190 results about "Zirconium(IV) silicate" patented technology

The invention discloses a raw material of a near-zero shrinkage silicon-based ceramic core and a preparation method thereof, the raw material of the ceramic core comprises refractory material powder, zirconium silicate powder and metal zirconium powder, and the refractory material powder, the zirconium silicate powder and the metal zirconium powder are mixed according to the proportion to form the raw material of the ceramic core; ceramic core raw materials are added into liquid paraffin to form ceramic core slurry, the ceramic core slurry is used for obtaining a ceramic core biscuit through a hot-pressing injection molding method, and the ceramic core biscuit is subjected to powder burying sintering to obtain the ceramic core. Volume shrinkage generated in the sintering process of the ceramic core is made up through in-situ synthesis oxidation expansion of the metal zirconium powder, meanwhile, shrinkage of the ceramic core can be made up through generated zirconium dioxide due to the phase change effect, near-zero shrinkage of the silicon-based ceramic core in the sintering process is achieved under the dual effects of in-situ oxidation and the phase change effect, and the silicon-based ceramic core has the good sintering performance. Meanwhile, the generated zirconium dioxide improves the room-temperature bending strength and the high-temperature bending strength of the ceramic core.

The invention relates to the technical field of ceramic substrates, and provides a low-dielectric-constant multilayer ceramic substrate and a preparation method thereof. The low-dielectric-constant multilayer ceramic substrate comprises the following components in parts by weight: 100 parts of aluminum oxide, 4-8 parts of a sintering aid, 8-16 parts of silicate, 3-6 parts of copper oxide, 3-5 parts of a dispersing agent, 6-12 parts of a binder and 70 parts of a solvent, the silicate comprises magnesium aluminum silicate and zirconium silicate in a weight ratio of (1.5-9): 1. According to the technical scheme, the problem that the bending strength of the multi-layer ceramic substrate is poor in the prior art is solved.

The invention discloses a rare earth antibacterial ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials, the rare earth antibacterial ceramic comprises a base material, a rare earth antibacterial agent and an auxiliary additive, the base material is coated with a zirconium silicate coating layer; the matrix material is one of aluminum oxide or zirconium oxide, the rare earth antibacterial agent is a ternary composite oxide composed of at least three lanthanide elements, the lanthanide elements comprise Ce, Y, La and Nd, and the invention provides a preparation method of the composite material. Through collaborative innovation of ternary rare earth composite modification, zirconium silicate interface coating and a gradient sintering process, the core problems of single antibacterial spectrum, high-temperature failure and insufficient durability of traditional antibacterial ceramic are solved, and the antibacterial property, stability, biological safety and mechanical property are remarkably improved; and the method has clear technical progress and industrial application value.

The invention discloses double-layer fancy glaze with chapped ground texture and a preparation method of the double-layer fancy glaze, and relates to the technical field of ceramic glaze. The double-layer fancy glaze is composed of a ground glaze layer and a cover glaze layer. The ground glaze raw materials comprise potassium feldspar, kaolin, calcite, quartz, dolomite, zinc oxide and pigment; the cover glaze raw materials comprise potassium feldspar, waste porcelain powder, blank powder, chinastone, limestone, sepiolite, quartz, zirconium silicate with the particle size D50 being less than or equal to 1.0 mu m and pigment. The preparation method comprises the following steps: respectively carrying out ball milling to prepare ground glaze slip (32-40 baume degrees) and cover glaze slip (51-53 baume degrees); spraying ground glaze on the green body, drying, and then soaking with cover glaze; and finally, sintering at the temperature of 1250-1270 DEG C in a reducing atmosphere. Through the synergistic effect of the sepiolite and other components, the cover glaze has high surface tension, forms a microcrack network during drying, generates controllable glaze shrinkage during firing, forms a three-dimensional chap texture with crack width of 1-5mm and strong curled and raised crack edges, and meanwhile, the ground glaze completely covers a green body, so that the product practicability is ensured.

