191 results about "Zirconium dioxide" patented technology

The present disclosure provides a new wet atomic layer etch (ALE) process for etching high-k dielectric materials. More specifically, the present disclosure provides various embodiments of methods that utilize new etch chemistries for etching transition metal oxide dielectric materials in a cyclic wet ALE process. In the example embodiments provided herein, new etch chemistries and methods are provided for etching zirconium dioxide (ZrO2), hafnium dioxide (HfO2) and HfxZr(1-x)O2 dielectrics in a cyclic wet ALE process. However, the wet ALE techniques described herein are not strictly limited to the example materials discussed herein and can be applied to other transition metals and transition metal oxides.

The invention discloses a high-aluminum wear-resistant ceramic grinding ball and a preparation method thereof. The grinding ball comprises the following raw materials in percentage by weight: 85%-95% of aluminum oxide, 2%-10% of silicon dioxide, 1%-3% of calcium carbonate, 0.2%-0.5% of magnesium carbonate, 0.03%-0.05% of titanium dioxide, 0.01%-0.03% of sodium oxide and 1%-5% of modified zirconium dioxide. The preparation method of the modified zirconium dioxide comprises the following steps: adding hydrogen peroxide into a mixed solution of soluble cerium salt and soluble zirconium salt to obtain a reaction system; adding the reaction system into an alkaline solution for reaction, and collecting an insoluble substance after the reaction is finished; and calcining the insoluble substance to obtain the modified zirconium dioxide. The ceramic ball is simple in formula, rich in raw materials, low in price and low in production cost, the operation stability of the ceramic ball is improved, and the service life is prolonged.

The invention relates to preparation of a ZTA composite ceramic material, and belongs to the field of inorganic nonmetal composite materials. The raw material composition formula comprises aluminum oxide, zirconium oxide, zirconium dioxide, yttrium oxide, magnesium oxide and titanium dioxide. The low-sodium microcrystalline alumina powder with the original grain size of 0.40 [mu] m is selected and ground to the original grain size in advance, so that zirconia can be more uniformly distributed between alumina grain boundaries, which is a precondition for obtaining more uniform ZTA. Zirconium dioxide is creatively introduced, and compared with a conventional method in which stable zirconium oxide is directly used, the cost of ZTA is greatly reduced. The pre-calcined granulation powder is adopted, so that a ZTA product which is uniformly mixed in the early stage is cured by adding a stabilizer, and then the uniform and stable ZTA ceramic can be obtained through later-stage forming and firing.

The invention relates to a base metal high-voltage multilayer ceramic dielectric capacitor and a preparation method, the base metal high-voltage multilayer ceramic dielectric capacitor is formed by stacking and firing dielectric layers, and each dielectric layer comprises a dielectric layer and an electrode printed on the dielectric layer. The dielectric layer comprises the following raw materials: a BMYT main matrix, an NN material, magnesium oxide, manganous-manganic oxide, zirconium dioxide, calcium carbonate, strontium carbonate and rare earth oxide; through the raw material composition and the preparation method of the ceramic dielectric capacitor, the prepared ceramic dielectric capacitor has excellent performances of high dielectric constant, high voltage resistance, stable dielectric-temperature characteristic curve, low loss, high insulation resistance, long-term high-voltage reliability and the like under the condition of high dielectric thickness (30 microns before firing).

The invention relates to the technical field of getters, and discloses a getter for a vacuum insulated panel and a preparation method of the getter. The getter for the vacuum insulated panel comprises the following components in percentage by mass: 55-65% of calcium oxide, 12-18% of activated aluminum oxide, 6-8% of manganese dioxide, 4-6% of copper oxide, 3-5% of yttrium oxide, 5-7% of zirconium dioxide and 1-2% of chromium powder. The preparation method of the getter comprises the following steps: S100, carrying out ball milling treatment on calcium oxide, activated aluminum oxide, manganese dioxide, copper oxide, yttrium oxide, zirconium dioxide and chromium powder to obtain powder, and drying the powder; s200, mixing the dried powder with deionized water and polyvinyl alcohol, and drying to prepare porous spherical particles; s300, after gradient sintering is conducted on the porous spherical particles, rapid cooling is conducted, and particles of a multi-stage pore channel structure are obtained; and S400, dipping the particles with the hierarchical porous structure in a chromic acid solution, and drying to obtain the getter. According to the technical scheme, the technical problems of low efficiency and insufficient adsorption capacity of a getter in the prior art are solved.

