31results about How to "High preparation temperature" patented technology

The invention provides a manufacturing method of a flexible display device. In the manufacturing method, a water and oxygen barrier layer is directly arranged on a flexible polymer substrate, and then arranged on an organic light-emitting diode in a bonding manner, so that the film-forming compactness of the inorganic barrier layer can be improved, and accordingly the water vapor and oxygen permeation preventing capability of the water and oxygen barrier layer is improved, degradation and deterioration of various materials in the organic light-emitting diode are prevented and the service life of the flexible display device is prolonged; the manufacturing process of the organic light-emitting diode and the manufacturing process of the water and oxygen barrier layer are not required to be sequentially carried out, the water and oxygen barrier layers on a first flexible polymer substrate and a second flexible polymer substrate can be manufactured synchronously or manufactured on the same flexible polymer substrate, and a cutting process is performed as required, so that a production process can be simplified and purposes of improving the production efficiency and reducing the cost are achieved. The invention further provides the flexible display device manufactured by the manufacturing method. The flexible display device is relatively long in service life.

The invention discloses a silicon nitride fiber reinforced silicon dioxide ceramic based composite and a preparation method and application of the silicon nitride fiber reinforced silicon dioxide ceramic based composite. The silicon nitride fiber reinforced silicon dioxide ceramic based composite comprises an Si3N4 fiber prefabricate and an SiO2 ceramic base, and the SiO2 ceramic base is evenly put in holes of the Si3N4 fiber prefabricate. The preparation method comprises the following steps: (1) removing a binder from the Si3N4 fiber prefabricate in the vacuum or inertia atmosphere; (2) preparing an Si3N4 / SiO2 composite intermediate through the processes of impregnating in vacuum, drying a gel and sintering; and (3) decarbonizing thermally in the aerobic environment. The composite has the advantages of high temperature resistance, ablation resistance, scouring resistance, excellent oxidation resistance, strong carrying capacity and excellent dielectric property, and has an excellent application value in the field of high temperature wave transmitting material; and the preparation method is simple in process and relatively low in cost and is suitable for industrial production.

The invention relates to a method for preparing a nano compound diamond-like carbon coating, which is realized in a way that: glow discharge is produced by using a medium-frequency magnetic-control sputtering target; argon and excessive hydrocarbon gases are introduced, so that the metal on the target surface reacts with the hydrocarbon gases to produce metallic carbides; when the argon ions bombard the target surface, the target surface sputters the metallic carbides; strong plasma produced by the glow discharge of the target surface ionize the hydrocarbon gases, so that the hydrocarbon gases produce highly-ionized carbon ions; and the carbides sputtered from the target surface and the highly-ionized carbon ions produced from the hydrocarbon gases form a high-hardness carbide-doped nano compound diamond-like carbon coating on a workpiece surface. The coating prepared by the invention has the characteristics of high hardness, strong adhesive force, high growth speed, high production efficiency, low depositing temperature, low production cost, simple equipment structure and the like; and diamond-like carbon coatings with different thicknesses can be prepared on hard alloy, high-speed steel and various other workpieces.

The invention discloses a silicon nitride fiber-enhanced silicon dioxide and boron nitride ceramic matrix composite and a preparing method and application thereof. The silicon nitride fiber-enhanced silicon dioxide and boron nitride ceramic matrix composite is prepared from a Si3N4 fiber prefabricated member, a SiO2 ceramic matrix and a BN ceramic matrix, wherein gaps of the Si3N4 fiber prefabricated member are filled with the SiO2 ceramic matrix and the BN ceramic matrix. The preparing method comprises the steps that firstly, the Si3N4 fiber prefabricated member is subjected to super glue heat treatment; secondly, a Si3N4f / SiO2 composite midbody is prepared; thirdly, a Si3N4f / SiO2-BN composite midbody is prepared; fourthly, decarbonization treatment is carried out. The composite has the advantages of being high in density, good in temperature resistance and high in carrying capacity, having a high dielectric property and the like, and the composite has high application value in the high-temperature wave-transmitting material field; the preparing method is simple in process, relatively low in cost and suitable for industrialized production.

