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57 results about "Strontium oxide" patented technology

Strontium oxide or strontia, SrO, is formed when strontium reacts with oxygen. Burning strontium in air results in a mixture of strontium oxide and strontium nitride. It also forms from the decomposition of strontium carbonate SrCO₃. It is a strongly basic oxide.

Anti-counterfeiting composition for anti-counterfeiting chemical fiber and preparation method and use thereof

Provided is an anti-counterfeiting composition for anti-counterfeiting fibers, including a carrier, an anti-counterfeiting tracer and a dispersant, wherein the anti-counterfeiting tracer is composed of barium oxide, strontium oxide, aluminum oxide and zinc oxide, and a barium element content, a strontium element content, an aluminum element content, and a zinc element content in the anti-counterfeiting composition is controlled to a fixed feeding mass ratio; in percent by mass, the sum of the barium element content, strontium element content, aluminum element content, and zinc content accounts for 5-50% of the anti-counterfeiting composition; the carrier is a matrix polymer or a bio-derived oil. The anti-counterfeiting composition of the present disclosure can give the anti-counterfeiting fiber advantages of memory tracking properties and identification functions, high anti-counterfeiting capability, and good anti-counterfeiting concealment.
Owner:NANTONG TEXTILE & SILK IND TECH RES INST +1

Composite having radiation-shielding function and method for manufacturing composite having radiation-shielding function

PCT designated stageWO2026023111A1ShieldingGadolinium oxideSilicon oxide
The present invention developed a composite having a novel structure containing, in a high content, a powder having a radiation-shielding function. Provided is a composite having a radiation-shielding function and a method for producing the same. The composite comprises a preform made from a mixture containing a liquid silica-based binder and one or more radiation-shielding powders selected from gadolinium oxide, boron carbide, boron oxide, boron, barium sulfate, strontium oxide, tungsten, tungsten oxide, tungsten carbide, molybdenum, molybdenum oxide, iron powder, iron oxide powder, and ferrite powder, the radiation-shielding powder(s) being contained in the range from 3% to 85% in total. All of the voids in the preform are impregnated and filled with molten aluminum and solidification is allowed to occur to form a composite, or 25% or more of the voids in the preform are impregnated with a liquid organic / inorganic sealing agent and solidification is allowed to occur to form a composite. The liquid silica-based binder has properties that allow the preform to be formed at a temperature at which the radiation-shielding powder(s) does not decompose.
Owner:ADVANCE COMPOSITE CORP

Multilayer chip ceramic capacitor and method for manufacturing the same

The application discloses a multilayer chip ceramic capacitor and a preparation method thereof, and relates to the technical field of ceramic capacitors. The multilayer chip ceramic capacitor comprises a silicon substrate layer, a dielectric ceramic layer, an internal electrode layer and an end electrode. The end electrode is arranged above the silicon substrate layer, and the internal electrode layer is arranged below the end electrode. The dielectric ceramic layer is arranged between the internal electrode layers. The dielectric ceramic layer is made of a nano-level barium titanate plate, and the barium titanate plate is doped with lanthanum oxide, strontium oxide and calcium oxide. The internal electrode layer is made of nickel particles and coated with rare earth oxides to reduce oxidation. The end electrode comprises a first corrosion-resistant layer, a second corrosion-resistant layer and a third corrosion-resistant layer. The third corrosion-resistant layer is fixedly connected to the top end of the silicon substrate layer. The second corrosion-resistant layer is arranged at the top end of the first corrosion-resistant layer. The third corrosion-resistant layer is arranged at the top end of the second corrosion-resistant layer. The end electrode can prevent metal migration during long-term use, and the contact effect is improved.
Owner:ZHUHAI LEAGUER CAPACITOR