The invention discloses ultralow-loss manganese zinc ferrite and a preparation method thereof, and belongs to the technical field of ferrite soft magnetic materials. The ultralow-loss manganese zinc ferrite comprises the following raw materials: a main component, a first additive and a second additive, the main components comprise Fe2O3, ZnO and MnO; the first additive comprises one or more of SiO2 (silicon dioxide), TiO2 (titanium dioxide) and ZrO2 (zirconium dioxide); and the second additive is prepared from one or more of CaCO3, Co3O4, CuO and Al2O3. According to the invention, through step-by-step addition of the specific additives, comprehensive and effective reduction of the loss of the manganese-zinc ferrite core is finally realized, and the performance goal of ultra-low loss is achieved.

The utility model discloses a zirconium dioxide false tooth polishing device, which relates to the technical field of false tooth polishing, and comprises a mounting main body, and further comprises a sealing door which is arranged on the mounting main body and is rotationally connected with the mounting main body; the placing groove is formed in the mounting main body and is fixedly connected with the mounting main body; the dust storage barrel is arranged in the placing groove and is used for collecting dust; the grip is arranged on the mounting main body and is fixedly connected with the mounting main body; the polishing mechanism is arranged on the mounting main body; and the dust collection mechanism is arranged on the mounting main body and the polishing mechanism. According to the device, by arranging the dust collection mechanism, dust generated in the grinding work can be cleaned in time, the cleanliness of the working environment and the safety of workers are guaranteed, meanwhile, dust on false teeth is cleaned in time, and the judgment on the cleaning degree of the surfaces of the false teeth can be more accurate during working.

This invention belongs to the field of glass technology and relates to a high-temperature resistant structural glass material, its preparation method, and its applications. The glass is composed of the following components by mass percentage: 60%-70% silicon dioxide, 5.5%-11% boric acid, 0.1%-5% aluminum hydroxide, 0%-3% potassium nitrate, 5.5%-13% potassium carbonate, 0%-12% sodium carbonate, 0.1%-4% calcium carbonate, 0%-2% calcium fluoride, 0%-1% lithium carbonate, 0%-2% basic magnesium carbonate, 0.1%-1% titanium dioxide, 0%-2% zirconium dioxide, and 0%-1% cerium dioxide; the total mass percentage of potassium nitrate, potassium carbonate, sodium carbonate, and lithium carbonate does not exceed 22%. This structural glass possesses a high softening temperature, a suitable coefficient of thermal expansion, high-temperature resistance, thermal shock resistance, and processing performance, making it suitable as a structural material for optoelectronic devices.

This invention discloses a high-strength ceramic valley-peak structured corrugated filler, the raw materials of which include clay, kaolin, potassium feldspar powder, cordierite powder, zirconium dioxide powder, reinforcing granular powder, bauxite, and a binder. The corrugated filler material prepared by the method described in this invention has good strength, making it less prone to breakage during stacking or use, thus improving the usability and durability of the corrugated filler.

The invention discloses a four-phase composite ceramic heating element and a preparation method thereof, and relates to the technical field of ceramic heating materials, the composite ceramic heating element comprises the following components: 30%-40% of titanium diboride, 30%-40% of titanium carbide, 10%-28% of silicon carbide, 1%-12% of hexagonal boron nitride, 0.5%-3% of nano zirconium dioxide and 1%-4% of silicon nitride. A four-phase composite system of TiB2 (titanium diboride), TiC (titanium carbide), SiC (silicon carbide) and hBN (hexagonal boron nitride) is constructed, basic expansion reduction is achieved through the low expansion characteristic of SiC, thermal expansion mismatching stress between different phases is dispersed in combination with the interface regulation and control effect of an h-BN layered structure, compared with an existing ternary system, the minimum thermal expansion coefficient is reduced to 5.8 * 10 <-6 > K <-1 >, and the thermal expansion coefficient is reduced to 5.8 * 10 <-6 > K <-1 >. And the interfacial compatibility is remarkably improved, and thermal stress is prevented from being gathered at the interface.

