29 results about "Magnesium titanate" patented technology

The invention relates to the technical field of friction plates for vehicles, and particularly discloses a resin-based friction plate for an aluminum-ceramic brake disc and a preparation method of the resin-based friction plate for the aluminum-ceramic brake disc. Steel fibers serve as a main reinforcing phase, the structural strength of the material is improved, and meanwhile the steel fibers are good friction increasing materials; the reduced iron powder can improve the heat-conducting property of the brake pad and reduce the decline of the friction coefficient at high temperature; the red copper powder and the brass powder are good lubricants, the stability of single braking can be improved, and meanwhile abrasion is reduced; the silicon carbide mainly plays a role in increasing the high-temperature friction coefficient; molybdenum disulfide is beneficial for improving the recovery performance after high-temperature decline and reducing abrasion; antimony sulfide is lubricated at high temperature, and the friction coefficient in the decline stage is increased; silicon carbide is a high-hardness material, so that the friction coefficient is increased; the potassium magnesium titanate lamellar crystal improves the damping characteristic of the material and absorbs vibration and reduces noise, and the resin-based friction plate has the advantages of being high in strength, good in heat conduction, stable in friction performance, resistant to abrasion, comfortable in braking and the like and meets the use requirement of an aluminum ceramic brake disc.

The invention relates to the field of friction materials, and discloses an electromagnetic brake friction material used for an ultra-long time working condition and a preparation method of the electromagnetic brake friction material. The modified polyimide is a polyimide-silicon rubber interpenetrating complex, and the preparation method of the modified polyimide comprises the following steps: blending a silicon rubber prepolymer with a polyimide precursor and a silicon rubber prepolymer curing agent, and curing to obtain the interpenetrating complex; the reinforcing material comprises aramid pulp, copper fibers, potassium magnesium titanate lamellas, tetrapod-like zinc oxide whiskers and modified aluminum titanate fibers; the friction increasing material comprises nano aluminum hydroxide, fluororubber powder, barite, silicon carbide, feldspar powder, modified white carbon black and cashew nut shell oil friction powder; the antifriction material comprises halloysite nanotubes coated with redox graphene, molybdenum carbon phosphate and graphite fluoride. The friction material provided by the invention can meet the requirements of strength, heat resistance and wear resistance under an ultra-long working condition, and meanwhile, the thermal expansion at high temperature can also be reduced.

A method of remediating a contaminated aqueous medium includes contacting the aqueous medium with an amount of a particulate nanocomposite material that contains elemental carbon (C); an orthorhombic titanium dioxide (TiO2); a tetragonal TiO2 crystalline phase; a cubic cadmium oxide (CdO) crystalline phase; a hexagonal magnesium titanate (MgTiO3) crystalline phase; and, an orthorhombic magnesium titanate oxide (Mg0.6Ti2.4O5). Based on the total number of atoms in the nanocomposite material and as determined by energy dispersive X-ray spectroscopy, the nanocomposite material has an atomic concentration of carbon (C) of from about 1 atomic percent (at. %) to about 5 at. %; an atomic concentration of magnesium (Mg) of from about 5 to about 15 at. %; an atomic concentration of titanium (Ti) of from about 15 to about 30 at. %; and, an atomic concentration of cadmium (Cd) of from about 1 to about 10 at. %.

The invention discloses a method for synthesizing nano magnesium dititanate by a solid phase method, which comprises the following steps: S1, weighing a titanium-containing solid compound, a nano magnesium oxide solid and a hydrolytic alkaline solid compound, uniformly mixing, adding a surfactant, and grinding to obtain a solid mixture; s2, adding a mixed solution with an alcohol-water ratio of 1: 1 into the solid mixture, and grinding to obtain mixed slurry; s3, transferring the mixed slurry into a centrifugal tube, placing the centrifugal tube in a centrifugal machine for centrifugal separation, pouring out supernatant after the centrifugal separation is finished, and obtaining a mixed product after a water washing process and an alcohol washing process are finished; s4, soaking the mixed product in an inorganic acid solution, transferring the soaked mixed product into a centrifugal tube for centrifugal separation, sequentially completing water washing and alcohol washing processes, and then drying to obtain MgO-coated TiO2 with a core-shell structure; s5, carrying out high-temperature calcination on the obtained MgO-coated TiO2 to obtain a nano magnesium dititanate solid; according to the invention, the problems of large particle size and non-uniform chemical composition of the magnesium dititanate powder prepared in the prior art are solved.

