Intermediate transformation material for ceramic precursors, method of transformation, storage method and production method of precursors.

摘要

Intermediate material based on a ceramic precursor consisting of continuous fibres impregnated with a ceramic precursor matrix, the whole being sheathed continuously with a flexible plastic resin. This intermediate material is prepared by sheathing, using flexible plastic resin of fibres which have previously been passed through a fluid precursor. This technique allows the precursor to be stored in the absence of air before use and a preform prepared using this sheathed precursor to be converted directly into ceramic by heating to at least 800 DEG C.