392 results about "Zirconium" patented technology

The invention discloses a matte glaze and a preparation method thereof. The matte glaze comprises the following components by weight: 1-5 parts of zinc oxide, 5-15 parts of barium carbonate, 0-15 parts of zirconium silicate, 10-25 parts of potassium feldspar, 10-20 parts of kaolin, 5-15 parts of calcite, 5-15 parts of calcined talcum powder, 20-35 parts of a matte frit and 0.5-1 part of an additive. Specifically, the matte frit comprises the following components by weight: 30-50 parts of SiO2, 15-20 parts of Al2O3, 0.01-0.5 part of Fe2O3, 3-10 parts of CaO, 0.5-5 parts of MgO, 1-5 parts of K2O, 3-10 parts of Na2O, 3-10 parts of ZnO, 0.1-1 part of B2O3 and 10-25 parts of BaO. By introducing the matte frit, the melting temperature of the formula is lowered, the firing range of the formula isbroadened, and the glaze texture achieves a fine matte effect.

The present application relates to the technical field of target material, in particular to a preparation method of high-density tin-zinc-zirconium oxide target material. The preparation method comprises the following steps: preparing tin oxide powder, zirconium oxide powder and zinc oxide powder into a mixed slurry, and then performing sand milling, granulation, molding, sintering to obtain the high-density tin-zinc-zirconium oxide target material, wherein the mass ratio of the tin oxide powder, the zirconium oxide powder and the zinc oxide powder is 100:0.1-0.5:9-11. The high-density tin-zinc-zirconium oxide target material prepared by the preparation method has high relative density and low resistivity, and the sputtered film thereof has high transmittance in the visible light range, can replace the traditional indium tin oxide target material, and can be widely applied in the fields of semiconductor integrated circuits, LEDs, displays, touch screens, solar photovoltaics and chemical industry.

The utility model discloses a high frequency vibrating screen device for zirconium titanium ore sorting relates to mineral processing field. A high frequency vibrating screen device for zirconium titanium ore sorting, including screening box, still include: a plurality of oblique settings screening board, from top to bottom equal interval staggered fixed connection in screening box, the both sides of screening box are opened in the symmetry and have the flow through cavity, the utility model discloses through the consistent screen hole design of multilayer screening board and high frequency vibration cooperation, has realized zirconium titanium ore material's efficient continuous screening, and small particle is fast and sieves when first contact screen surface, and large particle is repeatedly refined through multistage screening board, finally through first discharge port and second discharge port accurate separation, effectively improved the screening efficiency, and through continuously to the feed pipe conveying material, and the device can continuous operation, need not stop machine to take and put material, and the continuity of production is greatly improved, reduces manpower cost and equipment loss, especially suitable for the efficient production demand of large -scale zirconium titanium ore processing enterprise.

This invention provides a magnesium anode material with a dislocation density gradient structure based on asynchronous rolling, its preparation method, and its application, relating to the field of anode material technology. The magnesium anode material of this invention is prepared by raw material melting and casting, solution treatment, extrusion molding, and asynchronous rolling. The magnesium anode material includes no more than 0.1 wt.% zirconium, with the balance being magnesium and unavoidable impurities. The dislocation density of the magnesium anode material increases gradient from the surface to the core. This invention introduces a dislocation density structure with a gradient from the surface to the core into magnesium alloy sheets through asynchronous rolling, thereby obtaining a magnesium anode material with both high discharge activity and good corrosion resistance, improving its overall discharge performance in magnesium-air batteries. The preparation process of the magnesium anode material of this invention is simple, highly controllable, and easy to scale up, possessing good industrialization potential.

