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7407523 Cutting tool insert and method for producing the same  
An improved cutting tool insert and a method for the preparation of such cutting tool insert, having a sintered alumina and silicon carbide whisker composite material body, comprising the steps of...
7368406 Whisker-reinforced ceramic containing aluminum oxynitride and method of making the same  
A ceramic body, as well as a method for making the same, wherein the ceramic body contains aluminum oxynitride and whiskers, (and optionally) one or more of titanium carbonitride, and/or alumina,...
7309475 Whisker-reinforced ceramic containing aluminum oxynitride and method of making the same  
A process of making aluminum oxynitride powder including the steps of: forming a powder mixture by mixing alumina powder and aluminum nitride powder according to the following formula: ((4−x)/3)...
7262145 Whisker-reinforced ceramic containing aluminum oxynitride and method of making the same  
A ceramic body, as well as a method for making the same, wherein the ceramic body contains aluminum oxynitride and whiskers, (and optionally) one or more of titanium carbonitride, and/or alumina,...
7175798 Cutting tool insert and method for producing the same  
An improved cutting tool insert and a method for the preparation of such cutting tool insert, having a sintered alumina and silicon carbide whisker composite material body, comprising the steps of...
6905992 Ceramic body reinforced with coarse silicon carbide whiskers and method for making the same  
A ceramic composite made by compacting a starting powder blend. The composite includes between about 50 volume percent and about 99 volume percent of a ceramic matrix; and between about 1 volume...
EP1443032A1 Cutting tool insert and method for producing the same  
An improved cutting tool insert and a method for the preparation of such cutting tool insert, having a sintered alumina and silicon carbide whisker composite material body, comprising the steps of...
6605556 High temperature composite material formed from nanostructured powders  
The present invention relates to high temperature composite materials formed from nano-sized powders suitable for use in the manufacture of jet engine components. The composite materials consist...
6169048 Method of manufacturing whisker-reinforced ceramics  
A method of making a whisker-reinforced ceramic body by hot pressing a preform to a disc, cutting the disc into blanks and grinding the blanks to bodies of desired shape and dimension is disclosed....
EP0579587B1 Whisker-reinforced ceramic body  
Abstract of EP0579587 According to the present invention there is now provided a whisker reinforced ceramic body comprising 2-50 % by volume whiskers and/or fibers and/or platelets and/or...
6022621 Mullite-containing coatings for inorganic fibers and ceramic matrix composites  
A ceramic matrix composite article comprised of inorganic fibers having a mullite-containing coating disposed within a matrix phase. The invention also provides a method for mating such an article,...
5932356 Abrasive/abradable gas path seal system  
A composite ceramic coating having abrasive properties for application to a metallic substrate is provided which includes a ceramic matrix and a plurality of ceramic abrasive particles disposed...
5688729 Whisker-reinforced ceramic material  
There is now provided a ceramic material comprising of alumina, 10-50% by volume, preferably 20-35% by volume, silicon carbide whiskers, 1-25% by volume, preferably 5-20% by volume, most preferably...
5656217 Pressureless sintering of whisker reinforced alumina composites  
A composite and pressureless sintering process for making whisker-reinforced alumina composites using a nitride modifier. The whiskers are milled to an aspect ratio of less than 10. Green preform...
5648029 Method of manufacturing inserts preferably for machining of heat resistant materials  
A method of manufacturing whisker reinforced ceramic bodies with new and improved properties. By replacing the tool pressing with injection molding, surprisingly a more homogeneous structure and...
5637269 Process for forming a sintered composite boron carbide body  
A process for the production of a sintered composite boron carbide body, the process comprising: (a) mixing 40.0 to 99.5 volume % of B 4 C with 0.5 to 60.0 volume % of fine grain powdered SiC,...
5616526 Whisker-reinforced ceramic material  
There is now provided a ceramic material comprising of alumina, 10-50% by volume, preferably 20-35% by volume, silicon carbide whiskers, 1-25% by volume, preferably 5-20% by volume, most preferably...
