246 results about "Composite matrix" patented technology

The invention provides an aerogel reinforced composite electrolyte thin film for a solid-state lithium battery and a preparation method of the aerogel reinforced composite electrolyte thin film, and belongs to the technical field of composite electrolytes.The thin film comprises a three-dimensional porous aerogel skeleton, a solid-state electrolyte compound and lithium salt nanocrystals; wherein the three-dimensional porous aerogel skeleton is prepared from inorganic oxide nanoparticles and a polymer precursor through a sol-gel method; pores of the three-dimensional porous aerogel skeleton are filled with the solid electrolyte compound, the solid electrolyte compound comprises lithium lanthanum zirconium oxide nanowires and a polyoxyethylene-lithium salt composite matrix, and the lithium lanthanum zirconium oxide nanowires are directionally arranged in the thickness direction of the film; the lithium salt nanocrystals grow on the surface of the pore wall of the three-dimensional porous aerogel in situ; the mass ratio of the aerogel skeleton to the solid electrolyte compound is (1: 3)-(1: 15). According to the thin film, the ionic conductivity, the mechanical strength and the interface stability of the electrolyte are remarkably improved.

The invention relates to the technical field of lithium secondary batteries, in particular to a negative electrode for a lithium secondary battery and the lithium secondary battery comprising the negative electrode, and the negative electrode comprises the following technical characteristics: a composite matrix structure: the negative electrode is composed of a multi-layer composite structure, and comprises (a) a conductive support layer, (b) a porous active material layer and (c) a surface functionalized coating. According to the invention, through the high porosity structure of the three-dimensional network metal matrix and the vertical conductive channel of the nanowire array, rapid transmission of lithium ions is realized, the interface resistance is reduced, and the rate capability is improved. And under a 10C high-rate condition, the capacity retention ratio of the negative electrode is still greater than or equal to 80%. The gradient pore structure design further optimizes a lithium ion diffusion path, and the diffusion rate of lithium ions is increased to # imgabs0 # by combining with a Poiseuille flow equation optimization parameter, so that polarization is effectively reduced, and the fast charging capacity of the electrode is improved.

The invention provides a reinforcing beam reinforced by adopting an out-of-service wind power blade and a method for determining the bending rigidity. According to the reinforcing beam, a plurality of grooves are formed in at least one surface of a reinforced concrete beam; the reinforcing layer comprises reinforcing ribs and a cement-based composite matrix, a plurality of protrusions are arranged on the surface of the cement-based composite matrix, the protrusions are arranged at intervals in the length direction of the cement-based composite matrix, and the protrusions are correspondingly embedded into the grooves, so that the reinforcing layer is connected with the reinforced concrete beam to obtain a reinforced concrete reinforced beam; wherein the reinforcing ribs are obtained by disassembling and cutting a main beam of the retired wind power blade. According to the reinforcing beam, the combining capacity of the reinforced concrete beam and the reinforcing layer is high, mutual slippage is avoided, the retired wind power blade composite material resources are utilized, the environment is protected, and the cost is saved while high-performance reinforcing treatment can be conducted on the damaged reinforced concrete beam structure or the reinforced concrete beam structure with insufficient bearing capacity.

The present invention relates to the technical field of data analysis, and in particular to a data monitoring-based intelligent supervision system and method for abnormal data. The system comprises a data transceiving module, a matrix processing module, a feature parsing module, an anomaly localization module and a part scaling module; the data transceiving module is configured to send and receive matrix data; the matrix processing module is configured to fit a composite matrix and output a processed matrix; the feature parsing module is configured to determine whether the final processed matrix has a data processing error or not; the anomaly localization module is configured to locate a node device in which an error step has occurred; and the part scaling module is configured to scale a processed matrix of an abnormal device. The present invention can find abnormal data, and locate an abnormal device, thereby reducing the effect of data anomalies on production processes and device performance, helping industrial control systems to discover and solve problems in time, and improving the production efficiency.