DEPCT6720 / 08 / 2567 Zirconia powder containing 2% by mol or more and 8% by mol or Less than that of the stabilizing element and 50 ppm or less of titanium (Ti) and containing Activation energies of 225 kJ / mol or more, and 300 kJ / mol or less, are provided. There is at least one zirconia powder that can produce sintered objects with high transparency. By using pressureless sintering, a method suitable for industrial production, the following can be employed: Zirconia powder production: methods for manufacturing calcined objects using zirconia powder and techniques. For the production of sintered objects using zirconia powder, the powder is desirablely manufactured by: The method involves the following steps: adjusting the pH of the raw material solution containing the source. Zirconium and its stabilized sources are at 3.5% or higher and 5.5% or lower. Heating the raw material solution to produce zirconia sol solution; mixing the zirconia solution. And alkaline solutions for co-sludge production and heat treatment of the co-sludge;

This application belongs to the field of target material production technology and discloses a method for preparing zirconium-yttrium alloy targets. First, zirconium is melted and cooled to obtain a zirconium ingot. Then, the zirconium ingot is flipped over and melted a second time. At the same time, metallic yttrium is added to the molten zirconium ingot to melt it to obtain a primary eutectic. Then, the primary eutectic is cooled to room temperature within 85 minutes to obtain a primary eutectic body. The primary eutectic body is then flipped over and melted a third time to obtain a secondary eutectic. Then, the primary eutectic is cooled to room temperature within 70 minutes to obtain a secondary eutectic body. Finally, the secondary eutectic body is machined, hot rolled, and hot isostatically pressed to obtain a zirconium-yttrium alloy target. This application improves the uniformity of zirconium and yttrium distribution by repeatedly flipping the zirconium ingot or eutectic body and remelting it. In addition, this application also discloses a zirconium-yttrium alloy target.

This invention discloses a supported zirconium-based catalyst, its preparation method, and its application. It includes a zirconium-based support and a noble metal supported on the zirconium-based support. The zirconium-based support includes one or more of a zirconium-based composite oxide support and a zirconium-based metal-organic framework material. The zirconium-based composite oxide support includes a composite of zirconium oxide and other oxides, and the other oxides include oxides of one or more elements selected from Si, P, Ce, and Mg. The above-mentioned supported zirconium-based catalyst increases the interaction between the supported noble metal and the support by introducing Si, P, Ce, or Mg into the zirconium-based support to adjust the electron cloud density or oxygen vacancy concentration of the zirconium-based support. By using a zirconium-based metal-organic framework material with regular channels to support the noble metal, reactants and products can diffuse relatively quickly and smoothly, thereby avoiding excessive side reactions and carbon deposition caused by excessive retention of reaction intermediates or products.

This invention relates to the field of zirconium-based amorphous alloy preparation technology, specifically to a phosphorus-containing bulk zirconium-based amorphous alloy and its preparation method. The general formula for the composition of this zirconium-based amorphous alloy is: (Zr... a Cu b Al c M （100‑a‑b‑c） ) 100‑x P x Where 53.5≤a≤60, 25≤b≤33.3, 7.5≤c≤10, 0.35≤x≤0.6, and a, b, c, and x are atomic ratios, and M is one or more of Fe, Co, Ni, and Nb. Phosphorus is introduced into the alloy in the form of a copper-phosphorus alloy, resulting in an amorphous fraction greater than or equal to 80%. Adding phosphorus can significantly improve the gas efficaciousness (GFA) of the matrix alloy, increasing the critical diameter for amorphous formation from 3-5 mm to 8-14 mm, and the compressive fracture strength from 1.8 GPa to 2.4 GPa. The zirconium-based amorphous alloy has a large critical diameter for amorphous formation and good thermal stability.

The application discloses a composite metal catalyst for catalytic degradation of VOCs at low temperature and a preparation method thereof, and belongs to the field of environmental protection catalysis technology. The composite metal catalyst comprises the following components in percentage by weight: 5-25% of a multi-component composite metal oxide, 65-90% of modified mesoporous zeolite, 2-6% of a composite additive, and 1-3% of a high-temperature-resistant binder. The multi-component composite metal oxide is a copper / manganese / cerium / zirconium quaternary composite oxide, and the molar ratio of copper, manganese, cerium and zirconium is 1:(0.8-1.2):(0.5-0.8):(0.2-0.5). The modified mesoporous zeolite is ZSM-5 mesoporous zeolite which is modified by rare earth ions and an amphoteric surfactant. The application adopts the copper / manganese / cerium / zirconium quaternary composite metal oxide as an active component, the introduction of cerium and zirconium forms a solid solution structure, greatly improves the oxygen storage capacity and the redox performance of the active component, and the synergistic effect of copper and manganese and cerium and zirconium significantly reduces the oxidation and decomposition temperature of VOCs.

