134 results about "Silicate glass" patented technology

The application discloses a kind of ship super-long anticorrosion special nano powder coating, preparation method and application, belong to ship heavy anticorrosion material technical field.The preparation method of the ship super-long anticorrosion special nano powder coating is as follows: epoxy resin, graphene modified epoxy resin, core-shell structure ZnO@SiO2, modified 2,5-dimercapto-1,3,4-thiadiazole, borosilicate glass powder, flaky boron nitride, silane coupling agent modified silica, phenolic amine curing agent, 2-ethyl-4-methylimidazole, fumed silica, defoaming agent, ultraviolet absorber, high-temperature pigment are put into stirrer and stirred for 20-30min, then melt extrusion is carried out through double screw extruder, the extrusion temperature is 90-110 DEG C, grinds and sieves, and the ship super-long anticorrosion special nano powder coating is obtained.The coating prepared by the application has good anticorrosion performance and can be applied in the field of ship metal surface corrosion protection.

The invention discloses fluorescent glass ceramic, a preparation method thereof and a luminescent device, and belongs to the technical field of luminescent materials. The fluorescent glass ceramic comprises glass powder and fluorescent powder, the glass powder comprises zinc borosilicate glass powder; the zinc borosilicate glass powder comprises the following components in percentage by mole: 5%-20% of SiO2, 10%-35% of B2O3, 20%-65% of ZnO, 0.3%-15% of P2O5, 2%-20% of RO and 0.1%-15% of R2O, RO is selected from at least one of MgO, CaO, SrO and BaO, and R2O is selected from at least one of Li2O, Na2O and K2O; the fluorescent powder comprises blue-green fluorescent powder; the emission peak wavelength of the blue-green fluorescent powder is 480-510 nm; based on the total mass of the glass powder and the fluorescent powder, the mass percentage content of the glass powder is 30-80%, and the mass percentage content of the fluorescent powder is 20-70%. The fluorescent glass ceramic is high in reliability and can be applied to high-power light emitting, a light emitting device formed by combining the fluorescent glass ceramic and a proper light source can provide an accurate azure light emitting effect, and the requirements in application scenes with harsh color requirements are met.

A polishing liquid for polishing undoped silicate glass, the polishing liquid having a pH of 3.0 or more. A polishing method including a step of polishing a surface to be polished of a member to be polished containing undoped silicate glass by using the above-described polishing liquid. A method for manufacturing a component, including obtaining a component by using a polished member polished by the above-described polishing method.

The invention discloses a low-dielectric low-loss high-strength borosilicate glass ceramic composite material and a preparation method thereof, and belongs to the technical field of borosilicate glass ceramic composites.The low-dielectric low-loss high-strength borosilicate glass ceramic composite material is prepared from, by weight, 70% of low-alkali borosilicate glass ceramics with the low borosilicate ratio, 29% of Al2O3 and 1% of Bi2O3. The preparation method comprises the following steps: preparing low-alkali borosilicate glass ceramics with a high borosilicate ratio, melting the low-alkali borosilicate glass ceramics with the high borosilicate ratio and amorphous SiO2 at a set temperature to obtain the required low-alkali borosilicate glass ceramics with the low borosilicate ratio, and finally mixing and ball-milling the crushed and ground low-alkali borosilicate glass ceramics with Al2O3 and Bi2O3 to obtain the low-alkali borosilicate glass ceramics with the low borosilicate ratio. And finally, the borosilicate glass ceramic composite material is sintered at the temperature of 880-900 DEG C. The borosilicate microcrystalline glass ceramic composite material is low in dielectric, low in loss and high in strength.

Method for producing a shatter-resistant membrane glass (2) of a glass component of a measuring half-cell (1) of an analyte-sensitive sensor, comprising: - providing at least one membrane glass (2) of a sensor blown onto a shaft (3), which consists of a sodium- and lithium-containing glass, preferably sodium- and lithium silicate glass, or of a lithium-containing glass, preferably lithium silicate glass, or comprises one of these materials; - bringing the at least one membrane glass (2) blown onto a shaft (3) into contact with a pickling solution containing sodium ions, preferably a sodium acetate or sodium nitrate solution or a melt containing sodium ions; - heating the membrane glass (2) at a temperature of 200°C-500°C, preferably 300-450°C, more preferably 400-450°C for 10-20 minutes, wherein the membrane glass (2) is ion-sensitive.