The invention relates to the technical field of fibers, and discloses a heating temperature-regulating fiber and a preparation method thereof. A photo-thermal material graphene-loaded zirconium dioxide composite material is prepared and is introduced into a phase-change material as a light-absorbing and heating material, a photo-thermal heat storage additive with good heat resistance is prepared, the photo-thermal heat storage additive and a compatilizer maleic anhydride grafted polypropylene are jointly added into polypropylene slices for melt spinning, and the prepared fiber has light-absorbing and heating and energy-storage and temperature-regulating properties; maleic anhydride grafted polypropylene is introduced, carboxyl of the maleic anhydride grafted polypropylene can react with epoxy groups of the photo-thermal heat storage additive under the melting condition, the maleic anhydride grafted polypropylene is used as a compatilizer to improve the compatibility among the components, and meanwhile, the moisture absorption performance of the fiber is also improved due to the introduction of the carboxyl.

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.

The invention discloses a glass surface multifunctional coating structure as well as a preparation method and application thereof, and belongs to a functional inorganic thin film technology. The method specifically comprises the following steps: firstly, coating a glass substrate with hollow silicon dioxide nanosphere sol to form an initial coating; the acidified hard component sol and the acidified hydrophilic component sol are uniformly mixed, the hard component sol adopts aluminum oxide sol, zirconium dioxide sol or cerium dioxide sol, and the hydrophilic component sol adopts titanium dioxide sol, zinc oxide sol or tin dioxide sol; and coating the surface of the glass substrate containing the initial coating with the mixed sol, carrying out heat treatment annealing, and finally obtaining a compact and stable multifunctional composite coating structure on the surface of the glass. Through a porous framework and inorganic binding phase composite structure, high light transmittance, high mechanical strength and a self-cleaning function are synergistically realized, and the problem that the performances are difficult to balance in the prior art is solved.

Provided are zirconium-based oxides that are colored, e.g., not white or off-white, without inclusion of a pigment, such as by controlling the bandgap of the oxide material to, e.g., less than about 4eV. The oxide preferably includes cubic and / or tetragonal Zirconium Dioxides. Also provided are methods for preparing coatings from such oxides, methods of preparing coatings that comprise such oxides, and to coatings that comprise such oxides.

The invention discloses a dual-band reflection optical film system and an optical lens. The film system comprises seven layers of all-dielectric optical films which are a trititanium pentoxide layer, a silicon dioxide layer, a trititanium pentoxide layer, a silicon dioxide layer, a zirconium dioxide layer, a trititanium pentoxide layer and a silicon dioxide layer in sequence, the reflectivity of the film system in the blue light band of 385-445 nm is 20-35%, the reflectivity in the near-infrared band of 780-1400 nm is larger than or equal to 40%, the reflectivity in the visible light band of 500-780 nm is smaller than or equal to 1%, and the film system is of an absorption-free structure. The film system is designed based on an all-dielectric pure interference structure, accurate regulation and control of multiband spectrums are achieved in a single film system, and the film system has the three characteristics of short-wave blue light blocking, near-infrared efficient heat insulation and extremely high visible light transmission. The invention fundamentally overcomes the technical bottlenecks of single function, heat accumulation caused by photo-thermal conversion, light transmittance damage and the like of the traditional absorption type protective lens, and is suitable for various visual protection products with strict requirements on color rendition degree and thermal protection.

The invention relates to the technical field of dust removal, in particular to a high-hardness and washable electrostatic dust removal electrode and a preparation method and application thereof. The electrostatic dust collection electrode comprises an electrode body and a coating arranged on the surface of the electrode body, the preparation raw materials of the coating comprise a photocureable coating and an inorganic filler; the inorganic filler comprises at least one of silicon dioxide and zirconium dioxide. The surface of the electrostatic dust collection electrode is provided with the coating jointly formed by the photocureable coating and the inorganic filler, the problem of surface arcing of the electrostatic dust collection high-voltage electrode is solved, the coating has excellent surface hardness and wear resistance, the hardness and wear resistance of the coating are improved, and after the electrostatic dust collection electrode is washed for multiple times, the electrostatic dust collection electrode is not prone to falling off. And the good purification efficiency is still kept.

