Abstract: A sintered bead with the following crystal phases, in percentages by mass based on crystal phases: 25%?zircon, or “Z1”, ?94%; 4%?stabilized zirconia+stabilized hafnia, or “Z2”, ?61%; monoclinic zirconia+monoclinic hafnia, or “Z3”?50%; corundum?57%; crystal phases other than Z1, Z2, Z3 and corundum<10%; the following chemical composition, in percentages by mass based on oxides: 33%?ZrO2+HfO2, or “Z4”?83.4%; HfO2?2%; 10.6%?SiO2?34.7%; Al2O3?50%; 0%?Y2O3, or “Z5”; 0%?CeO2, or “Z6”; 0.3%?CeO2+Y2O3?19%, provided that (1) CeO2+3.76*Y2O3?0.128*Z, and (2) CeO2+1.3*Y2O3?0.318*Z, with Z=Z4+Z5+Z6?(0.67*Z1*(Z4+Z5+Z6)/(0.67*Z1+Z2+Z3)); MgO?5%; CaO?2%; oxides other than ZrO2, HfO2, SiO2, Al2O3, MgO, CaO, CeO2 and Y2O3<5.0%.

Abstract: The present invention provides a silicate glass that can reduce a color change in base material zirconia even when simultaneously fired with an unsintered zirconia. The present invention also provides a dental product using same. The present invention relates to a silicate glass comprising: 65.0 to 90.0 mol % SiO2, 4.0 to 15.0 mol % Al2O3, 1.0 to 10.0 mol % K2O, 0.1 to 7.0 mol % Na2O, and 0.01 to 15.0 mol % CaO, the silicate glass being essentially free of B2O3, and satisfying the relation {(number of moles of Al2O3)/(total number of moles of RO+R2O)}?0.70, wherein R in the metal oxide represented by RO represents a metallic element in group 2 or 12 of the periodic table, and R in the metal oxide represented by R2O represents a metallic element in group 1 of the periodic table. The present invention also relates to a composite comprising the silicate glass and a base material formed of a ceramic; a sintered body as a fired product of the composite; and a dental product comprising the sintered body.

Abstract: A flat glass is provided that exhibits high transmittance to electromagnetic radiation in a range of wavelengths from 200 nm to 1500 nm. The transmittance for the flat glass having a thickness of 1 mm is 20% or more at a wavelength of 254 nm, 82% or more at a wavelength of 300 nm, 90% or more at a wavelength of 350 nm, 92% or more at a wavelength of 546 nm, 92.5% or more at a wavelength of 1400 nm, 91.5% or more in a wavelength range from 380 nm to 780 nm, and 92.5% or more in a wavelength range from 780 nm to 1500 nm.

Abstract: A ceramic waveguide includes: a doped metal oxide ceramic core layer; and at least one cladding layer comprising the metal oxide surrounding the core layer, such that the core layer includes an erbium dopant and at least one rare earth metal dopant being: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, thulium, ytterbium, lutetium, scandium, or oxides thereof, or at least one non-rare earth metal dopant comprising zirconium or oxides thereof. Also included is a quantum memory including: at least one doped polycrystalline ceramic optical device with the ceramic waveguide and a method of fabricating the ceramic waveguide.

Abstract: The disclosure relates to a Low Temperature Co-fired Ceramic (LTCC) substrate and a preparation method thereof, and in particular to a dielectric-constant-adjustable LTCC substrate and a preparation method thereof. The LTCC substrate of the disclosure includes the following components: glass, SiO2 and Al2O3, a weight percentage of the SiO2 in the LTCC substrate is 10% to 25%.

Abstract: A glass sheet contains, as represented by mass percentage based on oxides, SiO2: 65-75%, Al2O3: 0-20%, MgO: 0-5%, CaO: 2-20%, Na2O: 5-20%, K2O: 0-10%, total iron in terms of Fe2O3 (t-Fe2O3): 0.2-1.0%, TiO2: 0.65-1.5%, and CeO2: 0.1-2.0%. A ratio of the content of MgO to RO is 0.20 or less, where RO is a total amount of MgO, CaO, SrO and BaO. Fe-redox is from 30 to 57%. The glass sheet has a visible light transmittance Tv_A of 65% or more, a solar transmittance Te of 50% or less, and a dominant wavelength Dw of transmitted light of from 508 to 580 nm, in terms of a 3.9-mm thickness of the glass sheet. A value of A=([t-Fe2O3]×Fe-redox)/[TiO2] is from 20 to 40, where [t-Fe2O3] is the content of t-Fe2O3 and [TiO2] is the content of TiO2.

