274 results about "Oxide ceramic" patented technology

The invention relates to the technical field of non-oxide ceramic-based composite materials, in particular to Fe-N-based high-entropy nitride ceramic as well as a preparation method and application thereof. The method comprises the following steps: by taking iron powder as a sintering aid, mixing (Hf < 0.2 > Zr < 0.2 > Ti < 0.2 > Nb < 0.2 > Ta < 0.2 >) N high-entropy powder with the iron powder, and carrying out ball milling treatment to obtain ball-milled powder; and under the oxygen-free condition, the ball-milled powder is subjected to sintering treatment, transformation from the loose ball-milled powder to compact and uniform solid solution ceramic is achieved in the sintering treatment process, and the Fe-N-based high-entropy nitride ceramic is obtained. According to the method, a nitride thermal reduction method sintering process is adopted, energy is provided for densification of the Fe-N-based high-entropy nitride ceramic by utilizing reaction heat release of the (Hf0. 2Zr0. 2Ti0. 2Nb0. 2Ta0. 2) N high-entropy powder and the iron powder, the sintering temperature is reduced, energy is saved, and the defect that densification needs to be carried out under a high-temperature condition in the prior art is overcome.

The invention relates to the technical field of ceramic manufacturing processes, and particularly discloses a preparation method of a 96 aluminum oxide ceramic substrate, which comprises the following steps: slurry preparation: carrying out ball milling treatment on high-purity aluminum oxide powder, a sintering aid, a binder, a plasticizer, an organic solvent and a dispersing agent, and fully mixing to obtain tape casting slurry; forming a green body, coating a carrier film with the tape casting slurry through a tape casting machine with a wet film which is uniform in thickness and flat in surface, and drying the carrier film through a drying box in a partitioned manner to obtain a cured green body; and sintering densification treatment: carrying out glue removal treatment on the green body, and carrying out stepped heating sintering to obtain the 96 aluminum oxide ceramic substrate. According to the 96 aluminum oxide ceramic substrate prepared by the scheme, a large number of uniform crystal cores can be formed, small crystal grains can be dissolved, large crystal grains grow at a constant speed, and the uniformity of the crystal grain size is ensured, so that scattering of phonons on a crystal boundary can be reduced, and a structural foundation is laid for improvement of heat conductivity.

The invention discloses a preparation method of a high-strength aluminum oxide ceramic substrate, which comprises the following steps: firstly, modifying aluminum oxide powder by a liquid phase method, and coating a layer of nano magnesium oxide on the surface of the aluminum oxide powder; then carrying out ball milling treatment on the modified powder, rare earth metal oxide, metal oxide, an organic solvent, a binder, a plasticizer and a dispersing agent together, then carrying out defoaming, tape casting, drying and laminated hot pressing to obtain a ceramic green body, and finally carrying out sintering molding in an air atmosphere to obtain the ceramic. The nano magnesium oxide active coating layer constructed in situ and the added exogenous sintering aid act together, so that uniform growth of isometric crystals is promoted, development of a small amount of dominant oriented grains is directionally induced, a composite enhanced microstructure is formed, atomic scale super-uniform distribution and optimal interface combination of the nano magnesium oxide and the exogenous sintering aid are realized, and the nano magnesium oxide / exogenous sintering aid composite material is prepared. The bending strength of the obtained alumina ceramic can reach up to 881 MPa.

The invention discloses a high-corrosion-resistance yttrium oxide coating for semiconductor equipment and a preparation method of the high-corrosion-resistance yttrium oxide coating, and belongs to the technical field of coatings. According to the high-corrosion-resistance yttrium oxide coating for the semiconductor equipment and the preparation method of the high-corrosion-resistance yttrium oxide coating, a SiC transition layer is formed on the surface of a carbon-containing matrix; and an yttrium oxide ceramic coating is deposited on the SiC transition layer in an SPPS plasma spraying mode. The SiC transition layer is firstly formed on the carbon-containing substrate, then the Y2O3 coating is deposited through solution precursor plasma spraying, and a structure with both interface stability and surface protection is formed. SiC is thermally compatible with a substrate, so that undercut, warping and stripping can be inhibited; the dense Y2O3 layer can form a non-volatile protective phase in fluorine-containing / chlorine-containing plasma, thereby reducing the material removal rate and reducing particle release.

