The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2011
Filed:
Feb. 29, 2008
Monika Backhaus-ricoult, Horseheads, NY (US);
Christopher Raymond Glose, Painted Post, NY (US);
Monika Backhaus-Ricoult, Horseheads, NY (US);
Christopher Raymond Glose, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A porous ceramic substrate includes a first phase of microcracked cordierite ceramic material and a second phase of non-cordierite metal oxide particles dispersed in the cordierite ceramic, wherein at least a portion of the interface between the first and second phases is wetted by glass and the particles of the second phase have a size in the range of from about 0.1 to about 10 μm. A method for toughening a porous microcracked cordierite ceramic includes the steps of providing a cordierite batch composition; adding to the cordierite batch composition at least one non-cordierite forming metal oxide or metal oxide precursor; mixing the batch composition with a pore former, binder, and water into a paste; shaping the paste into a green body; firing the green body; and annealing the fired green body at a temperature below the firing temperature to form a toughened cordierite ceramic honeycomb having a second phase of crystallized non-cordierite particles dispersed within the cordierite ceramic, wherein at least a portion of the interface between the first and second phases is wetted by glass.