A process for the production of acetonitrile by the amination of acetate

This application discloses a method for producing acetonitrile by amination of acetate, comprising the following steps: in a reactor, acetate, ammonia, and a catalyst are contacted and reacted to obtain acetonitrile; wherein the acetate is selected from at least one of methyl acetate, ethyl acetate, propyl acetate, butyl acetate, and cyclohexyl acetate; the catalyst is composed of a support and alkaline earth metal oxides and alkali metal oxides supported on the surface of the support; wherein the support is selected from at least one of silicon oxide, aluminum oxide, titanium oxide, and zirconium oxide; wherein the alkaline earth metal oxide is selected from at least one of magnesium oxide, calcium oxide, strontium oxide, and barium oxide; wherein the alkali metal oxide is selected from at least one of lithium oxide, sodium oxide, and potassium oxide; wherein the loading of alkaline earth metal oxide in the catalyst is 0.01–10 wt%, the loading of alkali metal oxide is 0.05–5 wt%, and the remainder is the support.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

An anti-radiation glass and a preparation method and application thereof

PendingCN122301461ACeriumBoron trioxide
This invention discloses a radiation-resistant glass, its preparation method, and its application. The radiation-resistant glass comprises the following components in weight percentage: silicon dioxide 60%-70%; sodium oxide 13%-18%; zinc oxide 3%-6%; aluminum oxide 2%-6%; boron trioxide 1%-6%; strontium oxide 1%-3%; cerium dioxide 4.7%-5.5%; lanthanum trioxide / hafnium dioxide 1%-3%; and ammonium difluoride 0.3%-1%. The technical problem to be solved is to significantly improve the high-energy particle radiation protection and light transmittance of the glass by selecting a specific formulation.
Owner:CHINA BUILDING MATERIALS ACADEMY CO LTD +1

Breakdown-resistant multilayer ceramic substrate and method of making the same

ActiveCN120887709BPlasticizerSilicon dioxide
The present application relates to the technical field of ceramic substrate, and proposes a breakdown-resistant multilayer ceramic substrate and a preparation method thereof.The breakdown-resistant multilayer ceramic substrate comprises the following components by weight: 85-95 parts of alumina, 4-6 parts of a first sintering aid, 2-3 parts of a second sintering aid, 2-4 parts of a dispersing agent, 7-9 parts of a binder, 2-3 parts of a plasticizer, and 60-70 parts of water; the preparation method of the first sintering aid comprises the following steps: uniformly mixing silicon dioxide and strontium oxide, melting, and then performing ball milling after water quenching cooling to obtain the first sintering aid; and the second sintering aid is a rare earth oxide.Through the above technical solution, the problem of insufficient breakdown resistance of the multilayer ceramic substrate in the prior art is solved.
Owner:HEBEI DINGCI ELECTRONIC TECH CO LTD

Composite having radiation shielding function and method for producing composite having radiation shielding function

To develop a composite of a new constitution containing a powder having a radiation shielding function in a high content.SOLUTION: Molten aluminum is impregnated and filled into all voids of a preform made of a mixture containing one or more kinds of radiation shielding powders selected from gadolinium oxide, boron carbide, boron oxide, boron, barium sulfate, strontium oxide, tungsten, tungsten oxide, tungsten carbide, molybdenum, molybdenum oxide, iron powder, iron oxide powder, and ferrite powder and a liquid silica-based binder, the mixture containing the radiation shielding powders in a range of 3 to 85% in total; In the composite body having the radiation shielding function and the method for manufacturing the same, a liquid organic-inorganic sealing agent is impregnated and solidified to form the composite body, and a liquid silica-based binder has characteristics capable of forming a preform at a temperature at which the radiation shielding powder is not decomposed.SELECTED DRAWING: None
Owner:ADVANCE COMPOSITE CORP

