W.c. Heraeus Gmbh

Heraeus Quarzschmelze Gmbh

Bruno Streb

David Francis Lupton

Michael Hormann

Karlheinz Rau

Uwe Christiansen

Anton Steinkohl

Marek Gorywoda

Friedhold Scholz

Stefan Kotowski

Gunter Lindenmayer

Werner Reiss

Antje Viel

Fine-mesh warp-knit fabrics of noble metal-containing wires with high specific surface areas, having good mechanical stability, are produced by warp-knitting noble metal-containing wires to form closed stitches, such that the warp-knit fabric has at least 14 stitches per inch, and such that in at least one of the knit weaves forming the warp-knit fabric, the noble metal-containing wires are laid down over at least three stitch spacings.

Warp-knit fabric of noble metal-containing wires, and method for the

Catalytic gauzes which have an enlarged surface can be manufactured from a wire made of 90Pt/10Rh, for example, by coating the wire with a base metal, thermally treating the wire under partial conversion of the 90Pt/10Rh into solid solutions with the base metal, dissolving the base metal and weaving a wire gauze. They are used for the oxidation of ammonia and the ammoxidation of methane.

Process for the manufacture of a gauze for a catalytic converter and a

A light-weight mirror for astronomical purposes is disclosed. The mirror consists of a mirror plate, a back plate and a supporting framework disposed between them and consisting of a plurality of rows of tubes. The rows of tubes are staggered one from the other. Each tube in a row has a line or strip of contact with two adjacently disposed tubes of the next row. The tubes are welded together along the contact line or strip. The thickness of the tube wall is reduced in the area of the contact line or strip.

Light-weight mirror blank for astronomical purposes and method of making

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Freigericht, Germany

Bruno Streb