Abstract: There is disclosed a piezoelectric ceramic having the composition: a[PbTiO3]-b[SrTiO3]-c[BiFeO3]-d[(KxBi1-x)TiO3]; wherein 0.4<x<0.6; 0.1<a<0.4; 0.01<b?0.2; c?0.05; d?0.01; and a+b+c+d=1 optionally comprising an A- or B-site metal dopant in an amount of up to 2 at. %.

Abstract: A method of manufacturing a chamber component for a processing chamber comprises forming a green body using a Y2O3—ZrO2 powder consisting essentially of 55-65 mol % Y2O3 and 35-45 mol % ZrO2; and sintering the green body to produce a sintered ceramic body consisting essentially of one or more phase of Y2O3—ZrO2, the sintered ceramic body consisting essentially of 55-65 mol % Y2O3 and 35-45 mol % ZrO2.

Abstract: The disclosure discloses an electronic cigarette atomizer and an electronic cigarette, including an outer casing, wherein the outer casing is provided inside with an atomization cavity, a gas outlet is provided at a top end of the atomization cavity, a gas inlet is provided at a bottom end of the atomization cavity, the atomization cavity is provided inside with an atomization assembly, and the atomization assembly includes an oil guiding cotton swab, an electric heating wire wound around outer periphery of the oil guiding cotton swab, and an oil guiding cotton cloth layer covering the top of the oil guiding cotton swab.

Abstract: A novel composite oxide semiconductor which can be used in a transistor including an oxide semiconductor film is provided. In the composite oxide semiconductor, a first region and a second region are mixed. The first region includes a plurality of first clusters containing In and oxygen as main components. The second region includes a plurality of second clusters containing Zn and oxygen as main components. The plurality of first clusters have portions connected to each other. The plurality of second clusters have portions connected to each other.

Abstract: A preparation method of a SiC porous ceramic material and porous ceramic material manufactured by using the method, comprising: mixing a SiC aggregate, a sintering aid (zirconium oxide), a pore-forming agent (activated carbon) and a polymer binder with a reinforcing agent (SiC whiskers) according to a certain proportion, and obtaining a porous ceramic material via forming, drying and high-temperature sintering. The porous ceramic material has a high strength, a high porosity, a good thermal shock resistance and a low sintering temperature, and can server as a filter material of high-temperature flue gas and a carrier material in vehicle exhaust purification.

Abstract: A composite material having a first phase includes an aluminum oxide proportion of at least 65% by volume and a second phase comprising a zirconium proportion of 10 to 35% by volume. The zirconium is present as zirconium oxide. The aluminum oxide is a ceramic matrix and the zirconium oxide is dispersed therein. From 90 to 99% of the zirconium oxide is present in the tetragonal phase. A chemical stabilizer for stabilizing the tetragonal phase of the zirconium oxide is also present. The total content of chemical stabilizer is <0.2 mol % relative to the zirconium oxide content.

Abstract: A composite material consisting of aluminium oxide as a ceramic matrix and zirconium oxide dispersed therein. A method for the production thereof, components containing the composite and methods of using the same are also provided.

Abstract: Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode and a nonaqueous electrolyte, wherein the positive electrode has a positive active material containing a lithium transition metal composite oxide having an ?-NaFeO2-type crystal structure and represented by the composition formula: Li1+?Me1??O2 (wherein Me is a transition metal element including Co, Ni and Mn; and ?>0), and the negative electrode has a negative active material which contains a carbon material that is a mixture of graphite and amorphous carbon and in which the ratio of the amorphous carbon contained in the carbon material is 5 to 60% by mass.

Abstract: An additive that contains an emulsion binder resin substantially free of non-emulsion binder resin, such as an emulsion acrylic resin, is mixed into a ceramic raw material powder containing, as its main constituent, a perovskite-type compound to form a ceramic slurry. Then, an orientational ceramic is prepared by subjecting the slurry to a forming process while simultaneously or sequentially applying a magnetic field and drying the slurry. An orientational ceramic, even formed from a substance which has small magnetic anisotropy, such as PZT, is obtained.

