338 results about "Samarium" patented technology

The invention discloses a rare-earth metal arylamine group compound as well as preparation method and application thereof. The invention discloses the rare-earth metal arylamine group compound which is characterized in that a general formula of the rare-earth metal arylamine group compound is (2,6-R12PhNH)5LnLi2(THF)2, wherein Ln is a rear-earth metal selected from one of neodymium, samarium, ytterbium or yttrium; R1 is selected from one of hydrogen, methyl or isopropyl. The rare-earth metal arylamine group compound has the advantages that the rare-earth metal arylamine group compound has a definite structure; raw materials used in the preparation method are simple, easily obtained and cheap; the reaction process is simple and easily operated; the rare-earth metal arylamine group compound product is conveniently purified and the yield of the product is high; the rare-earth metal arylamine group compound has a high activity when acting as a single component catalyst to catalyze a hydrogen phosphine reaction of aldehyde or ketone and phosphite ester; the use amount of the catalyst is less; the yield is high; a substrate has wide universality; a new and simple method is provided for synthesis of a-hydroxyphosphonate.

The invention provides a samarium / europium / gadolinium-containing zirconium hydride block as well as a preparation method and application thereof, and relates to the technical field of radiation shielding materials. The zirconium hydride block containing samarium / europium / gadolinium comprises the following elements in percentage by mass: 95% < = Zr < = 99.5%, 0% < = Gd < = 5%, 0% < = Sm < = 5%, 0% < = Eu < = 5% and 0% lt. Gd + Sm + Eu < = 5%. The preparation method comprises the following steps: respectively hydrogenating sponge zirconium, metal gadolinium, metal europium and metal samarium to respectively obtain corresponding hydride powder; weighing zirconium hydride powder, gadolinium hydride powder, europium hydride powder and samarium hydride powder according to a required proportion, and uniformly mixing under a protective atmosphere; and carrying out pressure sintering on the mixed powder, and carrying out secondary hydrogenation to obtain the zirconium hydride block containing samarium / europium / gadolinium. According to the invention, the absorption of the material to low-energy-segment neutrons can be obviously improved; and the preparation of the zirconium hydride block containing samarium / europium / gadolinium and the accurate regulation and control of doped elements are realized.

The present application provides an entropy-regulated composite dielectric film, which comprises a polymer matrix; and fillers dispersed in the polymer matrix, wherein the fillers comprise Bi 4‑a M 1a Ti (3‑3b) M 2b O 12 , wherein M1 comprises at least one of lanthanum, neodymium, samarium and praseodymium, M2 comprises at least one of zirconium, hafnium and tin, 0 The entropy-regulated composite dielectric film has high temperature resistance, high breakdown strength, high polarization strength, high energy storage density and good stability.

The method comprises the following steps: weighing an oxide precursor of metal indium, an oxide precursor of metal M, an ammonium salt and a lithium salt according to a chemical formula of indium-based halide, fully mixing, and calcining in an inert atmosphere to obtain the indium-based halide solid electrolyte. Forming an indium-based halide solid electrolyte through a solid-phase reaction; wherein M is selected from at least one of magnesium, calcium, strontium, barium, aluminum, gallium, indium, bismuth, scandium, yttrium, zinc, germanium, tin, lanthanum, cerium, samarium, gadolinium, holmium, erbium and ytterbium. The method can greatly simplify the synthesis process, reduce the raw material cost and realize industrial batch preparation.

The invention discloses a ruthenium and samarium double monatomic doped three-dimensional titanium-based tin antimony nickel electrode and a preparation method and application thereof. The preparation method of the electrode comprises the following steps: (1) pretreating the titanium felt; (2) preparing a sol impregnation liquid; (3) sol coating and drying: dipping the pretreated titanium felt in the prepared sol dipping liquid, fully adsorbing and then drying to form a uniform precursor layer; and (4) roasting treatment is conducted, specifically, the dried titanium felt is placed in a muffle furnace to be roasted, and then the steps of dipping, drying and roasting are repeated till the final ruthenium and samarium double monatomic doped three-dimensional titanium-based tin-antimony-nickel electrode is obtained. In the prepared electrocatalyst, ruthenium and samarium are doped into a tin-antimony-nickel electrode in a monatomic form, the utilization efficiency of ruthenium and samarium atoms is improved, and the electrode is endowed with excellent electrocatalytic activity. The unique three-dimensional structure and double-monatomic doping significantly enhance the electron transfer rate and the reaction kinetic characteristics, so that the electrode shows excellent stability and efficient hypochlorous acid generation ability.