Wear-resistant ceramic lining plate and preparation method thereof

ActiveCN122010538AResin microsphereHafnium
The invention belongs to the technical field of ceramic lining plate preparation, and particularly relates to a wear-resistant ceramic lining plate and a preparation method thereof. The wear-resistant ceramic lining plate is prepared from the following raw materials: aluminum oxide, a sintering aid, aluminum titanate, modified urea resin microspheres, hafnium boride, tungsten disilicide and a KH-550 silane coupling agent, and the sintering aid is a mixture of niobium pentoxide, strontium oxide, lanthanum oxide and magnesium oxide. According to the wear-resistant ceramic lining plate, aluminum oxide serves as a main raw material, a mixture of niobium pentoxide, strontium oxide, lanthanum oxide and magnesium oxide serves as a sintering aid, a compound of modified urea-formaldehyde resin microspheres, hafnium boride and tungsten disilicide serves as a reinforcing and toughening phase, aluminum titanate serves as a conditioning agent, and the raw materials have a synergistic effect; and it is ensured that the prepared ceramic lining plate has good wear resistance, hardness and toughness.
Owner:ZIBO HERUN MAKOTO MINING TECH CO LTD

Positive electrode active material for chloride ion battery, method for producing same, positive electrode mixture for chloride ion battery, and chloride ion battery

The present disclosure provides a novel positive electrode active material for a chloride ion battery, a method for manufacturing the same, a positive electrode mixture for a chloride ion battery comprising such a positive electrode active material, and a chloride ion battery comprising such a positive electrode mixture. The positive electrode active material for a chloride ion battery according to the present disclosure is strontium ruthenium oxide having a layered perovskite structure. A method for producing a positive electrode active material for a chloride ion battery according to the present disclosure comprises the steps of: (a) preparing a raw material mixture by mixing strontium carbonate and ruthenium oxide; (b) granulating the raw material mixture to form granules; and (c) firing the particles. The positive electrode mixture for a chloride ion battery according to the present disclosure contains the positive electrode active material for a chloride ion battery according to the present disclosure. The chloride ion battery of the present disclosure has a positive electrode active material layer, and the positive electrode active material layer contains the positive electrode mixture for the chloride ion battery of the present disclosure.
Owner:TOYOTA JIDOSHA KK

Method of ore processing

The invention relates to a method of providing an ore concentrate solution suitable for beneficiation processing, the method including the step of contacting an ore with one or more metal bases at elevated temperature. The one or more metal bases at elevated temperature may form a super-alkaline media that partially or fully dissolves the ore. Typically, the one or more metal bases are alkali metal bases, preferably chosen from lithium hydroxide, sodium hydroxide, potassium hydroxide, rubidium hydroxide or caesium hydroxide, or alkaline earth bases, preferably chosen from calcium hydroxide, barium hydroxide or strontium hydroxide. The one or more metal bases at elevated temperature may form a super-alkaline media that partially or fully dissolves the ore.
Owner:ELEMENT ZERO PTY LTD

Chromium-free iron-based gas phase fluorination catalyst as well as preparation method and application thereof

The invention provides a chromium-free iron-based gas phase fluorination catalyst as well as a preparation method and application thereof, and relates to the technical field of fluorine chemical industry. Based on 100 parts by mass of a carrier, the catalyst comprises 20-40 parts by mass of fluoride of iron; 5-15 parts by mass of a first auxiliary agent, wherein the first auxiliary agent comprises metal fluorides of one or more elements selected from titanium, tin and antimony; 5-10 parts by mass of a second auxiliary agent, wherein the second auxiliary agent comprises one or more of calcium peroxide, strontium peroxide, magnesium peroxide, potassium permanganate, zinc peroxide and sodium percarbonate; 1-3 parts by mass of a binder; and 100 parts by mass of a carrier. A proper amount of the specific second auxiliary agent is added into the catalyst, so that the catalyst can be decomposed at a proper temperature to release heat and generate oxygen, the oxygen can be provided through decomposition of the second auxiliary agent in the fluorination reaction process, carbon deposition on the catalyst is eliminated in situ, and the service life of the catalyst is prolonged; the catalyst is free of chromium element, non-toxic and environment-friendly; the raw materials are easily available, and the cost advantage is prominent.
Owner:CHENJU (SUZHOU) SCI & TECH DEV CO LTD

