silicon and an organic halide or hydrogen chloride, and baking the article at an elevated temperature.
A method for making a ceramic article with increased compression strength, which method comprises forming a pre-ceramic article comprising from 0.01 to 10 wt % of direct process residue gel resulting from the neutralisation and dewatering of higher boiling point halosilanes produced by the direct process reaction of silicon and an organic halide or hydrogen chloride, and baking the article at an elevated temperature.
Dependencies are inferred from the claim text.