IMPROVEMENTS TO METHODS FOR CALEFACTION DENSIFICATION OF A POROUS STRUCTURE

摘要

The invention concerns a method for calefaction densification of a porous structure (mixed liquid-gas process) (5) which consists in immersing the porous structure in a liquid precursor, for example a hydrocarbon, and in heating the whole assembly to deposit the product for decomposition of said liquid precursor, for example of carbon, in the pores of said porous structure. The invention is characterised in that it consists in reducing the flow rate of liquid precursor penetrating into the porous structure, for example by means of a polytetrafluoroethylene filter (52) enclosing the structure, so as to reduce the vaporization phenomena of the liquid precursor around the porous structure to be densified.