A method of measuring temperature includes positioning an optical fiber in contact with an object or in an environment having a temperature to be determined, where the optical fiber comprises a core surrounded by a cladding; the core comprises an alkaline-earth fluorosilicate glass including defects, and the cladding comprises a silica glass. Infrared light is supplied to the optical fiber, thereby electronically exciting the defects. Green light emitted from the defects is detected, and an intensity value of the green light is obtained and converted to a temperature value for the optical fiber, whereby the temperature of the object or environment is determined. The green light may be detected along a length of the optical fiber, and a plurality of intensity values may be converted to a plurality of temperature values along the fiber length, thereby obtaining a distributed measurement of the temperature of the object or environment.

The present invention relates to a method for producing silicate glass from oxide-based waste comprising alkalis and earth-alkalis at a level of equal to or greater 5wt%, preferably 10wt%, preferably 15wt%, more preferably 20wt%, even more preferably 25% by weight of the total composition of the oxide-based waste; comprising at least one metal and / or metalloid elements (M) selected from the group consisting of Fe, Co, Cr, Ni, V, Sb, Zn, Mn, Sn, Bi, Pb, Ag, Cu, W, Nb, Mo and mixtures thereof. The amount of at least one metal and / or metalloid elements (M), has been lowered by the following steps : a) melting the oxide-based waste to obtain a oxide melt; b) performing a chemical reaction to reduce the oxide melt to precipitate a metal phase enriched in the metal and / or metalloid elements; c) separating at least a part of the metal phase from the oxide melt to obtain a purified oxide melt; d) preferably, performing an oxidation treatment on the purified oxide melt to obtain a highly purified oxide material; and e) using the purified oxide melt and / or preferably the highly purified oxide material, as component for silicate glass.

The invention discloses a neutral ramming material for an intermediate frequency furnace, and belongs to the technical field of steel smelting. Comprising the following raw materials in parts by weight: 35-40 parts of microporous sintered corundum particles with the particle size of 3-5mm, 35-40 parts of microporous sintered corundum particles with the particle size of 1-3mm, 20-25 parts of magnesium aluminate spinel particles with the particle size of 1-3mm, 9-11 parts of activated aluminum oxide micro powder, 5-7 parts of modified cordierite fine powder, 1-2 parts of pretreated boron nitride, 0.5-1.5 parts of nano aluminum oxide and 0.2 part of nano aluminum oxide. 0.4 part by weight of zinc borosilicate glass powder, 0.6-0.8 part by weight of high-temperature organic silicon resin and 0.05-0.1 part by weight of anti-burst fiber. The prepared neutral ramming material for the intermediate frequency furnace has good compression strength, thermal shock resistance and slag resistance.

The invention relates to the technical field of fireproof materials, and discloses a fireproof plugging material and a preparation method thereof, and the fireproof plugging material comprises the following components by mass: 20-40 parts of a metal oxide enriched phosphate gelling system, 10-25 parts of an expansion main body, 5-15 parts of a synergistic fluxing and heat absorbent, 30-50 parts of an in-situ reactive aggregate, and 1-5 parts of reinforced fibers. According to the preparation method, a four-stage chain reaction system of expansion, synergistic fluxing, volatilization inhibition and in-situ welding is constructed, an oxygen-enriched phosphate gelling system provides BO volatilization inhibition capability and a POprecursor, boric acid provides a low-temperature endothermic effect and a BO precursor, the oxygen-enriched phosphate gelling system and the boric acid form a phosphorus borate eutectic melt at the temperature of 600-900 DEG C, and the low-temperature heat absorption effect and the BO precursor form a low-temperature heat absorption effect and a low-temperature heat absorption effect at the temperature of 600-900 DEG C; and the melt further reacts with wollastonite to generate a calcium-magnesium-boron-phosphorus-silicate glass phase, and a loose carbon layer obtained after expandable graphite is expanded is welded, so that the core contradiction that high expansion rate and high-temperature residual strength cannot be considered at the same time in the prior art is effectively solved.