The present invention relates to a potassium magnesium titanate capable of increasing the friction coefficient of a high load region when used in a friction material, the potassium magnesium titanate being represented by the compositional formula KxMg0. 4Ti1. 6O4-y in which x is 0.1 < = x < = 0.6 and y = (0.8-x) / 2, the ratio (Ia / Ib) of the peak area (Ia) at 100 cm <-1 > to 165 cm <-1 > to the peak area (Ib) at 215 cm <-1 > to 1-325 cm <-1 > in the Raman spectrum of the potassium magnesium titanate being 0.03 or more, and the ratio (Ia / Ib) of the peak area (Ib) at 215 cm <-1 > to 325 cm <-1 > being 0.03 or more. The ratio (Ic / Ib) of the peak area (Ic) at 785 cm <-1 > to 900 cm <-1 > to the peak area (Ib) at 215 cm <-1 > to 325 cm <-1 > is 0.40 or less.

The present invention provides a thermosetting resin composition that yields a cured product (dielectric substrate) with excellent high dielectric constant and low dielectric loss tangent, a dielectric substrate made from the resin composition, and a microstrip antenna equipped with the dielectric substrate. [Solution] The thermosetting resin composition of the present invention comprises (A) a thermosetting resin, (B) a high dielectric constant filler, and (C) a coupling agent represented by the following general formula (1), wherein the high dielectric constant filler (B) comprises at least one selected from calcium titanate, strontium titanate, barium titanate, magnesium titanate, and titanium oxide. TIFF2026111704000022.tif16153

The invention provides a magnesium oxide-magnesium titanate composite material as well as a preparation method and application thereof, and belongs to the technical field of new energy batteries. Magnesium oxide and titanium oxide are subjected to ball milling and mixing and then subjected to microwave heating treatment, and magnesium titanate composite powder is obtained; the magnesium titanate composite powder and magnesia are subjected to ball milling and mixing, and the magnesium oxide-magnesium titanate composite material is further generated through microwave sintering. The magnesium oxide-magnesium titanate composite material for sintering the positive electrode material is prepared in a microwave sintering mode, the obtained composite material is excellent in performance and has the advantages of being easy to sinter, excellent in strong alkali resistance, good in thermal shock resistance and the like, and the service life of the material for sintering the positive electrode material can be greatly prolonged. The magnesium oxide-magnesium titanate composite material prepared by the invention is cooperatively used with the cordierite-mullite sagger, so that the strong alkali corrosion resistance of the sagger can be improved while excellent thermal shock resistance is ensured.

The invention relates to a pure-crystalline-phase nano-sized magnesium titanate ceramic powder material and a preparation method thereof, the material is nano-sized magnesium titanate nano-ceramic powder with an irregular-shaped pure-crystalline-phase structure, the particle size of the material is 50-100nm, the particle size D50 is less than 100nm after drying and crushing treatment, and the specific surface area is 2-20m < 2 > / g. Compared with the prior art, the preparation process is simple and convenient to operate, extra complex conditions and complex equipment are not needed, the reaction can be carried out by stirring at normal temperature and pressure, and the practical raw materials are cheap and easy to obtain, so that the preparation cost of the material is relatively low; and the prepared magnesium titanate can be used for manufacturing electronic ceramic devices, filter ceramic devices and the like.

A porous particulate nanocomposite material comprising, as determined by X-ray diffraction: carbon; an orthorhombic CaTiO3 crystalline phase; and, a rhombohedral MgTiO3 crystalline phase. Based on the total number of atoms in the nanocomposite material and as determined by energy dispersive X-ray spectroscopy (EDX): the atomic concentration of carbon (C) is from about 1 to about 5 atom % (at. %); the atomic concentration of titanium (Ti) is from about 20 to about 35 at. %; the atomic concentration of magnesium (Mg) is from about 5 to about 15 at. %; and, the atomic concentration of calcium (Ca) is from about 5 to about 15 at. %.

A Mg0.6Ti2.4O5 / MgTiO3 / tetragonal TiO2 / orthorhombic TiO2 / CdO / C nanocomposite material includes an orthorhombic Mg0.6Ti2.4O5 phase; a hexagonal magnesium titanate (MgTiO3) phase, a tetragonal titanium dioxide (TiO2) phase, a cubic cadmium Oxide (CdO) phase, and an orthorhombic TiO2 phase. The Mg0.6Ti2.4O5 / MgTiO3 / Tetragonal TiO2 / Orthorhombic TiO2 / CdO / C nanocomposite material has a granular morphology including spherical particles having an average particle diameter ranging from 50 nanometer (nm) to 130 nm. Furthermore, a method of production includes calcination of metal precursors.