The invention provides a low-coupling flexible self-powered multi-mode sensor and a preparation method and application thereof, and belongs to the technical field of flexible electronic materials. Comprising a temperature sensing layer, a pressure sensing layer and a humidity sensing layer which are stacked in sequence. The temperature sensing layer is made of a PEDOT: PSS / MWCNT composite material and outputs a temperature response signal through resistance change; the pressure sensing layer is formed by combining a PDMS layer with a micro-nano structure and a PET layer, and outputs a pressure response voltage signal based on a triboelectric effect; the humidity sensing layer is composed of PVA / CA composite matrix and EGaIn liquid metal, and humidity response signals are output through hygroscopicity induced resistance change. The sensor realizes simultaneous detection of three physical quantities of temperature, pressure and humidity, has low coupling degree among the sensing units, and can be applied to the fields of robot interaction, wearable health monitoring and environment monitoring.

The invention relates to the technical field of polymer composite materials, and discloses a nano-ceramic-based composite insulating coating and a preparation method thereof, and the coating is prepared from a composite resin matrix, a composite functional ceramic filler, a double-reactivity organosilicon linker and an initiator. Wherein the composite resin matrix is composed of vinyl-terminated polydimethylsiloxane and a vinyl ether functionalized fluorocarbon copolymer, and a soft and rigid interpenetrating network structure is formed. The composite functional ceramic filler is prepared from needle-shaped silicon nitride, flaky hexagonal boron nitride, nano silicon dioxide, nano cerium oxide and nano barium titanate. According to the invention, a chemical bonding interface is constructed between the inorganic filler and the organic resin, and the synergistic effect of the composite matrix and the multifunctional filler is optimized, so that the coating has excellent adhesive force, flexibility and thermal shock resistance, obtains high volume resistivity and breakdown strength, and meets the insulation protection requirements under harsh working conditions.

The invention relates to a double-particle and polymer composite matrix hybrid network structure hydrogel sensing material and a preparation method thereof, one-dimensional high length-diameter ratio tCNC rigid particles and CNT conductive flexible particles are controlled by a double-particle hybridization degree, and a force-electricity hybrid double-particle system is formed according to surface interaction and physical entanglement of the tCNC rigid particles and the CNT conductive flexible particles; hybrid double particles are introduced into a polyvinyl alcohol / fibroin composite matrix, and tCNC / CNT particles, particles and molecular chains are physically entangled and act with an interface to promote dispersion of a hybrid double-particle system, so that a co-continuous network of mechanical-conductive synchronous percolation is effectively constructed; a repeated freeze-thaw method is adopted to optimize interaction among substances and microscopic multi-scale network and phase region structures, enhance mechanical-electrical properties and broaden a force-electricity related linear sensing interval, so that the hydrogel has the characteristics of thermal response recycling, molding application and the like.

The invention discloses a sodium ion battery double-layer coated composite sodium supplementing agent and a preparation method and application thereof, and relates to the technical field of new energy batteries, the sodium supplementing agent is composed of an inner core composite matrix and a shell double-coating layer; the core composite matrix is alpha A (1-alpha) D; the shell double-coating layer wraps the outer part of the inner core composite matrix and comprises a first coating layer E and a second coating layer G from inside to outside; wherein A is Na Ni < x > M < 1-x > O < y >, and D is N pi < z >. The invention also discloses a preparation method of the sodium supplementing agent and application of the sodium supplementing agent in a sodium ion battery. The sodium supplementing agent can compensate the loss of irreversible active sodium in the sodium-ion battery, is beneficial to improving the energy density of the battery, realizes the increase of the coulombic efficiency and the cycle index of the battery, and is beneficial to large-scale popularization and application of the sodium-ion battery in the field of energy storage requiring more than 10,000 cycles.

