| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 501152000 | Yttrium, lanthanide, actinide, or transactinide containing (i.e., atomic numbers 39 or 57-71 or 89+) | 36 |
| 20080207432 | Y2O3 Sintered Body Corrosion Resistant Member and Method for Producing Same and Member for Semiconductor/Liquid Crystal Producing Apparatus - A corrosion resistant member made of the Y | 08-28-2008 |
| 20080214383 | Cubic Boron Nitride Sintered Body - The present invention provides a cubic boron nitride sintered body, which achieves both of superior chipping resistance and wear resistance. | 09-04-2008 |
| 20080261800 | EROSION RESISTANCE ENHANCED QUARTZ USED IN PLASMA ETCH CHAMBER - A method of fabricating doped quartz component is provided herein. In one embodiment, the doped quartz component is a yttrium doped quartz ring configured to support a substrate. In another embodiment, the doped quartz component is a yttrium and aluminum doped cover ring. In yet another embodiment, the doped quartz component is a yttrium, aluminum and nitrogen containing cover ring. | 10-23-2008 |
| 20090011924 | SINTERED POLYCRYSTALLINE TERBIUM ALUMINUM GARNET AND USE THEREOF IN MAGNETO-OPTICAL DEVICES - A composition is provided that includes a plurality of calcined particles of terbium aluminum oxide having a mean particle domain size of between 30 and 600 nanometers. A translucent article having a surface includes polycrystalline terbium aluminum garnet having a mean grain size from 1 to 10 microns and light scattering inclusions of aluminum-rich oxide and/or terbium-rich oxide that are present at less than 2 surface area percent of the surface. A process for forming such an article involves sintering the above provided composition at a temperature between 1500° C. and 1700° C. to yield a sintered article. The article has improved translucency and even transparency as sintering is performed under vacuum at a temperature between 1610° C. and 1680° C. Hot isostatic pressing alone or in combination with article polishing also improves article translucency. | 01-08-2009 |
| 20090029844 | Rare-earth oxide sintered body and manufacturing method - A rare-earth oxide sintered body, or corrosion-resistant material, having low sintering temperature and high density is prepared by adding a boron compound at a ratio of 0.06 mol % or more and less than 25 mol % when converted into boron oxide (B | 01-29-2009 |
| 20090075810 | TRANSLUCENT CERAMIC, OPTICAL COMPONENT, AND OPTICAL DEVICE - Provided is a translucent ceramic which has a high Abbe number, is advantageous in aberration correction, and can be easily produced. The translucent ceramic contains, as a main component, a garnet type compound represented by the General Formula: Y | 03-19-2009 |
| 20090105065 | LIGHT EMITTING DEVICE WITH A CERAMIC GARNET MATERIAL - The invention relates to a light emitting device, especially a LED comprising a ceramic garnet material. | 04-23-2009 |
| 20090197758 | HAFNIA-MODIFIED RARE-EARTH METAL-BASED CERAMIC BODIES AND CASTING PROCESSES PERFORMED THEREWITH - Compositions suitable for use as cores and shell molds for casting of reactive metal alloys, and casting processes for producing components from such alloys. The composition contains a sintered particulate material of hafnia and at least one additional metal oxide in amounts to yield a ceramic composition containing up to 70 molar percent of hafnia, wherein the additional metal oxide is a rare-earth oxide, the sintered particulate material contains first and second phases, the first phase is the rare-earth oxide and hafnia in solid solution, the second phase is a compound of the rare-earth oxide and hafnia, and the second phase is less reactive with the reactive metal alloy than the first phase. | 08-06-2009 |
| 20090298672 | SINGLE PHASE YTTRIUM PHOSPHATE HAVING THE XENOTIME CRYSTAL STRUCTURE AND METHOD FOR ITS SYNTHESIS - Methods for producing substantially single phase yttrium phosphate which exhibits the xenotime crystal structure are disclosed. The methods can be practiced without the use of high temperatures (e.g., the methods can be practiced at temperatures less than 1000° C.). The resulting yttrium phosphate can be in the form of particles which comprise interwoven strands of crystals of yttrium phosphate and/or nanoparticles prepared from such particles. | 12-03-2009 |
