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8173561 Inert high hardness material for tool lens production in imaging applications  
A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. %...
8147980 Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof  
The invention relates to a metal matrix ceramic composite (MMCC) wear-parts comprising a wearing portion formed by a ceramic cake and is impregnated by metal. The ceramic cake comprises ceramic...
8148281 Titanium carbide powder and titanium carbide-ceramics composite powder and method for production thereof, and sintered compact from the titanium carbide powder and sintered compact from the titanium carbide/ceramics composite powders and method for production thereof  
Disclosed is a highly-pure fine titanium carbide powder having a maximum particle size of 100 nm or less and containing metals except titanium in an amount of 0.05 wt % or less and free carbon in...
7915187 Titanium carbide powder and titanium carbide-ceramics composite powder and method for production thereof, and sintered compact from the titanium carbide powder and sintered compact from the titanium carbide/ceramics composite powders and method for production thereof  
Disclosed is a highly-pure fine titanium carbide powder having a maximum particle size of 100 nm or less and containing metals except titanium in an amount of 0.05 wt % or less and free carbon in...
7854912 High strength Zr (Hf or Ti)-Ta-B ceramics  
The crystal structure of three compositions of matter has been determined to be iso-structural with FeB ortho-rhombic (space group Pnma). The crystalline structures are: Ti0.5Ta0.5B, Zr0.5Ta0.5B...
7833921 Composite material and method of manufacturing the same  
A composite material according to the invention includes X parts by volume of boron carbide, Y parts by volume of silicon carbide, and Z parts by volume of silicon as main components, wherein...
7766983 Nanostructured corrosion inhibitors and methods of use  
A corrosion inhibitor composition for a fuel, comprising a plurality of nanoparticles formed of an inorganic composition having an average longest dimension of 1 nanometer to 100 nanometers,...
7727458 Method of forming a chalcogenide compound target  
In a method of forming a chalcogenide compound target, a first powder including germanium carbide or germanium is prepared, and a second powder including antimony carbide or antimony is prepared. A...
7655750 Process for the continuous preparation and isolation of soluble preceramic oligomers and/or polymers  
The invention relates to a method for continuously producing pre-ceramic polymers. The inventive method consists in synthesizing polymers, in separating polymers from a reaction mixture and in...
7557054 Boron carbide sintered body and protective member  
The compressive strength of a boron carbide sintered compact is improved by controlling crystals of the boron carbide to a polycrystalline structure having a grain size distribution in which coarse...
7345849 Magnetic head slider material, magnetic head slider, and method of manufacturing magnetic head slider material  
The magnetic head slider material of the present invention is constituted by a sintered body containing 100 parts by weight of alumina, 20 to 150 parts by weight of titanium carbide and silicon...
7332221 Boron carbide composite bodies, and methods for making same  
A composite body produced by a reactive infiltration process that possesses high mechanical strength, high hardness and high stiffness has applications in such diverse industries as precision...
7297649 Silicoboroncarbonitride ceramics and precursor compounds, method for the production and use thereof  
The present invention relates to novel alkylhalosilylaminoboranes, in particular alkylchlorosilylaminoboranes, which make it possible to adjust the viscosity of polyborosilazane compounds by...
7267882 Ceramic/metal material and method for making same  
An improved ceramic/metal composite material is disclosed which is fully reacted with aluminum. The composite is made from a ceramic preform, such as silicon carbide, having a binding agent, such...
7195722 Compositions for ceramic igniters  
Ceramic igniter compositions are provided that contain components of conductive material and insulating material, where the insulating material component includes a relatively high concentration of...
7094821 Method of making tungsten carbide based hard metal tools or components  
Preparation, handling, and spray drying, in an economic and environmentally-friendly way, of slurries for the production of tungsten carbide based hard metal tools or components by the powder...
6986873 Method of producing a metal-containing single-phase composition  
A method of producing a single-phase composition Mn+1AzXn, primarily the production of the single-phase material Ti3SiC2, where n lies within a range of 0.8-3.2, where z lies within a range of...
6984454 Wear-resistant member having a hard composite comprising hard constituents held in an infiltrant matrix  
A tough wear-resistant hard member that includes a hard composite member and a support that has a surface area adjacent to the hard composite member wherein the hard composite member is affixed to...
6844281 Reinforcement preform for metal matrix composites  
A preform for use in a metal matrix composite, particularly for a magnesium metal composite. In the preform the reinforcing material typically is silicon carbide, boron nitride, titanium nitride,...
6841508 Carbide and oxycarbide based compositions, rigid porous structures including the same, methods of making and using the same  
Compositions including oxycarbide-based nanorods and/or carbide-based nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous...
6620756 Ceramic matrix composite cutting tool material  
A reinforcing material is uniformly dispersed in a yttrium aluminum garnet matrix material for use as a machine tool material specially suited for machining Ti or a Ti alloy. The matrix material...
6617271 Tungsten carbide cutting tool materials  
The disclosed invention describes a new high-performance binderless high purity tungsten carbide material, its manufacturing and applications as a cutting tool material.
6395045 Hard material titanium carbide based alloy, method for the production and use thereof  
The present invention relates to a method for producing an abrasive grain from a hard-material alloy based on titanium carbide, with alloying contributions from the group of carbides, nitrides,...
6287714 Grain growth inhibitor for nanostructured materials  
A method comprising incorporation of an inorganic polymer precursor of a grain growth inhibitor into nanostructured materials or intermediates useful for the production of nanostructured materials....
6171989 Silver-colored sintered product and method of producing the same  
A silver-colored sintered product having excellent corrosion resistance containing titanium, carbon and boron as indispensable constituent elements, and including in the sintered product...
