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37 results about "Eutectic system" patented technology
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A eutectic system (/juːˈtɛktɪk/ yoo-TEK-tik) from the Greek "εύ" (eu = well) and "τήξις" (tēxis = melting) is a homogeneous mixture of substances that melts or solidifies at a single temperature that is lower than the melting point of either of the constituents.
Method for preparing 5-hydroxymethylfurfural from fructose
InactiveCN104844543AEfficient preparationHigh yieldOrganic chemistryHydroxymethylfurfural5-hydroxymethylfurfural
The invention relates to 5-hydroxymethylfurfural, particularly a method for preparing 5-hydroxymethylfurfural from fructose. The method has the advantages of low cost, high yield, simple steps and environment friendliness. The method comprises the following steps: mixing fructose and choline chloride, adding hydrochloric acid as a catalyst, heating to react, and adding an organic extractant to extract the reaction mixture, thereby obtaining the product 5-hydroxymethylfurfural. By using the ultralow-concentration hydrochloric acid as the catalyst, the 5-hydroxymethylfurfural can be efficiently prepared in the fructose-choline chloride eutectic system, thereby being green and environment-friendly. By using the ultralow-concentration hydrochloric acid as the catalyst, the yield of the 5-hydroxymethylfurfural can reach 92%. The eutectic formed by the cheap choline chloride and fructose has favorable economical efficiency, thereby providing a novel idea for research of 5-hydroxymethylfurfural and downstream products thereof.
Owner:XIAMEN UNIV
Method for preparing biodiesel in eutectic system
InactiveCN103525561ALow costHigh catalytic activityFatty acid esterificationBiofuelsBiodieselGlycerol
The invention discloses a method for preparing biodiesel in a eutectic system. The biodiesel is prepared by stirring and heating plant oil and methyl alcohol, which are used as raw materials, under normal pressure. The method has the advantages that a sodium hydroxide catalyst is adopted, so that the cost is low, the catalysis activity is high, and the using amount is small; the reaction conditions are mild, and the reaction can be executed under normal pressure and methyl alcohol backflow temperature conditions; a eutectic solvent consists of choline chloride and glycerinum, so that an emulsification phenomenon is avoided, and the technical flow is simplified; the product is high in purity and contains few impurities; the eutectic catalysis system consisting of the eutectic solvent and the sodium hydroxide is easy to recycle and use and has an environment-friendly effect.
Owner:YANCHENG TEACHERS UNIV
Preparation method of aliphatic dibasic acid/bentonite composite phase change energy storage material
InactiveCN101838521ALower phase transition temperatureLow decay rateHeat-exchange elementsSodium BentoniteDibasic acid
The invention relates to a preparation method of a composite phase change energy storage material by using bentonite as a base body and using aliphatic dibasic acid as a phase change energy storage body, which belongs to the technical field of the preparing technology of energy storage materials and comprises the steps of: putting the bentonite, CTAB (cetyltriethylammnonium bromide) and deionized water into a reaction container to heat and stir; modifying the bentonite; preparing a eutectic system of aliphatic dibasic acid by using myristic acid (MA) and palmitic acid (PA), or lauric acid (LA) and myristic acid (MA); heating 20% to 37% of eutectic mixture of the aliphatic dibasic acid, 26% to 42% of modified bentonite and 36% to 44% of absolute ethyl alcohol in the reaction container to 75 DEG C; stirring for 2 hours; and drying a product in the reaction container to constant weight to obtain the aliphatic dibasic acid / bentonite composite phase change material. The material has good heat storage capability and the stability of storing heat circulation, and can be used for the fields of using waste heat, residual heat and solar energy and the like.
Owner:SHANGHAI UNIV
Fluorescent color changing eutectic material under ultrahigh pressure conditions and preparation method thereof
ActiveCN109020805AChange molecular configurationChange structureOrganic chemistry methodsTenebresent compositionsUltra high pressureSynthesis methods
The invention discloses a fluorescent color changing eutectic material under ultra-high pressure conditions and a preparation method thereof, and belongs to the field of molecular solid-state light-emitting materials. A plurality of multi-fluoro-substituted organic small molecules are selected as co-assembly units, and a novel multi-component molecular co-crystal compound is prepared by using a solvent-assisted grinding method, a solvent evaporation method, an ultrasonic synthesis method and the like. Cyano substituted p-phenylene vinyl type molecules and the co-assembled small molecules mutually recognize each other through multiple hydrogen bonds, Pi- Pi force and other non-covalent forces to form a structure-ordered supramolecular structure, changing self-stacking molecular configuration and spatial arrangement of original cyano-substituted phenylene vinyl type molecules so as to achieve a certain modulation effect on photophysical properties. The novel fluorescent color changing eutectic material prepared by the method can produce different fluorescent discoloration behaviors under the ultra-high pressure conditions, is the first fluorescent discoloration eutectic system underthe ultra-high pressure conditions, and has application prospects in the fields of new optical sensors and pressure sensitive materials and the like.