Abstract: A batch composition containing pre-reacted inorganic spheroidal particles and pore-former spheroidal particles. The pre-reacted inorganic spheroidal particles have a particle size distribution wherein 10 ?m?DI50?50 ?m, and DIb?2.0, and the pore-former spheroidal particles have a particle size distribution wherein 0.40 DI50?DP50?0.90 DI50, and DPb?1.32, wherein DI50 is a median particle diameter of the distribution of pre-reacted inorganic spheroidal particles, DP50 is a median particle diameter of the pore-former particle size distribution, DIb is a breadth factor of the pre-reacted particle size distribution of the pre-reacted inorganic spheroidal particles, and DPb is a breadth factor of the pore-former particle size distribution. Also, green honeycomb bodies manufactured from the batch compositions, and methods of manufacturing a honeycomb body using the batch compositions, are provided.

Abstract: A method for producing a granular material from sintered magnesia by sintering of pressed articles, in particular pellets, from MgO powder, preferably from caustic MgO powder, and subsequent mechanical comminution of the pressed articles, the sintering being carried out in such a way that the granular material has a grain porosity (total porosity), according to DIN EN 993-1:1195-04 and DIN EN 993-18:1999-01, of from 15 to 38 vol %, preferably 20 to 38 vol %. Also, a batch for producing a coarse ceramic, refractory, shaped or unshaped product containing the porous sintered magnesia, to such a product produced from the batch and to a method for its production, to a lining, in particular a working casing and/or a backing, of a large-volume industrial furnace, the lining, in particular the working casing and/or the backing, having at least one such product, as well as to such an industrial furnace.

Abstract: The invention relates to glass ceramics and glasses with a europium content, containing the following components: Component wt.-% SiO2 30.0 to 75.0 Al2O3 10.0 to 45.0 Europium, calculated as Eu2O3 0.05 to 5.0? and which are suitable in particular for the production of restorations, the fluorescence properties of which largely correspond to those of natural teeth.

Abstract: A concrete product set by pouring a concrete slurry includes a) a concrete mixture; b) a graphene oxide admixture; c) a colloidal silica admixture; and d) at least one reinforcing fiber selected from the group of fibers. As the poured concrete slurry cures, the poured slurry hardens into a composite material product, and the composite material defines capillary structures that at least in part fill with silica and lime, and the surrounding composite material is embedded with graphene oxide flakes. In another exemplary embodiment, the present invention is directed to a process for preparing a concrete product. The process comprises the steps of a) preparing a concrete slurry; b) pouring the concrete slurry; and c) allowing the concrete slurry to cure. In another exemplary embodiment, the present invention is directed to the product itself; namely, a concrete product with or without fibers, or to the admixture(s).

Abstract: The invention relates to glass ceramics and glasses with cerium and tin content, which comprise the following components: Component wt.-% SiO2 42.0 to 80.0 Al2O3 0.1 to 42.0 Cerium, calculated as CeO2 0.5 to 10.0 Tin, calculated as SnO 0.1 to 4.0 and which are suitable in particular for the preparation of dental restorations, the fluorescence properties of which largely correspond to those of natural teeth.

Abstract: A member for a plasma processing apparatus has a tungsten carbide phase, and a sub-phase including at least one selected from the group consisting of phase I to IV, and phase V, in which the phase I is a carbide phase containing, as a constituent element, at least one of the elements of Group IV, V, and VI of the periodic table excluding W, the phase II is a nitride phase containing, as a constituent element, at least one of the elements of Group IV, V, and VI of the periodic table excluding W, the phase III is a carbonitride phase containing, as a constituent element, at least one of the elements of Group IV, Group V, and Group VI of the periodic table excluding W, the phase IV is a carbon phase, the phase V is a composite carbide phase which is represented by a formula WxMyCz.

Abstract: A recycled aluminium silicate material, suitable for use in ceramic article production, wherein the recycled aluminium silicate material has a particle size distribution such that: (i) the d50 particle size is from 10 ?m to 30 ?m; (ii) the d70 particle size is less than 40 ?m; and (iii) the d98 particle size is less than 60 ?m. A particulate mixture, suitable for use in ceramic article production, includes the above defined recycled aluminium silicate material.

