US 12,391,617 B2
Composite material having an aluminosilicate matrix in particular made from barium aluminosilicate (BAS) reinforced with metal oxide reinforcements, and method for preparing same
Alexandre Allemand, Bordeaux (FR); Romain Billard, Epernay (FR); and Yann Le Petitcorps, Leognan (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR)
Filed by COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris (FR)
Filed on Oct. 4, 2021, as Appl. No. 17/492,864.
Application 17/492,864 is a division of application No. 14/443,616, abandoned, previously published as PCT/EP2013/074159, filed on Nov. 19, 2013.
Claims priority of application No. 12 61020 (FR), filed on Nov. 20, 2012.
Prior Publication US 2022/0024821 A1, Jan. 27, 2022
Int. Cl. C04B 35/195 (2006.01); C04B 35/626 (2006.01); C04B 35/64 (2006.01); C04B 35/645 (2006.01); C04B 35/76 (2006.01); C04B 35/80 (2006.01)
CPC C04B 35/195 (2013.01) [C04B 35/62685 (2013.01); C04B 35/64 (2013.01); C04B 35/645 (2013.01); C04B 35/76 (2013.01); C04B 35/80 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3436 (2013.01); C04B 2235/3481 (2013.01); C04B 2235/5224 (2013.01); C04B 2235/5228 (2013.01); C04B 2235/5232 (2013.01); C04B 2235/5264 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/662 (2013.01); C04B 2235/666 (2013.01); C04B 2235/76 (2013.01); C04B 2235/767 (2013.01); C04B 2235/80 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for preparing a composite material consisting of a matrix made of at least one aluminosilicate, reinforced by reinforcements made of at least one metal oxide or metalloid oxide, the at least one metal oxide or metalloid oxide having a thermal expansion coefficient with a value that is within 30% of the thermal expansion coefficient of said at least one aluminosilicate, the method comprising the following successive steps a) to d):
a) placing into contact a powder of at least one aluminosilicate selected from barium aluminosilicate BAS, barium and strontium aluminosilicate BSAS, strontium aluminosilicate SAS, and mixtures thereof, with reinforcements made of at least one metal oxide or metalloid oxide having a thermal expansion coefficient with a value that is within 30% of the thermal expansion coefficient of said at least one aluminosilicate;
b) sintering the powder of at least one aluminosilicate and the reinforcements made of at least one metal oxide or metalloid oxide by a hot sintering method using a pulsed electric field;
c) cooling the sintered powder and reinforcements; and
d) recovering the composite material.