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| Number | Title | Issue Date |
| 5944963 | Method of coating a substrate with a SiCx film The invention provides a silicon carbide sputtering target comprising non-stoichiometric silicon carbide, SiCx, where x is the molar ratio of carbon to silicon and x is greater than about 1.1 but less than about 1.45. The sputtering target of t... | 08/31/1999 |
| 5763093 | Aluminum nitride body having graded metallurgy Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct con... | 06/09/1998 |
| 5741403 | Ceramic substrates and magnetic data storage components prepared therefrom Substrates are disclosed having an ultra-smooth surface finish thereon rendering them useful in making high density magnetic storage components, such as a computer hard disk or thin-film head which can read and/or write data on such disks. The substrates ... | 04/21/1998 |
| 5563108 | Raw batch for producing reaction-bonded silicon carbide refractory product This invention provides a reaction-bonded silicon carbide article having superior abrasion resistance, oxidation resistance and uniformity in which the bond phase comprises appreciable amounts of both silicon oxynitride and alumina. Also provided are a ra... | 10/08/1996 |
| 5558045 | Refractory tile for open-spaced boiler tubes A refractory tile adapted for protecting boiler tubes from the corrosive and erosive effects of a hot gas stream comprises an elongated ceramic body covering only that side of a boiler tube upon which the hot gas impinges. The tile is hung on the tube wit... | 09/24/1996 |
| 5552232 | Aluminum nitride body having graded metallurgy Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct con... | 09/03/1996 |
| 5521129 | Sialon-bonded silicon carbide refractory A predominantly ଲ'-sialon-bonded silicon carbide refractory article is produced by reaction-nitriding a green body containing a plurality of silicon carbide powders, none having an average particle size greater than about 200 micrometers, a metal ox... | 05/28/1996 |
| 5484655 | Aluminum nitride-coated silicon carbide fiber The invention provides a silicon carbide fiber carrying an aluminum nitride coating between about 1 and about 15 micrometers thick. The AlN coating serves as a debond layer which improves the fracture toughness of composite materials in which the coated f... | 01/16/1996 |
| 5459112 | Reaction-bonded silicon carbide refractory product This invention provides a reaction-bonded silicon carbide article having superior abrasion resistance, oxidation resistance and uniformity in which the bond phase comprises appreciable amounts of both silicon oxynitride and alumina. Also provided are a ra... | 10/17/1995 |
| 5441799 | Porous silicon carbide Silicon carbide sintered bodies having controlled porosity in the range of about 3-25 vol % are prepared from raw batches containing a multimodal distribution of silicon carbide particles and comprised of at least a first set of particles having one avera... | 08/15/1995 |
| 5436042 | Ceramic fiber-reinforced composite articles and their production This invention is directed to substantially strain-free, shaped, sintered ceramic fabric preform segments, to the production of the sintered preform segments from novel fixtured, shaped, green ceramic fabric preforms, and to sintered ceramic fiber-reinfor... | 07/25/1995 |
| 5424261 | Low temperature sintering route for aluminum nitride ceramics An aluminum nitride ceramic having desired properties suitable for electronic packaging applications can be prepared from a novel aluminum nitride powder/sintering aid mixture. The sintering aid comprises a glassy component formed from alumina, calcia and... | 06/13/1995 |
| 5419975 | Inorganic ceramic paper, its method of manufacture and articles produced therefrom An inorganic ceramic paper includes inorganic ceramic fibers and an inorganic binder system of fibers consisting essentially of silica. The binder system initially includes organic materials as well as the silica fibers, however, the organic materials are... | 05/30/1995 |
| 5395807 | Process for making silicon carbide with controlled porosity Silicon carbide sintered bodies having controlled porosity in the range of about 2 to 12 vol %. in which the pores are generally spherical and about 50 to 500 microns in diameter, are prepared from raw batches containing a polymer fugitive. Sintered bodie... | 03/07/1995 |
| 5384188 | Intumescent sheet A flexible, resilient, intumescent mat material comprising fiber, binder, and an intumescent agent which includes a mixture of unexpanded vermiculite and expandable graphite undergoes intumescence at a lower temperature, with an enhanced degree of expansi... | 01/24/1995 |
| 5354527 | Process for making silicon carbide ceramic fibers A method for forming a polycrystalline ceramic fiber which comprises blending about 5 to about 25 weight percent polymer, about 70 to about 95 weight percent silicon carbide powder and greater than 1 weight percent sintering aid; forming a fiber from the ... | 10/11/1994 |
| 5354615 | Coated SiC reinforcements and composites containing same The subject invention relates to a coated reinforcement material comprising a SiC-based reinforcement having a rare earth boride coating preferably of the general formula: Rx B1-x wherein R is selected from the group consisting of Y, Sc, ... | 10/11/1994 |
| 5324570 | Microelectronics package A microelectronics substrate assembly comprising: an advanced ceramics substrate having a top surface and a bottom surface; a first metallized distribution plane on said top surface and a second metallized distribution plane on said bottom surface; an ele... | 06/28/1994 |
| 5311399 | High power ceramic microelectronic package A microelectronic package comprising a ceramic substrate (22) having a first surface bonded to a metal heat sink (25) and a second surface (30) opposite said first surface and having at least one metallized island (32) bonded to a lead frame (26), wherein... | 05/10/1994 |
| 5298470 | Silicon carbide bodies having high toughness and fracture resistance and method of making same A sintered silicon carbide ceramic body preferably produced from a uniform mixture comprising from about 82 percent to about 99.4 percent by weight silicon carbide, from about 0.5 percent to about 10 percent by weight of a nitrogen containing aluminum com... | 03/29/1994 |