Abstract: A glass substrate of the present invention has a temperature at a viscosity at high temperature of 102.5 dPa·s of 1,650° C. or less, and an estimated viscosity Log ?500 at 500° C. of 26.0 or more calculated by the equation Log ?500=0.167×Ps?0.015×Ta?0.062×Ts?18.5.

Abstract: Materials that seamlessly transition from opaque to transparent or translucent, such as advanced geopolymer-based ceramics to glass structures, which can be directly and seamlessly bonded without the use of an intermediate adhesive or use of a frame are disclosed. That is, a GP-based ceramic to glass structure can be bonded directly and seamlessly and without any mechanical joints, connective tissue or adhesives such as caulking or epoxy. Such ceramic to glass materials can be prepared by sintering an engineered geopolymer with glass to form the geopolymer-based advanced ceramic-glass structure in which the interface is visually abruptly or in which the material is a graded composition with a controlled transition from one material to the other.

Abstract: A concrete product set by pouring a concrete slurry includes a) a concrete mixture; b) a graphene oxide admixture; and c) at least one reinforcing fiber selected from the group of fibers. As the poured concrete slurry cures, the poured slurry hardens into a composite material product, and the composite material is embedded with graphene oxide. In another exemplary embodiment, the present invention is directed to a process for preparing a concrete product. The process comprises the steps of a) preparing a concrete slurry with integral graphene oxide; b) pouring the concrete slurry; c) allowing the concrete slurry to cure; and d) optionally spray-applying graphene oxide and/or optional colloidal silica as a curing technique. In another exemplary embodiment, the present invention is directed to the product itself; namely, a concrete product with fibers and embedded graphene oxide flakes.

Abstract: The invention relates to a batch composition for producing a refractory product, a method for producing a refractory product, a refractory product, and to the use of a synthetic raw material.

Abstract: The present application relates to glass-ceramics that are white, opalescent or opaque, of the lithium aluminosilicate (LAS) type, containing a solid solution of ?-spodumene as the main crystalline phase. The application also provides articles that are constituted, at least in part, of said glass-ceramics, precursor glasses for said glass-ceramics, and a method of preparing said article. Said glass-ceramics have a composition that is free from arsenic oxide and antimony oxide, with the exception of inevitable traces, and that contains the following, expressed as percentages by weight of oxides: 60% to 70% of SiO2, 18% to 23% of Al2O3, 3.0% to 4.3% of Li2O, 0 to 2% of MgO, 1 to 4% of ZnO, 0 to 4% of BaO, 0 to 4% of SrO, 0 to 2% of CaO, 1.3% to 1.75% of TiO2, 1% to 2% of ZrO2, 0.05% to 0.6% of SnO2, 0 to 2% of Na2O, 0 to 2% of K2O, 0 to 2% of P2O5, 0 to 2% of B2O3, with Na2O+K2O+BaO+SrO+CaO?6% and Na2O+K2O?2%, and a maximum of 500 ppm of Fe2O3.

Abstract: An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P2O5); 1 to 20 wt % of silicon dioxide (SiO2); 1 to 20 wt % of boron oxide (B2O3); 5 to 20 wt % of one or more of lithium superoxide (Li2O), sodium oxide (Na2O), or potassium oxide (K2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF2), or aluminum fluoride (AlF3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO2), vanadium pentoxide (V2O5), molybdenum trioxide (MoO3), or iron oxide (Fe2O3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.

Abstract: A ceramic material including Co0.5Ti0.5TaO4. The ceramic material is prepared as follows: 1) weighting and mixing raw powders of Co2O3, TiO2 and Ta2O5 proportioned according to the chemical formula of Co0.5Ti0.5TaO4, to yield a mixture; 2) mixing the mixture obtained in 1), zirconia balls, and deionized water according to a mass ratio of 1:4-6:3-6, ball-milling for 6-8 h, drying at 80-120° C., sieving with a 60-200 mesh sieve, calcining in air atmosphere at 800-1100° C. for 3-5 h, to yield powders comprising a main crystalline phase of Co0.5Ti0.5TaO4; and 3) mixing the powders obtained in 2), zirconia balls, and deionized water according to a mass ratio of 1:3-5:2-4, ball-milling for 4-6 h, and drying at 80-100° C.; adding a 2-5 wt. % of polyvinyl alcohol solution to a resulting product, granulating, sintering resulting granules at 1000-1100° C. in air atmosphere for 4-6 h.