Patents by Inventor Sylvie Poissonnet

Sylvie Poissonnet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for enhancing the mechanical strength of an SiC/SiC ceramic matrix composite material
    Patent number: 9321696
    Abstract: The invention relates to a method for improving the mechanical strength of a ceramic matrix composite material of the SiC/SiC type, this composite material being obtained by (a) forming a fiber preform from 3rd generation silicon carbide fibers and (b) forming a ceramic matrix around the fiber preform, this ceramic matrix comprising silicon carbide. The method comprises a chemical etching treatment of the surface of the fibers by bringing said fibers into contact with a solution comprising an oxidizer, this treatment being carried out before step (a) or between steps (a) and (b).
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 26, 2016
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Emilien Buet, Cédric Sauder, Sylvie Poissonnet, Cathie Vix-Guterl
  • METHOD FOR ENHANCING THE MECHANICAL STRENGTH OF AN SIC/SIC CERAMIC MATRIX COMPOSITE MATERIAL
    Publication number: 20140346136
    Abstract: The invention relates to a method for improving the mechanical strength of a ceramic matrix composite material of the SiC/SiC type, this composite material being obtained by (a) forming a fiber preform from 3rd generation silicon carbide fibers and (b) forming a ceramic matrix around the fiber preform, this ceramic matrix comprising silicon carbide. The method comprises a chemical etching treatment of the surface of the fibers by bringing said fibers into contact with a solution comprising an oxidizer, this treatment being carried out before step (a) or between steps (a) and (b).
    Type: Application
    Filed: December 21, 2012
    Publication date: November 27, 2014
    Inventors: Emilien Buet, Cédric Sauder, Sylvie Poissonnet, Cathie Vix-Guterl