U.S. Philips Corporation

Karl-Georg Knauff

Hans Rau

Benno Schmidl

A method of manufacturing shaped bodies from ceramic or glass, in which a green body is formed from the starting material for the shaped body in the form of a plastic mass consisting of microdispersed solid particles and water as a dispersing liquid and, if necessary, a binder, after which said green body is dried and sintered, the still wet green body being immersed in water miscible organic liquid having a lower surface tension and a lower enthalphy of vaporization than water, until the water in the green has at least largely been replaced by the organic liquid due to diffusion.

Method of manufacturing shaped bodies from ceramics or glass

A method of preparing iron powder for recording in which iron oxide hydrate powder is reduced by flowing hydrogen in intimate contact with the iron oxide hydrate powder, preferrably in a fluidized bed.

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Aachen, Germany

Karl-Georg Knauff