The present invention discloses a 3D three-dimensional glaze, which comprises the following components in percentage by weight: 45% - 60% of silicon dioxide, 17% - 25% of aluminum oxide, 1% - 2% of calcium oxide, 0.06% - 1.2% of magnesium oxide, 0.4% - 0.6% of sodium oxide, 1% - 3% of potassium oxide, 10% - 20% of zirconium oxide, 0.2% - 0.6% of zinc oxide, and 1% - 3% of boron oxide; the loss on ignition of the 3D three-dimensional glaze is 1.8% - 3.6%. The preparation method of the 3D three-dimensional glaze is to quantitatively weigh powders such as zirconium silicate, quartz powder, calcined alumina, potassium feldspar, ceramic frit powder, sodium carboxymethyl cellulose, and industrial tripolyphosphate, and then sequentially add the powders and emulsifying wax into water and stir to obtain a glaze slurry. After adjusting the viscosity of the glaze slurry, the 3D three-dimensional glaze is obtained by passing through an 80-mesh sieve. The present invention improves the adhesion of the 3D three-dimensional glaze on the surface of the green body, and when fired directly or in combination with other glazes, the three-dimensional glaze lines will not collapse, crack, have bubbles or breakpoints.

The invention discloses 95 aluminum oxide ceramic for a vacuum switch and a preparation method of the 95 aluminum oxide ceramic, and belongs to the technical field of aluminum oxide ceramic and vacuum switches. The ceramic disclosed by the invention is prepared from the following raw materials: 3 to 5 parts of nano alpha-aluminum oxide, 0.05 to 0.1 part of yttrium oxide, 0.04 to 0.08 part of lanthanum oxide, 0.3 to 0.6 part of zirconium silicate, 3.0 to 4.5 parts of fused quartz, 1 to 1.6 parts of magnesium fluoride, 0.3 to 0.5 part of calcium carbonate, 0.3 to 0.5 part of barium carbonate, 1.5 to 2.5 parts of Suzhou clay and 93 to 94 parts of micron alpha-aluminum oxide. The prepared high-performance 95 aluminum oxide ceramic has excellent breaking strength, electric breakdown strength, thermal shock resistance, chemical stability and the like, can meet the performance requirements of a high-pressure vacuum tube in a severe working environment, and ensures the working stability of a circuit.

The invention relates to the field of glaze, in particular to a method for preparing antibacterial glaze from zirconium silicate, high-temperature-resistant rare earth ions are introduced into the glaze to enhance the antibacterial property of the glaze, so that the glaze still keeps a relatively high antibacterial effect after being sintered at a high temperature; the components of the glaze are matched, a composite dispersing agent is introduced during preparation of the glaze for wet ultrafine grinding, and the glaze surface formed by the prepared antibacterial glaze has the effects of self-cleaning, formaldehyde removal and the like by controlling the material ratio; nano-scale erbium-doped zirconium silicate which is narrow in particle size distribution and free of agglomeration is synthesized, and silver-bismuth modified composite titanium dioxide is synthesized, so that the high temperature resistance of the composite titanium dioxide is enhanced, and the composite titanium dioxide still keeps excellent antibacterial performance after being sintered at a high temperature; during wet ultrafine grinding, when 2.2-2.8% of a composite dispersant compounded by modified acrylic acid and polyethylene glycol is added, a glaze surface formed after sintering is compact, so that the self-cleaning property of the glaze is greatly improved.

The invention provides modified zirconium silicate whisker reinforced aluminum oxide ceramic as well as a preparation method and application thereof, and belongs to the technical field of new materials. The preparation method comprises the following steps: modifying the surface of alumina powder with a silane coupling agent with sulfydryl to generate zirconium silicate in situ, uniformly mixing the zirconium silicate with zirconium silicate whiskers which are treated by hydrogen peroxide and modified by phytic acid and tannic acid and a CeO2-Y2O3-MgO-SiO2 compound, and performing spark plasma sintering to obtain the modified zirconium silicate whisker reinforced alumina ceramic. The modified zirconium silicate whisker reinforced aluminum oxide ceramic prepared by the invention has better interface bonding force, excellent mechanical properties and good wear resistance, realizes ceramic densification, and has wide application prospects.