The invention discloses a method for preparing an organic perovskite methyl amino lead iodide film by a two-step method. The method comprises the following specific steps: a film preparation technology (pulse laser deposition, magnetron sputtering and the like) is used for depositing on a substrate with lead iodide as a target to prepare a lead iodide film; the thickness of the film is controlled through the laser pulse number or the sputtering power and time; then, the grown lead iodide film and methyl amine iodide powder are put in a temperature control furnace for heating at constant temperature of 150-280 DEG C by 5 minutes to 5 hours; and a methyl amine iodide atmosphere and the lead iodide film on the substrate are reacted to generate the methyl amino lead iodide film. The method is simple in preparation process, and can realize the preparation of large-area film; and film grains grown by using the method substantially penetrate through a film growing direction, so that the improvement of organic perovskite solar cell efficiency and the industrial production and application are facilitated.

The invention relates to an Mo-Mo+Si+Al functionally graded material and a preparation method thereof, belonging to the technical field of metallurgical materials and used for solving the problems of thin gradient layer and poor microcrack self-healing property of the functionally graded material. The Mo-Mo+Si+Al functionally graded material is characterized in that metal Mo is used as a basal body, a gradient distribution layer is arranged outside the basal body, wherein the contents of Si and Al in the gradient distribution layer gradually increase. The material has the change law of the components form inner phase to outer phase as follows: Mo-Mo5Si3+Mo3Si+Al4Mo+Mo-Mo5Si3+MoSi2+Al4Mo-MoSi2+Al4Mo+Si. The preparation method of the material comprises the steps of preparing a Si-Al alloy penetrating source, diffusing Si and Al in a molybdenum basal body, cooling the material and the like. The material has thick gradient layer and strong microcrack self-healing property; and the method has the characteristics of high forming speed of the gradient layer, short preparation time of the gradient layer, easy process control and the like.

The invention discloses a method for preparing an organic perovskite methyl amino lead iodide film based on a lead oxide film.The method specifically comprises the steps that with lead oxide as a target material, the lead oxide film is prepared on a base in a sedimentation mode through the film preparation technology, the film thickness is controlled through the number of laser pulses, laser energy or sputtering power and time, the lead oxide film growing well and methyl ammonium iodide powder are put into a temperature controlling furnace and heated at the constant temperature of 160-260 DEG C for 5 minutes to 3 hours, and the formed methyl ammonium iodide gas and the lead oxide film on the base react successively to produce the methyl amino lead iodide film.The preparing technology is simple, and large films can be prepared; by means of high-temperature crystal, a uniform and compact entirety is formed by the produced methyl amino lead iodide film, crystalline grains penetrate through the whole film, crystal boundaries, cracks and defects are reduced, and therefore the methyl amino lead iodide film helps efficiency improvement and actual application and production of organic perovskite solar cells.

The invention discloses a silver precursor, a tellurium precursor and a preparation method for controllably synthesizing silver telluride quantum dots. The method comprises the following steps: mixing one or more silver mercaptide with organic phosphine to prepare an activity-adjustable silver precursor, and thermally injecting the tellurium precursor synthesized in air, thereby obtaining the silver telluride quantum dot. The method is easy to operate, good in repeatability and low in cost. The emission wavelength of the silver telluride quantum dot is adjustable in a range of 1150nm-2000nm by regulating and controlling the types and the proportion of thiol and phosphine, the proportion of a silver source to a tellurium precursor and the reaction time, the half-peak width of the emission wavelength is narrow, and the fluorescence quantum yield can reach more than 10%. The method can be used in the field of biomedical imaging, can also be used for preparing other nano materials containing silver or chalcogenide elements, and is suitable for large-scale industrial production.

The invention relates to a method for preparing a Na0.5Bi0.5Cu3Ti4O12 ceramic. Na2CO3, Bi2O3, CuO and TiO2 serve as raw materials, NaCl and KCl are added into the raw materials, and the raw materials are ball-milled, pre-burned, formed and sintered to form a product. By the method, the raw materials can react at low temperature, a synthetic product is high in purity and small in grain size and has a great value in the field of high dielectric constant materials, the microscopic structure of the copper titanate bismuth sodium ceramic can be obviously improved, and further dielectric property is improved.

