Method and Apparatus for an Extruded Ceramic Biosoluble Fiber Substrate
AssigneeGEO2 Technologies, Inc.
InventorJames Jenq Liu
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Abstract
A porous ceramic substrate is disclosed that is fabricated from biosoluble ceramic fibers. Porosity and permeability of the substrate is provided by intertangled biosoluble fibers, that can be formed into a honeycomb form substrate through an extrusion process. The fibrous structure is formed from mixing biosoluble fibers with additives that include a bonding agent, and a fluid to provide an extrudable mixture. The structure is sintered at a temperature that exceeds the glass formation temperature of the bonding agent, but less than the maximum operational limits of the biosoluble fiber, to form a structure that has sufficient strength and porosity to provide for filtration and/or as a catalytic host.
Claims15
1-20. (canceled)
An extruded porous honeycomb substrate comprising:
- an extruded honeycomb array of channels forming walls between adjacent channels;
- the walls having a porous structure comprising an open network of pores formed from intertangled of synthetic bone fibers;
- and
- the synthetic bone fibers having bonds between adjoining fibers within the structure.
The substrate according to claim 1 wherein the porous structure comprising an open network of pores has a porosity between 40% and 80%.
The substrate according to claim 1 wherein the synthetic bone fibers have a distributed aspect ratio with a mode between 3 and 50,000.
Dependencies are inferred from the claim text.