The invention discloses micron-sized pearl glaze ceramic and a preparation method thereof, and relates to the technical field of ceramic, and the micron-sized pearl glaze ceramic is characterized by comprising a ceramic body, a toning ground coat layer and a dry particle layer, the toning ground coat layer is prepared from the following raw materials in parts by weight: 15 to 25 parts of quartz, 20 to 30 parts of feldspar, 5 to 10 parts of kaolin, 3 to 8 parts of calcined zinc oxide, 5 to 10 parts of calcium carbonate, 8 to 15 parts of barium carbonate, 8 to 15 parts of zirconium silicate, 0.05 to 0.5 part of toning metal oxide and 1 to 3 parts of functional additive; the dry particle layer is prepared from the following raw materials in parts by weight: 30 to 40 parts of quartz sand, 10 to 15 parts of borax, 5 to 8 parts of sodium carbonate, 3 to 6 parts of lithium carbonate, 10 to 18 parts of Bi2O3, 10 to 18 parts of TiO2, 0.5 to 2 parts of rare earth oxide and 0.5 to 2 parts of nucleating agent. The prepared ceramic shows soft and layered pearl luster under light rays of different angles, and the physical performance is greatly improved.

The invention discloses a preparation method of sodium zirconium cyclosilicate ZS-9, which comprises the following steps: reacting reaction feed liquid A formed by dissolving sodium hydroxide in water and reaction feed liquid B formed by dissolving sodium silicate and zirconium acetate in water in an opposite spraying contact manner in a spraying manner, and ending the reaction; and pulping and washing the reaction solution with water until the pH value is less than or equal to 9.0, filtering and drying to obtain the sodium zirconium cyclosilicate ZS-9 crystal form. The method is mild in reaction condition, short in reaction time and very suitable for industrial production.

The invention discloses a sanitary ceramic and a preparation method thereof, and belongs to the technical field of ceramics, the sanitary ceramic comprises a ceramic body and a glaze layer, the glaze layer is prepared from the following raw materials in parts by weight: 30 to 35 parts of feldspar, 23 to 26 parts of quartz, 10 to 15 parts of calcite, 5 to 8 parts of dolomite, 6 to 9 parts of zirconium silicate, 3 to 6 parts of zinc oxide, 2 to 3 parts of aluminum oxide, 1 to 3 parts of frit, 0.5 to 2 parts of modified silicon carbide whisker and 0.05 to 0.1 part of dispersing aid. The preparation method comprises the following steps: 1, preparing a sanitary ceramic green body; step 2, carrying out ball milling on the frit in advance according to parts by weight, then adding the rest raw materials, mixing, adding water, continuously carrying out ball milling, and then removing iron and sieving to obtain glaze slip; step 3, uniformly spraying the glaze slip on a sanitary ceramic green body to obtain a glazed green body; and step 4, performing glaze firing on the glazed green body to obtain the sanitary ceramic which is smooth and glossy in appearance and has good anti-pollution and antibacterial effects.

The invention relates to the technical field of aero-engine turbine blade casting, in particular to an integrated casting method for a hollow turbine blade with air film holes. The hollow turbine blade and the hollow turbine blade are connected through a mortise and tenon joint structure, a negative hole is formed through nano-imprinting, gradient sintering treatment is conducted, an exhaust micro-channel is formed in a shell, a gas film hole and a self-repairing layer located on the hole wall of the gas film hole are synchronously produced in the pouring process, and chemical etching and aftertreatment are conducted, so that the finally prepared hollow turbine blade is provided with a high-precision gas film. The cooling effect and the interface bonding strength are high, the thermal cycle life is prolonged, the machining period is shortened, and hole wall cracks can be self-repaired.

The invention belongs to the technical field of ceramics, and particularly relates to a light glazed ceramic large brick and a preparation method thereof. The light glazed ceramic large brick is composed of a blank body layer, a ground coat layer and a surface glazed layer, wherein the blank body layer is prepared from the following components in parts by weight: 35-42 parts of kaolin, 25-30 parts of argil, 8-12 parts of cordierite, 10-15 parts of quartz, 5-9 parts of aluminum oxide, 4-9 parts of potassium feldspar and 1-3 parts of a binder; the ground glaze layer is prepared from the following components in parts by weight: 25-37 parts of potassium feldspar, 15-20 parts of calcined talc, 15-20 parts of frit, 10-25 parts of quartz, 8-10 parts of calcite, 5-10 parts of zirconium silicate and 5-8 parts of calcined zinc oxide; and the surface polishing glaze is prepared from the following components in parts by weight: 30-40 parts of frit, 20-30 parts of clay, 15-22 parts of albite, 10-15 parts of zinc oxide, 10-15 parts of stone powder and 8-13 parts of kaolin. Meanwhile, according to the preparation method of the large ceramic brick, a low-temperature fast firing technology is adopted, the sintering performance of the large ceramic brick is improved, the strength and hardness of the large ceramic brick are improved, and the large ceramic brick is safe, firm and not prone to breakage when bearing certain pressure or impact force.