| 20100029465 | WETTING RESISTANT MATERIALS AND ARTICLES MADE THEREWITH - Ceramic materials with relatively high resistance to wetting by various liquids, such as water, are presented, along with articles made with these materials, methods for making these articles and materials, and methods for protecting articles using coatings made from these materials. One embodiment is an article comprising a material that is transparent to electromagnetic radiation of at least one type selected from the group consisting of ultraviolet radiation, visible light, and infrared radiation. The material comprises a primary oxide and a secondary oxide. The primary oxide comprises cerium and hafnium. The secondary oxide comprises a secondary oxide cation selected from the group consisting of the rare earth elements, yttrium, and scandium. Another embodiment is an article comprising a material that is transparent to electromagnetic radiation of at least one type selected from the group consisting of ultraviolet radiation, visible light, and infrared radiation. The material comprises a primary oxide and a secondary oxide. The primary oxide comprises cerium or hafnium. The secondary oxide comprises (i) praseodymium or ytterbium, and (ii) another cation selected from the group consisting of the rare earth elements, yttrium, and scandium. | 02-04-2010 |
| 20100081561 | OPTICAL MATERIAL AND OPTICAL ELEMENT - Provided is an optical element, which is formed by vacuum-sintering a molded body of ceramic particles having an average particle diameter of 1 μm or more and 10 μm or less and including Ln | 04-01-2010 |
| 20100105539 | COMPOUND TRANSPARENT CERAMICS AND METHODS OF PREPARATION THEREOF - According to one embodiment, a method for forming a composite transparent ceramic preform includes forming a first suspension of oxide particles in a first solvent which includes a first dispersant but does not include a gelling agent, adding the first suspension to a first mold of a desired shape, and uniformly curing the first suspension in the first mold until stable. The method also includes forming a second suspension of oxide particles in a second solvent which includes a second dispersant but does not include a gelling agent, adding the second suspension to the stable first suspension in a second mold of a desired shape encompassing the first suspension and the second suspension, and uniformly curing the second suspension in the second mold until stable. Other methods for forming a composite transparent ceramic preform are also described according to several other embodiments. Structures are also disclosed. | 04-29-2010 |
| 20100160144 | Yb:Y2O3 Ceramic Powders - A high purity nano-sized Yb | 06-24-2010 |
| 20100167909 | HOT AXIAL PRESSING METHOD - A hot axial pressing method for sintering a ceramic powder, particularly doped Gd2O2S, comprise the step of placing a first porous body ( | 07-01-2010 |
| 20100173768 | METHOD OF FORMING ALUMINUM OXYNITRIDE MATERIAL AND BODIES FORMED BY SUCH METHODS - Methods of forming aluminum oxynitride (AlON) materials include sintering green bodies comprising aluminum orthophosphate or another sacrificial material therein. Such green bodies may comprise aluminum, oxygen, and nitrogen in addition to the aluminum orthophosphate. For example, the green bodies may include a mixture of aluminum oxide, aluminum nitride, and aluminum orthophosphate or another sacrificial material. Additional methods of forming aluminum oxynitride (AlON) materials include sintering a green body including a sacrificial material therein, using the sacrificial material to form pores in the green body during sintering, and infiltrating the pores formed in the green body with a liquid infiltrant during sintering. Bodies are formed using such methods. | 07-08-2010 |
| 20100273639 | CERAMIC MATERIAL FOR LEDS WITH REDUCED SCATTERING AND METHOD OF MAKING THE SAME - The invention relates to a ceramic luminescent material for LEDs with reduced scattering made by a uniaxial hot-pressing step. | 10-28-2010 |
| 20100331170 | ALKALI METAL SUPER IONIC CONDUCTING CERAMIC - Metal ion conducting ceramic materials are disclosed having characteristics of high ion conductivity for certain alkali and monovalent metal ions at low temperatures, high selectivity for the metal ions, good current efficiency and stability in water and corrosive media under static and electrochemical conditions. The metal ion conducting ceramic materials are fabricated to be deficient in the metal ion. One general formulation of the metal ion conducting ceramic materials is Me | 12-30-2010 |
| 20110034319 | Sintering Aid Coated YAG Powders and Agglomerates and Methods for Making - Particles including a YAG core and a coating of sintering aid deposited thereon. The particles and agglomerates thereof maybe formed as a powder. The coated YAG-containing particles are well-suited to production of polycrystalline YAG-containing ceramics. The coated YAG-containing particles may be fabricated using a novel fabrication method which avoids the need for formation of a homogeneous powder mixture of YAG and sintering aid. In the method, a solution including a sintering aid or sintering aid precursor is prepared and mixed with YAG-containing particles to form a mixture. The mixture may be sprayed into a drying column and dried to produce coated particles. Alternatively, the YAG particles and sintering aid or sintering aid precursor solution may be separately introduced to the drying column and dried to form coated YAG-containing particles. | 02-10-2011 |
