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6524385 Single crystal SiC composite material for producing a semiconductor device, and a method of producing the same  
In a single crystal SiC composite material for producing a semiconductor device, and a method of producing the same according to the invention, a single crystal SiC film which is produced on an Si...
6514395 Nanostructure-based high energy capacity material  
A nanostructure based material is capable of accepting-and reacting with an alkali metal such as lithium. The material exhibits a reversible capacity ranging from at least approximately 900...
6491888 pH control method of reducing nitrogen oxides emission  
The invention relates to a process for the selective recovery of olefins from a mixture of gases by: a) bringing a gaseous mixture having olefins and hydrogen into contact with silver nitrate...
6471931 Process for recycling spent pot liner  
The process includes the steps of combining silica with the spent pot liner in order to convert a majority of the spent pot liner into silicon carbide. Specifically, the silica reacts with carbon...
6436361 Silicon carbide and process for its production  
Silicon carbide having a resistivity of from 103 to 106 Ω·cm and a powder X-ray diffraction peak intensity ratio of at least 0.005 as represented by Id1/Id2 where Id1 is the peak intensity in the...
6403155 High purity, siliconized silicon carbide having high thermal shock resistance  
This invention is a high strength, thermal shock resistant, high purity siliconized silicon carbide material made from siliconizing a converted graphite SiC body having at least 71 vol % silicon...
6395245 Method for preparing carbon-containing composition  
A method for preparing a carbon-containing composition is disclosed which comprises the steps of introducing, into a hot gas, a dispersion obtained by dispersing, in a decomposable carbon...
6387342 Production of carbides and nitrides  
A method of making a compound selected from metal and silicon carbides and nitrides includes the steps of providing a solution of a coal-derived material in a solvent, the coal-derived material...
6300226 Formed SIC product and manufacturing method thereof  
A formed SiC product having a low degree of light transmittance useful in a variety of heat resistant components such as equalizing rings, dummy wafers, and other components employed in...
6270573 Silicon carbide substrate, and method for producing the substrate, and semiconductor device utilizing the substrate  
A silicon carbide thin film is epitaxially grown by an MBE or the like method with silicon atoms 2 being maintained to be in excess of carbon atoms on a growth surface 1a of a silicon carbide...
6261363 Technique for growing silicon carbide monocrystals  
A sublimation technique of growing silicon carbide single crystals, comprising a parallel arrangement, opposite each other, of the evaporating surface of a silicon carbide source (1) and the...
6251353 Production method of silicon carbide particles  
The present invention is to provide a production method of silicon carbide particles of high quality without generating a sulfur compound in the carbonizing and baking processes. More concretely,...
6221154 Method for growing beta-silicon carbide nanorods, and preparation of patterned field-emitters by chemical vapor depositon (CVD)  
A method and an apparatus have been developed to grow beta-silicon carbide nanorods, and prepare patterned field-emitters using different kinds of chemical vapor deposition methods. The apparatus...
6217842 Single crystal SIC and method of producing the same  
According to the present invention, a complex (M) which is formed by growing a polycrystalline β-SiC plate 2 having a thickness of 10 μm or more on the surface of a single crystal α-SiC base...
6217841 Process for the preparation of metal carbides having a large specific surface from activated carbon foams  
The invention relates to a silicon carbide or metal carbide foam to be used as a catalyst or catalyst support for the chemical or petrochemical industry or for silencers, as well as the process...
6214309 Sinterable carbides from oxides using high energy milling  
A method for the synthesis of micron- and submicron-sized, nanostructured metal carbide powders, comprising high energy milling of metal oxide and carbon precursors followed by annealing of the...
6207609 Method of forming molybdenum carbide catalyst  
A molybdenum carbide compound is formed by reacting a molybdate with a mixture of hydrogen and carbon monoxide. By heating the molybdate powder from a temperature below 300° C. to maximum...
6203864 Method of forming a heterojunction of a carbon nanotube and a different material, method of working a filament of a nanotube  
A carbon nanotube is contacted with a reactive substance which is a metal or a semiconductor. The reactive substance is heated to diffuse atoms of the reactive substance into the carbon nanotube...
6153165 Single crystal and method of producing the same  
According to the present invention, a complex (M) which is formed by growing a polycrystalline β-SiC plate 2 on the surface of a single crystal α-SiC base material 1 by the thermal CVD method is...
6133120 Boron-doped p-type single crystal silicon carbide semiconductor and process for preparing same  
A p-type silicon carbide semiconductor having a high carrier concentration and activation rate is provided by doping boron as an acceptor impurity in a single crystal silicon carbide. The boron...
6110275 Manufacture of titanium carbide, nitride and carbonitride whiskers  
There is disclosed a method of producing, in large volume and at low cost, titanium carbide, nitride and carbonitride whiskers, with preferably submicron diameters, to be used as reinforcing...
6087580 Semiconductor having large volume fraction of intermediate range order material  
A high quality non-single-crystal silicon alloy material including regions of intermediate range order (IRO) silicon alloy material up to but not including the volume percentage required to form a...
6022515 Process for producing silicon carbide  
Silicon carbide is produced in two steps in that silicon dioxide and a carbon source in a first step is reacted at a temperature in the range of 1500-1800° C., whereby the silicon dioxide and the...
6022820 Silicon carbide fibers with low boron content  
Silicon carbide (SiC) fibers, or SiC bodies such as coatings, thin films, substrates or bulk objects, which have been sintered with boron containing additives to promote densification and pore...
6013236 Wafer  
A wafer employing a silicon carbide sintered body is provided. The density of the silicon carbide sintered body is 2.9 g/cm3 or more. The silicon carbide sintered body is obtained by sintering a...