The invention discloses a wear-resistant special ceramic material and a preparation method thereof, and belongs to the technical field of special ceramic preparation. The wear-resistant special ceramic material comprises the following raw materials: zirconium silicate, zirconium oxide whiskers, titanium carbonitride, zinc oxide whiskers, magnesium oxide, petalite, cerium oxide, nickel-based alloy powder and the balance of aluminum oxide. The zirconium silicate, the zirconium oxide whisker, the titanium carbonitride, the zinc oxide whisker and the nickel-based alloy powder are used as combined additives, so that composite synergistic reinforcement and toughening of multiple phases are realized; compared with conventional aluminum oxide ceramics, the prepared wear-resistant aluminum oxide ceramic material has the advantages that the wear resistance, the fracture toughness and the thermal shock resistance are remarkably improved, and the performance requirements of more severe working environments can be met.

The present invention discloses a high-quality ceramic glaze for sanitary ceramics and a preparation method thereof. The ceramic glaze comprises, by weight, 15-23% potassium feldspar, 4-10% sodium feldspar, 28-34% quartz, 1-4% aluminum oxide, 8-14% calcite, 4-8% dolomite, 4-8% burned kaolin, 6-8% wollastonite, 2-3% zinc oxide, 7-10% zirconium silicate, and 2-3% boron frit. While the present invention reduces the use of zirconium silicate in the formula, by precisely adjusting the silicon-aluminum ratio and introducing quartz particles of a specific composition, the glaze surface hardness is comparable to that of conventional formulas. Even while reducing the use of potentially radioactive ingredients, the product still provides good scratch resistance and a long service life, thereby maintaining normal use and aesthetics. By reducing the amount of zirconium silicate used, the glaze formula reduces production costs by approximately 20%, achieving energy conservation and consumption reduction.

The invention relates to the technical field of ceramic tiles, in particular to a sapphire single crystal diamond glaze super-wear-resistant ceramic tile and a preparation method thereof. The sapphire single crystal diamond glaze super wear-resistant ceramic tile is prepared from the following raw materials in parts by weight: high-purity alpha-Al2O3 powder, nano-diamond turbid liquid, rare earth modified zirconium silicate, a gas-phase transport agent, a lattice matching cosolvent and zinc oxide whiskers. According to the invention, the high-purity alpha-Al2O3 epitaxially grows on the surface of the nano-diamond to form an atomic-scale coherent interface, the bonding strength is high, the high hardness of sapphire and the wear resistance of diamond are integrated, the self-sharpening characteristic is endowed to the glaze layer by a micro-scale interlocking structure, a new hard interface is exposed in the wear process, the surface wear resistance is continuously maintained, and the service life of the glaze layer is prolonged. The problem of performance degradation after traditional materials are abraded is solved.

The invention discloses a preparation method of a zirconium silicate composite material for sanitary ceramic matte glaze, which comprises the following steps: preparing raw materials: 50-100 parts of potassium feldspar, 60-80 parts of quartz powder, 40-50 parts of kaolin, 50-60 parts of burnt talcum powder, 5-10 parts of waste porcelain powder, 8-10 parts of wollastonite powder, 15-25 parts of high-aluminum stone powder, 20-30 parts of aluminum oxide, 7-9 parts of bentonite and 10-30 parts of zirconium silicate; a crushing step: pouring potassium feldspar, quartz powder, kaolin, burnt talcum powder, waste porcelain powder, wollastonite powder, high-aluminum stone powder, aluminum oxide, bentonite and zirconium silicate into a crusher by a user; potassium feldspar, quartz powder, kaolin and burnt talcum powder are arranged to form glaze, then waste porcelain powder, high-aluminum stone powder, aluminum oxide, bentonite and zirconium silicate are arranged to form a zirconium silicate mixture, then the glaze and the zirconium silicate mixture are mixed to form a zirconium silicate composite material, and the zirconium silicate composite material is subjected to hot burning to form the ceramic tile. The waste porcelain powder, the high-aluminum stone powder, the aluminum oxide and the bentonite can increase the strength of the glaze after hot burning.