| 20110053760 | WATER-BASED METHODS FOR PRODUCING HIGH GREEN DENSITY AND TRANSPARENT ALUMINUM OXYNITRIDE (ALON) - The present invention provides a water-based method for producing Aluminum oxynitride (AION) green bodies characterized by a density of at least 99% as measured according to ASTM C20-92 and/or at least 60% as measured by green density measurements The method comprises steps selected from (a) ball-milling Alumina powder and deflocculant in water for a period of time t, said t is between about 10 hours and about 24 hours, (b) homogeneously dispersing AIN in said ball-milled product for a period of time t | 03-03-2011 |
| 20110059839 | TRANSLUCENT POLYCRYSTALLINE SINTERED BODY, METHOD FOR PRODUCING THE SAME, AND ARC TUBE FOR HIGH-INTENSITY DISCHARGE LAMP - A translucent polycrystalline sintered body is mainly composed of an alumina, is suitable for the manufacture of an arc tube for a high-intensity discharge lamp, and has an average grain diameter of 35 to 70 μm, preferably 50 to 60 μm. In a case where the sintered body is in a 0.5-mm-thick flat plate shape, the in-line transmittance of the sintered body is 30% or more, preferably 50% or more. In this case, the ratio between maximum and minimum in-line transmittance values is 2:1 to 1:1 in the visible region of 360 to 830 nm. The bending strength of the sintered body is 250 MPa or more, preferably 300 MPa or more. | 03-10-2011 |
| 20110086754 | WETTING RESISTANT MATERIALS AND ARTICLES MADE THEREWITH - Ceramic materials with relatively high resistance to wetting by various liquids, such as water, are presented, along with articles made with these materials, methods for making these articles and materials, and methods for protecting articles using coatings made from these materials. One embodiment is an article comprising a material that is transparent to electromagnetic radiation of at least one type selected from the group consisting of ultraviolet radiation, visible light, and infrared radiation. The material comprises a primary oxide and a secondary oxide. The primary oxide comprises cerium or hafnium. The secondary oxide comprises (i) praseodymium or ytterbium, and (ii) another cation selected from the group consisting of the rare earth elements, yttrium, and scandium. | 04-14-2011 |
| 20110319255 | VARISTOR CERAMIC, MULTILAYER COMPONENT COMPRISING THE VARISTOR CERAMIC, AND PRODUCTION METHOD FOR THE VARISTOR CERAMIC - A varistor ceramic includes the following materials: Zn as the main component, Pr in a proportion of 0.1 to 3 atom %, and a metal M selected from Y, Ho, Er, Yb and Lu in a proportion of 0.1 to 5 atom %. | 12-29-2011 |
| 20120100982 | CORDIERITE-BASED SINTERED BODY - The present invention is intended to drastically improve a precision polishing characteristic of a cordierite-based sintered body which has low thermal expansibility, high dimensional long-term stability and high rigidity (high elastic modulus). The cordierite-based sintered body comprises cordierite as primary components, and one or more selected from the group consisting of La, Ce, Sm, Gd, Dy, Er, Yb and Y in an oxide-equivalent amount of 1 to 8 mass %, without any crystal phase other than a cordierite crystal phase. A mass ratio of primary components of the cordierite satisfies the following relations: 3.85≦SiO | 04-26-2012 |
| 20120238438 | DIELECTRIC CERAMIC COMPOSITION - A dielectric ceramic composition comprising a main component and at least one or more subcomponent elements has a dielectric particle and a grain boundary. The dielectric particle has a main component phase substantially composed of the main component, and a diffusive phase around the main component phase where at least one selected from the subcomponent elements is diffused, a local minimal value of Cs is located at an outside edge side with respect to a position of the local maximum value of Cs, and Cs is increased from a position of the local minimal value of Cs toward the outside edge, when the dielectric particle is cut on an arbitrary cutting plane including the main component phase, and Cs is defined as a concentration of one or more elements selected from the subcomponent elements in an arbitrary position in the dielectric particle. | 09-20-2012 |
| 20130225392 | CORDIERITE CERAMIC, AND MEMBER FOR SEMICONDUCTOR MANUFACTURING DEVICES WHICH COMPRISES SAME - A cordierite ceramic contains a main component having a composition including Mg of 12.6% by mass or more and 14.0% by mass or less in terms of an oxide, Al of 33.4% by mass or more and 34.4% by mass or less in terms of an oxide and Si of 52.0% by mass or more and 53.6% by mass or less in terms of an oxide, an accessory component having any one of Y, Yb, Er, and Ce in an amount of 4.5% by mass or more and 15.0% by mass or less in terms of an oxide based on 100% by mass of the main component, wherein cordierite, disilicate and spinel are present as crystal phases, a coefficient of thermal expansion of −120 ppb/° C. to +120 ppb/° C., a four-point bending strength of 170 MPa or more, a low thermal expansion performance and an excellent mechanical strength. | 08-29-2013 |
