CN105648386B - Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof - Google Patents
Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof Download PDFInfo
- Publication number
- CN105648386B CN105648386B CN201610091244.4A CN201610091244A CN105648386B CN 105648386 B CN105648386 B CN 105648386B CN 201610091244 A CN201610091244 A CN 201610091244A CN 105648386 B CN105648386 B CN 105648386B
- Authority
- CN
- China
- Prior art keywords
- phase
- yttrium oxide
- powder
- aluminium oxide
- composite ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
The present invention relates to thermal spraying aluminium oxide-yttrium oxide composite ceramic coats and preparation method thereof, the aluminium oxide-yttrium oxide composite ceramic coat is formed on the transition of stress layer on metal base or being formed at metallic substrate surface, and the aluminium oxide-yttrium oxide composite ceramic coat includes α-Al2O3Phase, γ-Al2O3Phase, c-Y2O3Phase, m-Y2O3Mutually and by aluminium oxide and the generated in-situ Y of yttrium oxidexAlyOzPhase, the YxAlyOzFor Y3Al5O12、Y4Al2O9And/or YAlO3, wherein α-Al2O3Phase and γ-Al2O3The mass ratio of phase is 1:(2~3).The present invention uses aluminium oxide-yttrium oxide composite ceramic coat of hot-spraying technique preparation, and coating structure is fine and close, and the porosity is lower.Al2O3And Y2O3Between be not dissolved, can be with in-situ preparation Y in spraying processxAlyOzCompound plays the role of dis-persion toughening and strengthens phase interface, and coating interface layer combines preferably, and obdurability and thermal shock resistance are improved.
Description
Technical field
The present invention relates to thermal spraying aluminium oxide-yttrium oxide composite ceramic coats and preparation method thereof, belong to wear-resistant ceramic painting
Layer technical field.
Background technique
Oxide ceramic material has the characteristics that high intensity, high rigidity, wear-resistant, high temperature resistant, anti-oxidant, corrosion-resistant, table
Reveal preferable comprehensive performance, being applied to high specific pressure as heat spray coating layer material, (i.e. high PV value: P is footprint pressure；V is to rub
Wipe rate), high temperature, oxygen-enriched, harsh thermal shock, the harsh abrasion military service operating condition such as deep-etching there are preferable potentiality, can be by metal
The advantages of substrate and oxide ceramic coating, combines, and is expected to obtain good engineer application.However, oxide ceramics plasticity and toughness
Low, crack sensitivity is strong, restricts its application.Previous correlative study is concentrated mainly on the obdurability for improving oxide ceramics,
Including the following aspects: 1. particulate reinforcement includes toughness phase toughening by ductile metal particle and hard ceramic phase particle toughening.It is usually used in
The granular materials of oxide ceramics toughening mainly has Ni, Al, Cu, SiC, TiC, TiB2Deng.The addition of ductile metal phase can make to split
The stress concentration at line tip is released, and the corresponding crackle in Crack-area is not easily formed, and crack growth resistance increases, i.e., material is disconnected
Split toughness raising；The addition of hard ceramic phase, can be by refining matrix grain and crackle shielding action, precession before dissipation crackle
Power reaches toughening purpose.Its simple process is easy, and at low cost, when the parameter selections such as the type, size, content of particle are appropriate,
Toughening effect is more apparent.In order to reach good toughening effect, particle nanosizing is developing direction.2. fiber (or it is brilliant
Must) toughening, high strength fibre (or whisker) as second-phase dispersion be distributed in ceramic matrix when, increased by two ways
It is tough, first is that making crack propagation approach inflection phenomenon occur, to increase energy to failure；Second is that when fiber (or whisker) is drawn from matrix
When de-, portion of energy is consumed in the form of extracting function, is conducive to prevent crack propagation.It is usually used in the fiber of oxide ceramics toughening
(or whisker) has SiC fiber (or whisker), Si3N4Whisker, carbon fiber and fiber B etc..3. transformation toughening, it is to utilize tetragonal phase
(t phase) ZrO2Martensitic traoformation is changed into monoclinic phase (m phase) ZrO2Generated volume and form effect and absorb more energy,
To make oxide ceramic material show compared with high-fracture toughness.4. ingredient or structure gradient toughening are become by ingredient or structure
Change forms functionally gradient material (FGM), can substantially eliminate macroscopic interface, effectively solves the mutation of material internal performance, reaches the mesh for mitigating thermal stress
's.
Plasma spray technology is in extensive range with its sprayed on material, substrate deposition temperature range is wide, coating layer thickness is controllable and range
(several microns to several millimeters), technology stability be good greatly, the reliable advantage of coating quality becomes the effective technique for preparing ceramic coating
Method, and space flight, aviation, automobile, machinery, the energy, metallurgy, petrochemical industry, in terms of be widely applied.Above-mentioned four
The typical ceramic toughening method of kind has their own characteristics, and shows preferable toughening effect, but these in Ceramic Composite bulk
Method just embodies apparent limitation when hot-spraying technique combines, and is in particular in: 1. for Ceramic Composite bulk,
Grain toughening will reach preferable toughening effect, and average grain diameter should be submicron order or nanoscale.Prepare thermal Sperayed Ceramic Coatings
Using it is wide be plasma spray process, plasma spray coating is rapid solidification.Institute's spraying ceramic coat crystal grain
For size usually in submicron order, particle is not obvious composite coating toughening effect.If using the smaller nano particle of partial size into
Row toughening is expected to obtain better effects.Nano particle through mist projection granulating can exist in composite coating structure, but nano particle
It being difficult to control in the ratio of coating crystal boundary or intra-die, composite coating obdurability variation range is big, mechanical property poor repeatability,
Ceramic coating obdurability can not be effectively improved.2. fiber (or whisker), although toughening can improve the mechanical property of coating, it is grown
Diameter is than big, and fiber (or whisker) will keep moderate bond strength between matrix.However, in thermal spray process, particle
It is fusing or semi-molten state, the original draw ratio of fiber (or whisker), surface-functionalized processing and intensity are difficult to ensure.It receives
When rice fiber (or whisker) mixes, it can also encounter and face similar problem with aforementioned nano particle.Therefore, fiber is (or brilliant
Must) toughening is more difficult is effectively combined with hot-spraying technique.3. adding ZrO2Or Y2O3Partially stabilized ZrO2(YSZ) it can also be used to increase
Tough ceramic coating.Problem brought by this way is: ZrO2Or the thermal coefficient of YSZ is low, and thermal expansion coefficient is larger, high temperature,
Under high specific pressure, harsh thermal shock synergic wear working condition, it is easy to accumulate heat on coat inside and coating/substrate interface and answer
Power, stress concentration lead to coating micro-crack extension, shorten composite ceramic coat friction durability.4. gradient coating toughening often needs
It prepares more single layer to be overlapped, the finite thickness system of each single layer, and needs to carry out different ingredient or structure control, work
Skill is troublesome, it is difficult to meet actual requirement, and the hardness and strength of gradient coating entirety are also undesirable.