This invention discloses a continuous gradient Cr-Al coating for zirconium alloy cladding and its preparation method, belonging to the field of nuclear zirconium alloy coating technology. The method of this invention first pre-activates the zirconium alloy cladding surface with Cr ions, followed by depositing a Cr-Al coating with a continuous gradient composition. This process involves maintaining the bias voltage of the Cr target source at 3000-5000V, and increasing the bias voltage of the Al target source from 0V to 3000-5000V in 3-15 increments, with an interval of 20-140 minutes between each increment and an increment of 200-1000V. This results in a region where the Cr content continuously decreases and the Al content continuously increases from the interface between the Cr-Al coating and the Cr-ion-preactivated zirconium alloy cladding surface to the outer surface of the Cr-Al coating. This method solves the problem of existing methods easily leading to damage to the internal structure of the coating.

The application discloses a zirconium alloy mouth ring device for a centrifugal pump and an assembling method, and relates to the field of centrifugal pumps. The zirconium alloy mouth ring device for the centrifugal pump comprises a first mouth ring and a second mouth ring. The outer wall of the first mouth ring is matched with a mounting hole of a pump body or a pump cover, and the outer wall is sequentially provided with a first interference fit part and a first transition fit part in the axial direction; the inner hole surface of the second mouth ring is matched with a mounting shaft journal of an impeller, and the inner hole surface is sequentially provided with a second interference fit part and a second transition fit part in the axial direction. The ratio of the axial length of the first interference fit part to the first transition fit part and the ratio of the axial length of the second interference fit part to the second transition fit part are both 1:1.5 to 1:2.5. The application corrects the deformation of the mouth ring through interference fit and absorbs the assembling error through transition fit, solves the assembling precision control problem caused by the fact that the zirconium alloy mouth ring cannot be precisely machined after heat treatment, and ensures the uniformity and stability of the running gap of the mouth ring.

The application discloses an accident-tolerant nuclear fuel cladding coating and a preparation method and application thereof, and belongs to the technical field of nuclear fuel cladding coating. The coating is a Cr-based binary alloy coating deposited on the surface of a zirconium alloy base, and is selected from Cr-Fe, Cr-V or Cr-Mo alloy coatings, wherein the content of Fe is 3-10 wt%, the content of V is 3-20 wt%, and the content of Mo is 1-5 wt%. The preparation method adopts a magnetron sputtering process, and is realized by controlling parameters such as vacuum degree, temperature, gas pressure, bias voltage and power. Through alloying, the application effectively inhibits the element interdiffusion between the coating and the zirconium alloy base at high temperature, reduces the formation of brittle intermetallic compounds and Kirkendall holes, significantly improves the thermal stability and service life of the coating under accident conditions, meanwhile, the process is mature, the coating quality is high, and the coating is suitable for surface protection of zirconium alloy fuel cladding of nuclear power stations.

The application discloses an adsorbent for removing trace metal ions in alcohol ether solvents and a preparation method and application thereof, and belongs to the field of chemical separation technology. The adsorbent is a zirconium-based metal organic cage material with discrete structure formed by coordination self-assembly of a zirconium metal salt and a nitrogen-containing polycarboxylic acid organic ligand. The adsorbent has specific ion nanowells, and can form a strong limited synergistic effect with metal ions. The adsorbent is suitable for adsorption and separation of trace metal ions in various alcohol ether solvents, and has high metal ion adsorption and removal efficiency.