Owner:BEIJING NORMAL UNIVERSITY
Method for preparing cellulose nano crystal by using acidic eutectic solvent through hydrolysis
ActiveCN111548426AMild reaction conditionsEasy to manufactureOXALIC ACID DIHYDRATEReaction temperature
The invention relates to a method for preparing a cellulose nano crystal by using an acidic eutectic solvent through hydrolysis, and belongs to the field of natural polymer material preparation. The cellulose nano crystal is prepared through hydrolysis of 1 to 10 parts by mass of cellulose slurry, wherein the hydrolysis is catalyzed by an acidic eutectic system composed of 40 parts by mass of oxalic acid dihydrate, 40-50 parts by mass of choline chloride, 5-10 parts by mass of distilled water and 5-10 parts by mass of sulfuric acid, the reaction time is 1-5 hours, and the reaction temperatureis 45-55 DEG C. The reaction conditions are mild, and the operation is simple. The cellulose nano crystal is prepared in one step by utilizing an acidic eutectic solvent, and the steps of machining treatment and the like are omitted. The prepared cellulose nano crystal has good thermal stability and good dispersion stability in water.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Rectification-molecular sieve membrane coupling process and device for ternary water-containing eutectic system separation
ActiveCN111004090ASolve the problem of low separation production capacityReduce the reflux ratioSemi-permeable membranesEther separation/purificationMolecular sieveMembrane permeabilization
The invention relates to a rectification-molecular sieve membrane coupling process and a rectification-molecular sieve membrane coupling device for separation of a ternary water-containing eutectic system, and discloses a novel separation device for direct coupling of a rectifying tower and a membrane component. The novel separation device comprises a tower internal component and a membrane permeation unit internal component contained in a conventional rectifying tower. For ternary water-containing system separation, a molecular sieve membrane steam permeation device and a rectifying tower areingeniously combined into a whole, separation of a ternary azeotropic system through a single rectifying tower of a simple structure is achieved, and the separation efficiency is obviously improved.
Owner:NANJING UNIV OF TECH
Solid dispersion matrix and application thereof
ActiveCN109287627AImprove bioavailabilityHigh dissolution rateBiocideFungicidesWater dispersibleDissolution
The invention belongs to the technical field of a solid dispersion, and concretely relates to a solid dispersion matrix and an application thereof. The solid dispersion matrix is an eutectic system composed of a hydrogen bond donor, a hydrogen bond acceptor, and an excipient, and the hydrogen bond donor is any one or more of glucose, mannitol, citric acid, succinic acid, and menthol; the hydrogenbond acceptor is choline chloride; and the excipient is any one or more of PEG, PVP and poloxamer. The beneficial effects of the solid dispersion matrix are as follows: firstly, the dissolution of aninsoluble drug in water is improved, and the utilization degree is greatly improved; secondly, the eutectic system is used as the solid dispersion matrix for preparing pills, water-dispersible granules or wettable powder, the process is simple, the operation is easy, the solid dispersion matrix does not use toxic and harmful organic solvents, is non-polluting, and is suitable for industrial production; and furthermore, the addition of excipient improves the storage stability of the prepared drug and is less susceptible to wetting liquefaction.