5601764 Process for making TiC-base/SiC whisker composite ceramic cutting tools  
A ceramic cutting tool of a TiC-based sintered body containing 40 wt % or more of TiC, and 5 to 40 wt % of SiC whisker uniformly dispersed in the sintered body, said SiC whisker having a diameter...
5573985 Ceramic matrix composites using strengthening agents of silicon borides of the form Si-B-C  
Strengthened and toughened ceramic composite bodies are achieved through the use of a silicon boride composition of silicon borides and borides of the form Si-B-C. This strengthening and hardening...
EP0506640B1 Inserts preferably for machining of heat resistant materials and process for producing the same.  
Abstract of EP0506640 The present invention relates to whisker reinforced ceramic bodies with new and improved properties. By replacing the tool pressing with injection moulding surprisingly a...
5538926 Alumina based ceramic material and method of manufacturing the same  
A mixed powder containing: 5-30 wt % of SiC whiskers; 3-30 wt % of a sintering auxiliary agent composed of one kind or more of oxides of Mg, Si, Ca, Ti, Zr, Cr, Ni, Y and rare earth elements; and...
5505751 Cutting tool  
A ceramic composition comprising a polycrystalline alumina matrix having titanium carbide whiskers distributed therein. The composition comprises 50 to 90 volume percent high purity alumina, 10 to...
EP0247630B1 Material for cutting tools, use of same and cutting tools  
Abstract of EP0247630 Cutting tools and materials for cutting ferrous work-pieces at high cutting speed comprise: a) a substrate based on a matrix composed of at least one selected from the group...
EP0692467A1 Whisker-reinforced ceramic material  
There is now provided a ceramic material comprising alumina, 10-50 per cent by volume, preferably 20-35 per cent by volume silicon carbide whiskers, 1-25 per cent by volume, preferably 5-20 per...
5449647 Silicon carbide whisker reinforced cutting tool material  
There is now provided an oxide based ceramic cutting insert for chipforming machining of heat resistant alloys comprising a ceramic oxide based matrix and 5-50% by volume of homogeneously dispersed...
5439854 TiC-base/SiC whisker composite ceramic cutting tools  
A ceramic cutting tool formed of a TiC-based sintered body contains 40 wt % or more of TiC, and 5 to 40 wt % of SiC whisker uniformly dispersed in the sintered body. The SiC whisker has a diameter...
5389586 Pressureless sintering of whisker reinforced composites  
A composite and pressureless sintering process for making whisker-reinforced alumina composites using about 2 to about 7.5 wt. % of a nitride modifier consisting essentially of silicon nitride,...
5376600 Pressureless sintering of whiskered-toughened ceramic composites  
A pressureless sintering method is disclosed for use in the production of whisker-toughened ceramic composites wherein the sintered density of composites containing up to about 20 vol. % SiC...
5358914 Methods of making shaped ceramic composites  
A method of producing self-supporting ceramic composite bodies of desired shape by infiltrating a permeable self-support preform with polycrystalline matrix material comprising an oxidation...
5346517 Method of manufacturing inserts preferably for machining of heat resistant materials  
The present invention relates to whisker reinforced ceramic bodies with new and improved properties. By replacing the tool pressing with injection molding, surprisingly a more homogeneous structure...
5340531 Refractory metal reinforced MoSi.sub.2 /SiC composite with matched thermal coefficients of expansion  
A method for producing a substantially silica-free composition of matter comprising a matrix of MoSi 2 having SiC dispersed therein, the matrix being reinforced with a particulate ductile...
5334562 Composite ceramic articles  
Self-supporting ceramic composite structures having filler embedded therein are taught as being produced by a method which includes infiltrating a permeable mass of filler with polycrystalline...
5322823 Ceramic composites and process for its production  
A ceramics composites prepared by dispersing any one of the following materials (i) to (viii) in Al 2 O 3 which as a matrix-containing crystalline grains having a grain size of 0.5 to 100 μm....
5312785 Sintered self-reinforced silicon nitride  
A dense, self-reinforced silicon nitride ceramic body and a method of making such body. The body has a composition that includes: (a) silicon nitride; (b) a glassy grain boundary phase containing...