This invention discloses a cesium zirconate chloride / acid-modified carbon nitride heterojunction photocatalyst, its preparation method, and its application. Belonging to the field of photocatalytic materials technology, the cesium zirconate chloride / acid-modified carbon nitride heterojunction photocatalyst contains 10%-50% cesium zirconate chloride by molar percentage. The preparation method includes: adding zirconium chloride and tubular graphitic carbon nitride to hydrochloric acid and mixing them evenly to obtain precursor A; dissolving cesium chloride in hydrochloric acid to obtain precursor B; rapidly injecting precursor B into precursor A to rapidly generate a precipitate, which is then purified with methanol to obtain the target product. This invention improves the photocatalytic CO2 photoreduction efficiency by introducing an acid-modified carbon nitride and cesium zirconate chloride composite heterojunction structure. The tubular g-C3N4 can increase the specific surface area of ​​the material, providing more surface active sites; the surface protonation of acid-modified g-C3N4 can increase the polarization degree of g-C3N4, thereby significantly improving the photocatalytic performance and achieving the purpose of improving the photocatalytic activity of the composite material.

The present application relates to a kind of Y type molecular sieve catalytic material for improving gasoline yield and selectivity and its preparation method, Y type molecular sieve catalytic material is obtained by the hydrothermal crystallization of reactive microspheres containing zirconium, reactive microspheres containing zirconium contain 85-99.9 wt% alumina matrix and 0.1-15 wt% zirconium oxide, and the zirconium oxide contains tetragonal phase crystalline zirconium oxide.The Y type molecular sieve catalytic material of the present application has better strength and cracking effect, and the catalyst containing the Y type molecular sieve catalytic material of the present application can improve the selectivity and yield of catalytic cracking gasoline.

A method comprising: generating NO2 in a catalyst (70) comprising a washcoat with zirconium, one or more base metal oxides and a palladium oxide, wherein an exhaust gas flow rate is between the lower and upper threshold flow rates; and facilitating regeneration of a particulate filter (72) located downstream of the catalyst (70) via NO2 when an exhaust gas temperature is greater than a threshold temperature; wherein the palladium oxide is contained in an upstream section (70A) of the catalyst (70) in relation to a direction of the exhaust gas flow; and the at least one base metal oxide is contained in a downstream section (70B) of the catalyst (70) in relation to the direction of the exhaust gas flow.

A kind of zirconium alloy water environment corrosion microscopic mechanism analysis method based on ab initio molecular dynamics, 1, construct the multi-phase interface model of metal substrate model and corrosion medium layer model combination, obtain the size information of simulation box;2, set simulation parameters for multi-phase interface model;3, carry out geometry structure optimization to multi-phase interface model and eliminate local internal stress, then carry out ab initio molecular dynamics simulation, obtain atomic evolution track and corrosion product structure;4, carry out data post-processing and statistical analysis to ab initio molecular dynamics simulation result, obtain corrosion elementary reaction path and calculate reaction energy barrier, the interaction mechanism of corrosion group and surface is analyzed by DFT method.The method can complete accurate zirconium alloy corrosion process dynamic simulation under periodic boundary condition, has higher calculation precision and is more reasonable to the description of interatomic force in system, and can also analyze the interaction mechanism between alloy and corrosion medium from atomic electronic scale.

The application discloses the technical field of waste gas purification catalyst regeneration, and discloses a regeneration process of a low-temperature SCR denitration catalyst; the process comprises the following steps: after the deactivated catalyst is cleaned through ultrasonic cleaning, the deactivated catalyst is sequentially immersed in a chemical activation liquid and an oxidation treatment liquid for activation and oxidation treatment, then the deactivated catalyst is immersed in a water dispersion liquid containing tungsten-silicon heteropoly acid-zirconium titanium composite oxide core-shell structure material and polyvinylpyrrolidone, vacuum-assisted impregnation, drying and gradient temperature heat treatment are carried out, and a regenerated catalyst is obtained. The core-shell structure material is prepared by the following steps: synthesizing a titanium zirconium composite oxide carrier through a sol-gel method, loading cerium manganese active components through a coprecipitation method, modifying silicotungstic acid through a layer-by-layer self-assembly technology and surface silanization modification. The regenerated catalyst has the advantages of significant improvement in sulfur resistance and alkali metal poisoning resistance, simple process operation, low energy consumption and suitability for industrial application.