An air cathode and an aluminum-air battery, wherein the air cathode contains an active material, the active material being any one or a mixture of two of the following materials: nickel oxide, iron oxide, manganese oxide, lithium-ion nickel oxide, lithium-ion iron oxide, lithium-ion manganese oxide; strontium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; calcium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; magnesium titanate doped with any one or two of iron, nickel, manganese, and lanthanum; lanthanum nickelate doped with calcium and / or strontium; lanthanum ferrite doped with calcium and / or strontium; lanthanum cobaltate doped with calcium and / or strontium; lanthanum manganate doped with calcium and / or strontium; and graphite or metal carbonitride loaded with a metal.

The invention relates to the technical field of rotary kiln castable, and discloses a three-resistant castable for a rotary kiln and a preparation method of the three-resistant castable for the rotary kiln. Comprising 8 to 10 parts of high-purity tabular corundum fine powder, 25 to 30 parts of mullite, 8 to 13 parts of titanium dioxide, 10 to 15 parts of magnesium titanate, 10 to 13 parts of aluminum titanate, 9 to 12 parts of zinc ferrite, 5 to 8 parts of forsterite, 30 to 45 parts of bauxite, 8 to 12 parts of alumina micro powder, 1 to 3 parts of trizirconium aluminum nitride, 1 to 3 parts of calcium aluminate cement, 0.15 to 0.2 part of sodium tripolyphosphate, 0.9 to 1.6 parts of heat-resistant steel fiber and 0.1 to 0.3 part of allyl polyoxyethylene ether. When a pushing piston moves upwards, a first pushing air bag is extruded, air in the first pushing air bag flows to a second pushing air bag from a connecting pipe, so that the second pushing air bag expands to push a pushing rack, the pushing rack moves to drive a first rotating gear to rotate, a water outlet pipe of a watering barrel extends to the outer side of a water outlet groove, and the pushing rack is reset; and through reciprocating motion of the water spraying structure, more comprehensive spraying on the castable is realized.

This invention discloses a high-nickel cobalt-free cathode material and its preparation method. The preparation method includes the following steps: preparing zirconium-doped high-nickel cobalt-free nickel-manganese hydroxide; adding zirconium-doped high-nickel cobalt-free nickel-manganese hydroxide, lithium hydroxide, magnesium titanate, and zirconium aluminate to water, mixing evenly, and drying to obtain a mixture; placing the mixture in a pure oxygen atmosphere and holding it at 300℃-800℃ for 6-12 hours to obtain high-nickel cobalt-free nickel-manganese lithium oxide; mixing high-nickel cobalt-free nickel-manganese lithium oxide, borosilicate, and tungsten oxide evenly, drying, and sintering to obtain the target product. In this invention, the addition of magnesium titanate and zirconium aluminate during the preparation process makes the material's crystal structure more complete; the synergistic coating of borosilicate and tungsten oxide effectively improves the specific capacity of the material, better stabilizes the crystal structure, and significantly enhances the overall performance of the material.

To provide a resin composition which yields a dielectric substrate having sufficiently high dielectric constant and low dielectric loss tangent, a dielectric substrate composed of the resin composition, and a microstrip antenna including the dielectric substrate.SOLUTION: A resin composition of the present invention contains at least one selected from calcium titanate particles and magnesium titanate particles, subjected to surface treatment with a silane compound.SELECTED DRAWING: None

The invention provides a preparation method of magnesium titanate / tin dioxide / magnesium titanate battery material and its products and applications. Carbon microsphere seeds are dispersed in a titanium salt solution, ultrasonicated, filtered, washed and dried to obtain A; a composite of TiO2 and carbon microsphere seeds is calcined to obtain a composite, which is dispersed in a tin salt solution, and steps 1) and 2) are repeated to obtain a triple composite of tin dioxide, TiO2 and gradually reduced carbon microsphere seeds, which is dispersed in a titanium salt solution, and steps 1) and 2) are repeated until the carbon microsphere seeds are completely consumed to obtain a triple composite of TiO2, tin dioxide and TiO2; the composite and soluble magnesium salt are dissolved in deionized water, magnetically stirred to uniformity, vacuum dried, and calcined at 600-800°C for 3-5 h to obtain magnesium titanate / tin dioxide / magnesium titanate. The first discharge specific capacity is about 199 mAh / g under the condition of 500 mA / g, and the discharge specific capacity is about 175 mAh / g after 50 cycles.