The invention relates to the technical field of glass strengthening, in particular to a low-temperature ion exchange strengthening process method for high-strength glass. According to the technical scheme provided by the invention, the method comprises the following steps: S1, pretreatment of a glass substrate: carrying out ultrasonic cleaning and surface activation treatment on soda-lime silicate glass; s2, low-temperature ion exchange: immersing the pretreated glass into a salt bath containing composite molten salt at 350-420 DEG C, and meanwhile, applying a gradient electric field to treat for 8-14 hours; s3, cooling: cooling the glass from the exchange temperature to 80 DEG C or below by adopting an aerial fog two-phase gradient cooling mode; s4, washing and drying to obtain tempered glass; through the process method, the process time is greatly shortened, the energy consumption is reduced, the performance is remarkably improved, and the thermal deformation risk of the glass is reduced.

The present application relates to the technical field of protecting slag, in particular to a special protecting slag for non-oriented high-grade silicon steel for new energy automobile motor, which is composed of the following raw materials: acid leaching wollastonite, glass powder, lithium-loaded hydrotalcite, zirconium oxide, silicon carbide and magnesia.The present application removes calcium impurities in wollastonite through acid leaching treatment to obtain high-activity porous SiO2, so as to quickly form a homogeneous low-melting-point silicate glass phase in the molten slag, effectively avoid the generation of high-viscosity calcium aluminum yellow longite, and keep the molten slag viscosity stable; lithium ions and CO2 gas are released from lithium-loaded hydrotalcite in the decomposition process, Li + further reduces the viscosity by charge balance depolymerization of the silicon-oxygen network; in addition, the pure base of acid leaching wollastonite enhances the viscosity reduction efficiency of Li + , and improves the ability of the slag layer to resist the impact of steel flow.

The invention belongs to the technical field of silicate glass, and relates to low-expansion silicate glass and a preparation method thereof. Comprising the following steps: preheating a reaction precursor, a carrier gas and an oxidation reaction gas to 900-1200 DEG C; wherein the reaction precursor comprises a silicon-containing compound and a titanium-containing compound; and carrying out plasma chemical vapor deposition on the preheated reaction precursor, the carrier gas and the oxidation reaction gas in vacuum at the temperature of 1200-1800 DEG C to prepare the low-expansion silicate glass. The preparation method provided by the invention can effectively solve the problem that the thermal expansion coefficient of the current silicate glass is relatively high, so that the application requirements of the silicate glass in extremely sensitive fields such as optical fiber coating, precision optics, extreme ultraviolet lithography, aerospace and the like are met.

The application relates to the field of glass strengthening technology, in particular to a low-temperature ion exchange strengthening process method for high-strength glass. The process method is as follows: S1, glass substrate pretreatment: ultrasonic cleaning and surface activation treatment are carried out on a sodium-calcium silicate glass; S2, low-temperature ion exchange: the pretreated glass is immersed into a salt bath tank containing 350-420 DEG C composite molten salt, and a gradient electric field is applied to the glass for 8-14 hours; S3, cooling: the glass is cooled from the exchange temperature to below 80 DEG C by adopting an air-mist two-phase gradient cooling mode; and S4, water washing and drying to obtain strengthened glass. By the process method, the process time is greatly shortened, the energy consumption is reduced, the performance is obviously improved, and the risk of glass thermal deformation is reduced.

A device structure may be provided by: forming semiconductor devices and metal interconnect structures formed within dielectric material layers over a semiconductor substrate; forming metal pads in a topmost layer of the dielectric material layers; forming a passivation layer stack including a first dielectric diffusion barrier layer, a silicate glass layer, a second dielectric diffusion barrier layer, and a polymer layer; forming openings through the passivation layer stack over the metal pads; forming die bump structures on the metal pads; and dicing a wafer including the passivation layer stack, the dielectric material layers, and the semiconductor substrate along dicing channels into a plurality of semiconductor dies.