The invention relates to the technical field of surface strengthening treatment and coating preparation, in particular to a micro-arc oxidation electrolyte, a preparation method of the micro-arc oxidation electrolyte and a preparation method of an oxide ceramic coating on the surface of a magnesium-copper dissimilar metal material component. The invention provides a micro-arc oxidation electrolyte. The micro-arc oxidation electrolyte comprises a main film-forming agent, an arcing aid, a pH regulator, a corrosion inhibitor and water, the main film-forming agent comprises ammonium fluozirconate and / or potassium fluozirconate; the arcing aid comprises one or more of disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium dihydrogen phosphate and diammonium hydrogen phosphate; the corrosion inhibitor comprises one or more of hexamethylenetetramine, ammonium bifluoride and triethanolamine. The micro-arc oxidation electrolyte breaks through the problem that valve metal and non-valve metal cannot be subjected to arc discharge at the same time for micro-arc oxidation treatment in the micro-arc oxidation process.

The invention provides porous alumina ceramic and a preparation method thereof, and relates to the technical field of ceramic materials. The invention relates to a preparation method of porous alumina ceramic. The preparation method comprises the following steps: dispersing alpha-cellulose powder in deionized water to form a cellulose suspension; stirring to fully swell the cellulose and form uniform gel, and freeze-drying to obtain a template; dissolving aluminum nitrate hexahydrate, magnesium nitrate hexahydrate and yttrium nitrate hexahydrate in absolute ethyl alcohol to obtain a precursor solution; putting gamma-Al2O3 micro powder and ammonium fluoride into a ball milling tank, adding the precursor solution and a dispersing agent, adding zirconium oxide balls and absolute ethyl alcohol into the ball milling tank, and performing ball milling to obtain ceramic slurry; dipping a template into the ceramic slurry, and performing dipping treatment under a vacuum condition to form a composite green body; and sintering to obtain the porous alumina ceramic. According to the porous aluminum oxide ceramic, the process stability is improved, and the problem that the strength is sharply reduced when the porosity is too high is solved.

The invention belongs to the technical field of medium-entropy ceramic materials, and relates to a preparation method of a yttrium-zirconium-cerium ternary medium-entropy oxide ceramic material, which comprises the following steps: weighing Y2O3 powder, ZrO2 powder and Ce02 powder according to a molar ratio of 1: 2: 2, carrying out ball-milling mixing to obtain mixed powder, drying the mixed powder, prepressing into a blank, carrying out microwave sintering, and carrying out sintering to obtain the yttrium-zirconium-cerium ternary medium-entropy oxide ceramic material. Synthesizing a yttrium-zirconium-cerium ternary medium-entropy oxide (Y1 / 3Zr1 / 3Ce1 / 3) O2 ceramic material with an equal molar ratio; according to the invention, the raw materials are simple, the preparation steps are simple, the production efficiency is high, the microwave sintering technology is low in sintering temperature and short in sintering time, microwave is utilized to reduce activation energy of substances to accelerate sintering and generate uniform fine grains, and internal pores of the fine grains are small and round, so that the sintered material has good stability and reprocessability; according to the process, green and continuous production is easy to realize, the production scale and efficiency are further improved, and a new way and thought are provided for industrial microwave sintering preparation of the medium-entropy oxide ceramic material.