The invention relates to the technical field of pressure cookers, in particular to a direct-current double-layer pressure feedback pressure cooker and a control method thereof. By the aid of a sealed inner container and a sealed outer container, the outer container can function in sharing pressure, so that the pressure intensity between the inner container and the outer container is higher than that of the outside, the pressure intensity in the inner container is higher than that between the inner container and the outer container, the manufacturing temperature of main food and subsidiary food is increased, heat efficiency is improved, and the pressure cooker is suitable for a common area and can meet the manufacturing requirements of main food and subsidiary food of a high-altitude area. In addition, the pressure of the inner container is detected through a pressure sensor and fed back a control circuit, current of a heater is adjusted through the control circuit, so that a pressure value of the inner container is stabilized within a set range, the relative stability of the temperature of the inner container is kept, energy consumption is reduced, and manufacturing quality is improved.

The invention belongs to the technical field of combustion synthesis, and particularly relates to a method for preparing molybdenum copper alloy by combustion synthesis in a high gravity field. The method of the invention adopts Al-CuO as a reaction system, and adopts Cu, Mo, and B2O3 as diluents. High temperature thermite reaction between various raw materials is induced in a high gravity field (500-5000g); rapid separation, densification, and cooling of the products of ceramic melt and metal melt of the thermite reaction in the high gravity field is realized to obtain a ceramic solid and a metal solid; and the pure copper layer at one end of the metal solid is cut to obtain the molybdenum copper alloy. The method of the invention has the characteristics of simple process, short preparation period, low cost, and the like.

The invention discloses a high efficiency silicon-based heterojunction double-sided battery and its preparation method. The high efficiency silicon-based heterojunction double-sided battery comprises an N type silicon chip. On the front side of the N type silicon chip, a first intrinsic amorphous silicon layer, a second intrinsic amorphous silicon layer, a P type doped amorphous silicon layer, a transparent conductive film layer and a metal gate wire electrode are arranged in succession. The electron band gap of the second intrinsic amorphous silicon layer is greater than that of the first intrinsic amorphous silicon layer. On the back side of the N type silicon chip, a third intrinsic amorphous silicon layer, an N type doped amorphous silicon layer, a transparent conductive film layer and a metal gate wire electrode are arranged in succession. According to the invention, the first intrinsic amorphous silicon layer and the second intrinsic amorphous silicon layer are prepared in different chambers respectively, and the preparation temperature of the first intrinsic amorphous silicon layer is lower than that of the second intrinsic amorphous silicon layer so that the second intrinsic amorphous silicon layer has a relatively wider electron band gap which corresponds to the band gap of a crystalline silicon and therefore, can be used as a barrier layer to block the diffusion of electrons into the emitter using the difference in band width; therefore, the combination of electrons with empty cavities can be reduced, improving the electrical performance of the battery.

This invention relates to a type of carbon material iridium smear layer used for antioxygen. The feature is it has two iridium smear layer: one permeates under carbon material; one deposit on the surface. The depth of infiltrated layer is 10-50um, surface layer is 50-300um. Iridium and carbon material has combined, and the ingredient forms gradient transition from infiltrated layer to surface layer and has no catastrophe of ingredient and mechanical property. The preparation of this smear layer includes follow steps: use iridium board and carbon material as cathode, vacuum chamber shell as joint using anode in the vacuum glow discharge installation; draw vacuum to ultimate vacuum, post in argon gas, light aura, and then alloy elementary particle of source electrode iridium target is sputtered and deposit on the surface of carbon material; the last step is high temperature diffusion.

The invention relates to a preparation method for a microfluidic array controller, and belongs to the technical field of microfluidic control. The preparation method solves the problem that large-scale microfluidic array control is not easy to realize in the prior art. The preparation method comprises the following steps that microfluidic control units are prepared, wherein each microfluidic control unit comprises a microfluidic channel device, a thin-film transistor device and a capacitor; a power supply 1 and a power supply 2 are selected according to the preset requirement; and M*N microfluidic control units are arranged into a M*N array and are connected in a line connection mode. According to the preparation method, the prepared M*N array only needs M+N+2 leads, and the microfluidic control voltage only needs to be about 20 V. The preparation method for the microfluidic array controller has the advantages that the large-scale microfluidic arrays control can be realized, the large-scale microfluidic array control difficulty can be greatly lowered, the number of the leads can be decreased, and a novel technological approach is provided for the practicability of a microfluidic control chip.