High imaging resolution optical glass blanks for medium-free holographic imaging elements

ActiveCN120607367BHolographic imagingCerium
The application discloses a high imaging resolution optical glass blank for a medium-free holographic imaging element, and particularly relates to the field of optical glass blanks, and comprises the following components in mass fraction: 100-125 parts of silicon dioxide, 12-25 parts of boron oxide, 10-18 parts of sodium oxide, 5-12 parts of aluminum oxide, 6-15 parts of strontium oxide, 2-6 parts of magnesium oxide, 1-4 parts of calcium oxide, 0.8-2.5 parts of cerium oxide and 0.2-1.0 parts of praseodymium oxide. The rare earth ion doping structure formed by the cerium oxide and the praseodymium oxide is embedded in the silicon-oxygen-boron-oxygen network structure formed by the silicon dioxide and the boron oxide during the glass melting process, and a group of valence state trapping energy structures are formed. The free state ion migration inhibition network formed by the rare earth ion trapping energy structure and the limited skeleton mechanism is constructed, so that the nonlinear amplification problem that the pattern boundary is blurred and misread due to the high-frequency scattering induced by trace impurities in the prior art is solved.
Owner:江西像航科技有限公司 +2

Samarium monatomic and strontium-doped neodymium oxide composite catalyst and preparation method thereof, nonyl phenol electrochemical sensor and application thereof

The invention discloses a samarium monatomic and strontium-doped neodymium oxide composite catalyst and a preparation method thereof, a nonylphenol electrochemical sensor and application thereof. The preparation method of the composite catalyst comprises the following steps: adding resorcinol, a formaldehyde solution and Sm (NO3) 3.6 H2O into an absolute ethyl alcohol-based colloidal suspension to carry out sol-gel treatment, and carrying out carbonization and etching to obtain Sm-SAC; the preparation method comprises the following steps: dropwise adding a first solution containing strontium hydroxide and neodymium nitrate hexahydrate into a second solution containing 1, 2, 3-triazole, trimesic acid and polyvinylpyrrolidone to prepare a Sr-Nd bimetallic precursor, annealing to obtain strontium-doped neodymium oxide, adding the Sm-SAC and the strontium-doped neodymium oxide into water, and carrying out ultrasonic dispersion, centrifugation, washing and drying to obtain the composite catalyst. The composite catalyst provided by the invention has strong adsorption capacity, efficient electrocatalytic oxidation activity, excellent anti-interference capability and structural stability, and the sensor has high recovery rate, low signal attenuation and excellent reusability.
Owner:XIANGTAN UNIV +2

Breakthrough-resistant multilayer ceramic substrate and preparation method thereof

ActiveCN120887709APlasticizerSilicon dioxide
The invention relates to the technical field of ceramic substrates, and provides an anti-breakdown multilayer ceramic substrate and a preparation method thereof. The breakdown-resistant multilayer ceramic substrate comprises the following raw materials in parts by weight: 85-95 parts of aluminum oxide, 4-6 parts of a first sintering aid, 2-3 parts of a second sintering aid, 2-4 parts of a dispersing agent, 7-9 parts of a binder, 2-3 parts of a plasticizer and 60-70 parts of water, the preparation method of the first sintering aid comprises the following steps: uniformly mixing silicon dioxide and strontium oxide, melting, quenching, cooling, and carrying out ball milling to obtain the first sintering aid; the second sintering aid is a rare earth oxide. According to the technical scheme, the problem of insufficient breakdown resistance of the multilayer ceramic substrate in the prior art is solved.
Owner:HEBEI DINGCI ELECTRONIC TECH CO LTD