The invention relates to an MIM injection-molded samarium-iron-nitrogen magnet and a preparation process thereof.The preparation process comprises the steps that Nb is added into Sm2Fe17, a Nb nano-modified layer is formed through high-energy ball milling and heat treatment, then a degreased blank is obtained through a paraffin-polylactic acid-stearic acid ternary binder system with the mass ratio being 60: 30: 10 and gradient degreasing, and after the degreased blank is sintered, the MIM injection-molded samarium-iron-nitrogen magnet is obtained; nitriding treatment is carried out by adopting a three-stage process, and then the samarium-iron-nitrogen magnet with high magnetism is obtained after ultrasonic cleaning and other treatment.

The invention discloses a samarium manganese mullite catalyst rich in Sm vacancy and a preparation method and application thereof, and belongs to the technical field of VOCs waste gas catalytic oxidation. According to the invention, samarium nitrate and manganous nitrate are used as precursors, citric acid monohydrate is used as a chelating agent, urea is used as an additive, and the samarium manganese mullite catalyst rich in Sm vacancies is synthesized through a sol-gel method. The Sm vacancy samarium manganese mullite catalyst prepared by the invention shows excellent toluene catalytic oxidation low-temperature activity due to selective removal of inert Sm atoms on the surface of samarium manganese mullite, more active Mn atoms are exposed, and the surface lattice oxygen migration performance is enhanced. The catalyst has excellent performance in a stability test and a water vapor resistance test, and has a wide industrial application prospect.

The invention discloses a preparation method and application of samarium-doped lanthanum ferrite nanofibers, and the preparation method is a design thought based on synergistic interaction of'defect engineering 'and'morphology control': samarium (Sm) ions with a specific proportion are creatively introduced to the A site of LaFeO3, and lattice distortion is induced by utilizing radius mismatch between the samarium (Sm) ions and lanthanum (La) ions; therefore, high-concentration gas-sensitive active sites (oxygen vacancies) are generated in the intrinsic structure of the material; and the material is constructed into a one-dimensional nanofiber network with a high specific surface area through an electrostatic spinning technology, so that the exposure efficiency of active sites is maximized.

The invention discloses a magnetic rubber composition, a preparation method thereof and a sealing strip, and belongs to the field of rubber materials. The composition takes ethylene propylene diene monomer as a matrix, and comprises 100-600 parts of modified samarium iron nitrogen, 15 parts of a silane coupling agent Si69, 0.7-1 part of a vulcanizing agent and 5-15 parts of a foaming agent, and 1-10 parts of epoxy grafted modified beta-CD can also be added. The modified samarium-iron-nitrogen is loaded and grafted, and then the sealing strip is prepared through the working procedures of mixing, vulcanizing, magnetizing and the like. According to the sealing strip, carbon black is replaced with the magnetic powder, the VOC release amount and the odor level are reduced, the mechanical property is improved, magnetic attraction force is given, and the problem of rebound deterioration of a traditional sealing strip is solved through surface modification of the magnetic powder.

The invention relates to a Ti element doped high-performance high-temperature samarium cobalt permanent magnet material and a preparation method thereof, and belongs to the field of rare earth permanent magnet materials. Elements of Sm, Co, Fe, Cu, Zr and Ti with the purity higher than 99.9% are uniformly mixed and smelted into an original cast ingot, a powder metallurgy preparation technology is adopted, the cast ingot is ground into alloy powder, and the samarium-cobalt permanent magnet material is prepared through orientation compression, isostatic pressing, high-temperature sintering, solid solution and isothermal aging heat treatment processes. According to the invention, by doping the Ti element, the grain size is increased, the grain boundary impurity phase precipitation is inhibited, and the thickness and the content of the flaky phase are properly reduced, so that the number of reverse magnetization nucleation sites is reduced, and the magnetic properties such as the coercive force and the maximum magnetic energy product of the magnet are effectively improved.