The invention discloses conductive silicon nitride composite ceramic and a preparation method and application thereof. The method for preparing the conductive silicon nitride composite ceramic comprises the following steps: performing surface oxidation treatment on first ceramic powder to obtain the first ceramic powder with an oxidation film layer; mixing the second ceramic powder with the first ceramic powder with the oxide film to obtain a mixture; carrying out heating treatment on the mixture under the condition of 1700 DEG C to 2500 DEG C so as to obtain a precursor; and sintering the precursor to obtain the conductive silicon nitride composite ceramic, wherein the first ceramic powder comprises alpha-Si3N4, the second ceramic powder comprises metal oxide ceramic, the oxidation film layer comprises silicon oxide, and the oxidation film layer has active sites; the volume conductivity of the conductive silicon nitride composite ceramic at room temperature is not lower than 1 * 10 < 2 > S / m, and the volume conductivity of the conductive silicon nitride composite ceramic at 1000 DEG C is not lower than 1 * 10 < 3 > S / m. The conductive silicon nitride composite ceramic prepared by the invention has excellent mechanical properties and high conductivity.

The invention relates to the technical field of metal surface protective coatings, in particular to a corrosion-resistant coating for a building aluminum template and a preparation method of the corrosion-resistant coating. The problems that a coating is prone to failure under the stress-corrosion synergistic effect, and the protection service life is short are solved. The coating comprises an organic silicon hybrid bottom layer, a dual-carrier corrosion inhibitor energy storage layer, a microcapsule self-repairing layer and a wear-resistant super-hydrophobic top layer. An oxidized ceramic layer is generated on the surface through micro-arc oxidation, and then a bottom layer is formed through dip-coating of organic silicon hybrid sol and curing; dispersing the porous silicon dioxide microspheres loaded with the corrosion inhibitor and layered double hydroxides in water-based resin to prepare an energy storage coating, and forming a corrosion inhibition energy storage layer; urea resin microcapsules and gelatin-Arabic gum microcapsules are added into a resin matrix to prepare a self-repairing coating, and a self-repairing layer is formed; and finally, mixing the fluorosilane-modified nano aluminum oxide and nano silicon dioxide with wear-resistant organic silicon resin to form a super-hydrophobic top layer.

The invention discloses a preparation method of a zirconium oxide toughened aluminum oxide ceramic substrate, which comprises the following steps: respectively carrying out surface modification on aluminum oxide powder and zirconium oxide powder by adopting a coupling agent, a catalyst and a cross-linking agent, then mixing the two modified powder with a rare earth sintering aid, a dispersing agent, a binder and a plasticizer, and carrying out ball milling treatment, thereby obtaining the zirconium oxide toughened aluminum oxide ceramic substrate. Carrying out tape casting and sintering processes to obtain a target ceramic substrate; the preparation method is simple, the process is easy to control, the bending strength of the prepared zirconium oxide toughened aluminum oxide ceramic substrate can reach 847 MPa at most, and the fracture toughness can reach 7.6 MPa.m < 1 / 2 > at most.

The invention relates to the field of light-emitting devices, and discloses an LED light-emitting device and a manufacturing method thereof, and the LED light-emitting device comprises a composite substrate which comprises an aluminum oxide ceramic substrate and an aluminum nitride ceramic block body; the aluminum oxide ceramic substrate is provided with a hollow area, and the aluminum nitride ceramic block is located in the hollow area; the LED chip is fixed on the upper surface of the aluminum nitride ceramic block body; the box dam is fixed on the upper surface of the composite substrate, the inner surface, facing the LED chip, of the box dam is an inclined surface, and the inclined surface inclines towards the center far away from the composite substrate; all the LED chips are located in the range of the box dam; a first reflective layer on the inclined surface; and the packaging colloid is used for packaging the LED chip. By designing the composite substrate and the box dam with the inner surface being the inclined surface, the lighting effect and the light spot quality of the LED light-emitting device can be improved, and meanwhile the edge yellowing phenomenon is eliminated.