The invention discloses a resin-based friction material, particularly relates to a resin-based friction material with a stable instantaneous friction coefficient, and belongs to the technical field of friction braking. The material comprises the following components in percentage by weight: 5-20wt% of phenolic resin, 5-18wt% of rubber, 20-40wt% of steel wool fiber, 1-5% of aramid fiber, 5-10wt% of crystalline flake graphite, 5-20wt% of barite, 2-6% of stannous sulfide, 1-4% of white corundum, 6-10% of zirconium silicate, 2-8% of artificial graphite, 2-8% of potassium magnesium titanate and the balance of inevitable impurities. According to the method, a unique insight is provided for the film layer influencing the stability of the instantaneous friction coefficient, and the structure of the film layer on the friction surface is effectively controlled according to the principle. The brake pad has the advantages that the instantaneous friction coefficient in the braking process is stably controlled, too fast abrasion in the braking process is avoided, and noise generated by braking can be remarkably reduced.

The present application relates to the technical field of stainless steel material, and particularly discloses a high-temperature-resistant stainless steel for ovens and a preparation method thereof. First, the stainless steel is passivated by using a sodium molybdate electrolyte to inhibit the migration of elements such as chromium in the stainless steel during use. Then, a titanium iron nitride layer and an aluminum titanium nitride / titanium silicon nitride layer are designed on the stainless steel. The two layers work together to transition the thermal expansion coefficient and enhance the high-temperature resistance. The element migration and diffusion are prevented. Finally, a porous magnesium titanate ceramic layer loaded with silver zinc antibacterial agent is deposited. The magnesium titanate ceramic itself has good high-temperature resistance and thermal shock resistance, and has a good thermal conductivity. After impregnating the antibacterial agent and sealing the pores, the magnesium titanate ceramic has good antibacterial performance.

The high-temperature-resistant brake pad material is prepared from the following raw materials in parts by weight: 18 to 22 parts of boron modified phenolic resin, 10 to 15 parts of modified carbon fiber, 4 to 7 parts of aramid fiber, 9 to 13 parts of ferrotitanium powder, 10 to 15 parts of potassium magnesium titanate lamellar crystal, 3 to 5 parts of nitrile rubber powder, 4 to 6 parts of natural graphite, 3 to 5 parts of petroleum coke, 5 to 8 parts of barite and 3 to 5 parts of aluminum oxide. According to the high-temperature-resistant brake pad material, boron-modified phenolic resin serves as a base body, functional components such as modified carbon fibers, aramid fibers, ferrotitanium powder and potassium magnesium titanate lamellar crystals are matched, and through the reasonable formula design and the forming technology, on the basis that it is guaranteed that a brake pad has the excellent friction and wear performance, the high-temperature-resistant brake pad material is obtained; the thermal stability and the interface bonding strength of the material under the high-temperature working condition are remarkably improved, and the problems that a traditional brake pad material is prone to heat fading and interface stripping under the high-temperature braking condition are solved.

The invention relates to the field of ammonia decomposition catalyst preparation, and discloses a magnesium titanate-containing catalyst, a preparation method and application thereof, and a method for producing hydrogen through ammonia decomposition. The magnesium titanate-containing catalyst contains a magnesium titanate carrier and active components, the active components comprise noble metals and non-noble metals, and the non-noble metals are selected from group VIII metal elements; on the basis of the total weight of the catalyst and in terms of metal elements, the content of the active component is 0.5-20 wt%; wherein in terms of metal elements, the mass ratio of the precious metal to the non-precious metal is 1: (5-25). The catalyst has high activity, is applied to hydrogen production through ammonia decomposition, and has high ammonia decomposition conversion rate.

The invention discloses high-weather-resistance chlorination process titanium dioxide and a preparation method. The titanium dioxide comprises a titanium dioxide base material and a coating layer located on the surface of titanium dioxide, the coating layer at least comprises a compact silicon film layer, a zinc silicate film layer and a magnesium titanate film layer from inside to outside; the compact silicon film layer is formed by adding a soluble silicic acid source and a pH regulator into chlorination-process titanium dioxide-based material slurry and homogenizing; the pH value of the slurry is kept to be greater than or equal to 10.0 in the preparation process of the titanium dioxide-based material slurry by the chlorination method. The titanium dioxide provided by the invention has extremely high weather resistance, and can be used in scenes with relatively high weather resistance requirements, such as outdoors and the like.