The invention provides a doped yttrium hydride neutron moderation material and a preparation method and application thereof, and belongs to the technical field of radiation shielding materials. At least one of samarium, europium and gadolinium is doped in yttrium hydride in the form of hydride, and the mass ratio of metal yttrium to metal gadolinium to metal europium to metal samarium is controlled, so that the neutron moderation effect of the neutron moderation material can be improved. According to the invention, at least one of gadolinium hydride, europium hydride and samarium hydride is mixed with yttrium hydride under the protective atmosphere, so that the mass content of each element in the doped yttrium hydride neutron moderation material can be accurately controlled. According to the invention, the mixture is sintered and molded, and the sintering parameters of sintering and molding are controlled, so that the components of the mixture are sintered in a compact state, cracks generated by thermal expansion and cold contraction can be reduced, and the doped yttrium hydride keeps high density and has fewer cracks and defects.

According to the preparation method of the free-cutting lead brass alloy, trace elements such as tellurium, cobalt, samarium and selenium are added into lead brass, the tellurium, the selenium and the like can easily form low-melting-point compounds with other elements, grain growth can be inhibited, dispersed distribution of fine lead particles is promoted, stress concentration is reduced, and the cutting performance is improved; by adding cobalt, samarium and the like, grain refinement is facilitated, distribution and forms of selenium, tellurium and other elements are changed, alloy fluidity is promoted, dispersed distribution of lead and the like is promoted to be more uniform, the cutting performance is further improved, in addition, dissolution of lead can be inhibited through the passive film layer, the environment-friendly performance is improved, and harm caused by dissolution of lead is reduced.

Described herein is a chalcogen-halide solid electrolyte material represented by the following chemical formula: LiAxEyGz, or NaAxEyGz. In embodiments, A denotes one or more elements selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), Lanthanum (La), cerium (Ce), samarium (Sm), and boron (B). In embodiments, E denotes one or more chalcogen elements. In embodiments, G denotes one or more halide elements. In embodiments, the following mathematical formula is satisfied: 0<x<10, 0<y<10, z=nx−2y+1, wherein n=3 when A denotes at least one element selected from the group consisting of La, Ce, Sm, and B, and n=2 when A denotes at least one element selected from the group consisting of Mg, Ca, Sr, and Ba. In embodiments, A is a single element selected from the group consisting of Mg, Ca, Sr, Ba, La, Ce, Sm, or B.

The invention discloses a cerium-zirconium-based high-entropy oxide as well as a preparation method and application thereof. According to the cerium-zirconium-based high-entropy oxide, cerium and zirconium serve as main bodies, and meanwhile rare earth elements (lanthanum, praseodymium, neodymium and samarium) and transition metal elements (manganese, iron, cobalt, nickel, copper and zinc) are introduced to form a high-entropy solid solution with the equal molar ratio and containing 3-8 kinds of metal. In the cerium-zirconium-based high-entropy oxide, the cerium element and the zirconium element respectively account for 20%-40% of the total amount, and the other elements are respectively 10%-30% in an equimolar ratio. The cerium-zirconium-based high-entropy oxide catalyst prepared by the invention has excellent oxygen storage and release capacity and CO oxidation capacity, and the CO complete conversion temperature is 181 DEG C. The method adopts a simple coprecipitation process, is mild in condition and low in cost, and is suitable for large-scale application in the field of tail gas purification.

The invention provides an MIM injection molding process of a samarium-cobalt permanent magnet, which comprises the following steps: preparing low-coercivity MIM samarium-cobalt magnetic powder, performing high-vacuum banburying and granulation, controlling the injection molding process and external magnetic field intensity, and finally performing optimized degreasing, sintering and aging processes to prepare the MIM samarium-cobalt permanent magnet. According to the method, the input amount of Sm in the raw materials is reduced and the cost is saved by regulating and controlling the positions of all groups of raw material powder during smelting, and meanwhile, the ordering of magnetocrystalline units during magnetizing after the low-coercivity MIM powder is formed is improved through multi-stage and multi-section sintering and multi-stage and multi-section aging, so that it is guaranteed that the MIM samarium-cobalt magnet obtains high magnetic performance.