| 20130337993 | METHOD FOR PREPARING POLYCRYSTALLINE ALUMINUM OXYNITRIDE HAVING ENHANCED TRANSPARENCY - Disclosed is a method for preparing polycrystalline aluminum oxynitride having enhanced transparency, and preparing polycrystalline aluminum oxynitride by sintering a powder mixture of Al | 12-19-2013 |
| 20140011662 | SINGLE PHASE YTTRIUM PHOSPHATE HAVING THE XENOTIME CRYSTAL STRUCTURE AND METHOD FOR ITS SYNTHESIS - Methods for producing substantially single phase yttrium phosphate which exhibits the xenotime crystal structure are disclosed. The methods can be practiced without the use of high temperatures (e.g., the methods can be practiced at temperatures less than 1000° C.). The resulting yttrium phosphate can be in the form of particles which comprise interwoven strands of crystals of yttrium phosphate and/or nanoparticles prepared from such particles. | 01-09-2014 |
| 20140066287 | Low Cost Manufacture of High Reflectivity Aluminum Nitride Substrates - A sintered aluminum nitride substrate having a thermal conductivity of about 60 W/m-K to about 150 W/m-K, a flexural strength of about 200 MPa to about 325 MPa, a volume resistivity of greater than 10 | 03-06-2014 |
| 20140106957 | SINTERING AIDS FOR LANTHANIDE CERAMICS - This disclosure relates to a method of densifying a lanthanide chromite ceramic or a mixture containing a lanthanide chromite ceramic. The method comprises mixing one or more lanthanide chromite ceramics with one or more sintering aids, and sintering the mixture. The one or more lanthanide chromite ceramics are represented by the formula (Ln | 04-17-2014 |
| 20140155249 | METHOD FOR MAKING AMORPHOUS PARTICLES USING A UNIFORM MELT-STATE IN A MICROWAVE GENERATED PLASMA TORCH - Feed material comprising uniform solution precursor droplets is processed in a uniform melt state using microwave generated plasma. The plasma torch employed is capable of generating laminar gas flows and providing a uniform temperature profile within the plasma. Plasma exhaust products are quenched at high rates to yield amorphous products. Products of this process include spherical, highly porous and amorphous oxide ceramic particles such as magnesia-yttria (MgO—Y | 06-05-2014 |
| 20140194272 | METHOD OF TREATING A PRECERAMIC MATERIAL - A method of treating a preceramic material includes providing a preceramic polycarbosilane or polycarbosiloxane material that includes a moiety Si—O—M, where Si is silicon, O is oxygen and M is at least one metal, and thermally converting the preceramic polycarbosilane or polycarbosiloxane that includes the moiety Si—O—M material into a ceramic material. | 07-10-2014 |
| 20140200131 | Si3N4 INSULATOR MATERIAL FOR CORONA DISCHARGE IGNITER SYSTEMS - A silicon nitride material is disclosed which has properties beneficial for efficient operation of a corona discharge igniter system in an internal combustion gas engine. | 07-17-2014 |
| 20140364299 | Transparent Polycrystalline Ceramic Material - A high performance transparent polycrystalline ceramic material is provided. The transparent polycrystalline ceramic material has a nitrogen-containing isotropic lattice structure and having 80% optical transmission at a wavelength between 3.86 and 4.30 microns through said material at 11 mm of thickness. | 12-11-2014 |
| 20150126355 | METHOD FOR MAKING AMORPHOUS PARTICLES USING A UNIFORM MELT-STATE IN A MICROWAVE GENERATED PLASMA TORCH - Feed material comprising uniform solution precursor droplets is processed in a uniform melt state using microwave generated plasma. The plasma torch employed is capable of generating laminar gas flows and providing a uniform temperature profile within the plasma. Plasma exhaust products are quenched at high rates to yield amorphous products. Products of this process include spherical, highly porous and amorphous oxide ceramic particles such as magnesia-yttria (MgO—Y | 05-07-2015 |
| 20150299045 | POROUS MULLITE BODIES HAVING IMPROVED THERMAL STABILITY - A porous ceramic composition having improved thermal stability is comprised of ceramic grains bonded together by grain boundary phase comprised of silica, yttrium and oxygen wherein the amount of alkali metals, alkaline earth metals and other transition metals not including rare earth metals is at most 2% by weight of the grain boundary phase. | 10-22-2015 |
| 20160039720 | METHOD OF TREATING A PRECERAMIC MATERIAL - A method of treating a preceramic material includes providing a preceramic polycarbosilane or polycarbosiloxane material that includes a moiety Si—O—M, where Si is silicon, O is oxygen and M is at least one metal that includes at least one transition metal, and thermally converting the preceramic polycarbosilane or polycarbosiloxane that includes the moiety Si—O—M material into a ceramic material. | 02-11-2016 |
