Patent · US Active

Porous ceramic matrix

US9000199B2 · kind B2 · utility

2Cited by

2References

23Claims

0Family size

Assignee

NATIONAL UNIVERSITY OF SINGAPORE · SG

Inventors

Liang Hong · Midland, US
Xinwei Chen · Jiaocheng District, CN

Key dates

Filing date	Jun 30, 2011
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Jan 4, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/3873
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A porous ceramic matrix contains a plurality of ceramic particles adhered to each other, and a plurality of channels defined by surfaces of neighboring ceramic particles, the channels each having an average diameter of 0.5-2.5 μm. Preferred ceramics also have a porosity of 25.0-40.0%, a Darcy's Permeability of 1.57-34.8×10−14 m2, and a mechanical strength of 25-64 MPa. Also disclosed is a method of preparing such a porous ceramic matrix, comprising providing a pellet containing ceramic particles that are coated with a monomer, a catalyst, and a binder; polymerizing the monomer in the solid state by heating, then carbonizing and sintering the pellet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.