This invention relates to a type of carbon material wolfram / iridium smear layer used for antioxygen. The feature is wolfram and carbon material contact directly to form intermediate layer, and iridium and wolfram contact directly to form surface layer.

The invention discloses a graphitized carbon-based adsorption material and a preparation method thereof. The preparation method comprises the following steps: placing phenolic resin under the protection of inert gas, continuously heating to 1200-1600 DEG C at a certain rate, continuously heating at constant temperature, carrying out high-temperature anaerobic carbonization, cooling to room temperature, crushing, and sieving to obtain a black granular product. The method adopts the thermoplastic phenol-formaldehyde resin as the unique raw material, does not need any additive, is lower in preparation temperature, avoids the defects of high preparation temperature, serious energy consumption, high metal content and the like in the traditional method, is simple in preparation process, and is suitable for industrial large-scale preparation; the prepared graphitized carbon-based adsorption material can replace a commercially available graphitized carbon black material recommended in the determination isotope dilution high-resolution gas chromatography-high-resolution mass spectrometry (HJ 77.2-2008) of ambient air and waste gas-dioxins, the recovery rate range of PCDD / Fs extraction internal standard is 80%-107%, and the requirements are met.

The invention discloses a method for preparing an organic perovskite methyl amino lead iodide film based on a lead oxide film.The method specifically comprises the steps that with lead oxide as a target material, the lead oxide film is prepared on a base in a sedimentation mode through the film preparation technology, the film thickness is controlled through the number of laser pulses, laser energy or sputtering power and time, the lead oxide film growing well and methyl ammonium iodide powder are put into a temperature controlling furnace and heated at the constant temperature of 160-260 DEG C for 5 minutes to 3 hours, and the formed methyl ammonium iodide gas and the lead oxide film on the base react successively to produce the methyl amino lead iodide film.The preparing technology is simple, and large films can be prepared; by means of high-temperature crystal, a uniform and compact entirety is formed by the produced methyl amino lead iodide film, crystalline grains penetrate through the whole film, crystal boundaries, cracks and defects are reduced, and therefore the methyl amino lead iodide film helps efficiency improvement and actual application and production of organic perovskite solar cells.

The invention discloses a silicon nitride fiber reinforced silicon dioxide ceramic based composite and a preparation method and application of the silicon nitride fiber reinforced silicon dioxide ceramic based composite. The silicon nitride fiber reinforced silicon dioxide ceramic based composite comprises an Si3N4 fiber prefabricate and an SiO2 ceramic base, and the SiO2 ceramic base is evenly put in holes of the Si3N4 fiber prefabricate. The preparation method comprises the following steps: (1) removing a binder from the Si3N4 fiber prefabricate in the vacuum or inertia atmosphere; (2) preparing an Si3N4 / SiO2 composite intermediate through the processes of impregnating in vacuum, drying a gel and sintering; and (3) decarbonizing thermally in the aerobic environment. The composite has the advantages of high temperature resistance, ablation resistance, scouring resistance, excellent oxidation resistance, strong carrying capacity and excellent dielectric property, and has an excellent application value in the field of high temperature wave transmitting material; and the preparation method is simple in process and relatively low in cost and is suitable for industrial production.

The invention relates to a method for preparing a nano compound diamond-like carbon coating, which is realized in a way that: glow discharge is produced by using a medium-frequency magnetic-control sputtering target; argon and excessive hydrocarbon gases are introduced, so that the metal on the target surface reacts with the hydrocarbon gases to produce metallic carbides; when the argon ions bombard the target surface, the target surface sputters the metallic carbides; strong plasma produced by the glow discharge of the target surface ionize the hydrocarbon gases, so that the hydrocarbon gases produce highly-ionized carbon ions; and the carbides sputtered from the target surface and the highly-ionized carbon ions produced from the hydrocarbon gases form a high-hardness carbide-doped nano compound diamond-like carbon coating on a workpiece surface. The coating prepared by the invention has the characteristics of high hardness, strong adhesive force, high growth speed, high production efficiency, low depositing temperature, low production cost, simple equipment structure and the like; and diamond-like carbon coatings with different thicknesses can be prepared on hard alloy, high-speed steel and various other workpieces.