| 5296311 | Silicon carbide reinforced reaction bonded silicon carbide composite The invention provides silicon carbide fiber-reinforced, reaction-bonded silicon carbide composites suitable for high temperature applications in which the silicon carbide fiber is coated with AlN, BN or TiB2. The composites offer superior frac... | 03/22/1994 |
| 5286163 | Molten metal pump with filter A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The ... | 02/15/1994 |
| 5273821 | High strength ceramic fiber board A high strength ceramic fiber board having a green strength of at least 300 psi and a green density of less than about 22 lb/ft3 ; and having a composition comprising 65-97.5% wt. ceramic fiber, 1-10% wt. PVA fiber, 0.5-10% wt. cationic starch,... | 12/28/1993 |
| 5252361 | Protective coating for non-oxide sintered fibers generated by in situ chemical reaction A glassy coated sintered non-oxide ceramic fiber produced by an in situ oxidation chemical reaction. A process to produce a protective glassy coating on ceramic fibers by heating the non-oxide ceramic fibers in the presence of boron and atmosphere contain... | 10/12/1993 |
| 5243801 | Refractory tile for heat exchanger protection A refractory tile adapted for protective fixation to the heat exchanger in an incinerator or furnace regardless of orientation. The tile includes a transverse groove which carries a shouldered slot to be guided by and mate securely with an anchor attached... | 09/14/1993 |
| 5227105 | Process for manufacturing ceramic tubes Ceramic tubes are manufactured from a mixture that includes ceramic powder. The mixture is extruded through a die to form a tube. The tube is passed through an open-ended dryer, calciner, transition zone, sintering furnace, and cooler. Thereafter, the tub... | 07/13/1993 |
| 5215806 | Fire barrier material A fire barrier material for use in building construction comprising a sandwich structure have a first and second outer layers comprising a high temperature resistant material having corrugations therein and an intermediate layer comprising a flame retarda... | 06/01/1993 |
| 5212125 | Process for sintering aluminum nitride using organometallic compounds A process for producing a sintered AlN ceramic body by mixing an organic solution comprising a hydrocarbon solvent and an organometallic compound with AlN powder to produce a slurry, removing the solvent from the slurry to form a mixture of organometallic... | 05/18/1993 |
| 5190631 | Process for forming transparent silicon carbide films A process for forming a transparent silicon carbide film on substrates by magnetron sputtering a silicon carbide target in a partial vacuum having a partial pressure of hydrogen and argon.... | 03/02/1993 |
| 5181828 | Molten metal pump A molten metal pump includes an impeller disposed at the end of an elongate drive shaft. The drive shaft is disposed within an elongate, hollow post. The impeller and the end of the post are adapted to be immersed in molten metal. An inert gas is conveyed... | 01/26/1993 |
| 5177035 | Molten metal filter and method for making same A porous ceramic body of high structural strength and integrity is disclosed, along with the method of fabricating such, whereby a curable resin and a sinterable ceramic are mixed and then admixed to removable pore formers, then consolidated into a green ... | 01/05/1993 |
| 5171491 | Method of producing near net shape fused cast refractories A method of producing near net shape fusion cast refractories. The method includes the steps of continuously introducing refractory particles into a melting furnace, rapidly heating the particles, depositing the heated particles into a melt pool, continuo... | 12/15/1992 |
| 5165858 | Molten metal pump An impeller for a molten metal pump having a cup-shaped body comprised of a sidewall and a closed end portion that define a cavity. A plurality of shear vanes extend radially from the outer surface of the impeller, particularly from the end portion of the... | 11/24/1992 |
| 5143357 | Melting metal particles and dispersing gas with vaned impeller Metal particles are melted by mixing them with molten metal contained in a bath. A shaft-supported, rotatable impeller is immersed into the molten metal and rotated so as to establish a vortex-like flow of molten metal. Metal particles are deposited onto ... | 09/01/1992 |
| 5126047 | Molten metal filter A molten metal filter includes a refractory plate having an opening therethrough. A refractory filter element is attached to the refractory plate and projects therefrom, the exterior surfaces of the filter element generally defining a rectangular prism. T... | 06/30/1992 |
| 5092821 | Drive system for impeller shafts A drive system for impeller shafts includes a coupling that has a universal joint that is lubricated under all operating conditions. A housing is connected to the universal joint, which housing includes a hollow end portion adapted to receive the non-thre... | 03/03/1992 |
| 5088893 | Molten metal pump A molten metal pump includes an impeller disposed at the end of an elongate drive shaft. The drive shaft is disposed within an elongate, hollow post. The impeller and the end of the post are adapted to be immersed in molten metal. An inert gas is conveyed... | 02/18/1992 |
| 5078572 | Molten metal pump with filter A molten metal pump includes a filter that prevents ingestion of foreign material such as dross from molten metal within which the pump is immersed. The filter is a large structure that is secured to the base of the pump surrounding the pump's inlet. The ... | 01/07/1992 |
| 5057001 | Apparatus for making ceramic tubes Apparatus for making ceramic tubes from a mixture that includes ceramic powder. The mixture is extruded through a die to form a tube. The tube is passed through an open-ended dryer, calciner, transition zone, sintering furnace, and cooler. Thereafter, the... | 10/15/1991 |
| 5053362 | Ceramic fiber refractory moldable compositions A moldable refractory composition containing from about 42 to about 83% by weight of a liquid vehicle, such as water; from about 13 to 50% by weight of ceramic fiber; from about 0.5 to 7% by weight of an inorganic binder derived from an inorganic colloida... | 10/01/1991 |