High refractive index, low dispersion phosphate glass

PendingJP2026121506ALithium oxideRefractive index
We provide phosphate glass with a high refractive index and low density. [Solution] The glass composition contains phosphorus oxide (P2O5), niobia (Nb2O5), barium oxide (BaO), and potassium oxide (K2O) as essential components, and may optionally contain titania (TiO2), calcium oxide (CaO), sodium oxide (Na2O), lithium oxide (Li2O), bismuth oxide (Bi2O3), strontium oxide (SrO), tungsten oxide (WO3), and other components, with the total of TiO2 + Nb2O5 being 1.0 mol% or more and 55.0 mol% or less. The glass can be characterized by a high refractive index at 587.56 nm at relatively low density at room temperature.
Owner:CORNING INC

Phosphate glasses with high refractive index and reduced dispersion

The glass composition includes phosphorus oxide (P2O5), niobium oxide (Nb2O5), barium oxide (BaO), and potassium oxide (K2O) as essential components, and can optionally include titanium oxide (TiO2), calcium oxide (CaO), sodium oxide (Na2O), lithium oxide (Li2O), bismuth oxide (Bi2O3), strontium oxide (SrO), tungsten oxide (WO3), and other components. The glass can be characterized as having a high refractive index at 587.56 nm with a comparable room temperature low density.
Owner:CORNING INC

Ultraviolet photosensitive alkali-free glass substrate and method for manufacturing the same

The application discloses an ultraviolet photosensitive alkali-free glass substrate and a manufacturing method thereof, and belongs to the technical field of glass. The technical scheme is as follows: the components include the following components in percentage by mass: 62-72% of silicon dioxide, 8-12% of diboron trioxide, 10-16% of aluminum oxide, 2-5% of barium oxide, 1-3% of magnesium oxide, 1-3% of calcium oxide, 1-3% of strontium oxide, 2-5% of zinc oxide, 0.5-1.5% of tin dioxide and 2-4% of a photosensitive agent, wherein the photosensitive agent is silver fluoride and cerium tetrafluoride in a mass ratio of (1-2):(1-2). The application improves the through-hole manufacturing efficiency and precision, reduces the production cost, and is expected to promote the further development of semiconductor packaging technology.
Owner:SICHUAN SHUWANG CHENSHENG NEW MATERIALS CO LTD

Deposition of silicon nitride with enhanced selectivity

The use of selective deposition of silicon nitride can eliminate conventional patterning steps by allowing silicon nitride to be deposited only in selected and desired areas. Using a silicon iodide precursor alternately with a thermal nitrogen source in an ALD or pulsed CVD mode, silicon nitride can be deposited preferentially on a surface such as silicon nitride, silicon dioxide, germanium oxide, SiCO, SiOF, silicon carbide, silicon oxynitride, and low k substrates, while exhibiting very little deposition on exposed surfaces such as titanium nitride, tantalum nitride, aluminum nitride, hafnium oxide, zirconium oxide, aluminum oxide, titanium oxide, tantalum oxide, niobium oxide, lanthanum oxide, yttrium oxide, magnesium oxide, calcium oxide, and strontium oxide.
Owner:ENTEGRIS INC

A photothermal glass and a preparation method thereof

The application discloses a kind of photothermal glass and preparation method thereof, it is related to photothermal glass technical field, including main body glass and trace additive;Main body glass includes the following components according to mass percentage:Si O2 58.8~63.4%;A l2O3 12.4~14.6%;Na2O 9.8~13.6%;K2O 4.6~6.8%;MgO 5.6~7.4%;ZrO2 0.6~1.2%;B2O3 0~0.3%;And Fe2O3<0.01%;Trace additive is one or more in CaO, SrO, BaO, ZnO.The trace additive (calcium oxide, barium oxide, strontium oxide, zinc oxide) in the application can also promote the melting of glass raw materials.The photothermal glass prepared by the application has a thermal stability greater than 210℃, an acid resistance level of H1, and an alkali resistance level of A1.
Owner:SICHUAN HONGKE INNOVATION TECH CO LTD

Strontium salt and calcium salt composite chemical conversion liquid for magnesium alloy, preparation method of strontium salt and calcium salt composite chemical conversion liquid and preparation method of conversion film

