| 摘要 |
1. A ceramic-metal connection method for coating a metal part with a thermally insulating ceramic layer, in which liquid metal (6) is poured into a mould (1) containing a ceramic part (2) having on the face (3) to be impregnated an open porosity gradient decreasing from the outside to the inside, from said face (3), characterized in that the ceramic part (2) is obtained by impregnating a preform made from compacted fibres by means of an aqueous solution of colloidal silica and gelling of this solution with continuous variation of the acidity of the liquid phase by addition of an acid, in accordance with an appropriate feed law. |