The invention discloses a gradient composite reinforced anti-corrosion treatment method for a metal alloy guardrail, and belongs to the technical field of metal material surface treatment. The method comprises the following steps: carrying out ultrasonic cavitation micro-etching and electrochemical gradient activation pretreatment on the surface of a substrate; a metal ceramic composite layer containing a non-oxide ceramic reinforced phase is generated on the surface in situ through a micro-arc oxidation-chemical vapor deposition coupling process, and a component transition layer is formed with the assistance of vacuum gradient diffusion alloying treatment; and finally, coating an intelligent resin coating containing a corrosion inhibitor capsule and a corrosion indicator, and constructing a super-hydrophobic surface. By constructing a multi-layer composite protection system of the gradient diffusion layer / the metal ceramic layer / the intelligent coating / the super-hydrophobic layer, the anti-corrosion performance is remarkably improved, and the obtained guardrail has excellent bonding strength, wear resistance and long-acting anti-corrosion service life, has the intelligent functions of damage self-repairing and corrosion state visualization and is suitable for popularization and application. The method is especially suitable for harsh service environments.

The application discloses a kind of preparation methods of multi-component photocuring composite ceramic, by adding tetraethyl orthosilicate in multi-component ceramic powder, obtain modified ceramic powder, then it is mixed with photosensitive resin prepolymer, dispersing agent, diluent, photo initiator uniformly, subsequently sequentially through DLP photocuring 3D printing, debinding, sintering after obtaining composite ceramic.The application utilizes the hydrolysis condensation characteristics of tetraethyl orthosilicate, makes it react on the surface of different ceramic powder, uniformly coats silica layer, can improve the phenomenon of curing uneven caused by the difference of refractive index, absorbance and reaction sensitivity of powder;The layer has low refractive index, can also solve the problem of insufficient curing depth of non-oxide ceramic.In addition, during sintering, the silica layer forms Y-Ce-Si-O ternary eutectic system with CeO2 and Y2O3, reduces the initial temperature of liquid phase, further promotes sintering densification, provides a feasible scheme for composite ceramic, high-entropy ceramic 3D printing.

A solid-state battery including: a battery element; an exterior portion on an outer surface of the battery element; an external electrode in contact with the exterior portion; and Bi between the exterior portion and the external electrode, in which the exterior portion includes an oxide ceramic containing: Li; Mg; and one or more elements (M) selected from the group consisting of Group 4 and Group 5 elements.

A turbine blade and related method are disclosed. The blade includes an airfoil body having a radial outermost surface relative to a turbine rotor, a bond coat over the radial outermost surface, and an outermost abrasive layer over the bond coat. The outermost abrasive layer may include a graded oxide ceramic layer or a graded metal ceramic layer. In any event, the outermost abrasive layer is vacuum heat treated to harden the layer, resulting in increased rub and improved clearance between the blade tip, creating a smaller tip gap and lower leakage compared to conventional systems. The heat-treated abrasive layer is also resistant to oxidation at higher temperatures, e.g., greater than 1090° C. (˜2000°F.), caused by the increased use of higher temperature fuels, such as hydrogen. The vacuum heat treatment also results in thermal cycle testing improvements.

The present disclosure provides methods, electrodes, and systems for electrochemical oxidation of polyfluoroalkyl and perfluroalkyl (PFAS) contaminants using Magnéli phase titanium suboxide ceramic electrodes / membranes. Magnéli phase titanium suboxide ceramic electrodes / membranes can be porous and can be included in reactive electrochemical membrane filtration systems for filtration, concentration, and oxidation of PFASs and other contaminants.