According to the anti-sticking coating for sintering, TiN or TiC serves as an anti-sticking and blocking material, MgO serves as a shell forming agent, MgO and a TiO2 oxide film formed on the surface of the TiN or TiC form a magnesium titanate (MgTiO3) ceramic phase through a solid-solid diffusion reaction, the magnesium titanate ceramic phase is connected with coarse TiN or TiC particles after high-temperature sintering, and the anti-sticking coating for sintering is obtained. A relatively hard TiN or TiC shell is formed, so that the friction resistance and scratch resistance of the coating are improved, and the service life of the coating is prolonged. According to the sintering tray coated with the anti-sticking coating for sintering, the surface of the coating is free of peeling, cracking and other defects after sintering, the coating is completely reserved, the good and stable barrier effect is achieved, and the problems that impurities are likely to be introduced into an existing sintering anti-sticking coating, the sintering anti-sticking coating reacts with sintered alloy at the high temperature, and the performance of a sinter is deteriorated are solved.

The present invention belongs to the technical field of ceramic materials, and particularly relates to a dielectric ceramic material capable of reducing the sintering temperature of MLCC and a preparation method thereof. By modifying the main crystal phase magnesium titanate and introducing components such as carbon-doped titanium dioxide, strontium zirconium titanate, yttrium-modified alumina and lanthanum oxide composite material, the present invention prepares a dielectric ceramic material capable of reducing the sintering temperature of MLCC. The multi-component synergistic effect reduces the dielectric loss of the dielectric ceramic material, obtains a good temperature coefficient, and reduces the sintering temperature of MLCC through a high specific surface area.

To provide a resin composition for circuit board formation from which a cured product that is excellent in moldability and in a high dielectric constant can be obtained.SOLUTION: A resin composition for circuit board formation contains (A) a high dielectric filler, and (B) a thermosetting resin, wherein (A) the high dielectric filler is one or two or more kinds selected from the group consisting of barium titanate, calcium titanate, storontium titanate, magnesium titanate, bismuth titanate, zirconium titanate, zinc titanate, magnesium zirconate, strontium zirconate, barium zirconate, calcium titanate zirconate, lead zirconate titanate, barium niobate magnesium, and calcium zirconate, and (B) the thermosetting resin is one or two or more kinds selected from the group consisting of an epoxy resin, a benzoxazine resin, a cyanate resin, a BT resin, a bismaleimide resin, a phenol resin, a polyimide resin, a melamine resin and an acrylic resin.SELECTED DRAWING: None

A batch mixture comprising pre-reacted pseudobrookite particles consisting essentially of aluminum titanate and magnesium dititanate, a reactive alumina source, a reactive titania source, and a reactive silica source. Other batch mixtures and methods of manufacturing honeycomb extrudates and porous honeycomb bodies using the batch mixture are disclosed.

This invention discloses a method for preparing titanium dioxide with high photocatalytic activity. First, a metatitanic acid slurry is salt-treated and calcined to prepare a titanium dioxide base material. Then, the titanium dioxide base material is slurried and coated. The salt treatment agent used includes zinc and magnesium salts. An organic dispersant is added during the slurry preparation of the titanium dioxide base material. The coating process sequentially includes zinc titanate coating and magnesium titanate coating. After coating, the method further includes a step of calcining the coated material to decompose the organic dispersant. This application introduces magnesium and zinc ions into both the base material preparation and the post-coating treatment, allowing these ions to enter both the interior of the titanium dioxide crystal lattice and exist on the surface of the titanium dioxide particles. Titanates are introduced into the zinc and magnesium particles on the surface of the titanium dioxide particles. Combined with the use of an organic dispersant during calcination, the surface of the titanium dioxide particles becomes loose and porous, significantly improving the photocatalytic activity of the titanium dioxide.