The invention discloses sanitary ceramic repairing glaze and a ceramic glaze surface defect repairing process. The repairing glaze comprises ground glaze and self-cleaning snowflake cover glaze, the ground glaze is prepared from 18 to 23 parts of frit, 3 to 8 parts of calcined kaolin, 25 to 30 parts of quartz, 23 to 28 parts of albite, 2 to 5 parts of wollastonite, 9 to 14 parts of calcite, 0.8 to 1.2 parts of calcined zinc oxide, 8 to 12 parts of zirconium silicate, 1 to 3 parts of barium carbonate and 0.8 to 1.2 parts of aluminum oxide; the self-cleaning snowflake cover glaze is prepared from 28 to 33 parts of frit, 12 to 16 parts of calcined kaolin, 2 to 6 parts of calcined zinc oxide, 7 to 12 parts of calcite, 3 to 8 parts of wollastonite, 16 to 22 parts of albite, 0.5 to 1.5 parts of calcined talc, 15 to 20 parts of quartz, 1 to 4 parts of barium carbonate and 0.5 to 13 parts of aluminum oxide. According to the formula of the ground glaze and the self-cleaning snowflake cover glaze, the initial melting temperature of the glaze is reduced by adding a fluxing agent and reducing high-temperature raw materials, the high-temperature chemical reaction time is shortened, and the formula can adapt to a fast firing curve of a refiring kiln.

The present invention provides a copper-based catalyst, a preparation method and an application thereof, and relates to the technical field of synthesizing indole. The copper-based catalyst is composed of a carrier, an active component and an auxiliary metal, wherein the active component accounts for 5% to 15% of the carrier mass, and the auxiliary metal accounts for 3% to 15% of the carrier mass; wherein the carrier is a silica carrier doped with zirconium silicate, and the doping amount of zirconium silicate is 0 to 20% of the silica carrier mass; the active component is copper; the auxiliary metal is a first auxiliary metal and a second auxiliary metal with a mass ratio of 2 to 10:1 to 5, the first auxiliary metal is one or more of zinc, magnesium, calcium, cobalt, and nickel, and the second auxiliary metal is one or more of yttrium, lanthanum, cerium, praseodymium, samarium, aluminum, gallium, indium, chromium, molybdenum, and tungsten. The copper-based catalyst provided in the embodiment of the present invention has excellent performance and has significant advantages in terms of sustained reaction life. When preparing indole, the copper-based catalyst can react continuously for 10 h with a yield of more than 60%, react for 200 h, and maintain a yield of more than 40%, and react for 500 h with a yield of more than 32%.

The invention discloses a method for synthesizing zirconium silicate ceramic by using mineralizer assisted solid phase sintering, relates to the technical field of ceramic manufacturing, and aims to solve the problem of developing a novel and efficient mineralizer system. The preparation method comprises the following specific steps: S1, mixing nanoscale zirconium dioxide, silicon dioxide, a mineralizing agent and a grinding solvent in an agate mortar, and pressing to obtain a rough blank; and S2, heating the rough blank to 900-1500 DEG C at a speed of 5 DEG C / min in a muffle furnace, and sintering for 6 hours to obtain the ZrSiO4 ceramic body.

This invention provides a shell reinforcing agent, comprising, by weight percentage, 55%–65% flocculent fibers and 35%–45% dispersant; wherein the flocculent fibers are prepared from raw materials including kaolin, alumina, quartz, dolomite, magnesium oxide, and zirconium silicate. When applied to shells, this shell reinforcing agent significantly improves the strength of the shell, effectively mitigating shell cracking during drying and dewaxing. Furthermore, the reinforcing agent fractures as the temperature decreases, significantly increasing the porosity within the shell. Its residual strength is lower than that of shells without the reinforcing agent, making shell removal or delamination easier, ultimately achieving a delamination effect.

The invention discloses celeste glaze fired in a non-reducing atmosphere and a preparation method of the celeste glaze. The celeste glaze provided by the invention is prepared from the following raw materials in percentage by mass: 56 to 60 percent of feldspar, 15 to 18 percent of quartz, 10 to 13 percent of calcite, 1 to 3 percent of talc, 5 to 8 percent of kaolin and 6 to 8 percent of celadon pigment. The main crystalline phase of the celadon pigment is zirconium silicate, vanadium ions and iron ions playing a coloring role are wrapped outside the zirconium silicate, the molar concentration of the vanadium ions is 2%-4%, and the molar concentration of the iron ions is 1%-3%. According to the method, the vanadium iron ion celadon pigment wrapped by the high-temperature pre-stabilized zirconium silicate is used as the coloring agent, and the celeste blue glazed porcelain is fired in the non-reducing atmosphere, so that the core problem existing in the traditional firing in the reducing atmosphere is successfully solved. And ferrovanadium ions in the coloring agent are stably wrapped in zirconium silicate crystals and are not influenced by the fluctuation of the firing atmosphere, so that the consistency of the glaze color of the same batch of celeste glaze is ensured. Regulation and control of the celeste glaze color are achieved through the adding amount of the celadon pigment, operation is easy, convenient and visual, and dependence on technical experience of operators is reduced.