This invention belongs to the field of battery active materials technology, specifically disclosing a lithium manganese iron phosphate composite material, its preparation method, and a secondary battery. The lithium manganese iron phosphate composite material includes a core and a first coating layer (carbon layer) and a second coating layer (fast ion conductor layer) sequentially covering the core from the inside out; the core comprises lithium manganese iron phosphate material LiFe. x Mn 1‑x D y PO4, 0 < x < 1, 0 ≤ y ≤ 0.1, D is the doping element; the fast ion conductor layer includes the fast ion conductor Li. a M b A c O d X e M represents titanium and / or zirconium, A represents nitrogen and / or phosphorus, and X represents at least one of fluorine, chlorine, bromine, or iodine, where 1 ≤ a ≤ 4, 0 ≤ b ≤ 5, 0 ≤ c ≤ 3, 0 ≤ d ≤ 12, and 0 ≤ e ≤ 2. This invention improves the structural stability and conductivity of lithium manganese iron phosphate by coating it with a fast ion conductor and a carbon bilayer, thereby enhancing the cycle life and rate performance of secondary batteries.

This application discloses a zirconium-coated hard-seal plug valve and its welding process, relating to the field of plug valve technology. The plug valve includes: a valve body assembly, a plug assembly, an insulation sleeve assembly, a connecting shaft, an actuator, an electrical control cabinet, and a remote control system. The plug assembly is housed within the valve body assembly. The end of the plug assembly furthest from the valve body assembly is connected to the actuator via the connecting shaft. The end of the actuator furthest from the connecting shaft is sequentially connected to the electrical control cabinet and the remote control system via a transmission line. An insulation sleeve assembly is provided externally to the valve body assembly. This application selects zirconium as the material for the parts of the plug valve that directly contact the medium to achieve corrosion resistance, while using non-zirconium materials for the parts that do not directly contact the medium to save manufacturing costs and without limiting the widespread use of zirconium-coated plug valves.

The present application relates to a lithium-nickel-cobalt-manganese oxide cathode material modified with a zirconium-yttrium composite coating, a method for manufacturing the same, and a lithium-ion battery. The lithium-nickel-cobalt-manganese oxide cathode material modified with a zirconium-yttrium composite coating comprises a lithium-nickel-cobalt-manganese oxide cathode material matrix and a zirconium-yttrium composite coating layer coated on the surface of the matrix, wherein the chemical composition of the zirconium-yttrium composite coating layer is ZrzY1-zO1.5+0.5z and 0.4≤z≤0.8. The present application involves coating a zirconium-yttrium composite coating layer on the surface of a lithium-nickel-cobalt-manganese oxide cathode material matrix. This coating layer has a high oxygen vacancy rate and can rapidly absorb oxygen elements generated by the deintercalation of lithium ions during the electrochemical reaction process and corrosion of the cathode material by the electrolyte, thereby ensuring high-temperature storage and cycle performance of the material.

The present application belongs to the field of copper alloy crystallization wheel preparation, and provides a kind of copper alloy crystallization wheel near net shape manufacturing method, comprising: copper alloy crystallization wheel selects chromium zirconium copper material, each metal material of batching is melted, vacuum centrifugal casting is carried out, and the annular casting blank of crystallization wheel is obtained;The first mechanical processing is carried out to the annular casting blank of crystallization wheel, and the shrinkage and riser of inner ring surface are removed;The annular casting blank of crystallization wheel after mechanical processing is sequentially subjected to hot ring rolling, solid solution heat treatment, cold ring rolling, aging heat treatment, secondary machining, and the present application has the advantages of high material yield, high production efficiency, low production cost, good internal and external performance consistency and high product performance.