The invention discloses a ruthenium-based rare earth composite catalyst and a preparation method and application thereof, the composite catalyst is formed by loading alloy particles of Ru metal and rare earth metal on carboxyl modified lignin derived mesoporous carbon, the molecular formula of the composite catalyst is RuxREy-CLC, x is equal to 0.5-1, y is equal to 0.01-0.1, and RE is any one of neodymium, cerium, lanthanum, samarium, gadolinium, erbium, dysprosium and praseodymium; the catalyst is obtained by coordinating ruthenium ions, rare earth metal ions and carboxyl modified lignin and then carbonizing. According to the ruthenium-based rare earth composite catalyst, more catalytic active sites can be provided through alloy nanoparticle ultra-fining and high dispersion, OH * strong adsorption poisoning is remarkably weakened through introduction of rare earth metal, the excellent alkaline hydrogen evolution reaction electrocatalytic activity is shown, the catalytic stability is improved, and the catalytic activity of the catalyst is improved. The comprehensive performance is obviously superior to that of similar and commercial catalysts, and the catalyst has considerable energy application potential.

The present invention belongs to the fields of catalysts and petrochemicals, and specifically relates to a catalyst, its preparation method, and its application. The catalyst comprises a composite support and an active metal Ni supported on the composite support. The composite support is composed of a modifier and a natural mineral compound, wherein the modifier comprises zirconium and a rare earth metal. The natural mineral is selected from one or more of diatomaceous earth, sepiolite, halloysite, attapulgite, vermiculite, and molybdenite. The rare earth metal is selected from one or more of yttrium, lanthanum, cerium, neodymium, samarium, europium, gadolinium, and ytterbium. The catalyst of the present invention has good structural stability and exhibits high activity and selectivity in the catalytic production of DMS. The catalyst of the present invention exhibits excellent performance in the hydrogenation of DMM to produce DMS, effectively improving DMS selectivity and reducing the production of GBL, BDO, and THF.

The invention discloses a multi-band high-stability ferrite magnetic material composite formula and a preparation process, and relates to the technical field of magnetic materials. The ferrite magnetic material composite formula comprises 38-42 parts of ferric oxide powder, 37-41 parts of ferroferric oxide powder, 6-12 parts of graphene nanosheets, 5-7 parts of hydroxypropyl methyl cellulose, 6-9 parts of lanthanum oxide, 4-6 parts of scandium oxide, 1-3 parts of nano titanium dioxide, 4-6 parts of bismuth magnesium boron, 9-13 parts of ferric sulfate, 3-5 parts of manganese sulfate, 4-6 parts of zinc sulfate, 2-4 parts of copper sulfate and 2-3 parts of samarium sulfate. By utilizing a physical vapor deposition gradient doping process, the problems that an existing ferrite magnetic material is single in electromagnetic performance, cannot stably and efficiently work in a multi-frequency-band complex electromagnetic environment and cannot meet the requirements of the fields of communication, radar, electronic countermeasure and the like for wide-frequency-band and high-performance magnetic materials can be solved.

Disclosed is a reducing agent for synthesizing a nitrogen-containing compound, the reducing agent being composed of a metal complex that contains samarium and a multidentate ligand which is coordinated to samarium. The multidentate ligand has 4 to 8 coordinating atoms that are bonded to samarium, and the coordinating atoms are each independently an oxygen atom or a nitrogen atom.

The invention relates to a samarium cobalt permanent magnet and a preparation method thereof. The preparation method comprises the following steps: providing a samarium-cobalt alloy; the samarium-cobalt alloy is subjected to oxidation heat treatment, the oxidation heat treatment process meets the following relational expression: t = kP / T, t is the heat preservation time, and the unit is h; t is the heating temperature, and the unit is DEG C; p is the vacuum degree, and the unit is Pa; k is a coefficient, and k is equal to 100 to 5000; crushing and pulverizing the samarium-cobalt alloy subjected to oxidation heat treatment to obtain alloy powder; and carrying out orientation molding on the alloy powder to obtain a samarium-cobalt green body, and carrying out sintering treatment to obtain the samarium-cobalt permanent magnet. According to the preparation method, the bending strength can be greatly improved while the high-hardness magnetic performance of the samarium-cobalt permanent magnet is guaranteed, the preparation process is simple and efficient, and the preparation method is suitable for industrial production.