The invention discloses a high-simulation and high-performance stone-imitating bright ceramic tile which sequentially comprises a high-strength green body layer, a functional ground glaze layer, a multi-mode digital texture layer, an interface strengthening-optical adaptation transition layer and a high-transmittance protective glaze layer from bottom to top. The raw materials of the high-strength green body layer comprise spodumene tailing powder and a compound of zirconium silicate and zinc oxide serving as a sintering aid, the water absorption rate is smaller than or equal to 0.2% after sintering, the fracture modulus is larger than or equal to 42 MPa, the high-strength green body layer is covered with the functional ground coat layer, and the raw materials of the functional ground coat layer comprise a porous forming agent and active components capable of reacting with follow-up ink. According to the invention, through multi-modal data acquisition and morphology channel printing, full-dimensional physical recarving of natural stone from macroscopic color veins to micro-crystal fluctuations is realized, and high-refractive-index ink and an interface strengthening-optical adaptation transition layer are combined, so that the appearance of the natural stone is enhanced. The product can present the specific deep feeling, moist feeling and mineral crystal flash of natural stone under any illumination, and the vivid degree which is difficult to distinguish by naked eyes is achieved.

The invention relates to the technical field of high-performance ceramics, in particular to a porous toughened ceramic containing a directional hole structure and a preparation method of the porous toughened ceramic. The porous toughened ceramic comprises strip-shaped hole structures which are directionally arranged in parallel to the length direction of a ceramic blank body; the ceramic body comprises the following components in parts by weight: 2-10 parts of zirconium silicate and 1-9 parts of yttrium oxide. By adding the carbon fibers and combining the extrusion molding process, directional arrangement of the carbon fibers in the extrusion direction is achieved. In the sintering stage, the carbon fibers are gasified to form directional pore channels, and cracks are effectively dispersed. Zirconium silicate and yttrium oxide effectively weaken crack expansion energy, obviously delay the crack expansion rate, prevent cracks from directly breaking down directional pore channels under supercritical load, and ensure effective deflection of the cracks in the direction of the pore channels. And meanwhile, crack paths deflected by the directional pore channels are obviously dispersed, so that more dispersively distributed zirconium oxide particles can be contacted, the phase change toughening effect is further excited, and the secondary improvement of the toughness of the material is realized.

The invention discloses a wear-resistant and crack-resistant porcelain glaze which is mainly prepared from the following raw materials: 20-35 parts of zirconium silicate, 2-3 parts of zinc oxide, 6-15 parts of kaolin, 15-20 parts of potassium feldspar, 8-12 parts of spodumene, 5-8 parts of magnesium oxide, 9-16 parts of corundum and 6-12 parts of calcite. The invention discloses a preparation process of a wear-resistant and crack-resistant porcelain glaze, which comprises the steps of frit micro-crystallization treatment, optimization of the composition of frit glaze and heating, and at the same time, under the catalytic action of zinc oxide, the grain size of crystal grains separated out from zirconium silicate is smaller, and the prepared porcelain glaze is excellent in compactness and more uniform in coverage. Therefore, toughness, hardness and wear resistance are improved, and wear resistance and crack resistance of the glaze are guaranteed. Compared with the prior art, the prepared glaze layer has more excellent wear resistance and crack resistance.

This invention relates to the field of refractory materials, specifically to a refractory material resistant to manganese ferroalloy (MFC) erosion and its preparation method. It addresses the problems of existing refractory materials suffering from long-term MFC erosion, carbon oxidation leading to micropores, and unstable boundary conditions causing a decrease in the melting point of the reactive metamorphic layer, resulting in MFC erosion growing inwards and a short service life. The working layer, by weight, consists of 80-95 parts of ASC brick base material, 2-7 parts of modified filler, and 10-20 parts of interface isolation material. The modified filler is barium zirconate or zirconium silicate, and the modified material is tantalum nitride. The mass ratio of filler to tantalum nitride is 1-6:1. The interface isolation material is composed of magnesium phosphate, aluminum phosphate, and tungsten carbide, with a mass ratio of magnesium phosphate, aluminum phosphate, and tungsten carbide of 4-6:4-6:8-12. This invention enables the refractory material to possess extremely high MFC resistance, significantly extending its service life.

