Keramischer, mehrschichtiger Fasermatrixverbundwerkstoff und Verfahren zu seiner Herstellung

摘要

Plies of long fibres, which are woven or non-woven, and are lined with two precursors, are stacked, the two precursors each constituting an intermediate state of a manufacturing process of a glass-ceramic composition by the sol-gel route by means of hydrolysis and polycondensation from alkoxides or similar compounds, namely 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 a relatively low temperature; the fibrous structure is compressed in the stacking direction, and the whole unit is heat-treated to convert the two precursors into a continuous matrix.