The invention relates to the technical field of liquid cooling heat dissipation, in particular to a liquid cooling heat dissipation structure based on a bionic microchannel and a preparation method of the liquid cooling heat dissipation structure based on the bionic microchannel, and the liquid cooling heat dissipation structure comprises a liquid cooling plate main body, a turbulent flow generation assembly and a gradient heat sink composite layer, the fractal bionic micro-channel comprises a main channel and at least four stages of branch channels, and the last-stage branch channel is distributed in a logarithmic spiral line mode; the turbulent flow generation assembly is composed of triangular prisms and hemispherical pit arrays which are arranged in a staggered mode. The gradient heat sink composite layer comprises a diamond-containing copper composite matrix and a surface micro-nano structure. The bionic micro-channel structure is combined with the micro-channel with specific parameters, an efficient substance transmission system in a living body is simulated, the flowing uniformity of cooling liquid is optimized, generation of local hot spots is reduced, and the overall heat dissipation performance is improved.

The invention relates to the technical field of sodium ion batteries, in particular to a carbon-carbon composite material and a preparation method thereof, a negative electrode plate and a sodium ion battery. The carbon-carbon composite material comprises a composite matrix and a soft carbon coating layer coating the composite matrix, and the composite matrix comprises graphite and hard carbon; the compaction density rho pc of the carbon-carbon composite material satisfies 1.00 g / cm < 3 > < = rho pclt; 1.10 g / cm < 3 >; the volume resistivity rho of the carbon-carbon composite material is 2.20 omega.mlt; rho < lt >; and 3.20 omega.m. By doping the graphite and coating the soft carbon, the electronic conductivity of the carbon-carbon composite material can be effectively improved, and the inherent high compaction characteristic of the graphite and the soft carbon is beneficial to the improvement of the compaction density of the carbon-carbon composite material.

The invention relates to the technical field of layered products, and particularly discloses a skin material for wave-absorbing hiding and a preparation method. The skin material is of a layered structure and comprises a bionic micro-forest wave-transparent layer, a gradient transition layer, a wave-absorbing layer with a'skeleton-matrix 'dual-network structure, a reflecting layer and a heat-insulating layer which are sequentially arranged from top to bottom. A micro-cone array is arranged on the surface of the bionic micro-forest wave-transparent layer, so that broadband impedance matching is realized; the wave-absorbing layer comprises a three-dimensional ceramic skeleton and a magnetic-dielectric composite matrix filled in pores of the skeleton, and magnetic absorbents in the wave-absorbing layer are directionally arranged in the layer plane direction through a magnetic field auxiliary technology. The skin material prepared by the invention has excellent comprehensive performance of ultra-wideband wave absorption, high mechanical strength, light weight and high temperature resistance, and is particularly suitable for stealth requirements in the field of aerospace.

The invention provides a lime-sand polymerized building material for inhibiting saltpetering and a preparation method thereof, and belongs to the technical field of novel building materials, the material comprises a composite matrix material, a composite alkali activator, a slow-release organic acid microcapsule, a modified layered double-metal hydroxide and an saltpetering inhibiting auxiliary agent; the composite base material is formed by compounding fly ash and slag; the composite alkali activator is compounded by water glass and a NaOH aqueous solution; the slow-release organic acid microcapsule is prepared by coating a compound acid formed by mixing citric acid and tartaric acid with hydroxypropyl-beta-cyclodextrin and sodium alginate; the modified layered double hydroxide is prepared by calcining MgAl-LDH, then carrying out surface modification by a silane coupling agent, and then loading nano SiO2; the saltpetering inhibition auxiliary agent is compounded by phytic acid modified lignin microcapsules and thermal response carbonate; the phytic acid modified lignin microcapsule is prepared by modifying sodium lignin sulfonate with phytic acid and then coating with ethyl cellulose and polyvinyl alcohol; the thermal response carbonate is prepared by coating calcium carbonate with stearic acid.

