C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
C03C 14/00 (2006.01) C03C 1/00 (2006.01) C03C 3/085 (2006.01) C03C 10/00 (2006.01)
Patent
CA 2043757
In the process according to the invention, a gel is prepared by hydrolysis and polycondensation of precursor compounds which comprise at least silicon alcoholate and aluminum alcoholate and inorganic compounds of lithium and/or magnesium, the solvent is removed, and the gel obtained is subjected to a heat treatment resulting in dehydration and oxidation, then to compacting and ceramisization. The composition obtained is substantially in the form of solid ceramic solutions, such as .beta.-spodumene, cordierite and mullite.
Jamet Jean
Larnac Guy
Parlier Michel
Phalippou Jean
Ritti Marie-Helene
Office National D'etudes Et de Recherches Aerospatiales
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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