5 results about "Samarium oxide" patented technology

Method for producing a resistive particle sensor (1) for detecting particles in a gas stream, wherein the particle sensor (1) comprises an electrode system (2) of at least two electrodes (3, 4) and at least one semiconducting material (5), wherein the semiconducting material (5) contacts the electrodes (3, 4), wherein the semiconducting material (5) is at least one oxide selected from the group consisting of rare-earth-rare-earth mixed oxides, rare-earth-zirconium mixed oxides, alkaline-earth-zirconium mixed oxides, transition-metal-zirconium mixed oxides, rare-earth-aluminum mixed oxides, alkaline-earth-aluminum mixed oxides, transition-metal-aluminum mixed oxides, rare-earth-titanium mixed oxides, barium-titanium mixed oxides, transition-metal-titanium mixed oxides, rare-earth-indium mixed oxides, Alkaline earth indium mixed oxides, transition metal indium mixed oxides, rare earth zinc mixed oxides, alkaline earth zinc mixed oxides, transition metal zinc oxide mixed oxides, samarium oxide, yttrium oxideTerbium oxide and / or mixtures thereof, comprising, wherein a voltage is applied to the electrodes (3, 4) and the semiconducting material (5) under an atmosphere free of oxidizing and / or reducing agents, the voltage being selected such that at least one metal of the semiconducting material (5) is at least partially reduced or oxidized in the regions of the semiconducting material (5) which contact the electrodes (3, 4), characterized in that both electrodes (3, 4) are connected simultaneously at the same potential relative to the semiconducting material (5).

The application provides a high-breathability X / gamma ray protection flexible film and a preparation method and application thereof, and belongs to the technical field of radiation protection materials.The flexible film takes polyurethane as a matrix, takes bismuth oxide, tungsten oxide and hydrophobic modified samarium oxide as fillers, and forms a porous structure through a wet forming process.The flexible film material simultaneously forms an efficient shielding network and a connected breath channel inside, not only gives the film excellent breathability, but also synergistically enhances the radiation protection effect by optimizing the distribution of the fillers, realizes the synergistic improvement of high breathability and high X / gamma ray shielding efficiency, avoids the toxicity of lead, and has a simple preparation method and is suitable for large-scale production.

The application relates to the technical field of special ceramic insulator preparation, in particular to a high-temperature-resistant alumina ceramic insulator and a preparation method thereof. The high-temperature-resistant alumina ceramic insulator is prepared from raw materials with the following mass percentages: 1-10% of a sintering aid, 0.5-5% of toughening combined fillers, and the balance of alumina aggregate; the sintering aid is composed of at least one of zirconium oxide, rare earth oxide, calcium oxide, magnesium oxide, silicon dioxide, manganese dioxide and titanium dioxide; the rare earth oxide is at least one of yttrium oxide, lanthanum oxide, samarium oxide and cerium oxide; and the toughening combined fillers are one or a combination of multiple kinds of alumina whiskers, zinc oxide whiskers, zirconium oxide whiskers, aluminum nitride whiskers, silicon nitride crystal forms and potassium titanate whiskers. The high-temperature-resistant alumina ceramic insulator has excellent compressive strength and tensile strength and good impact toughness, and can meet the performance requirements of an insulator of an extra-high voltage power transmission network.

This invention discloses a method for selectively leaching and separating cobalt, iron, copper, and samarium from samarium-cobalt waste. Utilizing the characteristic that the solubility of samarium sulfate decreases with increasing sulfuric acid concentration and reaction temperature, the samarium-cobalt waste is leached in high-concentration sulfuric acid containing an oxidant at a relatively high reaction temperature. This process leaves most of the samarium in the slag, while cobalt, iron, and copper are leached into the solution through oxidative acid leaching, thus achieving initial separation of cobalt, copper, iron, and samarium. Then, phosphoric acid / phosphate and copper extractants are used to separate iron, copper, and cobalt, respectively. The main components of samarium-rich and samarium-containing slags are Sm₂(SO₄)₃·8H₂O and NaSm(SO₄)₂·H₂O. These are converted to Sm(OH)₃ precipitate using sodium hydroxide, then dissolved in hydrochloric acid, precipitated with oxalic acid, and sintered to prepare high-purity samarium oxide. This invention can effectively separate and recover Co, Ni, Cu, and Sm from samarium-cobalt waste, offering advantages such as high metal recovery rate, high product purity, and environmental friendliness.

This utility model relates to a multifunctional composite coated glass cover and a display module containing the same, comprising a glass substrate and composite coated structures on its front and back sides. The front coated structure, from the outside to the inside, comprises: a gold-palladium alloy layer (5-10 nm thick); a chromium-nickel alloy layer (10-20 nm thick); and a samarium oxide coating layer (5-10 nm thick). The back coated structure, from the outside to the inside, comprises: a photosensitive color-changing ink screen printing layer (4-5 μm thick, containing a polymer matrix with spiropyran derivatives); a titanium oxide layer (10-20 nm thick, with an anatase crystal structure); and a titanium-aluminum alloy layer (20-30 nm thick). The glass cover has asymmetrically arranged snap-fit ​​grooves at the center of each of its four opposite sides. The snap-fit ​​grooves have an inverted "L" shaped cross-section. Correspondingly, the backlight portion of the display module has snap-fits. During assembly, the snap-fit ​​grooves and snap-fits cooperate to form an assembly.