PROCESS FOR PRODUCING POROUS METAL BODIES

摘要

A porous metal body, e.g. an electrode for an electric cell, is prepared using the following steps: preparing a foam by adding a surface active agent and a gelling agent to water and then foaming the mixture by stirring and/or blowing air through it; incorporating metal powder in the foam in order to obtain a suspension of the metal therein; shaping the foam with its suspension of metal, and adding a stabilizing agent thereto, said stabilizing agent being one which polymerizes on contact with water, thereby causing the shaped foam to set in shape; and heating the set foam to pyrolize the organic material therein and to sinter the metal. This method produces a more even and a more reliable pore size than has previously been possible.