The invention discloses a method for preparing high-density yttrium oxyfluoride ceramic by combining a hydrothermal method and hot pressed sintering. The method comprises the following steps: (1) respectively preparing a yttrium nitrate (Y (NO3) 3.6 H2O) solution and an ammonium fluoride (NH4F) solution; (2) mixing the raw materials, and stirring for 10 to 20 minutes; (3) adding a sodium hydroxide solution into the mixed solution to adjust the pH value of the system to 10-12, and continuously stirring for 10-20 minutes to obtain a premixed solution; (4) transferring the premixed solution into a hydrothermal kettle, and carrying out hydrothermal reaction under a high-temperature condition; (5) carrying out centrifugal separation and drying treatment on the hydrothermal reaction product to obtain a yttrium oxyfluoride precursor; (6) calcining the precursor in a muffle furnace in an air atmosphere; and (7) carrying out hot pressed sintering on the obtained powder under the conditions of 750-1000 DEG C and 20-40 MPa, and carrying out heat preservation for 30-90 minutes. The obtained ceramic has high compactness and excellent plasma etching resistance.

The application relates to the technical field of nanometer carbon material preparation, in particular to a nitride / carbide-doped graphene composite material and a preparation method and application thereof. A physical peeling method is used to treat graphite raw materials to obtain intrinsic graphene powder; the intrinsic graphene powder is mixed with powder of at least one oxide ceramic precursor, the intrinsic graphene powder is coated on the surface of the oxide ceramic precursor powder to form a composite precursor; the composite precursor and at least one doping precursor are subjected to high-temperature reaction in a protective atmosphere, the oxide ceramic precursor is reduced and nitrided or carbonized into a corresponding nitride or carbide ceramic phase, meanwhile, the intrinsic graphene is doped to obtain the nitride / carbide-doped graphene composite material. The composite material has excellent heat conduction performance, predictable catalytic activity and mechanical performance, and can be widely applied to heat dissipation of advanced electronic components, high-strength structural ceramics or replacement of noble metals as chemical catalysts.

The present invention relates to a method for coating short fibers, comprising: - de-sizing sized silicon carbide short fibers, - depositing, on the de-sized short fibers, an adhesion promoter made of metal oxide ceramic material having pendent groups at its surface, the adhesion promoter being deposited by atomic layer deposition, and - depositing, on the de-sized short fibers covered with the adhesion promoter, boron nitride by atomic layer deposition, comprising (a) grafting a first Lewis acid precursor comprising boron to the surface of the adhesion promoter by addition onto the pendent groups at the boron atom, and (b) reacting the first grafted precursor with a second precursor comprising nitrogen in order to obtain the boron nitride.

The application belongs to the technical field of microwave absorption, and relates to a wave-absorbing material capable of being inkjet printed and a preparation method thereof. The wave-absorbing material capable of being inkjet printed comprises MXene nanosheets, two-dimensional inorganic nanosheets, water and ethanol, wherein the mass ratio of the two-dimensional inorganic nanosheets / MXene nanosheets is 1-40%, and the volume ratio of the water / ethanol is 0.2-0.8. The preparation method of the wave-absorbing material comprises the following steps: MXene nanosheets are prepared by placing MXene precursor powder in a mixed solution of concentrated hydrochloric acid and lithium fluoride powder for etching; two-dimensional inorganic nanosheets are prepared by mixing layered oxide ceramic powder with acid solution for ion exchange and then carrying out intercalation reaction; and MXene / two-dimensional inorganic composite nanosheet ink is obtained by uniformly dispersing the two kinds of nanosheets in a water / ethanol mixed solvent. The preparation method has low cost, is simple and convenient to operate, and is environmentally friendly, and can realize large-scale production. The prepared wave-absorbing material has good stability, can be integrated on the surface of various rigid and flexible electronic devices in the form of inkjet printing, and can effectively reduce electromagnetic wave pollution.