Abstract: A method for manufacturing high-purity alumina material is disclosed, which includes the steps of: reacting aluminum metal with a mixture of organic base and water to form aluminum hydroxide suspension; removing water by filtration to form aluminum hydroxide slurry, and drying/baking the slurry to form aluminum oxide powders. The method is amenable to mass production of high-purity aluminum oxide containing total silica and non-aluminum metal impurities less than 0.005% and having a bulk density higher than 3.0 g/cc. In addition, the invention also provides high-purity aluminum oxide prepared by using the method disclosed and bulk products prepared therefrom.

Abstract: An electronic apparatus, a light-transmissive cover member, and an electronic device are disclosed. The electronic apparatus may include an image display device that includes an image display surface and a light-transmissive cover member. The light-transmissive cover member is arranged such that at least part of the light-transmissive cover member faces the image display surface. The light-transmissive cover member is a single crystal that contains alumina (Al2O3) as a main component. Due to the light-transmissive cover member, the transmittance of light having a wavelength of 260 nm is less than 92% of the transmittance of light having a wavelength of approximately 550 nm.

Abstract: A cBN tool that exhibits: excellent chipping resistance and wear resistance; and excellent cutting performance, for a long term use even in intermittent cutting work on high hardened steel is provided. The cutting tool includes a cutting tool body that is a cubic boron nitride-based material containing cubic boron nitride particles as a hard phase component. In the cutting tool, the cubic boron nitride particles includes an Al2O3 layer with an average layer thickness of 1.0-10 nm on a surface of the cubic boron nitride particles, a rift with an average rift formation ratio of 0.02-0.20 being formed in the Al2O3 layer, and the cubic boron nitride-based sintered material includes a binding phase containing at least one selected from a group consisting of: titanium nitride; titanium carbide; titanium carbonitride; titanium boride; aluminum nitride; aluminum oxide; inevitable products; and mutual solid solution thereof, around the cubic boron nitride particles.

Abstract: A solid sintered ceramic article may include a solid solution comprising Y2O3 at a concentration of approximately 30 molar % to approximately 60 molar %, Er2O3 at a concentration of approximately 20 molar % to approximately 60 molar %, and at least one of ZrO2, Gd2O3 or SiO2 at a concentration of approximately 0 molar % to approximately 30 molar %. Alternatively, the solid sintered ceramic article a solid solution comprising 40-100 mol % of Y2O3, 0-50 mol % of ZrO2, and 0-40 mol % of Al2O3.

Abstract: A composition may be suitable for firing to obtain a ceramic material therefrom. A green body or ceramic material may be formed from the composition. Ballistic armour may be formed from the composition or may include the ceramic material.

Abstract: Disclosed is a ceramic sintered shaped body containing Y2O3-stabilized zirconia with a sintered density of at least 99% of the theoretical sintered density and having a mean grain size of <180 nm. The zirconia fraction of the sintered shaped body comprises tetragonal and cubic phases. Also disclosed is a process for the production of a ceramic sintered shaped body containing Y2O3-stabilized zirconia, which process comprises dispersion of a submicron powder and comminution of the dispersed submicron powder by means of grinding media having a diameter of less than or equal to 100 ?m to a particle size d95 of <0.42 ?m; shaping of the dispersion to form a body, and sintering of the body to form the sintered shaped body.

Abstract: Disclosed is an alumina-coated spinel-silicon carbide refractory composition with good resistance to coal slag penetration and a method for manufacturing the same. The refractory composition refractory composition comprising 3 to 10 parts by weight of fine alpha alumina powder with respect to the weight of the refractory mixture, wherein the mixture is prepared by mixing alumina-coated spinel aggregates and silicon carbide in a ratio of 10:90 to 40:60 wt %, a dispersant, and an alumina sol as a binder.

Abstract: The present disclosure relates to hexagonal boron nitride nanosheet/ceramic nanocomposite powder including surface-modified hexagonal boron nitride nanosheets which serve as a reinforcing agent for the matrix ceramic, and a method for producing the same, and a hexagonal boron nitride nanosheet/ceramic nanocomposite material including the hexagonal boron nitride nanosheet/ceramic nanocomposite powder and a method for producing the same.