Owner:ZHEJIANG UNIV OF TECH +1
Method of separating olefins/alkanes via Cu(I)/eutectic solvent supporting liquid membrane
InactiveCN107261774AReduce volatilityReduced stabilitySemi-permeable membranesDispersed particle separationAlkaneProton
The invention provides a method of separating olefins / alkanes, comprising the steps of (1) mixing a hydrogen bond receptor and a hydrogen bond donor in a suitable ratio to prepare a eutectic solvent; (2) dissolving a cuprous salt in the eutectic solvent prepared in step (1) to prepare an active eutectic solvent containing the cuprous salt; (3) applying the active eutectic solvent containing the cuprous salt prepared in step (2) evenly to a porous organic supporting membrane, and preparing the Cu(I) / eutectic supporting liquid membrane by a pressurizing method; (4) using the eutectic supporting liquid membrane prepared in step (3) to separate olefins / alkanes. The active membrane liquid with high support concentration is acquired herein by changing the types of cations, anions and hydrogen bond donor in a eutectic system and changing the ratio of the hydrogen bond donor and hydrogen bond receptor to adjust the dissolvability of the cuprous salt therein. Unique hydrogen bond network and proton environment in the eutectic solvent are used to stabilize a support, so that long-term stability of the supporting liquid membrane is ensured.
Owner:TIANJIN UNIV
Salicylic acid organic medicine eutectic and preparation method thereof
InactiveCN107311915ARetain pharmacological propertiesImprove stabilityCosmetic preparationsAntipyreticSolubilitySalicylic acid
The invention relates to salicylic acid organic medicine eutectic and a preparation method of the eutectic. The preparation method comprises the steps of taking salicylic acid as an active ingredient of a medicine, taking 4,4'-dipyridyl as an eutectic precursor, putting salicylic acid, 4,4'-dipyridyl, water, alcohol, methanol or acetone into an eutectic vessel, placing the eutectic vessel on a stirrer, performing room temperature stirring for 2h, placing the eutectic vessel in a 40-100 DEG C oven for 10-40h after stirring stop, taking the eutectic vessel out, and performing cooling to a room temperature until lumpy and flaky clear crystal is separated out. The eutectic inherits pharmacological activity of salicylic acid, and has obvious improvement in solubility, stability and bioavailability of salicylic acid.
Owner:YUNNAN POLICE COLLEGE
Method for producing zinc based on choline chloride-malonic acid low eutectic system
InactiveCN108642520ASimple ingredientsEasy to operatePhotography auxillary processesProcess efficiency improvementHigh current densityCopper wire
The invention relates to a method for producing zinc based on a choline chloride-malonic acid low eutectic system. The method is characterized in that a choline chloride-malonic acid-zinc oxide original electrolyte is prepared; little ethidene diamine is added to choline chloride-malonic acid-zinc oxide ion liquid based on the fixed dose concentration of substances; zinc plates in the ion liquid can be used as soluble anodes; red copper blocks can be used as cathodes; electrodes are soaked into the ion liquid and then are connected to a power supply through copper wires, high-current-density and constant-current electrolytic deposition is carried out under constant temperature; and after the electrolytic deposition, a sample is subjected ultrasonic washing and drying. According to the method, the raw materials are simple and are not preprocessed; few additives are added; the operation is simple, easy to carry out, green, environmentally friendly, safe and nontoxic; in addition, the used current density is high; the electrolytic deposition rate is high; and zinc can be rapidly generated on a copper substrate.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Method for synthesizing biodiesel in eutectic system
ActiveCN105419952AEasy to separatePlay a synergistic catalytic effectFatty acid esterificationBiofuelsBiodieselGlycerol
The invention discloses a method for synthesizing biodiesel in a eutectic system. The biodiesel is obtained by taking vegetable oil and methanol as raw materials and performing stirring and heating at a normal pressure in the eutectic system composed of N-sulfopropyl-N,N,N-trihydroxyethyl ammonium and glycerol. The method disclosed by the invention has the following advantages: (1) a sodium hydroxide catalyst is adopted, and is low in cost, high in catalytic activity and little in dosage; (2) the reaction condition is mild to ensure that reaction can be carried out at a normal pressure and a methanol refluxing temperature; (3) a eutectic solvent in the composition eliminates emulsification and then the process flow is simplified; (4) the product is high in purity and few in impurity; and (5) a eutectic catalytic system composed of the eutectic solvent and sodium hydroxide facilitates recycling, and does not contain halide ions, thereby being safe and reliable for environment and metal equipment.
