32 results about "Zirconium disulfide" patented technology

The invention relates to titanium-dioxide-coated zirconium dioxide powder and a preparation method thereof, and belongs to the technical field of powder engineering. The inner core of the powder is monoclinic zirconium dioxide, and the coating layer of the powder is titanium dioxide. The problem that sintering densification of zirconite / zirconium oxide multi-phase materials is difficult in the prior art is solved. The temporary high-concentration titanium dioxide can be provided around zirconium oxide particles, sintering of zirconite and interface compatibility between the zirconium dioxide and the titanium dioxide are promoted, the sintering performance of the multi-phase materials can be effectively improved, and the porosity of the multi-phase materials is lowered. The preparation method of the titanium-dioxide-coated zirconium dioxide powder comprises the steps that the surfaces of the zirconium oxide particles are coated with a layer of titanium dioxide, then heat treatment is carried out to make the surfaces of the zirconium oxide particles to be tightly coated with the titanium dioxide, and therefore the titanium-dioxide-coated zirconium dioxide powder is obtained. The preparation technology is easy to implement, and industrial production is easy to achieve.

The invention relates to a zirconium dioxide doping modifying barium strontium titanate-MgO based (Ba1-xSrxTiO3 / MgO) compounding material and the manufacture method. The basal body is barium strontium titanate and MgO. Trace quantity of zirconium dioxide is doped in to modify. The constitutes are (1-y)Ba1-xSrxTiO3+yMgO+zZrO 2, of which 0.35<=x<=0.45, y=50wt%, Owt%1-xSrxTiO3(BSTO) powder from BaCO3, SrCO3, and TiO2; mixing the powder with MgO and ZrO2 to make compounding material. The result shows zirconium dioxide doping sharply increases the adjustability of dielectric constant, and has low dielectric constant, low microwave consumption, etc.

The present invention discloses a ferrozirconium red material, which is prepared from the following raw materials: silicon dioxide, an iron compound, a mineralizer, a rare earth fluoride, and zirconium dioxide. According to the present invention, the ferrozirconium red material prepared according to the formula has the following characteristics that: the wrapping rate is high, and ion is wrapped into the zirconium silicate crystal lattice in the ferric ion form so as to achieve stable color generation; and the active zirconium dioxide is adopted, and the rare earth fluoride is introduced, such that the prepared ferrozirconium red material has a good coloration effect.

The invention relates to a preparation method for a high-temperature-resistant laminated composite zirconium dioxide-niobium material. The preparation method comprises the following steps: preprocessing of a niobium sheet, zirconium plasma injection, drawing of a zirconium dioxide film on the surface of the niobium sheet through the sol-gel method, and high-temperature sintering. The invention has the advantages that through the vacuum metal plasma injection technology, the metallic element zirconium is injected into the pickled and etched niobium metal test sheet according to a certain amount of energy and dosage, so as to solve the problem that the zirconium dioxide film easily cracks due to the large differences between niobium and zirconium dioxide in ion size as well as between coefficients of thermal expansion; the niobium metal test sheet is covered by the zirconium dioxide film through the vertical drawing method of a zirconium sol-gel solution; the niobium sheet and the zirconium dioxide film are subjected to high-temperature annealing and sintering together to prepare the high-temperature-resistant laminated composite zirconium dioxide-niobium material. According to the composite zirconium dioxide-niobium material, the niobium sheet and the zirconium dioxide film are directly compounded in a laminated manner, so that the high-temperature-resistant property of the niobium sheet and the zirconium dioxide film is preserved. Therefore, the composite zirconium dioxide-niobium material achieves a very good application potential in the high-temperature field.