Abstract: A sodium niobate powder includes sodium niobate particles having a shape of a cuboid and having a side average length of 0.1 ?m or more and 100 ?m or less, wherein at least one face of each of the sodium niobate particles is a (100) plane in the pseudocubic notation and a moisture content of the sodium niobate powder is 0.15 mass % or less. A method for producing a ceramic using the sodium niobate powder is provided. A method for producing a sodium niobate powder includes a step of holding an aqueous alkali dispersion liquid containing a niobium component and a sodium component at a pressure exceeding 0.1 MPa, a step of isolating a solid matter from the aqueous dispersion liquid after the holding, and a step of heat treating the solid matter at 500° C. to 700° C.

Abstract: The present invention provides a medical ceramic material with a color other than black or white, especially blue, with which it is possible to secure sufficient durability and to maintain a good appearance by sufficiently suppressing a color difference between before and after the irradiation of gamma-rays for sterilization. The medical ceramic material is formed using a composite material containing alumina and zirconia. The composite material contains cobalt oxide. The content of cobalt oxide is set to be 0.2 wt % to 1.0 wt % with respect to 100 wt % of the composite material excluding cobalt oxide.

Abstract: The invention relates to a composite ceramic material which comprises: (a) a first phase based on zirconia containing CeO2 as stabilizer, and (b) a second phase based on an aluminate. The invention also relates to a ceramic powder composition, processes for the preparation of the composite ceramic material and the ceramic powder composition as well as uses thereof.

Abstract: The present invention provides a method for manufacturing a calcined gypsum wherein the mixing water amount is reduced and the setting time does not increase. As a raw gypsum is compounded with a carboxylic acid-type material and calcined, a calcined gypsum can be manufactured wherein the mixing water amount is small and the setting time does not increase. Furthermore, a regular gypsum board can be manufactured without reducing the productivity of the gypsum board even if a large quantity of recycled gypsum causing increase of the mixing water amount is used as a raw gypsum, because the mixing water amount is small and the setting time does not increase for the calcined gypsum manufactured as described above.

Abstract: The present invention relates to a lead-free, non-toxic and arc resistant composite material having a thermosetting polymer, at least one heavy particulate filler, at least one light particulate filler and, optionally, at least one arc resistant filler. The composite material may be utilized in manufacturing articles used in radiation shielding and other applications where arc resistant and dielectric strength are desired.

Abstract: The present invention relates to an alumina-zirconia nanostructured composite material characterised in that the content of elements other than Al, Zr, Hf, Y, Ce and O is less than 100 ppm, the Cl content is less than 1 ppm, at least one of the components has a mean grain size in the final material smaller than 500 nm, and at least 1/10 of the particles are in the intragranular position. Another object of the invention is the process for obtaining said material, as well as the use thereof.

Abstract: A method of making an object using mold casting, comprising the steps of applying a slip mixture into a mold fabricated by 3D printing or additive manufacturing technique, and firing the mold containing the slip mixture. A composition of a slip mixture for use with a mold fabricated by 3D printing or additive manufacturing technique, the composition comprising calcium aluminate, from 10% to 60% by weight, and a filler. Such method and composition can provide efficient and economically viable ways of fabricating objects having complex shapes and high density.

Abstract: The invention relates to a communication device using radio waves with frequencies of 800 MHz to 3 GHz, comprising a ceramic cover at least partially exposed to the external environment of the device, at least one portion of said waves passing therethrough during the use of the device, said cover being at least partially made of a sintered product having a chemical composition such as, by weight and for a total of 100%, 32%?ZrO2?95%, 1%<Y2O3+CeO2+Sc2O3+MgO+CaO, 0%?CeO2?26%, 0%?MgO?43%, 0%?CaO?37%, 0%?SiO2?41%, 0%?Al2O3?55%, 0%?TiO2?30%, 0%?lanthanide oxide, except for CeO2?50% 0%SrO?24%, o %?iAlON compounds ?50%, and other compounds ?15%.