The invention discloses a polyphenol modified carbon fiber reinforced sulfonated polyetheretherketone composite material and a preparation method thereof, and belongs to the field of polymer composites.The preparation method comprises the steps that a resin matrix and filler are filled into a mold to be sintered, the resin matrix is sulfonated polyetheretherketone, the filler comprises modified carbon fibers and nano-silicon dioxide, and the modified carbon fibers and the nano-silicon dioxide are sintered to obtain the polyphenol modified carbon fiber reinforced sulfonated polyetheretherketone composite material; the modified carbon fiber is prepared by taking carbon fiber, catechol and polyethyleneimine as raw materials in a Tris buffer solution. The hydration lubrication performance of a resin matrix is improved through sulfonated polyetheretherketone, the hydrophilic property is enhanced, a polyphenol coating is formed through self-polymerization reaction on the surfaces of the carbon fibers, the adhesion performance of the surfaces of the fibers is improved through the pi-pi stacking effect, and the interface bonding force between the carbon fibers and the modified resin matrix is enhanced; the nano silicon dioxide is introduced to modify the matrix of the composite material, so that not only is the overall wettability of the material optimized, but also the mechanical property and the wear resistance are effectively improved, and the final composite material has the characteristics of high strength and low friction.

The invention relates to the technical field of composite material structure dynamics analysis, and provides a method and system for predicting the inherent frequency of a three-phase functionally graded composite material conical plate, and the method comprises the steps: employing an improved Halpin-Tsai model to calculate the equivalent parameters of a GPL-containing two-phase composite matrix, solving the equivalent parameters of a three-phase composite layer, and calculating the inherent frequency of the three-phase composite material conical plate. The method comprises the following steps: constructing a nonlinear geometrical relationship between a displacement field and a strain field, calculating a stiffness coefficient of each layer, constructing kinetic energy of the three-phase composite material conical plate, calculating an energy coefficient according to the stiffness coefficient of each layer, constructing potential energy of the conical plate according to the energy coefficient, and constructing a modal displacement function by adopting a Chebyshev polynomial and a boundary function. And establishing a characteristic equation based on a minimum potential energy principle and solving to obtain the inherent frequency of the three-phase composite material conical plate. According to the method, efficient calculation of the inherent frequency of the three-phase composite material conical plate is achieved, and the reliability and engineering application value of structural dynamics analysis are remarkably improved.

The invention discloses a polyurethane-containing composite insulating material and a preparation method thereof. The invention relates to the technical field of insulating materials. The insulating material comprises the following components in parts by weight: 85-100 parts of a composite matrix, 15-25 parts of modified silicon carbide and 20-40 parts of a reinforcing filler. According to the polyurethane-containing composite insulating material and the preparation method thereof, silicon carbide is subjected to modification treatment, so that the surface energy of the silicon carbide is reduced, the silicon carbide can be uniformly dispersed in a matrix, the binding force with the polyurethane matrix is improved, crack propagation is reduced, the impact resistance of the material is improved, partial load is borne, and the overall strength and hardness of the material are enhanced; the wear resistance and the deformation resistance are better; the modified silicon carbide uniformly dispersed in the matrix can play a physical barrier role to prevent direct conduction of electrons in the matrix, and more insulating barrier layers are formed in the polyurethane matrix, so that an electron conduction path is lengthened and bent, and the insulating property of the material is improved.

The invention relates to the technical field of hydraulic engineering materials, and particularly discloses a corrosion-resistant rubber dam and a preparation method thereof. The rubber dam is prepared by the following steps: forming a composite matrix (in a mass ratio of 60: 25: 15) by using ethylene propylene diene monomer (EPDM), brominated butyl rubber (BIIR) and hydrogenated butadiene-acrylonitrile rubber (HNBR), adding silane coupling agent modified nano zirconium oxide-aluminum oxide composite powder (ZrO2-Al2O3 with the particle size of 30-80nm) as a corrosion-resistant filler, and carrying out two-stage mixing and gradient vulcanization processes. The tensile strength retention rate of the obtained product in a corrosive environment with the pH value of 1-14 is larger than or equal to 92%, the ultraviolet aging resistance life reaches 30 years, the air tightness is improved by 5 times (the leakage rate is smaller than or equal to 2% / month) compared with a traditional EPDM dam, and the dam is suitable for high-corrosive water areas such as seawater backflow and acid rain.

