Preparation of a powder mixture useful in which ceramic and metallic powders are mixed with a solvent and deagglomerated useful for production of sintered ceramic products

Preparation of a powder mixture for production of ceramic sintered products in which one or more ceramic and metallic powders are mixed with a solvent, e.g. alcohol and optionally a dispersing agent, deagglomerated, so that on addition of organic additives as binder and plasticizer, the mixture can be homogenized and degassed by solvent evaporation and granulated to give a granulate for ceramic sintered products is new. A process for preparation of a powder mixture for production of ceramic sintered products for reaction conditions in which one or more ceramic and metallic powders is mixed with a solvent, e.g. alcohol and optionally a dispersing agent, deagglomerated, so that on addition of organic additives as binder and plasticizer, the mixture can be homogenized and after removal from, e.g. a grinding mill, degassed by solvent evaporation and granulated to give a granulate for ceramic sintered products. A mixture of preferably an alcoholic solvent and dispersing agent is made and divided ...

ANORDNUNG UND VERFAHREN ZUR TROCKNUNGSMITTELREGENERIERUNG BEI ULTRASCHALLWASCHANLAGEN

Production of ceramic jointing foil, used for joining ceramic articles by reaction bonding, uses separate deagglomeration and homogenization on ceramic powder and metal powder in solvent and dispersant before mixing

In the production of ceramic jointing foils a mixture of (alcoholic) solvent and dispersant is prepared and divided into 2 portions; these are used in deagglomeration and homogenization of ceramic powder and nanodisperse oxidizable passivated metal powder (under 5-10 mu m); the deagglomerated batches are combined, then made into the slip by mixing homogeneously with organic additives. Production of ceramic jointing foils with reduced shrinkage involves mixing ceramic powder(s) with a solvent, e.g. alcohol, and optionally dispersant, deagglomeration and conversion to a castable slip by mixing homogeneously with addition of organic additives, e.g. binder and plasticizer, separating the mixing bodies, degassing, casting on a substrate, preferably PTFE tape, and drying. A mixture of preferably alcoholic solvent and dispersant is prepared and divided into 2 portions that are used separately in deagglomeration and homogenization of (1) ceramic powder(s) and (2) nanodisperse oxidizable metal powder ...