Matches 51 - 100 out of 265 < 1 2 3 4 5 6 >
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5399432 Galvanically compatible conductive filler and methods of making same  
Composite particles suitable as conductive filler for electrically conductive compositions which can be used as gaskets, caulking and plastics, for example. The compositions are useful as EMI...
5322824 Electrically conductive high strength dense ceramic  
A low cost pressureless sintered silicon carbide ceramic composite having relatively high electrical conductivity, relatively high density and relatively great mechanical strength, in comparison to...
5294374 Electrical overstress materials and method of manufacture  
This invention provides a method of preparing an electrical overstress material having a nonlinear resistance which declines sharply in response to an electric field exceeding a clamping voltage so...
5286416 Galvanically compatible conductive filler useful for electromagnetic shielding and corrosion protection  
Composite particles designed as a filler for gaskets, caulking compounds and plastics in general. The unique properties are obtained by using a soft metal core galvanically similar to the metal the...
5269971 Starting material for use in manufacturing a voltage non-linear resistor  
A voltage non-linear resistor element mainly including ZnO, substantially free from internal defects, exhibiting an excellent current impulse withstand capability, can be manufactured by a process...
5248517 Paintable/coatable overvoltage protection material and devices made therefrom  
A nonlinear transient overvoltage protection coating material and process for coating are disclosed herein. The viscous paintable material is for overvoltage protection and/or for use in detecting...
5246480 Sintered contact material based on silver for use in power engineering switch-gear, in particular for contact pieces in low-voltage switches  
In a contact material, there is present in addition to silver, at least one higher melting point metal, metal alloy or metal compound. According to the invention, the material contains in addition...
5232775 Semi-conducting static-dissipative polymeric composites  
A semi-conductive, static-dissipative polymeric composite comprising an insulative polymeric resin, and from about 5 to about 60 volume percent of a particulate filler having thin-film, inorganic...
5217583 Composite electrode for electrochemical processing and method for using the same in an electrolytic process for producing metallic aluminum  
A dimensionally stable combustion synthesis product of a composition containing at least 20% by weight of a particulate combustible material; at least 15% by weight of a particulate filler material...
5196385 Process for the preparation of a heat-resistant and wear resistant ceramic material  
A process for preparation of heat-resistant and wear-resistant ceramic material which comprises sintering the material under a non-oxidizing atmosphere until the metal of a component (a) no longer...
5175056 Galvanically compatible conductive filler  
Composite particles designed as a filler for gaskets, caulking compounds and plastics in general. The unique properties are obtained by using a soft metal core galvanically similar to the metal the...
5108659 Sintered body of conductive sialon and heating element made thereof  
This invention relates to a sintered body of conductive sialon and a heater element made of this sintered body. They are relieved from damage by partial expansion without any adverse effect on...
5106540 Conductive polymer composition  
A composition which comprises a matrix polymer and, distributed therein, a particulate conductive filler. At least some of the filler particles are composed of a conductive polymer composition...
5098609 Stable high solids, high thermal conductivity pastes  
A paste including a thermally conducting solid filler, a nonaqueous liquid carrier and a stabilizing dispersant. The pastes are highly concentrated, of low viscosity, electrically resistive, highly...
5093039 Highly pure sintered carbide with high electric conductivity and process of producing the same  
Disclosed is an electrically conductive sintered silicon carbide body having an electric resistivity of not higher than 1 Ωcm, which is produced by (a) mixing (1) a first silicon carbide...
5086210 Mo.sub.5 Si.sub.3 C ceramic material and glow plug heating element made of the same  
An electrically conductive ceramic material containing at least 20 wt % of Mo 5 Si 3 C and having a resistance-temperature coefficient no greater than 5×10 -4 deg -1 is used to make the...
5085804 Refractory electrical device  
The present invention is an electrical device made up of a mixture of silicon carbide and molybdenum disilicide, and may include silicon nitride or aluminum nitride or boron nitride. An electrical...
5082806 Semi-conducting ceramic  
A semi-conducting ceramic is disclosed. The ceramic consists essentially of from 50 percent to 72 percent of silicon carbide particles, from 25 percent to 47 percent of silicon nitride particles...
5082597 Sintered silicon carbide composite  
Disclosed herein is a sintered silicon carbide composite prepared by sintering a blend comprising from 25 to 85% by weight of silicon carbide, from 1 to 25% by weight of at least one of chromium...
5066423 Conductive ceramic sintered body  
A conductive ceramic sintered body substantially free from large variation of electric resistivity, which consists essentially of: (a) a silicon nitride-base ceramic as a matrix; (b) 10-70 volume %...
5057244 Transparent, electrically conductive film  
A transparent, electrically conductive film suitable for use as a transparent electrode in various optical devices is provided. The film comprises a first element selected from a first group...
5008042 Fluororesin-containing coating composition and use thereof  
A fluororesin-containing composition comprising a fluororesin, a fibrous material coated by an electrically conductive oxide, an acrylic resin and a liquid medium wherein the weight ratio of the...
5000875 Conductive filled fluoropolymers  
Tetrafluoroethylene copolymer compositions containing conductive carbon black, graphite fiber or thermally conductive fillers have significantly increased conductivity when the tetrafluoroethylene...
4999137 Semi-conductive ceramic composition and its use in the manufacture of spark plugs  
The semi-conductive ceramic composition is obtained according to the invention from (a) a basic composition containing 40 to 80% by weight of a semi-conductor which is a silicon or boron carbide, 5...
4966729 Material having a resistivity with a positive temperature coefficient  
The invention relates to an electrically conductive, polymer based material with electrical resistivity having a positive temperature coefficient. The material comprises a matrix of thermosetting...