This invention relates to a type of carbon material iridium smear layer used for antioxygen. The feature is it has two iridium smear layer: one permeates under carbon material; one deposit on the surface. The depth of infiltrated layer is 10-50um, surface layer is 50-300um. Iridium and carbon material has combined, and the ingredient forms gradient transition from infiltrated layer to surface layer and has no catastrophe of ingredient and mechanical property. The preparation of this smear layer includes follow steps: use iridium board and carbon material as cathode, vacuum chamber shell as joint using anode in the vacuum glow discharge installation; draw vacuum to ultimate vacuum, post in argon gas, light aura, and then alloy elementary particle of source electrode iridium target is sputtered and deposit on the surface of carbon material; the last step is high temperature diffusion.

The invention relates to the field of iron oxide red preparation, and particularly relates to a wet method for preparing iron oxide red through introducing a crystal form accelerant. The wet method comprises steps of 1. adding the weighed industrial grade lime into clear water slowly, controlling the stirring speed to be 30-42r / min, standing the obtained lime slurry for 4-8 hours, and obtaining the crystal form accelerant after the lime is fully emulsified; 2. adding the obtained crystal form accelerant into a seed crystal reaction tank, then adding a titanium dioxide byproduct ferrous sulfate solution for purification and decontamination, adding a sodium hydroxide solution uniformly and slowly, controlling the reaction pH value to be 9-10, carrying out oxidation reaction with the air supplied by an air compressor, and obtaining an iron oxide red seed crystal; and 3. carrying out two-step oxidization on the obtained iron oxide red seed crystal, filtering, rinsing, filter pressing, stoving, smashing into powder so as to obtain the iron oxide red product. The wet method for preparing iron oxide red through an introducing crystal form accelerant is simple and easy to realize, has less pollution to environment, and has low potential safety hazard.

The invention discloses a high efficiency silicon-based heterojunction double-sided battery and its preparation method. The high efficiency silicon-based heterojunction double-sided battery comprises an N type silicon chip. On the front side of the N type silicon chip, a first intrinsic amorphous silicon layer, a second intrinsic amorphous silicon layer, a P type doped amorphous silicon layer, a transparent conductive film layer and a metal gate wire electrode are arranged in succession. The electron band gap of the second intrinsic amorphous silicon layer is greater than that of the first intrinsic amorphous silicon layer. On the back side of the N type silicon chip, a third intrinsic amorphous silicon layer, an N type doped amorphous silicon layer, a transparent conductive film layer and a metal gate wire electrode are arranged in succession. According to the invention, the first intrinsic amorphous silicon layer and the second intrinsic amorphous silicon layer are prepared in different chambers respectively, and the preparation temperature of the first intrinsic amorphous silicon layer is lower than that of the second intrinsic amorphous silicon layer so that the second intrinsic amorphous silicon layer has a relatively wider electron band gap which corresponds to the band gap of a crystalline silicon and therefore, can be used as a barrier layer to block the diffusion of electrons into the emitter using the difference in band width; therefore, the combination of electrons with empty cavities can be reduced, improving the electrical performance of the battery.

The invention relates to a cold mixing high polymer modified bitumen concrete and a method for producing the same. The concrete comprises 5.0 to 15 weight portions of cold state high polymer bitumen, 55 to 70 weight portions of stone, 1.0 to 5 portions of stone dust, 1.0 to 4 portions of cement, 4.0 to 10 portions of cold mixing swelling agent and 5.0 to 27 portions of pure water which are prepared into the cold mixing high polymer modified bitumen concrete through normal cold mixing. The concrete has the advantages of simple production, novel and unique formulation, excellent performance and energy conservation, is the cold mixing high polymer modified bitumen concrete for a rapid, economic, energy-saving and environment-friendly high grade highway with excellent performance, and can be widely applied to the bitumen concrete pavements paved for various grades of highways.

