US 12,168,631 B2
Method for manufacturing a consolidated densified part made of ceramic or made of carbon
Alexandre Allemand, Bordeaux (FR); Thierry Piquero, Fondettes (FR); Anthony Baux, Bessan (FR); Sylvain Jacques, Talence (FR); and Georges Chollon, Talence (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR); CENTRE NATIONAL DE LA RECHERCHE E SCIENTIFIQUE, Paris (FR); and UNIVERSITE DE BORDEAUX, Bordeaux (FR)
Appl. No. 17/277,143
Filed by COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris (FR); CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR); and UNIVERSITE DE BORDEAUX, Bordeaux (FR)
PCT Filed Sep. 19, 2019, PCT No. PCT/FR2019/052205
§ 371(c)(1), (2) Date Mar. 17, 2021,
PCT Pub. No. WO2020/058647, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 1858524 (FR), filed on Sep. 20, 2018.
Prior Publication US 2022/0033313 A1, Feb. 3, 2022
Int. Cl. C04B 35/571 (2006.01); B29C 64/118 (2017.01); B33Y 10/00 (2015.01); C04B 35/524 (2006.01)
CPC C04B 35/571 (2013.01) [B29C 64/118 (2017.08); B33Y 10/00 (2014.12); C04B 35/524 (2013.01); C04B 2235/483 (2013.01); C04B 2235/6026 (2013.01); C04B 2235/614 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for manufacturing a part made of a first ceramic or made of carbon, consolidated by a second ceramic, having a determined geometry, wherein the following successive steps are carried out:
a) a preform made of an organic polymer is manufactured, the preform having the same geometry as the part to be manufactured;
b) the preform made of an organic polymer is impregnated with a first-ceramic precursor resin or a carbon precursor resin;
c) the first-ceramic precursor resin or the carbon precursor resin is cross-linked and/or polymerised and then pyrolysed;
d) optionally, steps b) and c) are repeated;
whereby, at the end of step c) or step d), a part made of a first ceramic or made of carbon, having the same geometry as the part to be manufactured, is obtained;
e) the second ceramic is deposited onto the part made of a first ceramic or made of carbon obtained at the end of step c) or step d), by a Chemical Vapour Deposition (CVD) method or a Chemical Vapour Infiltration (CVI) method; and
wherein no second ceramic is present in steps a)-d).