Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Other

Ipc Process Center Gmbh & Co.

Mehmet Serdar Ozbayraktar

H.c. Starck Gmbh

Kennametal Widia Gmbh & Co. Kg

Ceratizit S.a.

Guhring Ohg

Hartmetall Ag

G.u.s. Beteiligungs Gmbh

Kennametal Gmbh & Co. Kg, Werkzeuge + Hartstoffe

Wolfram Bergbau-und Hütten-gmbh Nfg.kg

Manfred Nebelung

Lutz-Michael Berger

Iakovos Sigalas

Robert Fries

Geoffrey John Davies

Mathias Herrmann

Hagen Klemm

Petri Vuoristo

Constant Johan Van Lookeren

Tapio Maentylae

Robert B Heimann

Gottfried Boden

Bernhard Wielage

Sven Thiele

A coating powder based on chemically modified titanium suboxides, for use in various coating techniques. Coatings produced from this powder are characterized by high electroconductivity, good solid lubricating properties and resistance to wear. For these reasons, there are numerous possibilities of use of components which were coated by suitable processes with this powder, especially as functional layers for fuel cells in electrochemical installations, in the new car industry, in mechanical engineering and in other economic activities. The coating powder based on titanium suboxides having a defined defect structure is characterized in that it is modified by at least one metallic alloying element and described by general formula: TiMeO.

Coating powder of Cr or V doped titanium suboxides

The invention relates to bodies for separating out a component contained in a gas mixture. The gas mixtures may, for example, be crude gases which contain hydrocarbons, such as natural gas, or exhaust gas. According to the object which is set, the bodies according to the invention are intended to be able to separate components out of gas mixtures over longer periods of time with an approximately constant performance. The body according to the invention has regions which are active in the separation and are formed from a porous shell. These bodies which have a porous shell can be used in a device, and at least one bed formed from a bulk mass of these bodies may be present within a vessel, with the gas mixture being passed through this bed in order for the undesired component to be separated out. The invention is particularly advantageously suited to separating sulfur compounds out of gas mixtures.

Body for isolating a constituent contained in a gas mixture

A method of producing a plurality of discrete ultra-hard abrasive particles includes the steps of providing a plurality of granules, each comprising at least one ultra-hard abrasive particle, a precursor for the abrasive particle and a solvent/catalyst for the abrasive particle or precursor of such a solvent/catalyst, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions at which the ultra-hard abrasive particle is crystallographically stable, recovering thus treated material from the reaction zone and removing the separating medium in the treated material to produce a plurality of discrete abrasive particles.

Method of producing ultra-hard abrasive particles

A method is provided for producing a plurality of polycrystalline ultra-hard abrasive grit. The method includes the steps of providing a mass of ultra-hard abrasive particles or a mass of a combination of a precursor for such particles and a suitable solvent/catalyst, forming the mass into a plurality of green state granules, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions which the ultra-hard abrasive particle is crystallographically stable, recovering the thus sintered material from the reaction zone and removing the separating medium in the sintered material to produce a plurality of crystalline abrasive grit. The ultra-hard abrasive is generally diamond or cubic boron nitride.

Polycrystalline abrasive grit

Coating powder and method for its production

Modified composite silicon nitride powders for thermal coating

Growing community of inventors

Dresden, Germany

Manfred Nebelung