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8168554 Particle of a molten ceramic material  
The invention relates to a molten ceramic particle, characterized in that it has the following chemical composition in wt % based on oxides and for a total of 100%: 55%
8140162 Low temperature degradation resistant yttria stabilized zirconia  
The invention is directed to an apparatus substantially eliminating destructive low-temperature, humidity-enhanced phase transformation of yttria-stabilized zirconia in general, as well as...
8138109 Zirconia-mullite refractory raw material and a plate brick  
Provided is a zirconia-mullite refractory raw material which is less likely to undergo alternation and microstructural degradation under high-temperature conditions, and low in thermal expansion...
8133831 Slip for the preparation of dental ceramics by a hot-melt inkjet printing process  
Slip for use in a hot-melt inkjet printing process which contains (A) ceramic particles, (B) wax and (C) at least one radically polymerizable monomer, and use of the slip to prepare dental...
8124554 Fused cast refractory block with high zirconia content  
The present invention provides a fused cast refractory block comprising a mean zirconia (ZrO2+HfO2) content of more than 85% as a percentage by weight based on the oxides, and with a standard...
8093168 ZrO2-Al2O3 composite ceramic material and production method therefor  
A ZrO2—Al2O3 composite ceramic material having excellent wear resistance, hardness, strength and toughness is provided. This ceramic material comprises a ZrO2 phase composed of 90 vol % or more o...
8025824 Process for producing refractory particles  
To provide a process for producing high-purity highly oxidized refractory particles easily with good productivity by treating a spent refractory containing ZrO2 and Al2O3 to reduce components other...
8017230 Ceramic powders and thermal barrier coatings made therefrom  
This invention relates to ceramic powders comprising a zirconia-based component, e.g., yttria-stabilized zirconia, and an (alumina+silica)-based component, e.g., mullite. The ceramic powders are...
8012897 Alumina ceramic products  
The invention provides a sintered, yttria stabilized zirconium-toughened alumina ceramic product comprising about 80-94 w/w % Al2O3, about 5-19 w/w % ZrO2 and about 0.18-0.72 w/w % Y2O.
8002885 Dental restorations using nanocrystalline materials  
Dental articles are produced using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders...
7943541 Sintered refractory product exhibiting enhanced thermal shock resistance  
The invention concerns a sintered refractory product having the following average chemical composition, in weight percentages based on oxides: 20%
7927879 Zirconium crucible for melting analytical sample, method of preparing analytical sample and method of analysis  
Proposed is a zirconium crucible used for melting an analytical sample in the pretreatment of the analytical sample, wherein the purity of the zirconium crucible is 99.99 wt % or higher. In light...
7928028 ZrO2-Al2O3 composite ceramic material and production method therefor  
A ZrO2—Al2O3 composite ceramic material having excellent wear resistance, hardness, strength and toughness is provided. This ceramic material comprises a ZrO2 phase composed of 90 vol % or more o...
7914755 Method of preparing ceramic powders using chelate precursors  
Wet-chemical methods involving the use of water-soluble hydrolytically stable metal-ion chelate precursors and the use of a nonmetal-ion-containing strong base can be used in a coprecipitation...
7871950 Colored zirconia-based sintered body and manufacturing method thereof and decorative member  
This invention provides a colored zirconia-based sintered body, mainly composed of zirconia containing a stabilizer, which contains alumina and nickel spinel, and has a novel color tone, and a...
7842633 High-resistance high-zirconia cast refractory material  
A high-zirconia cast refractory material which contains 85-95 wt % of ZrO2, 4-12 wt % of SiO2, 0.1 to less than 0.8 wt % of Al2O3, less than 0.04 wt % of Na2O, 0.01-0.15 wt % of K2O, 0.1-1.5 wt %...
7820299 Method to produce an element subject to wear, and element subject to wear thus obtained  
Method to produce an element (10) subject to wear, such as a mechanical member, an abrasion or crushing tool or suchlike, comprising a metal matrix (14) and at least a core (12) of ceramic...
