Abstract: A phosphorescent phosphor having a high afterglow luminance is provided. The phosphorescent phosphor comprises, as a matrix, a compound represented by MAl2O4, the metal element represented by M comprising Sr, Mg and Ba, and the phosphorescent phosphor containing, Eu as an activator, and Dy as a co-activator, wherein the content of Eu, in terms of molar ratio, is 0.001?Eu/(M+Eu+Dy)?0.05; the content of Dy, in terms of molar ratio, is 0.004?Dy/(M+Eu+Dy)?0.06; the content of Mg, in terms of molar ratio, is 0.02?Mg/(M+Eu+Dy)?0.1; the content of Ba, in terms of molar ratio, is 0.03?Ba/(M+Eu+Dy)?0.15; and the phosphorescent phosphor contains at least one alkali metal element of the group consisting of Li, Na, K and rubidium (Rb). Mg and Ba as well as the alkali metal element(s) contained in the phosphorescent phosphor provide an excellent phosphorescent phosphor having a high afterglow luminance.

Abstract: A copper ingot of the present invention which is casted by a belt-caster type continuous casting apparatus includes: 1 ppm by mass or less of carbon; 10 ppm by mass or less of oxygen; 0.8 ppm by mass or less of hydrogen; 15 ppm by mass to 35 ppm by mass of phosphorus; and a balance of Cu and inevitable impurities, and includes inclusions formed of oxides containing carbon, phosphorus, and Cu.

Abstract: A method for producing a photo-luminescent material, including the following steps: (1) producing, according to a sol-gel method, a sol and then a gel of first precursors of a first substance from the sol; (2) crushing the gel; (3) optionally, annealing the gel in order to form first particles of the first substance of which the average size is between 1 pm and 20 um; (4) producing a colloidal dispersion of second particles of a second substance, different from the first substance or identical to the first substance, of which the average size is between 5 nm and 400 nm; (5) mixing the colloidal dispersion with the sol in step (1) before forming the gel or with the first particles after step (3); and (6) annealing the mixture obtained in step (5), resulting in an increase in the compactness of the mixture, the average size of the second particles after annealing being between 100 nm and 900 nm.

Abstract: The patent relates to para amino benzoic acid (pABA) sensitized terbium (Tb3+) doped spherical LaF3 nanoparticles used for detection of nitro group containing compounds using the terbium (Tb3+) doped spherical LaF3 nanoparticles sensitized by para amino benzoic acid (pABA).

Abstract: The invention provides a lighting unit (100) comprising a light source (10), configured to generate light source light (11) and a luminescent material (20), configured to convert at least part of the light source light (11) into luminescent material light (51), wherein the luminescent material (20) comprises a phosphor (40), wherein this phosphor comprises an alkaline earth aluminum nitride based material having a cubic crystal structure with T5 supertetrahedra, wherein the T5 supertetrahedra comprise at least Al and N, and wherein the alkaline earth aluminum nitride based material further comprises a luminescent lanthanide incorporated therein.

Abstract: The present invention relates to a solid thermally insulating material, essentially free of phyllosilicates, comprising (a) from 70 to 98% by volume of hydrophobic silica aerogel particles having an intrinsic density between 110 and 210 kg/m, (b) from 0.3 to 12% by volume of an organic binder formed by at least one organic polymer (b1) and at least one surfactant (b2), or by an amphiphilic organic polymer (b3), these volume fractions being determined by image analysis on thin sections of the solid material and being given relative to the total volume of the material, the aerogel particles having a particle size distribution that has at least two maxima, with a first maximum corresponding to an equivalent diameter (d) of less than 200 ?m, preferably between 25 ?m and 150 ?m, and a second maximum corresponding to an equivalent diameter (D) between 400 ?m and 10 mm, preferably between 500 ?m and 5 mm. It also relates to a thermally insulating product containing at least one layer of this material.

Abstract: Disclosed herein are embodiments of composite hexagonal ferrite materials formed from a combination of Y phase and Z phase hexagonal ferrite materials. Advantageously, embodiments of the material can have a high resonant frequency as well as a high permeability. In some embodiments, the materials can be useful for magnetodielectric antennas.

Abstract: The invention described in the present specification relates to a color conversion film including a resin matrix; and an organic fluorescent substance dispersed in the resin matrix, wherein the organic fluorescent substance includes a green fluorescent substance having a maximum light emission wavelength in a 510 nm to 560 nm range when irradiating light including a 450 nm wavelength, and a red fluorescent substance having a maximum light emission wavelength in a 600 nm to 660 nm range when irradiating light including a 450 nm wavelength, the green fluorescent substance and the red fluorescent substance have a molar ratio of 5:1 to 50:1, and the color conversion film has a light emission peak with a full width at half maximum (FWHM) of 50 nm or less in a 510 nm to 560 nm range and a light emission peak with a FWHM of 90 nm or less in a 600 nm to 660 nm range when irradiating light, a method for preparing the same, and a backlight unit including the color conversion film.

Abstract: The present invention provides a lead-free piezoelectric material having a high piezoelectric constant over a wide operating temperature region. Therefore, the present invention relates to a piezoelectric material including a perovskite-type metal oxide represented by general formula (1) below as a main component, wherein the average valence, of Sn contained in the general formula (1) lies between 2 and 4. (BavCawSnxTiyZrz)O3 (where 0.620?v?0.970,0.010?w?0.200,0.030?x?0.230,0.865?y?0.990,0?z?0.085, and 1.986?v+w+x+y+z?2.

