METHOD FOR MANUFACTURING AN ABRADABLE LAYER

Organization Name

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor(s)

Serge Georges Vladimir Selezneff of MOISSY-CRAMAYEL (FR)

Philippe Charles Alain Le Biez of MOISSY-CRAMAYEL (FR)

Arnaud Louis Gabriel Fregeac of MOISSY-CRAMAYEL (FR)

Florence Ansart of LABEGE (FR)

Claude Gilbert Jean-Pierre Estournes of RIEUMES (FR)

METHOD FOR MANUFACTURING AN ABRADABLE LAYER

This abstract first appeared for US patent application 18894743 titled 'METHOD FOR MANUFACTURING AN ABRADABLE LAYER

Original Abstract Submitted

A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.