FIELD: protective coatings.SUBSTANCE: method for forming a protective oxide-ceramic coating on the surface of products made of valve metals and alloys by the plasma electrolytic oxidation method involves immersing the product as an electrode together with a counter electrode in a bath filled with an aqueous alkaline electrolyte, and supplying rectangular pulses of anodic and cathodic voltage to the electrodes using a pulsed power source. Anode and cathode voltage pulses are supplied with a current-free pause between them, the value of which is 4.8 times the duration of the anode pulse. The amplitude values of the cathode voltage pulses range from 85 to 149 V with a pulse repetition frequency from 1000 Hz to 4000 Hz, while the current pulse repetition frequency is additionally regulated.EFFECT: obtaining oxide-ceramic coatings with specified properties under reduced energy conditions, with lower values of cathode voltage.1 cl, 2 ex

The invention discloses a nanocrystalline NiTi shape memory alloy and a preparation method thereof, and the nanocrystalline NiTi shape memory alloy comprises an alloy substrate; the gradient structure layer is formed on the alloy substrate; a gradient structure in the gradient structure layer is a structure which transits from a surface layer amorphous state to an internal nanocrystalline state; and the oxide ceramic layer is formed on the gradient structure layer. According to the nanocrystalline NiTi shape memory alloy provided by the invention, the oxide ceramic layer is combined with the alloy substrate, so that plowing and adhesion effects in a friction process can be directly resisted by virtue of ultrahigh hardness and chemical stability of the nanocrystalline NiTi shape memory alloy, and the nanocrystalline NiTi shape memory alloy becomes a first barrier for wear-resistant protection. And the gradient structure is transited from a surface layer amorphous state to an internal nanocrystalline state. According to the structure, the surface hardness is remarkably improved, and performance mutation between the surface layer and the substrate is relieved by means of the gradient distribution characteristic.

This application discloses a DC-resistant MnZn ferrite material, its preparation method, and its application. The DC-resistant MnZn ferrite material comprises: a main material of MnZn ferrite; a first additive, calculated as oxides by weight percentage of the main material, including 0.3 wt% Co₂O₃, 0.05 wt% ZrO₂, 0.03 wt% V₂O₅, and 0.15 wt% CaO; and a second additive, calculated as oxides by weight percentage of the main material, including 0.1–0.5 wt% YIG ferrite particles. The preparation method is an oxide ceramic method, where the green body is sintered in stages by controlling the temperature and oxygen partial pressure. The MnZn ferrite material of this application, through cobalt doping, YIG ferrite composite, and adjustment of the sintering process, exhibits excellent morphology and combines high magnetic permeability with superior DC-resistant properties.

The invention relates to the technical field of antenna devices and electromagnetic functional materials, and particularly discloses a high-temperature-resistant navigation antenna based on a high-temperature anti-oxidation conductor coating, which comprises an antenna pattern layer, a dielectric substrate and an outer edge shielding layer, and is characterized in that the antenna pattern layer is arranged on the upper surface of the dielectric substrate; the high-temperature anti-oxidation conductor coating is a double-fed circularly polarized microstrip navigation antenna pattern; the dielectric substrate is an oxide ceramic material dielectric substrate; and the outer edge shielding layer is a high-temperature anti-oxidation metal conductor coating and is coated on the outer side surface of the dielectric substrate. The high-temperature-resistant navigation antenna disclosed by the invention has the characteristics of high-temperature-resistant use environment, high-temperature oxidation resistance, 1.27 + / -0.01 GHz frequency band high signal gain and stable standing wave, and solves the problems that a metal antenna pattern is oxidized at high temperature and a dielectric medium organic material system is ablated and damaged at high temperature in a traditional metal antenna pattern / organic dielectric medium navigation antenna material system scheme; and the antenna has good high-temperature navigation antenna engineering application value.

