| abstract |
A method for manufacturing a fibre reinforced ceramic material which comprises forming a preform (11) of ceramic fibres, placing the preform in a porous mould (12, 13) and applying a ceramic slip (14) to the preform in the mould. The slip material (14) is then caused to impregnate the preform (11) by applying a pressure differential thus forming an impregnated preform (15). This is then removed from the mould (12, 13), the slip liquid is driven off and the preform is heat treated. The ceramic fibres and the slip material may include alumina, kaowool, silicon carbide, silicon nitride and/or zirconia. |