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Compositions: Ceramic > Ceramic Compositions > Refractory > Boride, Silicide, Nitride, Oxynitride, Carbonitride, Or Oxycarbonitride Containing > Silicon Nitride Containing (si3n4) > With Trivalent Metal Compound (e.g., Yttrium, Rare Earth, Or Aluminum Compound, Etc.) With Trivalent Metal Compound (e.g., Yttrium, Rare Earth, Or Aluminum Compound, Etc.)With Trivalent Metal Compound (e.g., Yttrium, Rare Earth, Or Aluminum Compound, Etc.) patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/07/06 - 20060276324 - Silicon nitride compositions The present invention provides silicon nitride with tungsten carbide additives in a sinterable material comprising silicon nitride and tungsten carbide, in which the silicon nitride content is a minimum of about 80% and wherein the total nitride component is about 28-40 w/w % N2, and further comprising about 1.5-3.5 w/w ... 09/07/06 - 20060199722 - Yttria sintered body, ceramic member using yttria sintered body, and manufacturing method of yttria sintered body A yttria sintered body includes yttria as a principal ingredient, and 5 to 40% by volume of silicone nitride, allowing for an enhanced corrosion resistance and mechanical strength. ... 06/15/06 - 20060128552 - Silicon nitride sintered body having high heat conductivity and silicon nitride structural element A silicon nitride sintered body exhibiting a high heat conductivity, the silicon nitride sintered body includes a rare earth element in an amount of 2 to 17.5 mass % in terms of the oxide thereof, Fe in an amount of 0.07 to 0.5 mass % in terms of the oxide ... 04/27/06 - 20060089250 - Process for manufacture of dense neodymium stabilised beta-silicon nitride - alpha-sialon composite The present invention provides a process for the manufacture of dense neodymium stabilised β-Si3N4-α-SiAlON composite, wherein a synergistic composition essentially consisting of Si3N4, Al2O3, AlN, SiO2 and Nd2O3 as starting materials is mixed in proportion to make a total of 100 mole in the mixed batch, passing the powder through ... 04/27/06 - 20060089249 - Composition useful for preparation of dense neodymium stabilised beta-silicon nitride-alpha-siaion composite The present invention consists of a synergistic mixture of Si3N4, Al2O3, AlN, SiO2 and Nd2O3. The cost effective synergistic composition is useful for the preparation of dense neodymium stabilised β-Si3N4-α-SiAlON composite of the order of >98% theoretical density, having high hardness and high fracture toughness. The dense β-Si3N4-α-SiAlON composite will ... 01/19/06 - 20060014625 - Stoichiometrically balanced silicon nitride ceramic for high performance cutting tools A silicon nitride based ceramic, that is highly effective for use as a cutting tool for the high speed machining of cast irons, that is essentially a homogeneous mixture consisting of both crystalline and whisker forms of beta silicon nitride that are interstitially bonded by a stoichiometrically balanced glass mixture ... 01/19/06 - 20060014624 - High dielectric strength monolithic si3n4 A monolithic silicon nitride material and a method of manufacturing the material. The material is disclosed in a range of composition variations all of which exhibit high dielectric strengths suitable for use in insulator applications. Moreover, the material retains its dielectric and structural integrity even at elevated temperature, such as ... ### FreshPatents.com Support |