The invention provides a super wear-resistant self-cleaning road marking coating and a preparation method thereof, and the super wear-resistant self-cleaning road marking coating is prepared from the following raw materials in parts by weight: 35-43 parts of oily acrylic resin emulsion, 8-10 parts of porous structure zeolite powder, 20-25 parts of ground calcium carbonate, 8-10 parts of titanium dioxide, 4-5 parts of modified nano titanium dioxide, 4-5 parts of modified nano zirconium dioxide and 1-3 parts of polytetrafluoroethylene micro powder. The repairing agent is prepared from the following components in parts by weight: 1-2 parts of silicon carbide whiskers, 0.3-0.5 part of a rheological additive, 0.4-0.8 part of a composite dispersant, 1.4-2 parts of dibenzoyl peroxide, 0.5-0.8 part of a wetting agent and 5-6 parts of a fluorinated repairing agent. Part of the fluorinated modifier is loaded in pores of the porous structure zeolite powder, and the rest part of the fluorinated modifier is dispersed in the coating. The technical bottlenecks of insufficient wear resistance, easy attenuation of self-cleaning performance, incapability of maintaining the self-cleaning performance under wear and the like of the existing road marking paint are overcome.

The invention relates to the technical field of AR / VR optical waveguides, in particular to high-refractive-index nanoimprint glue and a preparation method thereof, and the high-refractive-index nanoimprint glue comprises a solvent, a photoinitiator and a high-refractive-index component; the high refractive index component comprises nano zirconium dioxide and acrylic resin. Compared with the existing product, the coining nano-imprinting glue has higher refractive index, the refractive index tested by an ellipsometer after the solvent is removed is 1.785 (589 nm), and the refractive index of the conventional coining nano-imprinting glue of which the refractive index is increased by nano zirconium dioxide is less than 1.75 (589 nm).

The application discloses an expanding root canal filling medical device combination based on a dental root tip biological seal and application. The medical device combination comprises a sealant combination and a titanium material root canal plug tip, the sealant combination is composed of liquid agent, A component powder and B component powder which are mutually isolated before use, the A component powder comprises 75-95% of tricalcium silicate and 5-25% of beta tricalcium phosphate, the B component powder comprises 45-55% of nano zirconium dioxide, 44.7-52% of calcium hydroxide and 0.3-3% of calcium oxide; a root canal section surface of the root canal plug tip is provided with a horizontal screw thread, a screw thread groove of the screw thread is used for filling the prepared sealant, and a crown section surface is provided with a retaining groove section. The medical device combination solves the problems of root canal treatment failure or poor long-term curative effect caused by volume shrinkage after filling of the existing sealant and gutta-percha tip, and can realize high safety, high biocompatibility, high quality and high density root canal filling.

This invention discloses a method and application for the industrial-scale preparation of zirconium-based composite nano-metal oxides based on MOF morphology, belonging to the field of zirconium-based multi-component composite material preparation and its application in new energy batteries. Porous zirconium dioxide is obtained by reacting 2-aminoterephthalic acid with zirconium oxychloride followed by pyrolysis to create pores. Then, a soluble salt containing magnesium, iron, and aluminum is uniformly precipitated into the reactant to prepare a zirconium-based ternary precursor material. Finally, the product is obtained through rapid plasma sintering. This method, based on MOF morphology inheritance and multi-level structure design of composite oxides, innovatively synthesizes a novel nano-additive for lithium-ion batteries. The zirconium-based composite nano-metal oxide product prepared by this invention exhibits uniform particle morphology distribution, high sphericity, and a high specific surface area. Furthermore, when used as a cathode material additive, this zirconium-based composite nano-metal oxide can improve the electrochemical performance of ternary lithium batteries.