EP0353297B1 A SELF-REINFORCED SILICON NITRIDE CERAMIC OF HIGH FRACTURE TOUGHNESS AND A METHOD OF PREPARING THE SAME  
Abstract not available for EP0353297 Abstract of corresponding document: US4883776 A process for preparing a self-reinforced silicon nitride ceramic body of high fracture toughness comprising...
EP0376975B1 ALUMINA COATED SILICON CARBIDE WHISKER-ALUMINA COMPOSITION  
Abstract not available for EP0376975 Abstract of corresponding document: US4801510 An article of manufacture is provided having a SiC whisker reinforced alumina matrix substrate which has an...
EP0579587A1 Whisker-reinforced ceramic body.  
According to the present invention there is now provided a whisker reinforced ceramic body comprising 2-50 % by volume whiskers and/or fibers and/or platelets and/or submicron particles in a...
EP0441877B1 ALUMINA-ZIRCONIA-SILICON CARBIDE-MAGNESIA CERAMIC ARTICLES  
Abstract not available for EP0441877 Abstract of corresponding document: WO9005045 An article of manufacture, preferably a metal-cutting insert (10), is provided with an alumina based ceramic...
EP0279102B1 Transformation toughened zirconia-titania-yttria ceramic alloys  
Abstract of EP0279102 Disclosed is the production of ceramic compositions consisting essentially of Zr02, titania, and yttria or rare earth oxides such as gadolina, ytterbia, neodinia, and ceria....
5254142 Whisker reinforced composites for cutting tools with improved performance  
The properties of silicon carbide whisker reinforced aluminum oxide, at present used for cutting tools when machining nickel based alloys, are in a very complex way related to processing and...
5250477 Silicon nitride based composite with improved fracture toughness  
Composite materials, articles and cutting tools are prepared by densification to form a body comprising whiskers of hard refractory transition metal carbides, nitrides or carbonitrides uniformly...
5243970 Dosing device for administering metered amounts of powdered medicaments to patients  
A powder dispenser assembly includes a container for holding a supply of powdered material, the container including a conduit extending therethrough; a metering plate rotatably mounted with respect...
5240782 Fiber and whisker reinforced composites and method for making the same  
A composite material (20) comprises a matrix layer (21) having a plurality of interspersed reinforcing whiskers (23) and a plurality of continuous reinforcing fibers (25) embedded within the matrix...
EP0377654B1 WHISKER REINFORCED CERAMICS AND A METHOD OF CLAD/HOT ISOSTATIC PRESSING SAME  
Abstract not available for EP0377654 Abstract of corresponding document: US4820663 A method of manufacturing a shaped ceramic article by hot isostatic pressing comprising the following steps: (a)...
EP0333776B1 IMPROVED CUTTING TOOL  
Abstract not available for EP0333776 Abstract of corresponding document: US4852999 A ceramic composition comprising a polycrystalline alumina matrix having titanium carbide whiskers distributed...
5227344 Ceramics composite article and method for making same  
Ceramic composite articles having dispersed whiskers or platelets oriented parallel to an outer surface of the articles and in two-dimensionally random directions thereof. The articles may be made...
EP0477093B1 Milling cutter tool with body and head made out of different materials and method of making  
Abstract of EP0477093 Milling tool comprising a tool body and a machining head which are distinct. According to the invention the machining head (2) is made of a ceramic and is added onto the tool...
5221578 Weak frangible fiber coating with unfilled pores for toughening ceramic fiber-matrix composites  
A ceramic fiber/ceramic matrix composite has ceramic fibers and a porous coating on the fibers. A ceramic matrix contacts the porous coating, the fiber and coating being immersed in the ceramic...
5207958 Pressureless sintering of whisker-toughened ceramic composites  
A pressureless sintering method is disclosed for use in the production of whisker-toughened ceramic composites wherein the sintered density of composites containing up to about 20 vol. % SiC...
5207263 VLS silicon carbide whisker reinforced metal matrix composites  
A method for preparing vapor-liquid-solid silicon carbide whisker reinforced metal matrix composites by a squeeze casting process employing a primary pressure and then a hydrostatic pressure to...
Matches 1 - 50 out of 150 1 2 3 >