7820577 Biomedical member and method for producing the same  
A biomedical member having high strength, high toughness and high hardness and an artificial joint that uses the same are provided. In addition, a biomedical member that exhibits high wear...
7806694 Methods of manufacturing dental restorations using nanocrystalline materials  
Dental articles are produced using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders...
7799717 Spark plug having a ceramic insulator with improved high temperature electrical properties  
A spark plug which includes a center electrode metal shell and an insulator disposed therebetween utilizes for the insulator or ceramic with improved high temperature electrical properties which...
7713897 Ceramic materials for 4-way and NOx adsorber and method for making same  
Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d...
7704315 Highly-filled, aqueous metal oxide dispersion  
Aqueous dispersion containing a metal oxide powder with a fine fraction and a coarse fraction, in which—the metal oxide powder is silicon dioxide, aluminum oxide, titanium dioxide, zirconium d...
7696117 Method and apparatus which reduce the erosion rate of surfaces exposed to halogen-containing plasmas  
A ceramic article which is resistant to erosion by halogen-containing plasmas used in semiconductor processing. The ceramic article includes ceramic which is multi-phased, typically including two...
7687422 High resistivity refractory with a high zirconia content  
A novel fused and cast refractory product with a high zirconia content having improved electrical resistivity includes, as a percentage by weight relative to the oxides and for a total of more than...
7642211 Reduced sweating AZS product  
An AZS type fused cast refractory product presenting the following chemical composition, as a percentage by weight: ZrO2: 15.5% to 22%; SiO2: 10.5% to 15%; Na2O+K2O+Li2O: 1.0% to 2.5%; impurities:...
7642210 Zirconia porous body and manufacturing method thereof  
A zirconia porous body with excellent stability of heat resistance is manufactured. This relates to a zirconia porous body having peaks at pore diameters of 8 to 20 nm and 30 to 100 nm in a pore...
7598195 Fusion-cast refractory with high electrical resistivity  
A fusion-cast refractory is provided. The refractory comprises 0.8% to 2.5% Al2O3, 4.0% to 10.0% SiO2, 86% to 95% ZrO2, 0.1% to 1.2% B2O3, up to 0.04% Na2O, up to 0.4% CaO, up to 0.1% Fe2O3 and up...
7566674 Dental ceramics and method for the manufacture thereof  
In dental ceramics containing zirconium dioxide and silicon-dioxide with a Zr/Si ratio of between 0.5 and 1.0, 1 to 12 wt % of aluminum oxide and up to 2 wt % of an alkali- or earth alkali metal...
7553789 Powder for black zirconia sintered body, production method thereof, and sintered body thereof  
A zirconia-containing powder including 2 to 6 weight % of a pigment which has a spinel structure represented by the chemical formula (Co1-xZnx)(Fe1-yAly)2O4(0≦x≦0.5, 0
7519419 Material and method of forming yttria-stabilized zirconia to minimize low-temperature degradation  
The invention is directed to a material and a method of substantially eliminating destructive low-temperature, humidity-enhanced phase transformation of yttria-stabilized zirconia in general, as...
7494539 Production method of dental ceramics material  
To make a color tone similar to that of dentin of a tooth at a low cost without discoloration when baking, a dental ceramics material is produced by: mixing a pink coloring agent and a yellow...
7414002 Aluminum oxide-titanium nitride sintered body, manufacturing method thereof, and magnetic head substrate, ultrasonic motor and dynamic pressure bearing using the same  
The present invention provides an aluminum oxide-titanium nitride sintered body having good resistance to electrostatic damage and small variation in volume resistivity. The aluminum oxide-titanium...
7405173 Alumina-titanium oxide-zirconia fused grain  
An alumina-titanium oxide-zirconia fused grain presenting, for a total of 100%, the following chemical composition: Al2O3: more than 10% and less than 50%;TiO2: more than 10% and less than...