PendingCN121593049AMetallic material coating processesCalcium bicarbonateMg alloys
The invention relates to the technical field of magnesium alloy surface treatment, in particular to strontium salt and calcium salt composite chemical conversion liquid for magnesium alloy, a preparation method and a preparation method of a conversion film. The method comprises the following steps: firstly, preparing a saturated calcium bicarbonate solution and a saturated strontium hydroxide solution; sequentially adding a saturated strontium hydroxide solution and hydrogen peroxide into water to obtain a strontium hydroxide preparation solution; preparing a sodium bicarbonate solution; mixing the saturated calcium bicarbonate solution, the strontium hydroxide preparation solution and the sodium bicarbonate solution to obtain a strontium salt and calcium salt composite chemical conversion solution; and the magnesium alloy part to be treated is placed in the strontium salt and calcium salt composite chemical conversion liquid, and after no bubble emerges, the magnesium alloy part subjected to surface treatment is taken out, washed with water and blow-dried. The method is low in cost, low in energy consumption and environmentally friendly, and the prepared composite conversion film composed of SrCO3, CaCO3, MgCO3, MgO, Al2O3 and other phases is uniform, fine, smooth and flat and has excellent corrosion resistance.
Owner:山西银光华盛镁业股份有限公司

A process for the production of acetonitrile

PendingCN122127246AMolecular sieve catalystsPreparation by ammonia-carboxylic acid reactionLithium oxidePtru catalyst
This application discloses a method for producing acetonitrile, comprising the following steps: in a reactor, contacting an acetate, ammonia, and a catalyst to react and obtain acetonitrile; wherein the acetate is selected from at least one of methyl acetate, ethyl acetate, propyl acetate, butyl acetate, and cyclohexyl acetate; wherein the catalyst is composed of a support and a divalent transition metal oxide, an alkaline earth metal oxide, and an alkali metal oxide supported on the surface of the support; wherein the divalent transition metal oxide is selected from at least one of manganese oxide, ferrous oxide, cobalt oxide, nickel oxide, copper oxide, and zinc oxide; wherein the alkaline earth metal oxide is selected from at least one of magnesium oxide, calcium oxide, strontium oxide, and barium oxide; and wherein the alkali metal oxide is selected from at least one of lithium oxide, sodium oxide, and potassium oxide.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Glass frit for solar cell front paste and paste, monocrystalline silicon solar cell

The application discloses a glass frit for a single-crystal silicon solar cell front paste, a paste, and a single-crystal silicon solar cell. The glass frit comprises 1-30 mol% of lithium oxide, 5-40 mol% of bismuth oxide, 5-40 mol% of lead oxide, 1-40 mol% of silicon oxide, and X, wherein X is any one or a mixture of several of copper oxide, cesium oxide, rubidium oxide, sodium oxide, potassium oxide, aluminum oxide, magnesium oxide, strontium oxide, tin oxide, zinc oxide, or tungsten oxide, and the molar content of any one of the oxides in X is 1-10 mol%, and the content of X is not more than 50 mol%. The conductive paste prepared by using the glass frit contains a lead-bismuth-silicon oxide glass system, the system has enhanced resistance to acetic acid attenuation, ensures a sintering window at a high-temperature fast-firing sintering temperature, and X has strong corrosiveness, so that a lower contact area can be obtained. The conductive paste has high resistance to acetic acid in a wide sintering window.
Owner:CHANGZHOU JUHE NEW MATERIAL CO LTD

A multi-component oxide-doped indium zinc oxide target material, a method for preparing the same, and an application thereof

The application discloses a kind of multi-element oxide doped indium zinc oxide target material and preparation method and application thereof, and the doped indium zinc oxide target material of the application includes the following mass percentage components: the content of indium oxide is 80.0%~88.6%;The content of zinc oxide is 10.9%~15.8%, the content of strontium oxide is 0.2%~1.8%, the content of bismuth oxide is 0.2%~0.6%, the content of vanadium oxide is 0.4%~1.2%, and the sum of each component is 100%.The target material is prepared by adding strontium oxide, bismuth oxide and vanadium oxide powder, mixing ball milling, pressing forming and sintering, the density of the target material is improved, the resistivity of the target material is reduced, the grain size of the sintered target material is uniform, the strength of the target material is improved, and the performance of the target material is effectively improved.The electrical stability of the thin film and the thin film mobility are effectively improved by sputtering the prepared multi-element oxide doped IZO target material.
Owner:ZHONGSHAN ZL ADVANCED MATERIALS TECHNOLOGY