This invention relates to the field of battery technology, specifically to a cathode lithium replenishment agent material, its preparation method, and its application. The preparation method of the cathode lithium replenishment agent material of this invention includes the following steps: stirring and milling a mixture of a first lithium source, an iron source, a first carbon source, a dopant containing element M, and a solvent, wherein element M is selected from at least one of nickel, zirconium, and manganese, to obtain a mixed slurry; drying the mixed slurry and performing a first sintering treatment to obtain a first material; mixing the first material with a second lithium source and then performing a second sintering treatment to obtain a second material; mixing the second material with a titanium source and a second carbon source and then performing a third sintering treatment. The method of this invention can reduce the residual alkali content of the material and the degree of corrosion to the crucible, resulting in a cathode lithium replenishment agent material with excellent electrochemical performance, which can improve the initial charge capacity of the battery.

The invention discloses a surface nano oxide dispersion strengthening method for high-strength and high-toughness aluminum alloy powder and a powder material thereof, and relates to the technical field of powder metallurgy materials. Aluminum-zinc-magnesium-copper-zirconium pre-alloyed atomized powder is used as a matrix, and is dispersed by virtue of polyvinylpyrrolidone and anhydrous alcohol; the preparation method comprises the following steps: sequentially introducing magnesium aluminate spinel nanoparticles, optional magnesium oxide nanoparticles and passivated magnesium nanoparticles for dry coating, embedding a nano dot matrix into a surface layer through ceramic ball micro shot blasting, removing organic matters in a vacuum subsection manner, thermally activating at 405-435 DEG C, cooling, and adding zinc micro powder for low-energy coating. The method is suitable for canning degassing, hot isostatic pressing and hot extrusion workpieces. And large-scale production can be realized. The oxide in the obtained powder is converted into intragranular non-communicated dispersion particles from a prior powder boundary communicated interlayer, the boundary connectivity is reduced, the densification combination is improved, the fracture toughness, impact and high-cycle fatigue are remarkably improved, meanwhile, the powder fluidity is kept, and the consistency is improved.

The application discloses a nano-structure thermal protection coating for hydrogen fuel gas turbine and a preparation method thereof. The nano-structure thermal protection coating takes high-temperature alloy as a substrate, and sequentially deposits a bonding bottom layer, a yttrium stabilized zirconium oxide or zirconate intermediate layer and a silicate top layer on the surface of the substrate. The application starts from the design of the coating structure, and aims at the problems of low service temperature and poor water-oxygen corrosion resistance of the existing thermal protection coating for gas turbine. The water-oxygen corrosion resistance function of the silicate material is superimposed on the thermal protection coating for gas turbine, and the coating structure is optimized to form a new thermal protection coating structure resistant to high-temperature corrosion. The new thermal protection coating structure can not only meet more extreme service environments, but also resist water-oxygen corrosion at high temperature. The new thermal protection coating structure is suitable for hydrogen fuel power generation gas turbine, and is also suitable for hydrogen fuel or hydrogen mixed marine engines, hydrogen fuel rocket engines and other hydrogen fuel gas turbines.

DEPCT66 What was revealed was a hot-molded assembly with excellent paint adhesion and resistance. Post-painting corrosion when subjected to electrostatic deposition painting. The zirconium-based chemically conjugated hot-molded components revealed herein include: Steel base plate; a Fe-Zn-Al-Mg based alloy coating containing an alpha-Fe phase. The gamma phase is formed on at least one surface of the base steel plate at a weight of coating material. The surface area is 40-400 g / m²; and an oxide layer containing Zn, Al, and Mg forms on the coating. Fe-Zn-Al-Mg based alloys, where the gamma-I / alpha I ratio is 0.5 or less when measured. By X-ray diffraction using a Co-K alpha radiation source (wavelength: 1.79021 angstroms). At an angle of incidence of 25 degrees, where I gamma is the intensity of the diffraction peak of the plane (411) of the phase. The gamma appearing in the angular range of 41.5 degrees is less than or equal to 2 theta less than or equal to 43.0 degrees, and alpha is the peak intensity. The plane diffraction (110) of the alpha-Fe phase appearing in the angular range of 51.0 degrees is less than or equal to 2 theta, less than or equal to 52.0. The degree, and the sum of the concentrations of Al and Mg in the oxide layer, is 28 percent by atom. Or more -----------------------------------------------------------

