Back to results
US 5,911,941 AGranted
Process for the preparation of thick-walled ceramic products
AssigneeNucon Systems
InventorsAnatoly E. Rokhvarger, Adam B. Khizh
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNucon Systems
InventorsAnatoly E. Rokhvarger, Adam B. Khizh
Estimating the term…
A process for the preparation of ceramic articles having a thickness of at least about 2.5 cm, which comprises: a) selecting the ceramic composition from the group consisting of silicate material, metal oxides, nitrides and carbides, and mixtures thereof, optionally adding ceramic fibers, such as boron nitride or silicon carbide fibers, to the ceramic composition, b) autoclaving the ceramic composition to increase its hydrogen form contents, which increases the composition's microwave absorptivity, c) forming the ceramic composition into the desired shape, and d) subjecting the composition so shaped to microwave energy to internally heat and thereby dry and sinter the composition, optionally with external heat applied by means of electrical resistance or gas fired heating. Novel apparatuses for the extrusion and vibrocompaction of ceramic compositions, the drying of ceramic masses, kilns for microwave-assisted firing of the ceramic articles, cars, and a hydraulic air handling system for tunnel kilns.
A process for the preparation of ceramic articles having a thickness of at least about 2.5 cm, which comprises:
A process for the preparation of ceramic articles having a thickness of at least about 2.5 cm, which comprises:
Dependencies are inferred from the claim text.