The invention discloses a surface glaze for tableware porcelain and a preparation method thereof, which belongs to the field of ceramic manufacturing technology. The glaze includes the following raw materials in parts by weight: 15-25 parts of feldspar, 20-30 parts of quartz, 5-10 parts of calcite, 10-15 parts of kaolin, 3-5 parts of talc, 5-6 parts of dolomite, 4-5 parts of strontium carbonate, 4-5 parts of barium carbonate, 0.8-1 parts of lithium carbonate, 2-3 parts of zirconium silicate, 0.2-0.4 parts of graphene oxide / titanium carbide composite material and 0.6-1 parts of dispersant. In the present invention, different components are first treated and reacted before being sintered, which is beneficial to drawing and bridging between different raw materials during the sintering process, and is beneficial to better performance improvement. The prepared glaze has good hardness and low water absorption after firing, forming a high-hardness ceramic coating with wear resistance.

The invention relates to the technical field of automobile brake pads, in particular to a copper-free ceramic brake pad beneficial to electrostatic spraying and a preparation method of the copper-free ceramic brake pad. The friction material of the copper-free ceramic brake pad comprises the following components in parts by weight: 4-10 parts of phenolic resin, 1-3 parts of a resin modifier, 10-20 parts of potassium titanate, 3-8 parts of friction powder, 2-11 parts of barium sulfate, 6-12 parts of a superconducting material, 1-5 parts of calcium fluoride, 3-8 parts of tire powder, 5-10 parts of calcium carbonate, 3-7 parts of iron oxide black, 1-3 parts of aluminum oxide, 2-7 parts of zirconium silicate and 5-15 parts of a reinforcing material. And 10-25 parts of a lubricating material. The superconductive material is added into the copper-free ceramic formula, the electrostatic spraying effect of the copper-free ceramic formula can be effectively improved, meanwhile, the superconductive material and the iron oxide black have the synergistic effect, the effect of stabilizing the friction coefficient can be achieved, and better appearance performance and performance improvement are achieved.

The present application relates to dunhuang murals stone green ceramic rock plate and manufacturing method, including: (1) pressing blank; (2) low zirconium series super white cosmetic clay: cosmetic clay is composed according to weight part: washed highland clay 6, black mud 3, glass frit 18, diopside 2, quartz powder 2, barium-based frit 4, ultrafine quartz powder 12, zirconium white frit 15, calcined alumina powder 6, zirconium silicate 3, potassium feldspar 10, nepheline powder 7, ball clay 10, calcined talc 2, sodium tripolyphosphate 0.6, sodium carboxymethyl cellulose 0.3; (3) inkjet printing: color ink is combined by cyan, blue, brown, wrapped yellow, red and black; (4) promote green glaze: promote green glaze formula is composed according to weight part: high-zinc low-temperature frit 32, fused quartz 28, quartz powder 17, white carbon black 14, highland clay 9; (5) apply protective glaze: according to the selection of product surface gloss and texture of green series product development, it can be dry particle glaze, matt or bright protective glaze; (6) high temperature sintering.

The utility model discloses a zirconium silicate pickling tank which comprises an upper tank, a lower tank integrally connected with the upper tank, a feed pipe and an acid liquor inlet pipe, the upper tank is covered with a tank cover, the bottom of the lower tank is provided with a zirconium silicate discharge pipe, the lower tank is connected with an acid liquor circulating pipe, the acid liquor circulating pipe is provided with a circulating pump, and the other end of the acid liquor circulating pipe is connected with the acid liquor inlet pipe. The feed pipe and the acid liquor inlet pipe respectively penetrate through the tank cover, an outlet of the feed pipe is positioned in a cavity formed by the upper tank and the tank cover, an outlet of the acid liquor inlet pipe is positioned in a cavity formed by the upper tank and the tank cover, and a feed end of the feed pipe is connected with a feed mixing device. According to the pickling device, pickling is carried out without stirring, and meanwhile, the feeding quality can be controlled without stirring, so that the discharging quality is improved.