Typical commercial surface treatments for continuous carbon fibers are often unavailable for discontinuous fibers. As such, there is little variety of chopped fiber surfaces leading to non-ideal coating solutions which result in poor interfacial compatibility between fibers and a composite matrix. A method of applying a highly effective coating using a high throughput technique for chopped carbon fibers. The method provides the ability to tune both the coating thickness and chemical functionality using processing parameters. The coatings are evaluated using X-ray photoelectron spectroscopy (XPS) for uniformity and composition. Using this technique, thermoplastic composites are highlighted showing an increase in interfacial shear strength (IFSS) of 25 MPa. This process shows promise for increasing the throughput of surface treatment of chopped fiber on the industrial scale.

The invention discloses a long-acting cool and refreshing lingering paste based on compound matrix slow release and a preparation method thereof, and belongs to the technical field of cosmetics. The ointment body comprises 20-24 parts of beewax, 35-40 parts of a substance with an HLB (Hydrophile-Lipophile Balance) value of 12-15, 28-35 parts of a freshener and 5-7 parts of a plant extract composition. The plant extract is embedded into the matrix in the form of nano emulsion by combining staged temperature control with a nano emulsion technology. The invention has the following effects: by regulating and controlling the proportion of the beewax and the esters with high HLB (Hydrophile Lipophile Balance) value, a honeycomb porous structure is formed, and the body temperature triggered slow release of high-concentration cooling components is realized; through a low-temperature gradient process, staged temperature control (melting-> 40 DEG C emulsification) is combined with a nano-emulsification technology, and the activity of volatile components is retained (the retention rate gt is 98%). The product provided by the invention has the advantages that the cooling feeling lasts for 4-6 hours, the irritation is obviously lower than that of similar products, and the product is suitable for non-face resident type cooling and refreshing nursing for adults.

Composite matrix materials including a plurality of microgel particles having a mean particle size in a range of about 1 μm to about 100 μpm, and an interstitial matrix, where the composite matrix is characterized by reversible yield-stress behavior at 4°C; methods of preparation of the composite matrix materials; and methods of preparing organoids from the composite matrix materials are disclosed.

The invention belongs to the field of composite materials, and discloses a lignin fiber composite material and a preparation method thereof, the lignin fiber composite material comprises the following components by weight: 30-50 parts of lignin fiber, 25-45 parts of composite matrix resin, 5-12 parts of nano reinforced particles, 3-7 parts of an interface modifier, 4-9 parts of a flexibilizer, 2-6 parts of graphene aerogel, and 3-8 parts of basalt fiber; the invention provides a lignin fiber composite material and a preparation method thereof, wherein the lignin fiber composite material is prepared by combining a multi-element reinforcing system design (lignin fiber / basalt fiber / graphene aerogel / nano silicon dioxide) and an interface modification technology, and solves the problems that a traditional lignin fiber asphalt composite material is poor in interface compatibility and insufficient in mechanical property.

The invention belongs to the technical field of new materials, and discloses a composite material, a preparation method thereof and automobile glass, the composite material is a curved surface, and comprises a composite matrix, a glass plate and an organic back plate from bottom to top in sequence; wherein the composite matrix comprises a plurality of transparent ceramics and a glass matrix, and the plurality of transparent ceramics are spliced and laid in the glass matrix to form a structure that the glass is filled with the transparent ceramics. According to the invention, glass is taken as a matrix, a plurality of transparent ceramics are taken as filling bodies to form a composite matrix structure of partitioned transparent ceramic filled glass, and the composite matrix structure is compounded with a glass plate and an organic back plate, so that the composite material of the curved transparent ceramic filled glass with high safety, light weight, large size (1000mm * 1800mm) is obtained, the light transmittance is 64.2-81.2%, and the bending strength reaches 168.4-213.7 MPa.