Abstract: Provided is a zinc oxide sputtering target, which can effectively suppress the occurrence of break or crack in the target during sputtering to enable production of a zinc oxide transparent conductive film with high productivity. The zinc oxide sputtering target is composed of a zinc oxide sintered body comprising zinc oxide crystal grains, wherein the zinc oxide sputtering target has a sputter surface having a (100) crystal orientation degree of 50% or more.

Abstract: A sputtering target which is made of a magnesium oxide sintered body having a purity of not less than 99.99% or not less than 99.995% by mass %, a relative density of not less than 98%, and an average grain size of not more than 8 ?m. The average grain size of the sputtering target is preferably not more than 5 ?m, more preferably not more than 2 ?m. A sputtered film having an excellent insulation resistance and an excellent homogeneity can be obtained by using the sputtering target.

Abstract: The invention provides an artificial marble and a method for manufacturing the artificial marble. The artificial marble is manufactured using raw materials such as silica, fluorspar and one or more waste materials. The one or more waste materials are selected from a group that includes limestone, clay, magnesite and phosphate.

Abstract: To provide a tin oxide refractory which prevents volatilization of SnO2 in a high temperature zone from an early stage and which also has high erosion resistance to glass. A tin oxide refractory comprising SnO2, SiO2 and ZrO2 as essential components, wherein the total content of SnO2, SiO2 and ZrO2 in the tin oxide refractory is at least 70 mass %, and, based on the total content of SnO2, SiO2 and ZrO2, the content of SnO2 is from 32 to 98 mol %, the content of SiO2 is from 1 to 35 mol % and the content of ZrO2 is from 1 to 35 mol %.

Abstract: A process for producing a ringlike oxidic shaped body by mechanically compacting a pulverulent aggregate introduced into the fill chamber of a die, wherein the outer face of the resulting compact corresponds to that of a frustocone.

Abstract: Ceramic materials comprising charge-compensating dopants and related methods. In some embodiments, the materials may comprise dopants such as Y2O3, Gd2O3, Nb2O5, and/or Ta2O5. Some embodiments may comprise a molar concentration of Y2O3 and/or Gd2O3 that is at least approximately equal to the molar concentration of Nb2O5 and/or Ta2O5. Certain embodiments and implementations may comprise particular, unique concentrations or concentration ranges of various compounds/materials in order to improve performance for use of such ceramic materials as biomedical implants.

Abstract: Embodiments of apparatus, systems, and methods relating to biomedical implants and other devices made up of unique and improved alumina-zirconia ceramic materials. In an example of a method according to an implementation of the invention, a slurry is prepared, compressed, and fired to obtain a fired ceramic piece comprising at least aluminum oxide, zirconium dioxide, yttrium oxide, cerium oxide, strontium oxide, magnesium oxide, titanium dioxide, and calcium oxide. Some embodiments and implementations may comprise selected concentrations of one or more such compounds to yield certain preferred results.

Abstract: A process for the manufacture of a zirconium oxide prosthesis, the zirconium oxide being stabilized, which process includes the following steps: a) compacting a zirconium oxide powder at a pressure of at least 45 MPa to an object of a desired form, b) impacting an etchable medium into the surface, c) optionally working the object to a final shape, d) sintering the body at a temperature of above 1170° C. to transfer zirconium oxide into a tetragonal crystalline structure, and e) etching the etchable medium using hydrofluoric acid to remove the medium and impart a micromechanical retention surface. A prosthesis prepared by this process is also disclosed.

Abstract: A sputtering target including a sintered body: the sintered body including: indium oxide doped with Ga or indium oxide doped with Al, and a positive tetravalent metal in an amount of exceeding 100 at. ppm and 1100 at. ppm or less relative to the total of Ga and indium, or Al and indium, the crystal structure of the sintered body substantially including a bixbyite structure of indium oxide.