A strontium hydroxide precipitation high-temperature calcination device

The application discloses a strontium hydroxide precipitation high-temperature calcining device, which comprises a mounting frame, a furnace cylinder horizontally arranged on the mounting frame, feed inlets and discharge outlets arranged on the two sides of the furnace cylinder respectively, an air feed frame vertically arranged on one side of the upper end surface of the mounting frame, one end of the air feed frame fixed to the furnace cylinder, a guide chute arranged on the air feed frame and communicated with the feed inlet of the furnace cylinder, a combustion machine installed on the upper end surface of the furnace cylinder, a heat exhaust pipe vertically connected to one side of the furnace cylinder away from the combustion machine, a material rotating control assembly arranged in the furnace cylinder with the same center, a material storage seat connected to the discharge outlet of the furnace cylinder through an adjusting pipe, a material box arranged on one side of the mounting frame, one end of the material storage seat communicated with the material box, a switching pipe communicated with the material box, one end of the switching pipe communicated with the combustion machine through a heat recovery pipe.
Owner:CHONGQING NEWCENT NEW MATERIALS TECH CO LTD

A strong mixing ball mill device for permanent magnet ferrite pre-sintering material

PendingCN122352408AAir pumpSteel ball
This invention relates to a high-intensity mixing ball milling device for pre-calcined permanent magnet ferrite materials, belonging to the field of powder mixing technology. It includes a base, support frame, ball mill cylinder, and cover. The ball mill cylinder is equipped with a partition plate driven by an adjustment component, allowing adjustment of the volume of each grinding zone according to the material quantity. The cylinder also contains multiple sets of actuating components monitored by cameras. These actuating components can move along a moving rod, and their ends are equipped with an arc-shaped push plate and a fixed ring with a flat groove connected to a micro air pump. During operation, the partition plate position is first adjusted to match the grinding space with the material quantity. During grinding, the camera monitors the distribution and agglomeration of the steel balls and controls the movement of the actuating components. The arc-shaped push plate disperses the accumulated steel balls, or the directional air jet from the fixed ring breaks up agglomerates of materials such as strontium oxide. This achieves adaptive grinding space, active adjustment of steel ball distribution, and online agglomeration breaking, effectively solving the problems of uneven grinding and insufficient mixing caused by changes in material quantity and powder agglomeration.
Owner:HUBEI DINGYI MAGNETIC MATERIAL TECH CO LTD

High-strength high-flatness glass substrate for chip packaging and method of manufacturing the same

The application provides a kind of high-strength high flatness glass substrate for chip packaging and a preparation method thereof, relating to the technical field of chip packaging glass, the raw material composition of the glass substrate includes silicon dioxide, aluminum oxide, boron oxide, magnesium oxide, calcium oxide, yttrium oxide, composite clarifying agent, reinforcing agent, surface modifier, thermal stabilizer;The composite clarifying agent is a mixture of sodium sulfate and antimony dioxide;The reinforcing agent is a mixture of zirconium oxide and titanium dioxide;The surface modifier is a mixture of zinc oxide and strontium oxide;The glass substrate is polished by polishing liquid: the raw material composition of the polishing liquid includes silicon oxide, aminotrimethylenephosphonic acid, composite dispersing agent, buffer, deionized water;The composite dispersing agent is a mixture of sodium polyacrylate and sodium dodecylbenzenesulfonate.The glass substrate for chip packaging prepared by the application has excellent mechanical strength and flatness.
Owner:LONGGUANGTIANXU SOLAR ENERGY ZHUCHENG