7399722 Alumina/zirconia ceramics and method of producing the same  
Composite ceramics having a high strength, a high toughness and an excellent abrasion resistance, and a method of producing the same. The composite ceramics comprises 10 to 30 mass % of a zirconia...
7396792 Transparent polycrystalline aluminium oxide  
The present invention relates to highly dense translucent and transparent aluminium oxide components for applications, e.g. in the lighting industry, where a fine crystal size has to be obtained...
7396789 Gasifier reactor internal coating  
A gasifier internal refractory coating has at least one region of a sintered material containing at least 45% by weight of chromium oxide (Cr2O3) and at least 1% by weight of zirconium oxide, at...
7335617 Refractory product for a checker work element of a glass furnace regenerator  
The invention relates to a melted and cast refractory product which is intended, for example, for a checker work element of a glass furnace regenerator, having the following average chemical weight...
7291574 Zirconia sintered body and a method for producing the same  
A zirconia sintered body having high strength and high toughness is provided, and a method for producing the same is also provided. The zirconia sintered body comprising tetragonal zirconia,...
7247588 Zirconia toughened alumina ESD safe ceramic composition, component, and methods for making same  
ESD safe ceramic component is provided which includes a sintered composition which is formed of a base material and a resistivity modifier. The base material includes a primary component and a...
7176153 Refractory system for glass melting furnaces  
A refractory system for glass melting furnaces includes alumina, zirconia, and silica mixed with a silica binder. The refractory may be formed as refractory blocks or directly onto the wear portion...
7169723 Ceramic with improved high temperature electrical properties for use as a spark plug insulator  
A ceramic includes alumina in an amount between about 90 and about 99% by weight, a zirconium containing compound in an amount between about 0 and about 1% by weight, and an oxide mixture in an...
7129192 Molten and cast refractory product with high zirconia content  
The invention concerns a refractory product comprising more than 85% of zirconia (ZrO2), characterized in that it comprises in wt. % with respect to oxides: ZrO2>92%, SiO2: 2 to 8%, Na2O: 0.12 to...
7122064 AI2O3 and ZrO2 based abrasive grain, method for the production and use thereof  
An Al2O3 and ZrO2 based abrasive grain containing titanium compounds in a reduced form, especially in the form of oxides and/or suboxides and/or carbides and/or oxycarbides and/or oxycarbonitrides...
7094719 Light-colored ESD safe ceramics  
Aspects of the present invention may be found in an electrostatic dissipative ceramic component having a stabilized zirconia base, a surface resistivity between 1×105 and 1×1012 ohms per square a...
7074733 Unwrought refractory composition, in particular for producing glass furnace hearths  
An unwrought refractory composition, in particular for producing glass furnace hearths, includes a base mixture comprising in wt. %: 1 to 6% of a hydraulic cement, and 94 to 99% of particles of at...
7067446 Material demonstrating negative or low thermal expansion coefficient and method for manufacture thereof  
A material having a negative or low thermal expansion coefficient and composed substantially of a single crystal system is provided. The material is an oxide represented by the chemical formula...
7056851 ZrO2-Al2O3 composite ceramic material  
A ZrO2—Al2O3 composite ceramic material is provided, which is excellent in mechanical strength and toughness, and has the capability of preventing low temperature degradation. This ceramic m...
7012036 ZrO2-Al2O3 composite ceramic material and production method thereof  
A ZrO2—Al2O3 composite ceramic material having high mechanical strength and toughness as well as excellent wear resistance and hardness is provided. This ceramic material includes a first phase o...
6982233 Fire refractory ceramic molded piece, use thereof and composition for production of molded pieces  
The invention relates to a fired refractory ceramic molded piece with a spinel matrix based on (Mg)2+ (Al, Cr)23+O4, in which coarser particles based on chromium corundum and/or corundum and...
6958303 Electro-static dissipative ceramic products and methods  
The invention provides partially stabilised zirconia and alumina based electro-static dissipative or ESD ceramic compositions. The proposed ceramic compositions include specific amounts of dopants...
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