4952902 Thermistor materials and elements  
A thermistor material comprising, in sintered form, (A) a matrix comprising aluminum oxide, silicon oxide, or the oxide of an element belonging to Group 2A in the Periodic Table, and (B) a...
4894273 Bonding additives for refractory metallization inks  
Bonding additives for refractory metallization compositions allow for circuit traces having good resistivities and adhesion values in excess of 6 kpsi, generally between about 10 and 20 kpsi. The...
4853155 Electrically conductive synthetic resin composition  
An electrically conductive synthetic resin comprises a synthetic resin mixed with at least one kind of niobium and niobic substances by melting in which the synthetic resin contains the latter...
4837231 Sintered non-oxide ceramic composite  
A sintered non-oxide ceramic composite high in density, high-temperature strength and toughness and having optionally and widely changeable electrical conductivity is obtained by compacting and...
4828614 Ferrophosphorous composition having improved conductivity and passivation resistance  
A ferrophosphorous composition with improved conductivity and passivation resistance in prepared by treating ferrophosphorus particles with an aqueous solution containing a dilute mineral acid and...
4822523 Electrically conductive, potentially adhesive composition  
The present invention relates to electrically conductive potentially adhesive compositions and to films formed from these compositions which are capable of being employed in particular for the...
4786438 Lignosulfonate/urea binder for particulate composites  
A coherent particulate composite is formed by blending particulate material with a binder containing lignosulfonate and urea.
4769074 Binder/suspension composition and method of preparation thereof  
A binder/suspension liquid for use with refractory compounds and the like. Oxidation prevention coatings for up to at least 1000 degrees Centigrade are described. Both a graphite non-conductive and...
4753903 Silicon carbide sintered body and a manufacturing method therefor  
A silicon carbide sintered body suitable for electrical discharge machining and a method for its manufacture are disclosed. The silicon carbide sintered body comprises 0.5-5% by weight of AlN,...
4732701 Polymer composition having positive temperature coefficient characteristics  
A polymer composition having positive temperature coefficient characteristics is described, comprising 100 parts by weight of a mixture consisting of from 40 to 90% by weight of a crystalline...
4732706 Method of preparing low viscosity, electrically conductive ferrofluid composition  
A low viscosity, electrically conductive ferrofluid composition and method of making and using same, which composition comprises: a first polar liquid carrier; a second polar liquid carrier...
4728462 Ferrophosphorus composition having improved conductivity and passivation resistance  
A ferrophosphorus composition with improved conductivity and passivation resistance is prepared by treating ferrophosphorus particles with an aqueous solution containing a dilute mineral acid and...
4726991 Electrical overstress protection material and process  
A material provides protection against electrical overstress transients having rise times as rapid as a few nanoseconds or less. The material comprises a matrix formed of a mixture of separate...
4713582 Spark plug  
A spark plug having an improved radio noise suppression effect and durability of the resistor. The resistor of the spark plug is made of a sintered material comprising by weight, 0.9-3.0% of one of...
4711666 Oxidation prevention coating for graphite  
An oxidation prevention coating for graphite up to at least 1000 degrees Centigrade. Both a non-conductive and a conductive coating are described for use in coating graphite crucibles, graphite...
4701279 Anisotropically electroconductive adhesives  
An anisotropically electroconductive adhesive which is solid at room temperature, preferably, in the form of a film is prepared by dispersing conductive particles such as metal particles and the...
4696764 Electrically conductive adhesive composition  
An electrically conductive adhesive composition which provides electric conductivity between facing electrodes but maintains electric insulation in the lateral direction across the facing...
4689196 Silver-tungsten carbide-graphite electrical contact  
An electrical contact comprises 5 to 20 weight percent tungsten carbide, 0.5 to 3 weight percent graphite, balance silver. The contact has low erosion rate, low contact resistance, and anti-welding...
4687903 Thermostatically controlled electrically heated soldering bit  
A soldering iron bit is heated by an electrical heating element including a resistive element consisting of granular boron carbide packed in a quartz tube embedded in a piece of copper. A first...
4687596 Low viscosity, electrically conductive ferrofluid composition and method of making and using same  
A low viscosity, electrically conductive ferrofluid composition and method of making and using same, which composition comprises: a first polar liquid carrier; a second polar liquid carrier...
4661740 Polycrystalline sintered bodies based on lanthanum hexaboride, and a process for their manufacture  
The invention is a polycrystalline sintered body based on lanthanum hexaboride and having a density of at least 95% of the theoretical density. The sintered body comprises lanthanum hexaboride,...
4659508 Electrically-conductive sintered compact of silicon nitride machinable by electrical discharge machining and process of producing the same  
An electrically-conductive sintered compact of silicon nitride which is machinable by electrical discharge machining and a process to produce the same. TiN and/or TiC powder is added to a powder of...
4657699 Resistor compositions  
The invention is directed to a thick film resistor composition for firing in a low oxygen-containing atmosphere comprising finely divided particles of (a) a semiconductive material consisting...
4647404 Process for preparing a metamorphosed metal oxide  
A process for preparing a metamorphosed metal oxide, which comprises heating, under a non-oxidative (and not hydrogenous) atmosphere, a mixture of at least one metal oxide, said metal being...
4633064 Sintered ceramic electric heater with improved thermal shock resistance  
A sintered ceramic heater, particularly a heater for a glow plug of a diesel engine, includes a sintered ceramic heater, which generates heat upon receiving an electric current, supported by an...
Matches 51 - 100 out of 265 < 1 2 3 4 5 6 >