The invention discloses a high-entropy bismuth oxide-based electrolyte and a preparation method and application thereof.The preparation method comprises the steps that a rare earth salpeter solution and a multi-element-doped metal oxide ceramic electrolyte precursor material are fully mixed and dispersed, and a modified precursor material is obtained after centrifugal separation and drying; carrying out secondary roasting on the modified precursor material, and controlling the roasting temperature and time to convert the modified precursor material into a metal oxide precursor material; tabletting and molding the metal oxide precursor material, roasting the molded sheet body, and controlling the roasting temperature and time to realize high-entropy densification of the molded sheet body. According to the invention, a rare earth salpeter solution is used for modifying a multi-element doped metal oxide ceramic electrolytic precursor material prepared by a traditional method, and the high-entropy electrolyte material with high ion transmission performance is obtained through ion exchange-molding roasting and other technical routes.

The application relates to a high-temperature-resistant high-entropy ceramic battery shell and a preparation method thereof. The battery shell comprises a battery shell base material and a high-entropy oxide ceramic coating attached to the surface. The coating comprises an organic-inorganic hybrid cross-linked network and a nano ceramic powder; the powder has a single cubic phase fluorite structure, and a general chemical formula is AB2O4, wherein a rare earth element is a positive trivalent element not containing cerium. The powder particle size distribution satisfies D50 / D90 < 2.5, and a coating and a base material interface form a covalent bond. During preparation, a nano slurry is obtained through high-temperature calcination and sand milling, a bonding system is constructed by combining a silane coupling agent and an inorganic sol, and a high-adhesion coating is generated in situ through coating and low-temperature curing. The application solves the thermal mismatch combination problem of high-entropy ceramics and a metal base material, and significantly improves the limit thermal protection performance of the battery shell under a transient working condition of more than 1600 DEG C.

The application discloses a method for sintering and connecting oxide ceramics in air by using a high-dislocation-density noble metal particle foil, and aims at solving the problems of poor high-temperature stability, poor sealing performance and low mechanical strength of existing ceramic connecting joints. The method for sintering and connecting oxide ceramics comprises the following steps: 1, mechanically ball-milling a noble metal powder; 2, mixing the noble metal particles, a binder, a solvent and a dispersing agent to prepare a slurry, and then flowing the slurry into a noble metal particle intermediate layer foil through a flow forming machine; 3, pre-oxidizing the to-be-welded ceramics by heating to 1000-1100 DEG C in an air atmosphere; 4, ultrasonic cleaning; 5, assembling the to-be-welded parts; and 6, placing the assembled to-be-welded parts in a muffle furnace, and then sintering and connecting the to-be-welded parts by heating to 890-920 DEG C in air. In the application, the noble metal intermediate layer foil is used to connect the ceramics, the noble metal does not react with the ceramics on both sides, the interface is tightly connected, no new phase is generated in the joint, and the high-temperature stability of the joint is enhanced.

The invention discloses a high-strength ceramic metallization method and application thereof. The method comprises the following steps that metallized powder is provided, and the metallized powder is obtained by mixing and ball-milling the following powdery components including, by mass, 70%-75% of refractory metal, 6%-12% of Al2O3, 1%-5% of Mn, 6%-22% of SiO2 and 1%-7% of CaO; uniformly mixing the metallized powder with a binder to obtain metallized slurry; and printing the metalized slurry on the surface of an aluminum oxide ceramic substrate, drying, and sintering in a hydrogen furnace to form a metal layer with the thickness of 15-50 microns on the surface of the substrate. According to the technical scheme, the problems that an aluminum oxide ceramic energy transmission window is prone to sparking, breakdown and the like and the problems that a high-purity fine-grain aluminum oxide ceramic metalized layer is low in sealing strength, poor in compactness and the like are solved, and the obtained metalized aluminum oxide ceramic can be well applied to preparation of a high-power energy transmission window.

A heating panel (112) comprising at least one layered structure (128) is disclosed. The layered structure (128) comprises at least one heating conductor (118) embedded in a first support structure (116) of an oxide ceramic matrix composite (OCMC). The heating panel (112) has a normalized shell thickness Snorm = s / Deq of 0.0001 to 0.01, where s is the thickness of the panel and Deq = 4 A / U, where A is the surface area of the heating panel and U is the circumference of the surface area.