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

Other

Element Six (Production) (Pty) Ltd.

University of the Witwatersrand, Johannesburg

H.c. Starck Ceramics Gmbh & Co. Kg

Element Six Gmbh

Mathias Herrmann

Iakovos Sigalas

Geoffrey John Davies

Thembinkosi Shabalala

Anthony Andrews

Gerhard Wötting

Lutz-Michael Berger

Manfred Nebelung

Holger Lausch

Steffen Kunze

Stefan Siegel

Hagen Klemm

Bernd Gronde

Thomas Toeppel

Romy Petters

Christian Rotsch

Robert B Heimann

Bernhard Wielage

Christian Schubert

Katja Tangermann

Johannes Pötschke

Bjoern Matthey

Phylis Sarah Makurunje

David Stuart McLachlan

Grit Michael

Lutz Frassek

Thomas TÖPPEL

The invention relates to SiC-bound diamond hard material particles, a porous component formed with SiC-bound diamond particles, methods for producing same and the use thereof. Diamond hard material particles and components have a composition of 30 vol. % to 65 vol. % diamond, 70 vol % to 35 vol. % SiC and 0 to 30 vol. % Si, and a component has a porosity in the range of 10% to 40%

SiC-bound hard material particles, porous component formed with SiC-bound diamond particles, method of producing same and use thereof

The invention concerns the field of hardmetal materials and relates to hardmetals such as those which can, for example, be used as cutting material for tools. The object of the present invention is to specify hardmetals which include a novel concept for the structural composition of the hardmetals. The object is attained with hardmetals which are at least made up of hard phases in particle form and metal binder arranged therebetween, wherein a high-entropy hard phase (HEH) is composed of at least four metals (Me) of the 4th and/or 5th and/or 6th subgroup of the PTE in the form of a solid solution of carbides, nitrides, carbonitrides, oxycarbides, and/or oxycarbonitrides of the metals, wherein the respective amounts of the metals in the HEH are essentially equal.

Hardmetals and method for producing the same

The invention relates to a composite body, wherein at least one functional component is integrated into a shaped product, and to a method for producing the same. The shaped product can especially be an implant, a prosthesis, an industrial component or a multifunctionally useful sensor platform for the monitoring of materials, components and/or structural systems.

Composite body having at least one functional component, and a method of producing said composite body

The present invention provides for carbide ceramic matrix composite comprising C/C&#x2014;SiC-xMC wherein C/C is a carbon fiber reinforced carbon matrix, x is at least 2, and wherein MC are carbides of transition metals with M being at least two different transition metals selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, and tungsten. The invention further provides for a method for manufacturing the composite.

Ceramic composite and method to prepare the composite

The invention provides a boron suboxide composite material comprising boron suboxide and a secondary phase, wherein the secondary phase contains a rare earth metal oxide. The rare earth metal oxide may be selected from the oxides of scandium, yttrium, which is preferred, and elements of the lanthanide series, and may be a mixture of rare earth metal oxides. The secondary phase may also include, in addition to the rare earth metal oxide(s), a further oxide or mixture of oxides of an element of the Groups IA, MA, MIA, and IVA of the periodic table. Moreover, the secondary phase may also contain a boride, and particularly a boride selected from the borides of transition metals of the fourth to eighth groups of the periodic table.

Boron suboxide composite material

The invention provides a boron suboxide composite material comprising boron suboxide and a secondary phase, wherein the secondary phase contains a boride. The boride may be selected from the borides of transition metals of the fourth to eighth groups of the periodic table. Particularly, the boride may be selected from the borides of iron, cobalt, nickel, titanium, tungsten, hafnium, tantalum, zirconium, rhenium, molybdenum or chromium. The boride also may be a platinum group metal boride, preferably palladium boride. The secondary phase also may contain one or more oxides.

Boron suboxide composite materials

A method of producing a boron suboxide composite material having improved fracture toughness.

Method of producing a boron suboxide material

A boron suboxide composite material having improved fracture toughness consists of particulate or granular boron suboxide distributed in a binder phrase, such as AlBO, for example.

The present invention is directed to bearings produced from a silicon nitride material. The silicon nitride material consists of a sintering aid selected from the group consisting of AlOand YO, silicon dioxide, and optionally, up to 10 mole %, based on the amount of silicon nitride, of an additive that reacts with silicon nitride, said additive selected from the group consisting of TiO, WO, MoOand mixtures thereof.

[object Object]

Modified composite silicon nitride powders for thermal coating

The invention discloses a dense silicon nitride composite material which may be used as a high-temperature component in building armatures and motors with a long service life and high reliability even at higher temperatures. More specifically, the invention discloses a dense silicon nitride composite material containing 3 to 50 wt. % of a reinforcing component, in which the reinforcing component contains 10 to 90 wt. % Me.sub.5 Si.sub.3 and the remaining portion is either MeSi.sub.2 or MeSi.sub.2 and silicides with other stoichiometries and Me is a metal or a mixture of metals. The present invention is made by a method in which the material is produced by sintering and/or hot pressing and/or hot isostatic pressing and the reinforcing components are added as Me.sub.5 Si.sub.3 and MeSi.sub.2 powder or as a preliminary stage in which, until closed porosity is achieved, a nitrogen pressure/temperature ratio corresponding to a predetermined relationship is maintained which results in the formation and stabilization of Me.sub.5 Si.sub.3.

Dense silicon nitride composite material

Growing community of inventors

Coswig, Germany

Mathias Herrmann