Abstract: A method includes obtaining particles of a phosphor precursor of formula Ax[MFy]:Mn4+, reducing sizes of the particles of the phosphor precursor by wet milling the particles and annealing the particles that are wet milled by contacting the particles with a fluorine-containing oxidizing agent. Additionally, a manganese doped complex fluoride phosphor prepared by this method is provided. A lighting apparatus and backlight device that include manganese-doped phosphor prepared by this method also are provided.

Abstract: Process to recover copper from a process feed including one or more feed components containing a base metal sulphidic feed, iron, copper and arsenic. Process feed and aqueous quench solution are introduced to a pressure oxidative leaching step with a partial pressure of oxygen above 200 kPa to form free sulphuric acid, to solubilize copper and other metal in the feed as aqueous sulphate compounds and to precipitate arsenic as solid iron arsenic compounds. A treated slurry comprising a liquid phase containing sulphuric acid and copper sulphate, and solids containing the iron arsenic compounds is withdrawn and the liquid phase is separated from the solids. To lessen arsenic re-dissolution and to maintain stability of the solid iron arsenic compounds, one or more of temperature, free acid level and residence time of the treated slurry is controlled. Copper metal is recovered from the separated liquid phase.

Abstract: A copper alloy having the following composition (in % by weight): from 10.6 to 18% of Al, from 10.5 to 14.5% of Ni, optionally up to 2% of Fe, optionally up to 1% of Co, optionally up to 0.5% of Ti, optionally up to 0.5% of Mn, optionally up to 0.15% of B, optionally up to 0.1% of Ca, and optionally up to 0.1% of C, with the balance being copper and unavoidable impurities. Nickel aluminides of the NiAl type are embedded as precipitates in the microstructure of the alloy.

Abstract: A nickel-base superalloy consisting of, by weight: 14.6% to 15.9% cobalt; 11.5% to 13.0% chromium; 0.8% to 1.2% iron; 0.2% to 0.60% manganese; 2.00% to 2.40% molybdenum; 3.30% to 3.70% tungsten; 2.90% to 3.30% aluminum; 2.60% to 3.10% titanium; 3.50% to 5.10% tantalum; 1.20% to 1.80% niobium; 0.10% to 0.60% silicon; 0.02% to 0.06% carbon; 0.010% to 0.030% boron; 0.05% to 0.11% zirconium; up to 0.045% hafnium; and the balance being nickel and impurities.

Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a thiol-substituted silicone ligand.

Abstract: An interlayer comprised of a thermoplastic resin, at least one luminescent pigment and a carboxylic acid additive. The use of a thermoplastic resin, at least one luminescent pigment and a carboxylic acid additive reduces or minimizes the optical defects (such as high color or yellowness and increased haze) caused by discoloration of the pigment without sacrificing other characteristics of the interlayer.

Abstract: Fe—Cr—Ni—Mo alloy having superior surface properties and a method for producing the same using a commonly used apparatus at low cost. The Fe—Cr—Ni—Mo alloy has (% indicates mass %): C: ?0.03%, Si: 0.15 to 0.5%, Mn: 0.1 to 1%, P: ?0.03%, S: ?0.002%, Ni: 20 to 32%, Cr: 20 to 26%, Mo: 0.5 to 2.5%, Al: 0.1 to 0.5%, Ti: 0.1 to 0.5%, Mg: 0.0002 to 0.01%, Ca: 0.0002 to 0.01%, N: ?0.02%, O: 0.0001 to 0.01%, freely contained components of Co: 0.05 to 2% and Cu: 0.01 to 0.5%, Fe as a remainder, and inevitable impurities, wherein MgO, MgO.Al2O3 spinel type, and CaO—Al2O3—MgO type are contained as oxide type non-metallic inclusions, ratio of number of MgO.Al2O3 spinel type to all oxide type non-metallic inclusions is ?50%, and CaO—Al2O3—MgO type contains CaO: 30 to 70%, Al2O3: 5 to 60%, MgO: 1 to 30%, SiO2: ?8%, and TiO2: ?10%.

Abstract: Embodiments of the present disclosure provide for methods of making quantum dots (QDs) (passivated or unpassivated) using a continuous flow process, systems for making QDs using a continuous flow process, and the like. In one or more embodiments, the QDs produced using embodiments of the present disclosure can be used in solar photovoltaic cells, bio-imaging, IR emitters, or LEDs.

Abstract: Embodiments of the invention relate to a composite film and a fabrication method thereof, a photoelectric element and a photoelectric apparatus. The fabrication method of the composite film includes: preparing a polyfluorene-based compound solution, wherein the polyfluorene-based compound solution includes polyfluorene or polyfluorene derivatives; preparing a quantum dot solution; mixing the polyfluorene-based compound solution and the quantum dot solution together to prepare a mixed solution; removing a solvent in the mixed solution to prepare the composite film.

Abstract: An aluminum bronze alloy containing 7.0-10.0% by weight Al; 3.0-6.0% by weight Fe; 3.0-5.0% by weight Zn; 3.0-5.0% by weight Ni; 0.5-1.5% by weight Sn; ?0.2% by weight Si; ?0.1% by weight Pb; and the remainder Cu in addition to unavoidable impurities. Also described is an aluminum bronze product having such an alloy composition, and a method for producing such a product from an aluminum bronze alloy.

Abstract: A nickel-base superalloy that includes 6.55% to 7.15% aluminum, 3.3% to 3.7% titanium, 1.2% to 1.7% tantalum, and 0.8% to 1.0% niobium, such that a combined atomic percentage of the aluminum, the titanium, the tantalum and the niobium is between 12.65% and 13.15% to provide substantially 51% to 53% by volume of gamma prime precipitates.