The invention belongs to the technical field of inorganic optical materials and particularly relates to a method for preparing Ce:YAG glass ceramic in a super-gravity field by combustion synthesis. According to the method, either of Al-CuO and Al-NiO is taken as a reaction system; Y2O3, SiO2, B2O3 and CeF3 are taken as diluents; in the super-gravity field (500-5000g), an aluminothermic reaction at high temperature is induced among all the raw materials; the products of the aluminothermic reaction, glass ceramic melt and metal melt are separated quickly, densified and cooled in the super-gravity field to obtain a glass ceramic solid and a metal solid, wherein the glass ceramic melt is subject to spontaneous crystallization during the cooling process to obtain the glass ceramic solid, namely, the Ce:YAG glass ceramic. The Ce:YAG glass ceramic prepared in the invention has the characteristics of high YAG crystalline phase content, short preparation period, low production cost and the like.

The invention discloses an ecological high-durability OGFC-5 mixture. The mixture includes the following components in percentages by mass: 4.5-4.9% of high-performance modified asphalt, and 95.5-95.1% of mineral aggregate, wherein the high-performance modified asphalt includes the following components: 2.69-2.7% of light vegetable oil, 7.185-7.193% of SBS, 0.269-0.27% of an anti-stripping agent,and the balance of 70# petroleum asphalt; and the nominal maximum particle size of the mineral aggregate is 4.75 mm, and the gradation range is as follows: the mass percentage of mineral aggregate passing through a 4.75 mm sieve pore is 90-100%, the mass percentage of mineral aggregate passing through a 2.36 mm sieve pore is 10-20%, and the mass percentage of mineral aggregate passing through a 0.075 mm sieve pore is 3-7%. The high-durability OGFC-5 asphalt mixture provided by the invention has the characteristics of high strength, good durability, and significant noise-reducing and water-discharging effects, and can be used for paving of road drainage pavements; and in addition, the high-durability OGFC-5 asphalt mixture can eliminate the phenomenon of aggregate scattering caused by combined action of shearing and torsion at intersections and a small turning radius area.

The invention discloses green rare-earth fluorescent powder for an LED (Light Emitting Diode) and a preparation method of the fluorescent powder. According to the preparation method, a high-temperature solid-phase method is adopted, and the method specifically comprises the step of weighing reaction raw materials, i.e., a Na<+> containing compound, a La<3+> containing compound, a Zr<4+> containing compound and a Tb<3+> containing compound, according to the stoichiometric proportion of a chemical formula NaLa<1-x>Zr<2>O<6>:xTb<3+>, wherein x ranges from 0.05 to 0.11. According to the invention, green light emission is realized through rare-earth single-doping; and the NaLa<1-x>Zr<2>O<6>:xTb<3+> fluorescent powder is synthesized by adopting the high-temperature solid-phase method. Moreover, the process is simple, and the synthesis temperature is low.

The invention belongs to the technical field of combustion synthesis, and particularly relates to a method for preparing molybdenum copper alloy by combustion synthesis in a high gravity field. The method of the invention adopts Al-CuO as a reaction system, and adopts Cu, Mo, and B2O3 as diluents. High temperature thermite reaction between various raw materials is induced in a high gravity field (500-5000g); rapid separation, densification, and cooling of the products of ceramic melt and metal melt of the thermite reaction in the high gravity field is realized to obtain a ceramic solid and a metal solid; and the pure copper layer at one end of the metal solid is cut to obtain the molybdenum copper alloy. The method of the invention has the characteristics of simple process, short preparation period, low cost, and the like.

A method of preparing a porous and permeable adsorption material for a vaporizer utilizes a mixing step; a kneading step; a molding step; a drying step; a first holding step; a calcining step; a second holding step; a forming step; a third holding step; and a producing step. The raw materials include particulates of silicon carbide of 50-85 weight percent, a binder of 1-30 weight percent, a pore forming agent of 5-35 weight percent, and a surfactant of 0.15-7.5 weight percent. Once these raw material components are mixed, then adding water of 5 weight percent to 35 weight percent while kneading to form a wetted mixture of raw materials. The remaining steps describe a molding and heating regimen.