The invention provides a synthesis method of a high-purity hafnium-zirconium metal complex precursor, and belongs to the technical field of high-dielectric-constant materials for super-large-scale integrated circuits. According to the method, hafnium tetrachloride or zirconium tetrachloride is used as a metal source and sequentially reacts with dialkylamine, n-butyllithium and an alkyl magnesium halide Grignard reagent through a one-pot method in a high-purity inert atmosphere, an intermediate does not need to be separated, and a target precursor is obtained after filtration, washing and rectification. The method is simple and convenient in process operation, mild in reaction condition and low in energy consumption; the raw materials are wide in source and low in price, the product yield reaches 82%-88%, and the metal purity is stabilized to be 6N; when the precursor is used for preparing a hafnium oxide / zirconium thin film through atomic layer deposition (ALD), the thickness of the thin film reaches 14.3 nm under 100 cycles, the non-uniformity is smaller than or equal to 0.90%, the requirement of a gate dielectric layer of a super-large-scale integrated circuit for a high-purity and high-efficiency precursor can be met, and the precursor is suitable for industrial amplification production.

The invention belongs to the technical field of heat storage materials, and particularly discloses a preparation method of high-thermal-conductivity anti-sintering basalt-based solid heat storage particles, which comprises the following steps: crushing basalt ore, and carrying out wet grinding for 2 hours by using a ball mill; adding basalt particles into a high-speed mixer, spraying a sodium silicate aqueous solution, and stirring; adding crystalline flake graphite; adding nano zirconium dioxide powder into the mixer, and adding a polyvinyl alcohol aqueous solution; and carrying out compression molding by using a four-column hydraulic press to obtain green body particles, putting the green body particles into a roller kiln, and carrying out segmented sintering to obtain solid particles with different particle sizes. According to the preparation method of the high-thermal-conductivity anti-sintering basalt-based solid heat storage particles, the preparation method of gradient particle size ratio, graphite-zirconium dioxide compound modification and low-temperature sintering is adopted, so that the thermal conductivity, the sintering resistance and the mechanical strength of the heat storage particles are synchronously improved on the basis of keeping the advantage of low cost of basalt; the pains in the prior art are solved.

The utility model discloses a protection device for high-temperature crystal growth, which comprises a tray, a first zirconium oxide heat preservation cover is fixed at the top of the tray, positioning insertion holes which are distributed at equal intervals are formed in the periphery of the top of the first zirconium oxide heat preservation cover, and a second zirconium oxide heat preservation cover of which the bottom is welded with a positioning insertion rod is inserted into the inner wall of each positioning insertion hole; a zirconium oxide sealing cover is arranged at the top of the second zirconium oxide heat preservation cover, and a positioning circular groove is formed in the inner wall of the bottom of the first zirconium oxide heat preservation cover; the iron-chromium-aluminum alloy hoops are arranged outside the first zirconium oxide heat preservation cover and the second zirconium oxide heat preservation cover respectively to reinforce the first zirconium oxide heat preservation cover and the second zirconium oxide heat preservation cover, and iron-chromium-aluminum alloy has high melting point and resistivity, is not prone to induction heating and can serve as hooping materials on the outer sides of the heat preservation covers. Therefore, the thermal shock resistance and the thermal insulation effect of the thermal insulation cover are enhanced, and the phenomenon that the first zirconium oxide thermal insulation cover and the second zirconium oxide thermal insulation cover crack at high temperature is avoided.

The invention relates to a low-temperature anti-reflection PMMA composite film for a flexible display polarizer and a preparation method thereof.The PMMA composite film comprises a PMMA optical film, and the PMMA optical film comprises, by mass, 48.0%-58.0% of methyl methacrylate, 1.5%-3.0% of a cross-linking agent a, 1.0%-4.5% of functional nanoparticles, 0.5%-1.8% of an initiator a and 30.0%-42.7% of a solvent a; the functional nano particles are nano silicon dioxide or nano zirconium dioxide of which the surfaces are grafted with specific groups. By constructing the bulk phase organic-inorganic covalent network, the film material has high light transmittance, low haze, low water vapor transmittance, low thermal expansion coefficient and excellent bending reliability, is compatible with an R2R continuous process, and is adaptive to the requirements of flexible display polarizers.