The invention relates to the technical field of corrosion-resistant high-temperature sintering kiln furniture, and discloses a gradient composite corrosion-resistant kiln furniture for sintering electronic components and a preparation method thereof, the gradient composite corrosion-resistant kiln furniture comprises a gradient composite matrix, a laser microtexturing layer, an interface strengthening transition layer and a double-layer composite coating, the double-layer composite coating is formed by a rare earth oxide and non-metallic element powder through a high-temperature in-situ reaction, the double-layer composite coating is composed of a porous buffer layer and a compact anti-corrosion layer, and the compact anti-corrosion layer is obtained through a high-speed oxygen fuel spraying and amorphous precursor dipping secondary curing process. The interface strengthening transition layer is introduced into the gradient matrix, the interface strengthening transition layer is formed by the rare earth oxide and the non-metallic element powder through the high-temperature in-situ reaction, a compound phase with chemical inertness and self-healing capacity is constructed, permeation of a corrosion medium into the matrix is effectively blocked, and a compact anti-corrosion layer in the double-layer composite coating has a good anti-corrosion effect. Extremely densification of the coating is completed through high-speed oxygen fuel spraying and amorphous precursor dipping secondary curing.

The invention discloses a 3D printing photocuring forming method for a silicon nitride ceramic framework, and belongs to the technical field of advanced ceramic additive manufacturing. According to the 3D printing photocuring forming method for the silicon nitride ceramic framework, the silicon nitride framework containing a communicating hole array and a special-shaped supporting structure can be prepared through the DLP photocuring technology and customized slurry, the efficient infiltration requirement of a multiphase ceramic matrix is met, and the manufacturing efficiency is improved. The powder dispersity is improved through modification of a silane coupling agent, resin residues are thoroughly removed through cooperative control of a low-shrinkage resin system, segmented exposure, gradient degreasing and sintering, interface reaction with a complex-phase matrix at high temperature is avoided, stable complex-phase performance is guaranteed, layering does not exist after standing is conducted for 24 h through customized slurry, the process stability is extremely high, and the method is suitable for industrial production. Therefore, the problems of single skeleton structure, low dimensional precision and high impurity content in the prior art are solved, a complex three-dimensional pore structure can be prepared, the process stability is high, and the method is suitable for batch production and meets the requirements of multiple scenes such as high-temperature structural parts and multiphase ceramic reinforcement bodies.

The utility model relates to the technical field of sponge city construction, in particular to a sponge city green roof embedded type purification module which comprises a bottom frame box, a purification assembly is arranged on the inner side of the bottom frame box, and a disassembly and assembly assembly is arranged on the outer side of the bottom frame box. The purification assembly comprises a purification box, a filter screen, a biochar composite matrix layer and a zeolite filter layer; the purification box, the filter screen, the biochar composite matrix layer and the zeolite filter layer are sequentially arranged on the inner side of the bottom frame box from top to bottom, the purification box is detachably connected with the bottom frame box, according to the purification assembly, the filter screen filters impurities in rainwater, the biochar composite matrix layer adsorbs organic matter and a modified biochar matrix, and the zeolite filter layer is detachably connected with the bottom frame box. Ions in the zeolite filter layer are exchanged to remove trace elements in the rainwater, so that the rainwater is purified by the purification box in the mounted state, the rainwater purification effect is effectively improved through the structure, and the disassembly and assembly assembly is convenient for separately disassembling, assembling and replacing the purification box.

The invention belongs to the technical field of wall insulation materials, and provides a flame-retardant wall insulation board and a production process thereof. According to the invention, a composite matrix is constructed through a polyurethane prepolymer and bisphenol A epoxy resin, and an interpenetrating network is formed by crosslinking an epoxy group and isocyanate, so that the mechanical strength is improved; and a quaternary flame-retardant system coated with silica sol is adopted, so that gas phase-condensed phase synergistic flame retardance is realized. According to the preparation process, step curing is combined with axial vibration to promote filler arrangement, cell collapse is avoided, low-temperature ultrasonic dispersion guarantees uniform mixing of the nano filler, and the interface adhesion is enhanced through the correlative design of the embossing depth and the plate thickness. The flame retardant property of the obtained product reaches the V-0 level and far exceeds the requirement of the national standard B1 level, the heat conductivity coefficient is superior to that of mainstream products in the market, and the product has excellent heat preservation and heat insulation performance and high safety and has remarkable application value in the field of building heat preservation.