The application relates to a lithium-aluminum silicate glass, a preparation method thereof and a cover plate glass. The preparation method of the lithium-aluminum silicate glass comprises the following steps: performing gradient temperature preheating treatment on a semi-finished glass to prepare a first intermediate body; performing first chemical strengthening treatment on the first intermediate body to prepare a second intermediate body; and performing second chemical strengthening treatment on the second intermediate body to prepare the lithium-aluminum silicate glass; wherein the gradient temperature preheating treatment satisfies that the temperature rising rate is 5.5 DEG C / min to 12.5 DEG C / min, the temperature rising time is 25 min to 45 min, and the terminal temperature is 200 DEG C to 400 DEG C. The preparation method can effectively improve the surface compressive stress and ion exchange layer depth of the lithium-aluminum silicate glass, and makes the lithium-aluminum silicate glass show good impact resistance and good drop resistance.

A silicate glass comprising a Group 4 oxide, its use for joining and sealing materials, a sealing joint formed of the silicate glass, a method for joining and sealing materials with the silicate glass and a capacitive diaphragm gauge comprising the silicate glass to join and seal a membrane to a housing.

The application provides a method for selectively separating and recovering boron from boron-containing aluminosilicate glass, which comprises the following steps: (1) ball milling the boron-containing aluminosilicate glass, slurryizing the material after roasting treatment by adding water, mixing the slurryized material with sulfuric acid, and obtaining a boron-containing leaching solution after pressure acid leaching treatment; (2) adjusting the pH of the boron-containing leaching solution, adding sodium carbonate to carry out magnesium removal treatment, and obtaining a sodium borate solution; (3) carrying out concentration and crystallization treatment on the sodium borate solution, and obtaining borax. The method adopts the processes of ball milling-transformation roasting-pressure acid leaching-carbonation magnesium removal-evaporation crystallization, recovers boron in the form of borax from the glass, synchronously recovers magnesium carbonate as a byproduct, and realizes selective separation and recovery of boron, magnesium and sodium elements in the glass powder.

To provide: a glass sheet having soda-lime-silica glass composition with a high visible light transmittance (LtC) of at least 89% with a dominant wavelength (DW) from about 490 to 505 nanometers and purity (Pe) of 1% or less for control of thickness of about 5.66 mm; and methods of making the same.SOLUTION: The glass composition comprises a low iron raw material, a total iron oxide (Fe2O3) from 0.02 to 0.06 wt.%, ferrous (FeO) from 0.006 to 0.02 wt.%, redox of (FeO / Fe2O3) from about 0.30 to 0.55, Cr2O3 from about 0.3 to 10 ppm, TiO2 from about 50 to 500 ppm, SnO2 from about 10 to 500 ppm, and a critical amount from about 0.10 to 0.25 wt.% of SO3. The low content of iron oxide is achieved by the partial substitution of regular raw materials by low iron raw materials, with a complete substitution of regular dolomite with a low iron dolomite with a maximum content of 0.020 wt.% Fe2O3.SELECTED DRAWING: None

The invention provides optical glass which comprises the following components in percentage by weight: 20-32% of SiO2; 21 to 34 percent of TiO2; 8 to 20 percent of Nb2O5; baO: greater than 10% but less than or equal to 22%; 8.5% to 20% of Na2O; and 0.1 to 9 percent of Bi2O3. Through reasonable component design, the optical glass with the refractive index of 1.81-1.88 and the Abbe number of 20-27 is obtained by adopting a silicate glass system, the raw material cost and the production cost of the optical glass are relatively low, and the requirement of environmental protection is met.

This invention discloses a microchannel plate glass and its preparation method, relating to the field of special glass materials technology. The microchannel plate glass includes a skin glass and a core glass. The skin glass includes P2O5, V2O5, BaO, La2O3, Li2O+Na2O+K2O, ZrO, Al2O3 and Al(OH)3, PbO, and Fe2O3. The core glass includes P2O5, ZnO, Al2O3 and Al(OH)3, SiO2, CaO+MgO, and BaO. This invention overcomes the shortcomings of traditional lead-containing silicate glass as a substrate material for MCP microporous arrays. Furthermore, the microchannel plate made of semiconductor glass does not require hydrogenation heat treatment and does not exhibit this "cation feedback" phenomenon. Compared to microchannel plates made of ordinary glass, the bulk conductivity microchannel plate can maintain stable performance over a long period. By screening specific material components and optimizing the ratio of each component, the skin glass and core glass can simultaneously possess a stable network framework and a high softening temperature, while achieving a precise match between their coefficients of thermal expansion and high-temperature viscosity coefficients.

