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US 5,053,092 AGranted
Method for producing a sinterable extruded laminated article
AssigneeCorning Incorporated
InventorIrwin M. Lachman
Life of this patent
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Abstract
Laminated extruded thermal shock resistant composite articles formed from sinterable particulate or powdered materials such as ceramics are disclosed. The laminated extruded composite articles have multiple discrete layers of at least a first and second sintered material, where the first and second sintered materials are different and are selected from high strength sintered particulate or powdered materials and where the layers of each of said first and second sintered materials are substantially uniformly distributed throughout the article.
Claims16
A method producing a sinterable extruded laminated article comprising
- (a) providing first multiple bodies comprising a mixture of a first sinterable material and a plasticizing/bonding agent for said material;
- (b) providing second multiple bodies comprising a mixture of a second sinterable material and a plasticizing/bonding agent for said material,
- where said first and second sinterable materials are different and are selected from particulate or powdered materials capable of being sintered to form high strength materials;
- (c) intermingling said first and second multiple bodies in a ratio of either of said first or second sinterable materials to the other of no greater than about 1.2:1 to form an assembled body and in such a manner that, after coextrusion of said assembled body to produce said sinterable extruded laminated article, said first and second sinterable materials are present in said article in multiple, discrete, substantially discontinuous, interspersed layers which are substantially uniformly distributed throughout said article;
- (d) passing said assembled body for extrusion through a die to form said sinterable extruded laminated composite article in a desired shape having said layers.
2 more elements
Dependencies are inferred from the claim text.