The present application belongs to the technical field of tire manufacturing, and particularly relates to an antiskid tire and a preparation method thereof. The antiskid performance of the tire is significantly improved by adding cerium-doped polyoxometalate-based layered compounds and nitrogen-sulfur co-modified zirconium-based MXene layered compounds in the tread compound. The cerium-doped polyoxometalate-based layered compounds are prepared by hydrothermal reaction and calcination treatment using disodium hydrogen phosphate, sodium molybdate, cerium nitrate and hexanediamine as raw materials. The nitrogen-sulfur co-modified zirconium-based MXene layered compounds are prepared by etching, peeling and co-calcination with thiourea after synthesizing ceramics using titanium powder, aluminum powder, zirconium powder and carbon powder as raw materials. When preparing the tire, the rubber is first mixed with carbon black, the two modified compounds and the additives to obtain a masterbatch, then the vulcanization system components are added to obtain a final rubber compound, and finally the finished product is obtained through extrusion, lamination and vulcanization molding. The antiskid tire prepared by the present application has excellent grip on wet and icy road surfaces.

The application provides a method for determining the content of Zr metal ions in a high-purity volatile organic matrix environment by ICP-MS, comprising the following steps: (1) based on the volatile nature of the organic matrix, replacing the sampling system and debugging the instrument parameters; (2) acidifying the volatile organic matrix to be tested; (3) testing on the machine; (4) according to the generated standard curve, reading out the content of the metal ion Zr in the high-purity reagent IPA. The method directly and effectively improves the problem that the direct sampling ICP-MS cannot pull out the Zr element standard curve and thus cannot read out the content of Zr in IPA; meanwhile, the pretreatment method of the method is an acidification method, which is simple to operate and low in time cost; and the standard addition method can eliminate the matrix interference, realize the detection of the metal ion Zr under the high-purity matrix, and meet the production demand.

This invention provides a molybdenum alloy and its preparation method, relating to the field of powder metallurgy materials technology. The molybdenum alloy, by mass percentage, comprises the following components: rare earth element (RE): 0.045wt%-0.1wt%, zirconium salt: 0.15wt%-0.20wt%, with the balance being Mo. The preparation method of the molybdenum alloy includes: heating and stirring rare earth salts, zirconium salts, and water to obtain a mixed solution; continuously spraying the mixed solution onto the surface of stirred molybdenum oxide powder using a high-pressure spraying device to obtain a spray-coated mixed powder; drying and calcining the spray-coated mixed powder to obtain rare earth-doped molybdenum oxide powder; and reducing and sintering the rare earth-doped molybdenum oxide powder to obtain the molybdenum alloy. This invention improves the strength and plasticity of sintered molybdenum alloys, eliminating the need for subsequent plastic processing steps.

The present application relates to the technical field of glaze, and particularly relates to a composite zircon white opal frit, a preparation method thereof, super-white glaze using the composite zircon white opal frit and ceramic tile. The raw materials of the composite zircon white opal frit include, in terms of weight parts, quartz 25-40 parts, calcined alumina 5-10 parts, potassium feldspar 20-35 parts, talc 3-10 parts, calcite 5-10 parts, calcium phosphate 5-10 parts, calcined shell 1-5 parts, zirconium boride 7-15 parts, zirconite sand 3-10 parts, kaolin 1-5 parts and zinc oxide 3-10 parts. The raw materials of the composite zircon white opal frit described above can make the composite zircon white opal frit have a high whitening effect; meanwhile, two cooling and holding processes are adopted in the cooling and holding stage, the content of SiO2, P2O5 and MgO in the chemical composition of the composite zircon white opal frit is adjusted, a large amount of fine needle-like MgSiO3 can be generated, and the opalescence and whiteness of the glaze are improved after the obtained composite opal frit is used in the glaze.