A device structure includes at least one alternating stack of respective insulating layers and respective electrically conductive layers; at least one retro-stepped dielectric material portion; a memory opening vertically extending through each layer within the at least one alternating stack; a memory opening fill structure located in the memory opening and including a vertical stack of memory elements; and a contact via structure including a laterally bulging portion in contact with a first electrically conductive layer, an upper portion, and a lower portion. In one embodiment, each insulating layer may comprise a respective carbon-doped silicate glass layer. In one embodiment, second electrically conductive layers that underlie the first electrically conductive layer may be laterally offset from the lower portion by a greater lateral offset distance than an outermost surface of the laterally bulging portion.

The present application relates to the field of glass, in particular to an aluminosilicate glass composition and a strengthening process thereof, the aluminosilicate glass composition comprising: SiO2, Al2O3, Na2O, K2O, Li2O, MgO, BaO, P2O5, B2O3, Y2O3, Sc2O3 and La2O3. The aluminosilicate glass composition of the present application optimizes the glass network structure by precisely controlling the proportion of each component, and improves its stability, hardness and wear resistance. At the same time, the introduction of rare metal oxides such as Y2O3, Sc2O3 and La2O3 can fill the glass network gap during glass strengthening, enhance the density, reduce the glass surface defects, effectively inhibit the crack propagation, significantly improve the impact strength and toughness of the glass, and also can greatly increase the depth of compressive stress layer and surface compressive stress, further improve the comprehensive performance of the glass.

This invention provides a method and application for separating and recovering tungsten from spent denitrification catalysts, relating to the field of resource utilization technology for spent denitrification catalysts. The method includes the following steps: (1) mixing spent denitrification catalyst, silica, and alkali metal salts to form a mixture; (2) smelting the mixture, with the smelting temperature procedure as follows: first heating to 800-900℃ and holding for 30-60 min; then heating to 1100-1200℃ and holding for 40-90 min; then heating to 1300-1400℃ and holding for 30-60 min to obtain a melt; (3) cooling the melt, collecting and recovering sodium tungstate. This invention, through a segmented temperature-controlled smelting process and utilizing an alkali metal silicate glass melt medium, achieves the harmless treatment of spent denitrification catalysts and the efficient recovery of tungsten, effectively improving the tungsten recovery rate, and has good development prospects and industrial application value.

The invention relates to a silicate glass comprising 35 to 45% by weight of silica (SiO2), up to 15% by weight of molybdenum trioxide (MoO3), 4 to 7% by weight of zirconium dioxide (ZrO2), 1 to 3.5% by weight of phosphorus pentoxide (P2O5), and 14 to 28% by weight of one or more alkali metal oxides and / or one or more alkaline earth metal oxides, with respect to the total weight of the glass. The invention also relates to a method for increasing the solubility of molybdenum in a glass melt.

The application belongs to the technical field of fiber preparation, and particularly relates to a modified basalt fiber YB-2400 and a preparation method thereof, which comprises the following steps: basalt raw material crushing and screening, blending with silicate glass, modification after removing iron oxides through high-temperature reduction and magnetic separation, high-temperature melting in a melting pool, homogenization in a homogenization pool, high-speed wire drawing, and surface infiltration treatment; the basalt particles, silicate fiber powder and modifiers are arranged in the raw material, and iron removal treatment, homogenization treatment, high-speed wire drawing, surface infiltration and other treatment steps are arranged, so that the iron oxides are effectively removed; in combination with blending modification and surface treatment, the mechanical strength, elastic modulus, toughness and corrosion resistance of the basalt fiber are significantly improved; the preparation process is simple and can be continuously produced, and the cost is controllable; the modified continuous basalt fiber prepared by the application has excellent performance, can be widely applied to high-end building materials, automobile parts, corrosion-resistant pipes, special composite materials and other fields, and has good industrialization popularization prospect.