The invention discloses a modification method of a ternary positive electrode material. The modification method comprises the following steps: S1, carrying out a co-precipitation reaction on a solution of transition metal sulfate in an inert gas atmosphere; a sulfate solution of rare earth elements is synchronously added in the coprecipitation process, and a ternary precursor with the surface coated with rare earth hydroxide is formed; and S2, mixing the ternary precursor obtained in the step S1 with a lithium source, calcining in an air atmosphere, and cooling to obtain the fast ion conductor coated ternary positive electrode material, the rare earth elements are selected from one or more of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium; the transition metal sulfate is soluble salt of Ni, Co and Mn. The rare earth element sulfate is added in the coprecipitation process, the rare earth element hydroxide is precipitated on the surface of the precursor, the lithium source is removed after filtering and drying, uniform mixing is performed, and the ternary positive electrode material which contains the rare earth element and is uniformly coated with the fast ion conductor is obtained after calcination, so that side reactions on the surface of the material are reduced; and the cycling stability of the positive electrode material is improved.

This invention discloses a samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal material, its preparation method, and its applications. The samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal material belongs to the monoclinic crystal system, has a space group of Cm, and a chemical formula of Sm. 0.3 La 0.1 :Y 0.6 Ca4O(BO3)3 has a second harmonic response intensity of 0.89 × KDP, and exhibits transmittance exceeding 80% in the 500–1000 nm and 1600–2400 nm wavelength ranges. It also has a strong absorption peak in the 1000–1600 nm wavelength range. Therefore, the samarium-lanthanum co-doped calcium oxyborate yttrium nonlinear optical crystal can be considered as a nonlinear optical crystal material with broad application prospects in the field of optics.

The invention relates to the technical field of photoelectrocatalysis, in particular to a composite photoelectrocatalyst and a preparation method and application thereof. The preparation method of the composite photoelectric catalyst comprises the following steps: (1) adding samarium salt and copper salt into ethylene glycol monomethyl ether, adding acetylacetone, stirring, adding ammonia water, uniformly mixing, and aging to obtain a precursor solution; and (2) coating pretreated conductive glass with the precursor solution obtained in the step (1), and calcining to obtain the composite photoelectric catalyst. The preparation method is simple to operate, clean and efficient, and large-scale production can be realized. The composite photoelectric catalyst prepared by adopting the preparation method can promote the separation of charges, so that the photoresponse current is improved.

The invention relates to a samarium-doped carbon quantum dot as well as a preparation method and application thereof, and belongs to the technical field of nano material synthesis, the preparation method comprises the following steps: carrying out ultrasonic dispersion on 0.01-0.03 g of p-phenylenediamine, 0.05-0.10 g of N-(4-aminophenyl) acetamide and 0.01-0.02 g of samarium chloride (III) hexahydrate in 15-25 mL of ultrapure water to form a mixed solution, carrying out hydrothermal reaction at 160-200 DEG C for 8-12 hours, filtering, washing and drying to obtain the samarium-doped carbon quantum dot. High-speed centrifugation, millipore filtration membrane filtration, 500Da molecular weight interception dialysis and freeze drying processes are sequentially adopted to realize efficient doping of the samarium element and precise purification of the product. The method is easy and convenient to operate, the product uniformity is excellent, and the prepared samarium-doped carbon quantum dots have the strong fluorescence characteristic and chemical stability and can be widely applied to the fields of biomedical imaging, photocatalytic materials and photo-thermal anticancer.

The application discloses a magnet material, a preparation method thereof and a samarium-cobalt magnet material. The preparation method of the magnet material comprises the following steps: hydrogen absorption, airflow grinding, press forming, hydrogen blowing, dehydrogenation and decarburization reaction and sintering of an alloy sheet; a compact is obtained after the press forming; hydrogen is contained in an atmosphere for the airflow grinding treatment; when the hydrogen blowing treatment is performed, the mass ratio of the compact to hydrogen is 10:(0.5-1), and the hydrogen flow is 0.05-0.2 kg / h; the dehydrogenation and decarburization reaction is performed under the condition that the temperature is continuously raised to T, and T is 580-720 DEG C; the continuous temperature rising comprises a first stage and a second stage; the first stage is that the temperature is raised from T0 to T1, and T1 is 400-500 DEG C; the second stage is that the temperature is raised from T1 to T. The carbon content of the magnet material prepared by the application is 50-300 ppm, and the magnet material can further improve the coercive force while maintaining a high remanence.