6133182 Alumina base ceramic sintered body and its manufacturing method  
This invention provides an alumina base ceramic sintered body excellent in wear resistance with high hardness, also with high strength and high toughness, and particularly suitable for a cutting...
6069101 Boron carbide/silicon carbide ceramics  
Ceramic composites of silicon carbide (SiC) grains and boron carbide (B.s4 C) grains which are uniformly coated with SiC are produced by reacting stoichiometric mixtures of silicon boride (SiB4,...
6042627 Aluminum-boron-carbon abrasive article and method to form said article  
An aluminum-boron-carbon abrasive article is comprised of at least three phases selected from the group consisting of: B4 C; AlB2 ; AlB12 ; AlB12 C2 ; Al4 C3 ; AlB24,C4 ; Al4 B1-3 C4 ; AlB24 C4 and...
6030912 Sintered hard material  
A sintered hard material according to the invention comprises 0.02 to 0.10 wt % of one or more metals selected from the group consisting of Fe, Co and Ni, 0.3 to 3.0 wt % of one or more compounds...
5928976 Composite carbide powder used for cemented carbide and method of producing the same  
In order to provide cemented carbide, provision is made about tungsten carbide powder which has a grain size not smaller than 1 μm and which is mixed with carbon powder and chromium powder to form ...
5914285 Substrate material for a magnetic head  
To provide a substrate material having characteristics suitable to a magnetic head for attaining high recording density. A substrate material for a magnetic head comprising a matrix phase of a...
5894066 Boron carbride/silicon carbide ceramics  
Ceramic composites of silicon carbide (SiC) grains and boron carbide (B.s4 C) grains which are uniformly coated with SiC are produced by reacting stoichiometric mixtures of silicon boride (SiB4,...
5888669 Transition metal-based ceramic material and articles fabrication therefrom  
A non-oxide, transition metal based ceramic material has the general formula Ay M2 Zx, wherein A is a group IA element, M is a transition metal and Z is selected from the group consisting of N, C,...
5880382 Double cemented carbide composites  
Double cemented carbide composites comprise a plurality of first regions and a second ductile phase that separate the first regions from each other. Each first region comprises a composite of...
5869019 Synthesis of phase stabilized vanadium and chromium carbides  
In order to eliminate the oxygen sensitivity of chromium carbide and vanadium carbide particles, vanadium carbide and chromium carbide particles are formed by carburizing a precursor compound at a...
5856251 Castable refractory for slide gate  
Castable refractory for a slide gate plate is mainly formed of alumina raw material and amorphous carbon raw material of 2 to 15 wt %, and contains silicon carbide and/or boron carbide, the total...
5852088 Nanoporous ceramics with catalytic functionality  
The present invention provides for amorphous, nanoporous, catalytic metal-containing ceramic material having a surface area in excess of 70 m2 /gm and characterized by a high content of open...
5820789 High voltage ceramic igniter  
A method of heating, comprising the step of providing a line voltage of between 120V and 230 V across a ceramic igniter having a hot zone composition comprising: (a) between 50 and 80 v/o of an...
5756410 Method for making submicrometer transition metal carbonitrides  
A submicrometer transition metal carbonitride is produced having the formula: Ma M'b M"(1-a-b) (C1-x) Nx)zwherein M is Ti, Zr or Hf; M' is V, Nb or Ta; M" is Cr, Mo or W; a ranges from 0 to 1; b...
5756409 Silicon-carbide sintered abrasive grain and process for its production  
Abrasive grain with significantly improved toughness is obtained by pressureless sintering of α-silicon carbide powder with oxidic sinter additives, especially aluminum oxide/yttrium oxide, which ...
5733664 Matrix for a hard composite  
A matrix powder for formation along with an infiltrant into a matrix for use as a wear element or for use in retaining at least one discrete hard element. The matrix powder includes crushed...
5672435 Hard disk drive components and methods of making same  
Hard disk drive components, such as, sliders, load beams, support arms, actuators, actuator bearings, spacers, clamps, spindles, ball bearings, thrust bearings, journal bearings, base plates,...
5670253 Ceramic wafers and thin film magnetic heads  
A composite ceramic wafer including a beta silicon carbide layer. The composite ceramic wafer is useful for making thin film magnetic heads.
5665661 Crystallization of grain boundery phases in silicon carbide ceramics  
A silicon carbide ceramic having crystalline grain boundary phases is prepared by heating a composition comprising silicon carbide, a silicate glass and a high metal content transition metal...
RE35538 Sintered body for chip forming machine  
The present invention relates to a sintered body for chip forming machining containing at least one hard constituent comprising a carbide, nitride and/or carbonitride of a metal of group IVB, VB or...
5637266 Method for forming chromium carbide based ceramics composite block gauge  
A composite ceramic block gauge is formed from a tungsten carbide (WC) reinforced phase and a chromium carbide (Cr3 C2) matrix. The finished block gauge possesses excellent properties such as...
5612264 Methods for making WC-containing bodies  
A method of forming a low level carbon high-density tungsten carbide-containing material includes sintering a preform which contains tungsten carbide powder and has a composition such that the...
5590393 Neutron-absorbing material and its production process  
The invention relates to a neutron-absorbing material and to its production process.This material comprises a homogeneous, boron carbide matrix 1 in which are dispersed e.g. pseudospherical, 150 to...
5580833 High performance ceramic composites containing tungsten carbide reinforced chromium carbide matrix  
A high performance ceramic composite containing tungsten carbide reinforced chromium carbide matrix in which 5.about.35 vol % of tungsten carbide particles are uniformly dispersed in 65.about.95...
5545248 Titanium-base hard sintered alloy  
A titanium-base sintered alloy which comprises a TiC and/or TiN or Ti(C,N) solid solution accounting for 5 to 70 vol %, with the remainder being composed of two components. The first component is...
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