Method of fabricating inorganic filter structures
AssigneeSociete Anonyme: T.A.M.I. Industries
InventorMichel Millares
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Abstract
The invention consists in a method of making inorganic filter structures of the type consisting in: in shaping and baking a porous substrate; in depositing on the substrate a suspension containing at least one sinterable composition designed to constitute a filter layer after baking; in selecting, as the sinterable composition, a powder including at least aggregates made up of individual particles; and in destroying the aggregates contained in the sinterable composition in such a manner as to cause the composition to be composed essentially of individual particles.
Claims7
A method of making inorganic filter structures, consisting essentially of the following steps:
- (a) shaping and packing a porous substrate,
- (b) selecting a powder of a sinterable composition which comprises aggregates of individual particles,
- (c) destroying the aggregates in the sinterable composition so that the sinterable composition substantially comprises individual particles,
- (d) treating the individual particles to produce clusters of individual particles, the clusters having substantially no continuity of particle matter between adjacent particles within the cluster,
- (e) forming a suspension comprising the sinterable composition,
- (f) depositing the suspension onto the substrate, and
- (g) baking the substrate to form a filter layer of the sinterable composition on the substrate.
Dependencies are inferred from the claim text.