The invention provides a holographic polymer dispersed liquid crystal material, a grating device and a preparation method thereof, in a holographic polymer dispersed liquid crystal material system, uniformly dispersed zirconium dioxide nano-particles are introduced into a writing monomer according to a specific proportion, and the zirconium dioxide nano-particles are used as a nano reinforced phase to be stably combined with a photopolymer matrix; the composition and proportion of the writing monomers are synergistically optimized, and the multiple beneficial effects of improving the thermo-oxidative aging resistance of the grating device, enhancing the grating structure stability and improving the diffraction efficiency are synchronously achieved through material compounding and structure strengthening. Specifically, in the preparation process, a PGME dispersion liquid of zirconium dioxide nanoparticles and a writing monomer are preferentially and uniformly mixed, and a PGME solvent is removed by virtue of a rotary evaporation technology, so that highly uniform and stable pre-dispersion of the nanoparticles in a writing monomer matrix is realized; the problems of agglomeration and sedimentation possibly caused by compatibility difference in the subsequent integral mixing and polymerization process of the nano-particles are prevented.

This invention discloses a high-performance lithium aluminum silicon glass for aerospace applications and its preparation process, belonging to the field of glass technology. The lithium aluminum silicon glass composition, based on the mass percentage of the compounds, contains: Al₂O₃ 11.5-12.5%, Li₂O 3-4%, Na₂O 11-11.5%, B₂O₃ 2-3%, Y₂O₃ 2-3%, Ag₂O₃, and... + @ZrO2 2-3%, P2O5 1-1.5%, MgF2 0.3-0.5%, SiO2 balance, the sum of the mass percentages of all components is 100%; the Ag + @ZrO2 is porous zirconium dioxide loaded with silver ions. This invention obtains aluminosilicate glass with high strength, high light transmittance and antibacterial properties by adjusting the composition of lithium aluminosilicate glass raw materials and strengthening process. The four-point bending strength is ≥665MPa, the light transmittance is ≥90.3% and the antibacterial performance is over 98%.

This invention provides a fiber transition material for fiber-to-waveguide coupling in optoelectronic interconnection and its preparation method, relating to the fields of optical communication and optoelectronic interconnection technology. The fiber transition material includes a refractive index gradient segment along the light propagation direction. Within this gradient segment, the local content of phenyl acrylate monomers and surface-modified titanium dioxide and zirconium dioxide nanoparticles continuously varies along the light propagation direction. By constructing a continuously varying refractive index gradient segment along the light propagation direction between the fiber end face and the waveguide coupling end, and by controlling the local content of phenyl acrylate monomers and surface-modified titanium dioxide and zirconium dioxide nanoparticles, the refractive index continuously transitions from 1.448-1.462 to 1.498-1.532. This continuous gradient structure eliminates step interface reflection and scattering, reduces coupling insertion loss, and improves the coupling efficiency and stability of the optoelectronic interconnection structure.

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 discloses a kind of bifunctional magnetic nano material and its preparation method and application.The nano material described in the application is Fe3O4@ZrO2@TiO2@mSiO2-L-Cys, with spherical structure;The material includes successively from inside to outside: the inner core is the magnetic nanoparticle of ferriferrous oxide;Intermediate layer is zirconium dioxide and titanium dioxide composite metal oxide layer;Sub-outer layer is mesoporous silica layer;The outermost layer is the L-cysteine molecular layer grafted by zirconium-sulfur chemical bond;The preparation method described in the application adopts solvothermal method to synthesize magnetic core, functional layer is coated by hydrothermal reaction, co-condensation method constructs mesoporous shell, and hydrophilic group is introduced by chemical grafting.The bifunctional magnetic mesoporous nano material prepared in the application is applied to the effective enrichment of glycopeptide and phosphopeptide in standard protease solution mixture, and the detection sensitivity of phosphopeptide and glycopeptide reaches 1 fmol / μL, which has wide prospect in glycopeptide and phosphopeptide proteomics analysis research.