The invention discloses a whisker-reinforced composite porous ceramic material as well as a preparation method and application thereof, which are based on a new process of combining silicon carbide and cordierite and are combined with factors such as silicon carbide particle size and sintering conditions to really realize effective combination of low thermal expansion characteristic of cordierite and high strength characteristic of silicon carbide. The invention aims to synchronously improve the thermal shock resistance and mechanical bearing capacity of a product so as to provide a DPF filter body material with better performance. Furthermore, in order to optimize the filtering performance, mullite whiskers grow in the composite matrix in situ, and a more efficient particulate matter trapping network is constructed, so that the mechanical reliability, the thermal stability and the filtering efficiency are synergistically improved.

The application provides cross-linked esterification modified microcrystalline cellulose and a preparation method thereof, wherein the agglomeration of the microcrystalline cellulose is improved by a double modification method of cross-linking and then esterification, the prepared cross-linked esterification modified microcrystalline cellulose has nanoscale size and high crystallinity, and has good mechanical properties and biocompatibility, and is particularly suitable for the fields of biological stents, tissue repair, drug delivery and biosensors. The application also uses the cross-linked esterification modified microcrystalline cellulose to prepare a collagen composite matrix, and the collagen composite matrix has better mechanical properties, water absorption properties and spatial structure stability, and brings new choices for biomedical material research and application.

The invention discloses a preparation process optimization method and device for a diamond reinforced metal matrix composite material, and relates to the technical field of composite material preparation. The method comprises the following steps: carrying out double-coating surface metallization modification treatment on diamond particles to form a composite coating; mixing the to-be-mixed powder and the to-be-mixed matrix powder according to a preset proportion to obtain composite matrix powder, and uniformly mixing the composite coating and the composite matrix powder to form a mixed raw material; real-time recording of pressureless sintering is carried out, a preparation record log is generated, feedback optimization is carried out on sintering process parameters, and sintering optimization process parameters are generated; and alloying treatment parameters are reconfigured to adjust sintering process parameters of subsequent batches of mixed raw materials, and preparation of the diamond reinforced metal matrix composite is achieved. The technical problem of unstable material performance caused by insufficient bonding strength of diamond and a metal matrix in the prior art is solved, and the technical effect of improving the performance of the diamond reinforced metal matrix composite material is achieved.

The invention relates to nano magnesium hydride powder and a preparation method thereof, and belongs to the technical field of magnesium hydride preparation. The preparation method of the nano magnesium hydride powder comprises the following steps: ultrasonically dispersing a composite base material, an auxiliary agent and deionized water, slowly dropwise adding a modified solution, heating, stirring and filtering, taking out a product, washing, and carrying out vacuum drying and calcining in a drying oven to obtain a composite coating body; magnesium hydride and the composite coating body are placed in absolute ethyl alcohol to be subjected to ultrasonic treatment, ball milling is conducted after vacuum drying is conducted, and the composite coating body is obtained. According to the technical formula provided by the invention, through the synergistic effect of the composite base material, the sodium alginate and the aluminum-zirconium coupling agent, the hydrogen storage capacity and the dehydrogenation rate of the nano magnesium hydride powder are remarkably improved, and the cycling stability is enhanced.

The invention relates to the technical field of material surface engineering and extreme working condition tribology, in particular to a wide-temperature-range composite lubricating component based on multi-scale design and interface self-adaption and a preparation method of the wide-temperature-range composite lubricating component based on multi-scale design and interface self-adaption. The composite lubricating structure comprises, from inside to outside, a metal bonding layer; the composition of the diffusion barrier layer is continuously and gradually changed from the alloy composition matched with the metal bonding layer to the ceramic composition; the self-lubricating functional layer comprises a ceramic metal composite matrix and a plurality of lubricant capsules dispersed in the ceramic metal composite matrix; the lubricant capsule comprises a ceramic shell layer and at least two lubricating phases with different temperature activation characteristics wrapped by the ceramic shell layer. According to the invention, continuous and effective lubrication in a wide temperature range is realized, the friction coefficient can be stabilized below 0.3, and the problems of reduction of the binding force between a coating and a matrix and early failure are solved.