The invention discloses a method for adjusting the coercive force of a samarium-cobalt permanent magnet material and the samarium-cobalt permanent magnet material, and belongs to the technical field of samarium-cobalt permanent magnet materials. According to the method, two basic powder materials with high samarium content and low samarium content are prepared and mixed in proportion to obtain final powder materials, and then the final powder materials are subjected to forming, isostatic pressing, sintering, solid solution treatment and aging treatment to obtain the samarium-cobalt permanent magnet material with the intrinsic coercive force adjustable in the range of 5-35 kOe. According to the method, other elements do not need to be added, the comprehensive performance of the magnet is not affected, flexible preparation of various coercive force products can be achieved under the same heat treatment process, and the method has the advantages of being simple in process, low in cost, short in period and capable of meeting customization requirements.

The invention relates to a microbial growth activation accelerant based on rare earth elements as well as a preparation method and application thereof, and belongs to the field of resources and environments. The microbial growth activation accelerant based on the rare earth elements is prepared from the following components: 1 to 150g of a rare earth compound, 0.2 to 2g of pantothenic acid, 0.2 to 2g of nicotinic acid, 0.02 to 0.1 g of nicotinamide and 1000g of deionized water, the rare earth compound is one or combination of more of chlorides of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium and yttrium, nitric acid compounds and sulfuric acid compounds. A large number of cheap light rare earth elements are used as raw materials of the microbial accelerator, a new utilization approach is provided for the light rare earth elements, the light rare earth elements are converted into high-added-value products, pollution of the light rare earth elements to the environment is reduced, and meanwhile new elements are introduced into the field of microbial accelerators. More importantly, the preparation method of the microbial growth activation accelerant based on the rare earth elements provided by the invention is simple in production process and convenient for large-scale production.

This invention discloses a method for preparing anisotropic samarium iron nitrogen magnetic powder, belonging to the field of magnetic materials technology. The method includes the following steps: preparing Sm and Fe according to the designed composition, melting them to obtain samarium iron alloy molten steel; casting the samarium iron alloy molten steel onto a cooling roller to obtain iron-samarium alloy sheets; placing the iron-samarium alloy sheets in a vacuum heat treatment furnace for homogenization treatment; cooling the homogenized alloy sheets to 200-300°C; introducing hydrogen into the furnace under vacuum, controlling the absolute pressure of hydrogen at 0.05-0.1 MPa, and hydrogenating for 2 hours; after hydrogenation, raising the temperature to 400°C, filling with nitrogen to 0.5 MPa, raising the temperature to 530°C, and then lowering the furnace temperature to room temperature to obtain the anisotropic samarium iron nitrogen magnetic powder. This invention provides a method for preparing samarium iron nitrogen magnetic powder, which has the advantages of simple preparation process, low energy consumption, high production efficiency, small magnetic powder particle size, high magnetic properties, and good magnetic crystal anisotropy.

The invention provides samarium-iron-nitrogen magnetic powder and a preparation method and application thereof, the samarium-iron-nitrogen magnetic powder comprises a first samarium-iron-nitrogen particle, the surface of the first samarium-iron-nitrogen particle is provided with at least one step structure, and each step structure comprises at least two layers of steps. The surface of the first samarium-iron-nitrogen particle is of a step structure, the first samarium-iron-nitrogen particle is high in density, few in crystal defect and high in intrinsic coercive force, and when the samarium-iron-nitrogen magnetic powder comprising the first samarium-iron-nitrogen particle is applied to preparation of a magnet, the residual magnetism and the intrinsic coercive force of the magnet can be improved, and the service life of the magnet can be prolonged.

The application discloses a kind of multi-element doped system simulation methods for improving the performance of 2:17 type samarium-cobalt permanent magnet, comprising: step one, using the Visualizer module of material calculation software to establish the theoretical model of 2:17 type rare earth cobalt permanent magnet material;Step two, based on the GO module of quantum chemistry calculation software, the theoretical model of different doped systems is analyzed, and then the system with stronger magnetism is found;Based on the quantum chemistry calculation software, the doped model and virtual crystal approximation model of different doped ratios are established to obtain the better doped ratio by comparison.The application discloses a kind of multi-element doped system simulation methods for improving the performance of 2:17 type samarium-cobalt permanent magnet, the theoretical research of the characteristics of rare earth cobalt permanent magnet material itself and doping characteristics is carried out through the first principle, through the implementation of the project, the theoretical analysis of rare earth cobalt permanent magnet material is formed, which provides design idea for developing rare earth cobalt permanent magnet material with better system performance.