This invention belongs to the field of ceramic materials technology, specifically relating to ceramic fuse shells and their preparation method. The preparation method includes: ball milling a mixture of calcined α-alumina, borosilicate glass frit, γ-alumina, a composite grain bridging agent, a composite pore-sealing reinforcing agent, and deionized water; adjusting the pH to a neutral range; adding an aqueous solution containing polyvinyl alcohol and continuing mixing; sieving and spray drying to obtain granules; mixing with magnesium stearate and pressing into green bodies; placing the green bodies in a degreasing furnace; heating to different temperatures in stages under an air atmosphere and holding at those temperatures to complete degreasing; transferring the degreased green bodies to a sintering furnace; heating to a high temperature and holding at that temperature under a nitrogen protective atmosphere; and cooling in the furnace to obtain the finished ceramic shell. This invention, by introducing a composite grain bridging agent and a composite pore-sealing reinforcing agent, combined with staged degreasing and nitrogen atmosphere sintering, effectively improves the density, insulation performance, and bending strength of the shell, making it suitable for fuse applications.

A lithium silicate glass ceramic having lithium metasilicate as main crystal phase and having not more than 30 wt.-% of lithium metasilicate crystals and having the following components in the amounts indicated:ComponentWt.-%SiO271.0 to 82.0Li2O6.0 to 14.0MeI2O4.0 to 15.0Al2O32.0 to 10.0P2O50.5 to 7.0,wherein MeI2O is selected from Na2O, K2O, Rb2O, Cs2O and mixtures thereof, andwherein the molar ratio of SiO2 to Li2O is in the range of 2.5 to 5.0.

The invention provides a preparation method of a ceramic tile based on coal-based solid waste, and belongs to the technical field of production of environment-friendly ceramic tiles, and the preparation method comprises the following steps: adding sodium hydroxide and a silica sol aqueous solution into water glass to prepare a first silicate glass activation solution, mixing and ball-milling the first silicate glass activation solution and coal gangue, diluting the mixture with water, filtering and drying to obtain a clay-like material; sodium hydroxide and a silica sol aqueous solution are added into water glass, a second silicate glass activation solution is prepared, and the molar ratio of SiO2 to Na2O in the second silicate glass activation solution is larger than that in the first silicate glass activation solution; mixing and ball-milling the second silicate glass activation solution and fly ash, diluting the mixture with water, filtering and drying to obtain a feldspar-like material; the clay-like material, the feldspar-like material and the original coal-based solid waste are mechanically mixed and subjected to ball milling, a solid mixture is formed, and the ceramic tile is obtained after pressure forming and sintering. According to the invention, 100% replacement of the traditional ceramic raw material by the coal-based solid waste is realized, and the performance of the ceramic tile is improved.

The invention relates to the field of municipal sludge treatment, and particularly discloses a biomass fuel low in slagging rate and a production process thereof.The biomass fuel is prepared from, by weight, 20-40 parts of municipal sludge, 40-80 parts of bagasse, 0.5-2 parts of a flame accelerator, 5-15 parts of an ash content regulator, 3-8 parts of a binder, 1-5 parts of calcium phosphate and 1-2 parts of a heavy metal stabilizer. The calcium phosphate plays a role of a high-melting-point framework in a combustion system of the biomass fuel, and phosphate ions in the calcium phosphate can fix harmful alkali metal in a high-temperature stable mineral phase and prevent the harmful alkali metal from forming a low-melting-point silicate glass body with silicon, so that the aim of reducing the slagging rate during combustion of the biomass fuel is fulfilled; in addition, the calcium phosphate and the ash content regulator are compounded, so that the ash tends to form a loose and fragile sintering state, and the slagging rate of the biomass fuel is effectively reduced; the production process is simple, low in cost and suitable for industrialization.

The application discloses a kind of high tough silicate glass and its preparation method and application, by mass percentage, the high tough silicate glass includes: silicon dioxide 50~60%;Aluminum oxide 10~18%;Lithium oxide 3~8%;Sodium oxide 10~15%;Potassium oxide 1~3%;Magnesium oxide 0~4%;Zirconium oxide 0~3%;Cerium dioxide 0~6%;Boron trioxide 0~3%;Yttrium oxide 5~15%;Titanium dioxide 0.5~3%.The high tough silicate glass prepared in the application has the characteristics of high hardness (≥780 Hv), high bending strength (≥730 MPa) and good light transmittance in visible light region (≥90%), and is suitable for high reliability transparent structural parts, optical windows and protective glass and other fields.