The invention belongs to the technical field of materials, and particularly relates to a heat insulation coating of a drill rod and a preparation method of the heat insulation coating. 13 to 17 parts of hollow mullite microspheres; 10 to 14 parts of magnesium titanate-silicon carbide composite powder; 6 to 10 parts of silane modified aerogel powder; 6 to 8 parts of mullite whisker; 7 to 9 parts of NiCrAlY alloy powder; the zirconium oxide-mullite composite powder and the hollow mullite microspheres form a high-temperature stable porous matrix, crystalline phase transformation is avoided, the porosity of 30%-35% is maintained, and solid heat conduction is blocked; magnesium titanate-silicon carbide composite powder synergistically scatters and absorbs infrared radiation and inhibits the high-temperature thermal radiation heat transfer proportion, in the preparation method, plasma spraying parameters are accurately controlled, coating crystal phase transformation and aerogel sintering are avoided, and it is guaranteed that the coating is stable in high-temperature structure; the porosity and the infrared shading performance of the coating are not influenced by low-temperature annealing post-treatment, so that the heat conductivity coefficient of the heat insulation coating in the interval of 500-1000 DEG C is stabilized at 0.3-0.5 W / (m.K).

The invention relates to the technical field of stainless steel materials, and particularly discloses high-temperature-resistant stainless steel for an oven and a preparation method of the high-temperature-resistant stainless steel for the oven. Then, a ferrotitanium nitride layer and a titanium aluminum nitride / nitrogen silicon titanium layer are designed on the stainless steel, the ferrotitanium nitride layer and the titanium aluminum nitride / nitrogen silicon titanium layer have a synergistic effect, a transition thermal expansion coefficient is achieved, the high-temperature resistance is enhanced, element migration and diffusion are prevented, finally, a porous magnesium titanate ceramic layer loaded with a silver-zinc antibacterial agent is deposited, and magnesium titanate ceramic is good in high-temperature resistance and thermal shock resistance; and holes are sealed after being impregnated with an antibacterial agent, so that the composite material is endowed with good antibacterial performance.

This invention belongs to the field of refractory materials technology, and relates to a magnesia-carbon core nozzle raw material composition and mass percentage as follows: 55-70% magnesia aggregate with a particle size of 1-0.047mm, 15-30% magnesium titanate with a particle size <0.047mm, 9-12% flake graphite with a particle size of 0.1-0.3mm, 2-3% carbon fiber powder with a particle size <0.047mm, and 1-3% antioxidant with a particle size <0.047mm; the bonding system of the magnesia-carbon core nozzle consists of phenolic resin powder, lithium carbonate, and furfural; after the raw materials and bonding system are mixed and granulated in a high-speed mixer, the billet is dried and the volatile matter is controlled appropriately, then added to the core nozzle mold for medium static pressure molding, and after demolding, the billet is cured and then heat-treated; during the heat treatment process, the magnesia aggregate and the magnesium titanate as the matrix are... m MgO· n TiO2 fine powder undergoes a solid-phase reaction, MgO+ m MgO· n TiO2→ x MgO· y TiO2, where 0.5 < x / y ≤2, magnesium oxide aggregate diffuses into the matrix through solid-phase diffusion, forming reactive annular gaps. This invention improves the mechanical properties and thermal shock resistance of the material.

The invention discloses a microwave dielectric ceramic with low loss and medium dielectric constant and a preparation method thereof, and belongs to the technical field of ceramic materials, the chemical composition of the microwave dielectric ceramic with low loss and medium dielectric constant is Mg (1-3 / 2x) CexTi (1-y) ZryO3, x is more than or equal to 0 and less than or equal to 0.1, and y is more than or equal to 0 and less than or equal to 0.1. The preparation method comprises the following steps: mixing MgO, TiO2, CeO2 and ZrO2 according to a certain ratio, and carrying out ball milling, drying, sieving, pre-sintering, secondary ball milling, drying, granulating, sieving, blank making and sintering to obtain the cylindrical magnesium titanate-based microwave dielectric ceramic. The prepared microwave dielectric ceramic material with low loss and medium dielectric constant solves the technical problems that MgTiO3-based microwave dielectric ceramic is high in sintering temperature, miscellaneous phase MgTi2O5 is easy to generate and large dielectric loss caused by the miscellaneous phase MgTi2O5 is easy to generate, the sintering temperature of the MgTiO3-based microwave dielectric ceramic can be reduced to about 1350 DEG C by the ceramic material, the dielectric constant is about 20, and the microwave dielectric ceramic material with low loss and medium dielectric constant can be used for preparing microwave dielectric ceramic materials with low loss and medium dielectric constant. And the dielectric loss is about 2 * 10 <-5 >.