Abstract: The invention relates to a bearing comprising a sintered ceramic body traversed by a hole. According to the invention, the body includes a top surface and a bottom surface each of which includes a functional element communicating with said hole.

Abstract: A method for manufacturing a sputtering target with which an oxide semiconductor film with a small amount of defects can be formed is provided. Alternatively, an oxide semiconductor film with a small amount of defects is formed. A method for manufacturing a sputtering target is provided, which includes the steps of: forming a polycrystalline In-M-Zn oxide (M represents a metal chosen among aluminum, titanium, gallium, yttrium, zirconium, lanthanum, cesium, neodymium, and hafnium) powder by mixing, sintering, and grinding indium oxide, an oxide of the metal, and zinc oxide; forming a mixture by mixing the polycrystalline In-M-Zn oxide powder and a zinc oxide powder; forming a compact by compacting the mixture; and sintering the compact.

Abstract: Provided are a zinc oxide-based sputtering target, a method of preparing the same, and a thin film transistor including a barrier layer deposited by the zinc oxide-based sputtering target. The zinc oxide-based sputtering target includes a sintered body that is composed of zinc oxide in which indium oxide is doped in a range from about 1% w/w to about 50% w/w. A backing plate is coupled to a back of the sintered body. The backing plate supports the sintered body.

Abstract: A component includes a body including zircon (ZrSiO4) grains, the body having a free silica intergranular phase present between the zircon grains and distributed substantially uniformly through the body. The body comprises a content of free silica not greater than about 2 wt. % for the total weight of the body.

Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a method in which a selection is made for a first major constituent, a second major constituent and a minor constituent for forming a desired material. The method can include mixing the first major constituent, the second major constituent and the minor constituent in a single mixing step to provide a mixture of constituents. The method can include drying the mixture of constituents to provide a dried mixture of constituents and calcining the dried mixture of constituents to provide a calcinated mixture of constituents. The method can include processing the calcinated mixture of constituents to provide a powder of constituents. Other embodiments are disclosed.

Abstract: 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.

Abstract: A sintered compact contains cubic sialon, ?-sialon, and at least one of a first component and a second component. The first component is at least one element selected from the group consisting of iron, cobalt, nickel, and group 4 elements, group 5 elements, and group 6 elements of the periodic table. The second component is at least one compound containing at least one element selected from the group consisting of group 4 elements, group 5 elements, and group 6 elements and at least one element selected from the group consisting of carbon, nitrogen, and boron.

Abstract: A sputtering target for a conductive oxide, such as SrRuO3, to be used for the sputter deposition of a conductive film that is to be in contact with a ferroelectric material in an integrated circuit. The sputtering target is formed by the sintering of a powder mixture of the conductive oxide with a sintering agent of an oxide of one of the constituents of the ferroelectric material. For the example of lead-zirconium-titanate (PZT) as the ferroelectric material, the sintering agent is one or more of a lead oxide, a zirconium oxide, and a titanium oxide. The resulting sputtering target is of higher density and lower porosity, resulting in an improved sputter deposited film that does not include an atomic species beyond those of the ferroelectric material deposited adjacent to that film.

Abstract: The invention relates to a method of manufacturing an element comprising the following steps: a) forming a body made of oxide based ceramic; b) exposing at least one portion of the external surface of the body to a reduction reaction, to remove oxygen atoms to a predetermined depth in order to make the at least one portion electrically conductive; c) depositing a metallic material starting from the at least one electrically conductive portion; d) machining the body and/or the metallic material in order to provide the element with an aesthetic finish. The invention concerns the field of timepieces.

Abstract: [Object] Provided are a Zn—Sn—O-based oxide sintered body which is used as a sputtering target or a tablet for vapor deposition and which is resistant to crack formation and the like during film formation, and a method for producing the same. [Solving means] The oxide sintered body is characterized in that tin is contained with an atomic ratio of Sn/(Zn+Sn) being 0.01 to 0.6, an average crystal particle diameter of the sintered body is 4.5 ?m or less, and a degree of orientation represented by I(222)/[I(222)+I(400)] is 0.52 or more, where I(222) and I(400) represent integrated intensities of the (222) plane and the (400) plane of a Zn2SnO4 phase measured by X-ray diffraction using the CuK? radiation.