Owner:YANCHENG TEACHERS UNIV
Preparation method for mesoporous silica coated gold nanorod doping integral column
InactiveCN108786763AHigh column efficiencyEasy to separateOther chemical processesAlkali metal oxides/hydroxidesMesoporous silicaSolvent
The invention relates to a preparation method for a mesoporous silica coated gold nanorod doping integral column. The preparation method comprises the following steps: leading GNRs@mSiO2 into preparation of a capillary tube integral column which takes green solvent ionic liquid and a low eutectic system as a binary pore-foaming agent, regulating proportion of GNRs@mSiO2 to choline chloride-alcohol, the type of ionic liquid and the proportion of the ionic liquid to a low eutectic solvent to observe separating ability, on small molecular substances, of the capillary tube integral column. The preparation method is easy to operate, and is easy and easy to implement. The integral column is compact in material structure, and is good in permeability; the prepared capillary tube integral column iscompact in material structure; according to the electro-chromatographic experiment for alkylbenzene analogues, the column effect (168000 boards / meter) of the GNRs@mSiO2 doped integral column is obviously higher than that (87300 boards / meter) of a blank column, indicating that the column effect of the capillary tube integral column can be effectively improved by doping GNRs@mSiO2; and an organic-inorganic hybrid integral column prepared by a gold nanorod doping scheme has a potential application prospect.
Owner:TIANJIN MEDICAL UNIV
Method for preparing 1,4-cyclohexanedione monoethylene glycol ketal
The invention relates to the technical field of chemical synthesis and particularly discloses a method for preparing 1,4-cyclohexanedione monoethylene glycol ketal. The method comprises the steps of producing an eutectic system from ammonium methyltriethylchloride and ethylene glycol, and then, directly adding 1,4-cyclohexanedione for a reaction. According to the method disclosed by the invention,produced monoketal is high in selectivity, the yield can reach 90% or more, and other reaction solvents are not required to be used, so that the production cost is reduced; after the reaction ends up, the product is easy to separate, and the operation is simple.
Owner:河北彩客新材料科技股份有限公司
Cooking utensil and forming method thereof
The invention provides a cooking utensil and a forming method thereof. The cooking utensil comprises a utensil and an anti-rust layer, and the anti-rust layer covers the surface of the utensil; and the anti-rust layer comprises a titanium-silicon eutectic system alloy, and the mass ratio of the titanium-silicon eutectic system alloy is not less than 80%. The anti-rust effect of the cooking utensil can be improved.
Owner:许密
Oxide solid electrolyte and preparation method thereof
InactiveCN113061026ALower sintering temperatureLow costElectrolytesLi-accumulatorsPhysical chemistryBattery cell
An oxide solid electrolyte and a preparation method thereof belong to the technical field of batteries. The oxide solid electrolyte is formed by sintering and crystallizing a lithium salt precursor and a main material, the lithium salt precursor comprises a lithium salt eutectic system which is formed by at least two lithium salts and has the eutectic temperature of 100-450 DEG C. The preparation method comprises the following steps: sintering and crystallizing a mixture formed by the lithium salt precursor and the main material at the temperature of 300-750 DEG C to obtain the oxide solid electrolyte. The preparation method can reduce the sintering temperature and is beneficial to reducing the cost.
Owner:KUNSHAN BAOTRON NEW ENERGY TECH CO LTD
Method for preparing biodiesel in eutectic system
InactiveCN103525561BLow costHigh catalytic activityFatty acid esterificationBiofuelsBiodieselGlycerol
The invention discloses a method for preparing biodiesel in a eutectic system. The biodiesel is prepared by stirring and heating plant oil and methyl alcohol, which are used as raw materials, under normal pressure. The method has the advantages that a sodium hydroxide catalyst is adopted, so that the cost is low, the catalysis activity is high, and the using amount is small; the reaction conditions are mild, and the reaction can be executed under normal pressure and methyl alcohol backflow temperature conditions; a eutectic solvent consists of choline chloride and glycerinum, so that an emulsification phenomenon is avoided, and the technical flow is simplified; the product is high in purity and contains few impurities; the eutectic catalysis system consisting of the eutectic solvent and the sodium hydroxide is easy to recycle and use and has an environment-friendly effect.
