Office National D'etudes Et De Recherches Aerospatiales

Emmanuelle Mouchon

Gilles Courtemanche

Michel Parlier

Philippe Colomban

Martine Menet

Woven or nonwoven long fiber sheets filled with two precursors each constituting an intermediate stage in a process for the preparation of a vitreous ceramic composition by the sol-gel route by hydrolysis and polycondensation using alcoholates or analogous compounds as the starting materials, that is to say an interface precursor in the form of a gel rich in water and a matrix precursor in the form of discrete particles capable of sintering at relatively low temperature, are stacked; the fibrous structure is compressed in the direction of stacking and the whole is heat-treated in order to convert the two precursors into a continuous matrix.

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Fontenay aux Roses, France

Emmanuelle Mouchon