Abstract: A method for making a rare earth doped polycrystalline ceramic laser gain medium by hot pressing a rare earth doped polycrystalline powder where the doping concentration is greater than 2% and up to 10% and where the grain size of the final ceramic is greater than 2 ?m. The polycrystalline powder can be Lu2O3, Y2O3, or Sc2O3, and the rare earth dopant can be Yb3+, Er3+, Tm3+, or Ho3+. Also disclosed is the related rare earth doped polycrystalline ceramic laser gain medium prepared by this method.

Abstract: Provided is a method of manufacturing a transparent sesquioxide sintered body by which a transparent M2O3 type sesquioxide sintered body can be manufactured. A powder including particles of an oxide of at least one rare earth element selected from Y, Sc or lanthanide elements and Zr oxide particles is prepared as a raw material powder, wherein in the particle size distribution of the rare earth element oxide particles, or in the particle size distribution of secondary particles in the case where the rare earth element oxide particles are agglomerated to form the secondary particles, the particle diameter D2.5 value at which the cumulative particle amount from the minimum particle size side is 2.5% based on the total particle amount is in the range from 180 nm to 2000 nm, inclusive. The raw material powder is press molded into a predetermined shape, followed by sintering.

Abstract: A mixed powder was prepared by weighing Yb2O3 and SrCO3 in such a way that the molar ratio became 1:1. The resulting mixed powder was subjected to uniaxial pressure forming, so as to produce a disc-shaped compact. The compact was heat-treated in an air atmosphere, so that a complex oxide was synthesized. The resulting complex oxide was pulverized. After the pulverization, a slurry was taken out and was dried in a nitrogen gas stream, so as to produce a synthesized powder material. The resulting synthesized powder material was subjected to uniaxial pressure forming, so as to produce a disc-shaped compact. The resulting compact was fired by a hot-press method, so as to obtain a corrosion-resistant member for semiconductor manufacturing apparatus. The resulting corrosion-resistant member was made from a SrYb2O4.

Abstract: A method of making an aluminum titanate ceramic article including: selecting properties for the aluminum titanate-containing ceramic body to be made by the method, the selected properties include pore size, modulus of rupture (MOR), or both; selecting a fine-to-coarse weight ratio (f:c) of fine alumina particles and coarse alumina particles for a batch, the total amount of the fine and the coarse alumina particles is from 44 to 52 weight percent of the batch; forming an aluminum titanate batch mixture including the selected fine-to-coarse weight ratio (f:c) of the fine alumina particles and the coarse alumina particles; forming a green body from the batch mixture; and firing the green body to obtain an aluminum titanate-containing ceramic body having the selected properties, as defined herein.

Abstract: To provide a light-transmitting window material made of a spinel sintered body, wherein the largest diameter of pores contained in the light-transmitting window material is not more than 100 ?m, and the number of pores having a largest diameter of not less than 10 ?m is not more than 2.0 per 1 cm3 of the light-transmitting window material, and wherein light scattering factors are further reduced, and a method for producing a spinel light-transmitting window material including the steps of preparing a spinel molded body; a primary sintering step of sintering the spinel molded body at normal pressure or less or in a vacuum at a temperature in the range of 1500 to 1900° C.; and a secondary sintering step of sintering the spinel molded body under pressure at a temperature in the range of 1500 to 2000° C., wherein the relative density of the spinel molded body after the primary sintering step is 95 to 96% and the relative density of the spinel molded body after the secondary sintering step is 99.8% or more.

Abstract: Crucible compositions and methods of using the crucible compositions to melt titanium and titanium alloys. More specifically, crucible compositions having intrinsic facecoats that are effective for melting titanium and titanium alloys for use in casting titanium-containing articles. Further embodiments are titanium-containing articles made from the titanium and titanium alloys melted in the crucible compositions. Another embodiment is a crucible curing device and methods of use thereof.