Owner:YANCHENG TEACHERS UNIV
Method for preparing cellulose nanocrystals by hydrolyzing cellulose with eutectic solvent
The invention relates to a method for preparing cellulose nanocrystals by hydrolyzing cellulose with a eutectic solvent, and belongs to the field of preparation of natural polymer materials. The cellulose nanocrystal is an acidic eutectic system consisting of 40 parts by mass of citric acid, 40-50 parts by mass of betaine, 5-10 parts by mass of distilled water and 5-10 parts by mass of sulfuric acid and carrying out catalytic hydrolysis on 1-10 parts by mass of cellulose slurry, wherein the reaction time is 2-6 hours, and the reaction temperature is 50-65 DEG C; the reaction conditions are mild, and the operation is simple. The one-step preparation of the cellulose nanocrystals by using the acidic eutectic solvent is realized, the reaction efficiency of preparing the cellulose nanocrystalsby using the eutectic system is effectively improved, and the product properties of the cellulose nanocrystals are improved. The prepared cellulose nanocrystal has good thermal stability and high crystallinity, and is stable in dispersion in water.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
A kind of ni-co-fe-b system eutectic high-entropy alloy and its preparation method and application
Owner:CHINA UNIV OF MINING & TECH
Cooking utensil and forming method thereof
The invention provides a cooking utensil and a forming method thereof. The cooking utensil comprises a utensil and a non-stick layer covering the surface of the utensil. The surface of the non-stick layer is of a lotus leaf structure, the non-stick layer comprises titanium particles, silicon particles and a titanium-silicon eutectic system alloy, and the mass proportion of the titanium-silicon eutectic system alloy is 60%-80%. According to the cooking utensil, use of non-stick paint can be avoided, the durability of the cooking utensil is improved, and the service life of the cooking utensil is prolonged.
Owner:许密
Touch panel having sensing structures in visible and non-visible areas and fabrication method thereof
ActiveUS10031599B2Reduce yieldImprove manufacturing yieldInput/output processes for data processingDisplay deviceReflective layer
Owner:TPK TOUCH SOLUTIONS (XIAMEN) INC
Method for preparing biodiesel through inducing eutectic system on site
InactiveCN103525562BEasy to separateEasy to recycleFatty acid esterificationBiofuelsEmulsionBiodiesel
The invention discloses a method for preparing biodiesel through inducing a eutectic system on site. The method comprises the steps of stirring and heating vegetable oil and methanol under normal pressure to obtain biodiesel. The method disclosed by the invention has the advantages that firstly, choline chloride serves as an inductive agent of the eutectic system, so that the emulsion phenomenon is eliminated and the process flow is simplified; secondly, the reaction condition is mild and the reaction can be carried out under normal pressure and under the condition of methanol backflow temperature; thirdly, a sodium hydroxide catalyst is adopted and the catalyst is low in cost, high in activity and little in consumption; fourthly, the product is high in purity and little in impurity; fifthly, the eutectic system and the product are easily separated after the reaction is completed, so that the system is easily recycled and the method is friendly to the environment.
Owner:CHANGZHOU UNIV
Ethoxyl inner salt based eutectic substance
InactiveCN105439911ALow costSimple preparation equipmentOrganic compound preparationSulfonic acids salts preparationSolventDolichol
The invention discloses an ethoxyl inner salt based eutectic substance. The substance is characterized by comprising organic amphipathic molecules with a positive charge and a negative charge as well as polyhydric alcohol. According to a preparation method, the two raw materials, the organic amphipathic molecules and polyhydric alcohol, are mixed in a proportion, heated and stirred, a transparent liquid is obtained, and a target product is obtained after the transparent liquid is dried. The ethoxyl inner salt based eutectic substance has the advantages as follows: chloride ions and other halide ions are not contained in the eutectic system, and the eutectic substance cannot corrode metal equipment such as stainless steel equipment and the like; the preparation process is simple, operation is convenient and the raw materials are easy to obtain; solvents are not required for a reaction medium, an atomic economy reaction is realized, the eutectic substance is suitable for industrial production, and the chemical process is environment-friendly.
Owner:YANCHENG TEACHERS UNIV
Preparation method of ultralong nanowire structure and nanoribbon structure copper calcium titanate
InactiveCN103922394BGuaranteed to meltReduce typesMaterial nanotechnologyTitanium compoundsNanowireLight response
The invention discloses a controllable preparation method of copper calcium titanate (CaCu3Ti4O12) with a super-long nanowire structure and nanoribbon structure. In the method, raw oxide materials such as TiO2, CaO and CuO used for preparing CaCu3Ti4O12 are dissolved in a eutectic system of NaCl and KCl at high temperature, and ions Ca<2+>, Cu<2+> and Ti<4+> are recombined at a migration rate of 10<-5>-10<-8>cm<2> / s to form a CaCu3Ti4O12 one-dimensional material with the nanowire structure and nanoribbon structure. The method has the characteristics of few raw material varieties, simple and convenient operation, simple process, low cost, environment friendliness and the like. Prepared CaCu3Ti4O12 with the super-long nanowire structure and nanoribbon structure has great significance in study of the visible-light response photocatalytic mechanism of CaCu3Ti4O12 and preparation of one-dimensional nanomaterials of other compounds, and simultaneously has wide guiding significance in preparation of quaternary compounds with nanowire and nanoribbon structures.