Catalyst for methane reforming and preparation method thereof

Disclosed is a method for preparing a catalyst for methane reforming, comprising the steps of: preparing a solution containing a precursor of a perovskite-based compound represented by the above Chemical Formula 1; and coating a support with the solution and performing heat treatment to obtain a catalyst, wherein a precursor of the perovskite-based compound represented by the above chemical formula 1 includes strontium hydroxide.
Owner:LG CHEM LTD

Wear-resistant ceramic liner and method of making same

ActiveCN122010538BResin microsphereHafnium
This invention belongs to the field of ceramic liner preparation technology, specifically relating to a wear-resistant ceramic liner and its preparation method. The wear-resistant ceramic liner is composed of the following raw materials: alumina, sintering aid, aluminum titanate, modified urea-formaldehyde resin microspheres, hafnium boride, tungsten disilicide, and KH-550 silane coupling agent. The sintering aid is a mixture of niobium pentoxide, strontium oxide, lanthanum oxide, and magnesium oxide. The wear-resistant ceramic liner of this invention uses alumina as the main raw material, a mixture of niobium pentoxide, strontium oxide, lanthanum oxide, and magnesium oxide as the sintering aid, a composite of modified urea-formaldehyde resin microspheres, hafnium boride, and tungsten disilicide as the reinforcing and toughening phase, and aluminum titanate as a modifier. The synergistic effect of the raw materials ensures that the prepared ceramic liner has good wear resistance, hardness, and toughness.
Owner:ZIBO HERUN MAKOTO MINING TECH CO LTD

Preparation and application of strontium fumarate

The invention relates to the fields of chemical industry, pyrotechnic compositions, fireworks and crackers and the like, and relates to preparation of strontium fumarate serving as a novel compound material with coloring agent and reducing agent effects, and preparation and application of the material in the fields of pyrotechnic compositions, fireworks and crackers and the like. The preparation method comprises the following steps: mixing fumaric acid and strontium carbonate or strontium oxide or strontium hydroxide, and heating an aqueous solution to prepare strontium fumarate; furthermore, strontium fumarate can be fully mixed with selected other substances to prepare a red pyrotechnic composition, and the red pyrotechnic composition can be applied to fireworks and crackers and other fields; in addition, strontium fumarate is mixed with other selected substances, a small amount of perchlorate can be selectively added to be fully mixed to prepare non-pyrotechnic composition or pyrotechnic composition substances in various geometrical shapes, and then the substances are placed in handheld, ground and air (including an aircraft) devices or equipment to be used for preparing the non-pyrotechnic composition or pyrotechnic composition. The non-pyrotechnic composition and the pyrotechnic composition substance can be ignited according to the electronic heating principle, and red light is emitted through combustion for color development.
Owner:毛建春

Method for high-value conversion of silicon slag into calcium aluminum silicate radiation refrigeration filler and application

The invention relates to the technical field of radiation refrigeration materials, in particular to a method for high-value conversion of silicon slag into calcium aluminum silicate radiation refrigeration filler and application, and the method comprises the following steps: S1, mixing silicon slag, aluminum hydroxide, strontium oxide or cerium oxide with cyclohexane according to a weight ratio of (10: 5: 1)-(5: 3: 1), and carrying out ball milling treatment at a rotating speed of 500-800r / min for 0.5-3h, drying to obtain a reaction precursor; s2, putting the precursor powder obtained in the step S1 into a muffle furnace, and sintering for 3-12 hours at the temperature of 800-1300 DEG C to prepare a calcium aluminum silicate reaction product; and S3, grinding and sieving the reaction product obtained in the S2 to obtain powder with the particle size of 800-2800 meshes, and drying to obtain the calcium aluminum silicate radiation refrigeration powder filler. The defects that an existing radiation refrigeration material is complex in process and high in cost are overcome, and high-value conversion and utilization of solid waste are achieved.
Owner:KUNMING UNIV OF SCI & TECH