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:
Nov. 06, 2012
Filed:
Jan. 28, 2008
Yves Marcel Leon Boussant-roux, Montfavet, FR;
Ana-maria Popa, Cavaillon, FR;
Stephen D. Hartline, Shrewsbury, MA (US);
Jostein Mosby, Mosby, NO;
Sjur Vidar Velken, Kristiansand, NO;
Yves Marcel Leon Boussant-Roux, Montfavet, FR;
Ana-Maria Popa, Cavaillon, FR;
Stephen D. Hartline, Shrewsbury, MA (US);
Jostein Mosby, Mosby, NO;
Sjur Vidar Velken, Kristiansand, NO;
Saint-Gobain Centre de Recherches et d'Etudes Europeen, Courbevoie, FR;
Abstract
The invention relates to a process for fabrication of a porous refractory ceramic product made from SiC, by heat treatment and sintering at high temperature, starting from a fraction of fine particles of SiC and from a fraction of larger-sized particles of SiC, said process being characterized in that, in a step preliminary to the heat treatment and to the sintering at high temperature, the finest particles of SiC are agglomerated then, in a second step, the granules thus obtained are added to the SiC powder with particles of larger size. The invention also relates to a porous body made from recrystallized SiC in an essentially α form, in particular a particulate filter for automobile application, obtained by such a process.