Owner:XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
A deep eutectic substance based on hydroxyethyl inner salt
InactiveCN105439911BLow costSimple preparation equipmentOrganic compound preparationSulfonic acids salts preparationPolyolAlcohol
Owner:YANCHENG TEACHERS UNIV
Eutectic device and transistor package eutectic system
ActiveCN112967957BImprove eutectic efficiencyReduced processing performanceSemiconductor/solid-state device manufacturingMetallurgyWafer
The invention provides a eutectic device and a transistor packaging eutectic system. The eutectic device includes a wafer suction structure, a product suction structure to be eutectic, a preheating structure, a eutectic heating platform, and a eutectic identification structure. The structure is used to pick up the wafer and the product to be eutectic. The suction structure is used to pick up the product to be eutectic. The preheating structure is used to preheat the product to be eutectic. The identification structure is used to take pictures during the eutectic process. There are two preheating structures, eutectic heating platforms and eutectic identification structures. The two preheating structures are respectively set corresponding to the two eutectic heating platforms. The eutectic recognition structure is correspondingly arranged above the two eutectic heating platforms. The eutectic device can improve eutectic efficiency, and the two preheating structures have the same structure, which greatly reduces the influence of preheating structure processing and assembly tolerances, making the eutectic precision of the two eutectic heating platforms basically consistent with the eutectic effect.
Owner:深圳市东飞凌科技有限公司
A kind of co-crystal, its preparation method and application
ActiveCN111334866BImprove frequency conversion efficiencyExcellent infrared nonlinear optical performanceAfter-treatment apparatusPolycrystalline material growthElectronvoltAnalytical chemistry
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
A method for synthesizing biodiesel in a deep eutectic system
ActiveCN105419952BEasy to separatePlay a synergistic catalytic effectFatty acid esterificationBiofuelsBiodieselMetal
Owner:YANCHENG TEACHERS UNIV
A method for synthesizing biodiesel in eutectic system induced in situ
InactiveCN105349268BEasy to separatePlay a synergistic catalytic effectFatty acid esterificationBiofuelsVegetable oilBiodiesel
The invention discloses a method for synthesizing biodiesel in a field-induced low eutectic system. The raw materials are vegetable oil and methyl alcohol, stirring and heating are conducted at normal pressure, and the biodiesel is obtained. The method for synthesizing the biodiesel in the field-induced low eutectic system has the advantages that N-sulfonic acid propyl trihydroxyethyl ammonium serves as an inducer of the low eutectic system, an emulsion phenomenon is eliminated, and the technological process is simplified; the system does not contain a halide ion, and damage to metal equipment is avoided; a sodium hydroxide catalyst is adopted, the cost is low, the activity is high, and the dosage is low; the reaction condition is mild, and a reaction can be conducted under the condition of normal pressure and methyl alcohol reflux temperature; the product purity is high, and impurities are few; after the reaction is completed, a low eutectic catalytic system is prone to be separated from a product, recycling is easy, and the method is environmentally friendly.
Owner:YANCHENG TEACHERS UNIV
Eutectic device and transistor packaging eutectic system
ActiveCN112967957AImprove eutectic efficiencyReduced processing performanceSemiconductor/solid-state device manufacturingEngineeringTransistor
Owner:深圳市东飞凌科技有限公司
Eutectic system high-entropy alloy and preparation method thereof
The invention discloses eutectic system high-entropy alloy, which is NiAl-(MoxCrxFex)3x according to the atomic percent; x is larger than or equal to 13.3 and smaller than or equal to 16, where Ni and Al are in an equal atomic ratio. The invention further discloses a preparation method of the eutectic system high-entropy alloy; specifically, raw materials are weighed according to the atomic ratio; the surfaces of the raw materials are subjected to descaling pretreatment; the raw materials are placed in an electric arc smelting furnace to be smelted; and the eutectic system high-entropy alloy is obtained. The eutectic system high-entropy alloy disclosed by the invention has relatively high strength and better plasticity at the same time; and the mechanical property is obviously better.
Owner:XIAN UNIV OF TECH
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