The invention relates to a preparation method of zirconium dioxide powder, comprising the following steps: A. dissolving zirconium oxychloride into deionized water, and controlling mass ratio of the zirconium oxychloride and the deionized water to be 4:(21-35); B. dropwise adding ammonia water into mixed solution in the step A, and controlling mole ratio of the ammonia water and the zirconium oxychloride to be (1.8-3.7):1; C. carrying out washing, pressing and filtering or centrifugal separation on zirconium hydroxide hydrogel in the step B to obtain zirconium hydroxide gel; D. drying the zirconium hydroxide gel of the step C to obtain zirconium hydroxide, and calcining the zirconium hydroxide to obtain zirconium dioxide; E. mixing the zirconium dioxide in the step D with grinding medium and water and carrying out wet grinding on the mixture; and F. drying the zirconium dioxide slurry in the step E to prepare the zirconium dioxide powder. The zirconium dioxide powder product produced by the method has good particle monodispersity, complete particle form, concentrating distribution of particle size, high purity and controllable particle size and can realize low cost when in large-scale production of the zirconium dioxide.

The invention discloses a glass inner container for the electric cooker which is made of silica dioxide, aluminum oxide, zirconium dioxide and boric oxide, wherein the silica dioxide is the basic raw material, the weight percentage of the raw material is that the silica dioxide is of 70-80%, the aluminum oxide is of 1-3%, the zirconium dioxide is of 3-8% and the boric oxide is of 10-20%. The producing method of the glass inner container for the electric cooker is that A: the raw material is prepared proportionally; B: the prepared raw material is mixed evenly by a mixing machine; C: the raw material which is mixed evenly is sent into the dissolution pool and is heated to the temperature of 1400-1600 DEG C, thus forming glass liquid; D: the glass liquid is sent into the working pool to carry out depositing and filtering disposal; E: the glass liquid is sent to the formed press mold and is produced into an end product. The glass inner container produced by the adopted art is thermostable, beautiful in appearance, convenient in cleaning, and the glass product meets the demand of the human and the current society for different aspect of the product such as health, environment protection and so on.

The invention discloses preparation processes of zirconium tetrachloride and zirconium dioxide. The preparation process of zirconium tetrachloride comprises the following steps that 1, zircon sand, acarbon reducing agent and chlorine are added into a primary fluidizing chlorination furnace, heating is performed, primary chlorination reaction is performed to generate zirconium tetrachloride, silicon tetrachloride, carbon monoxide and carbon dioxide, and a first gas mixture is obtained; 2, the carbon monoxide is separated from the first gas mixture and is introduced into a secondary fluidizingchlorination furnace, the zircon sand and the chlorine are added into the secondary fluidizing chlorination furnace, heating is performed, secondary chlorination reaction is performed to generate zirconium tetrachloride, silicon tetrachloride and carbon dioxide, and a second gas mixture is obtained. The primary chlorination reaction and secondary chlorination reaction in the process can promote reaction of CO serving as a reducing agent, the CO having reducing potential and produced by the primary chlorination reaction can be fully and effectively utilized by coupling the primary chlorinationreaction and the secondary chlorination reaction, the input of reaction raw materials in the whole process is reduced, accordingly the production cost is reduced, and discharge of greenhouse gas is decreased.

The invention relates to a preparation method of zirconium / aluminum trioxide compound powder which has anti-oxidant property and easily-sintered surface which is coated by nanometer rare earth oxide. The method is characterized in that the method includes the steps as follows: 1), balling-milling zirconium dioxide ZrO2, diboron trioxide B2O3 and metal Aluminum Al powder uniformly and molding and shaping, placing in a self-propagating high temperature synthesizer at room temperature under the protection of argon, igniting and burning, and obtaining high pure ZrB2 / Al2O3 ceramic compound powder after combustion products are grinded; 2) adding the ZrB2 / Al2O3 ceramic compound powder in rare earth salt solution, mixing into uniform slurry, drying and obtaining the compound powder of precursor ZrB2 / Al2O3 compound powder with the rare earth oxide coating layer; 3) sintering the compound powder at high temperature to obtain a final product. The invention has the advantages of simple operation, convenience and little energy and time consumption. The synthesized powder has the advantages of high purity, small grain, sintering easiness and good high temperature oxidation resistance.