5997832 Preparation of carbide nanorods  
A process utilizing a supported metal catalyst, a volatile species source, and a carbon source has been developed to produce carbide nanorods with diameters of less than about 100 nm and aspect...
5993770 Silicon carbide fabrication  
An SiC film having an excellent strength and thermal characteristics. The SiC film is prepared by a CVD process (i.e. CVD-SiC fabrication) and has a thermal conductivity along the direction of the...
5980265 Low resistance, stable ohmic contacts to silicon carbide, and method of making the same  
Stable, high temperature electrical contacts to silicon carbide formed using a unique silicide formation process that employs a sacrificial silicon layer between the silicon carbide and the...
5968265 Method for producing silicon carbide monocrystals  
A method for producing cubic SiC monocrystals includes dissolving SiC powder or other starting material in a solvent at high overpressures and growing the monocrystals on a seed crystal.
5925310 Method of making a silicon carbide product  
A method of making a perforated silicon carbide product in a shorter time and with less labor work to achieve a lower cost and high yield. Openings 13a, 13b are previously formed in a mold 11, and...
5922300 Process for producing silicon carbide fibers  
A process for producing silicon carbide fibers is provided, comprising the steps of mixing a silicon supply source powder including a mixture of silicon powder and silicon dioxide powder having a...
5911945 Method for in-situ environment sensitive sealing and/or product controlling  
A single furnace loading cycle method for sintering at least one product comprises placing at least one product into a ventable/sealable box, and placing the box within the furnace. The box is...
5879593 Fire resistant liquid, process for preparing it, and fireproof building material and fire resistant adhesive using the fire resistant liquid  
A fire resistant liquid and a process for the preparation thereof characterized in reacting granulated potassium hydroxide, powdered sodium carbonate, lumps of metallic silicon and water.A...
5876683 Combustion flame synthesis of nanophase materials  
A low pressure combustion flame method for the production of nanophase powders, coatings and free-standing forms. The process involves controlled thermal decomposition of one or more metalorganic...
5866094 Method of feeding dopant for continuously-charged method and a dopant composition  
The object of the present invention affords a method of feeding dopant and a dopant composition used therein for easily preparing single crystals having a desired doping concentration during...
5863848 Preparation of substantially crystalline silicon carbide fibers from borosilazanes  
This invention relates to the preparation of thermally stable, substantially polycrystalline silicon carbide ceramic fibers using borosilazane resins. The method comprises spinning fibers from the...
5863325 Process for producing high purity silicon carbide powder for preparation of a silicon carbide single crystal and single crystal  
A process for producing high purity silicon carbide uses a high purity tetraethoxysilane or the like as the silicon source and a novolak-type phenol resin or the like as the carbon source. The...
5853653 Process for producing ceramic matrix composites by liquid infiltration of ceramic polymeric precursors  
Ceramic matrix composites (CMC) of high density, preferably of the type SiC/SiC, are provided by a production process based on the infiltration of ceramic fiber cloths with a polymeric precursor...
5851942 Preparation of boron-doped silicon carbide fibers  
A method of preparing polymer derived silicon fibers comprising the steps of providing a spin dope solution comprising a silicon carbide forming organosilicon polymer, preferably polycarbosilane,...
5851507 Integrated thermal process for the continuous synthesis of nanoscale powders  
A continuous process that produces nanoscale powders from different types of precursor material by evaporating the material and quenching the vaporized phase in a converging-diverging expansion...
5824281 Process for producing silicon carbide fibers  
The present invention provides a process for producing silicon carbide fibers having a C/Si molar ratio of from 0.85 to 1.39 and excellent in heat resistance and strength at high temperatures,...
5770324 Method of using a hot pressed silicon carbide dummy wafer  
This invention relates to hot pressed silicon carbide dummy wafers having low iron impurity levels, and a method of using hot pressed silicon carbide dummy wafers in silicon wafer processing...
5762895 Bearing material of porous SIC having a trimodal pore composition  
The invention relates to bearing materials of porous SiC having a trimodal pore composition and also a process for their production.The porous bearing material of pressureless-sintered SiC having...
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...
5733829 Process for the production of silicon carbide or silicon nitride whiskers  
A process for the production of silicon-containing ceramic whiskers is disclosed which includes the steps of: (a) forming a solid body of a mixture including an organosilicon polymer having a...
5720933 Process for preparing ceramic fibers  
A process for preparing silicon carbide fiber by the carbothermal reduction of silica fiber. In the first step of the process, a specified silica fiber is contacted with a source of elemental...
5707568 Preparation of substantially polycrystalline silicon carbide fibers from methylpolysilanes  
A process for the preparation of substantially polycrystalline silicon carbide fibers is provided. The fibers may be fabricated to have a small diameter and are thermally stable at high...
5676918 Method of producing silicon carbide fibers  
Silicon carbide fibers having a high mechanical strength at a high temperature, an excellent heat resistance and a uniform structure are produced by activating carbon fibers which have been...
5668188 Process for preparing silicon carbide foam  
A method of preparing near net shape, monolithic, porous SiC foams is disclosed. Organosilicon precursors are used to produce polymeric gels by thermally induced phase separation, wherein, a...
5656213 Process for the production of carbon-filled ceramic composite material  
A process for producing a carbon-filled ceramic composite material comprising a ceramic matrix and a carbon domain dispersed therein with a carbon domain diameter of from 0.01 to 30 μm and a...

Matches 101 - 150 out of 450 < 1 2 3 4 5 6 7 8 9 >