The above traditional ceramics toughening methods combined with hot-spraying technique be difficult to effectively improve oxide ceramic coating it is tough
Property.In one-component oxide abrasion-proof ceramic coat, Al2O3And Cr2O3Coating wear resistance is superior to ZrO2Coating.More
Under harsh wear working condition, Al2O3The abrasion-resistance of coating is better than Cr2O3Coating, this has higher thermally conductive mainly due to the former
Performance.Therefore, Strengthening and Toughening research at present is more directed to thermal spraying Al2O3Coating mainly has: 1. feed particles nanosizing.Using
Mist projection granulating nanometer Al2O3Particle is the coating that raw material obtains, and mechanical property is better than painting corresponding to traditional micron particles
Layer.2. adding metal phase.The addition of second phase metal (such as Al, Ni, Mo) improves Al2O3The fracture toughness and thermal conductivity of coating
Rate shows preferable wear-resisting property.3. being dissolved tough.More it is typically Al2O3–TiO2And Al2O3–Cr2O3System.TiO2
Fusing point is lower, the solid solution and part TiO of formation2It is easy in Al2O3The aggregation of coating grain boundaries, can improve coating splat internal junction
With joint efforts, inhibit transversal crack extension.Al2O3–Cr2O3Composite coating is shown than single Al2O3The better mechanics of coating, it is thermally conductive and
Wear-resisting property.Above-mentioned improvement Al2O3Coating strength and Toughness has made some progress, but there are still some problems: 1. grinding in harshness
High frictional heat produced by damage operating condition causes coating nanostructure unstable；2. Nanostructured Ceramic Coatings crystal boundary is more, to phonon
Scattering process is big, and thermal conductivity is caused to decline, and is unfavorable for applying under harsh wear working condition；3. addition metal phase make coating hardness and
Intensity decline, is unfavorable for it and is on active service under harsh operating condition, and the interfacial combined function of metal phase and ceramic matrix is more difficult to control；④
TiO2Addition make coating high-temp creep resistance reduce, mechanical behavior under high temperature decline；5. solid solution is in high/low temperature military service ring repeatedly
Under border, it may appear that precipitation phenomenon again destroys solid solution structure and performance in spraying state coating.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to above-mentioned disadvantage of the existing technology, thermal spraying oxidation is provided
Aluminium-yttrium oxide composite ceramic coat and preparation method thereof, the purpose is in the harsh mill such as high specific pressure, high temperature, oxygen-enriched, harsh thermal shock
Compactness, mechanical property, heating conduction, Coating combination performance and the wear-resisting property that ceramic coating is improved under military service operating condition are damaged, it can
Avoid previous nanostructure, metallic second phase addition, compound solid solution effect under above-mentioned harsh abrasive conditions to ceramic coating
Performance and service life adverse effect.
In order to reach this purpose, the present invention provides a kind of aluminium oxide-yttrium oxide composite ceramic coat, the oxidations
Aluminium-yttrium oxide composite ceramic coat is formed on the transition of stress layer on metal base or being formed at metallic substrate surface,
And the aluminium oxide-yttrium oxide composite ceramic coat includes α-Al2O3Phase, γ-Al2O3Phase, c-Y2O3Phase, m-Y2O3Mutually and by
Aluminium oxide and the generated in-situ Y of yttrium oxidexAlyOzPhase, the YxAlyOzFor Y3Al5O12、Y4Al2O9And/or YAlO3, wherein α-
Al2O3Phase and γ-Al2O3The mass ratio of phase is 1:(2~3).
It include generated in-situ by aluminium oxide and yttrium oxide in aluminium oxide provided by the invention-yttrium oxide composite ceramic coat
YxAlyOzPhase, the YxAlyOzDis-persion toughening can mutually be played the role of and strengthen phase interface, coating interface layer combines preferably, by force
Toughness and thermal shock resistance are improved.Nano coating structure, metallic second phase addition, solid solution effect be can avoid in Gao Cheng
To ceramic coating mechanical property, microstructural stability and military service longevity under the harshness wear working condition such as load, high temperature, oxygen-enriched, harsh thermal shock
The possible adverse effect of life institute.And α-Al in composite coating of the invention2O3The content of phase significantly improves, and α-Al2O3's
Thermal conductivity and intensity are better than γ-Al2O3, while the Y introduced2O3The heating conduction of itself is also preferable, this will improve composite ceramics and apply
The thermal conductivity of layer reduces the thermal stress generated between ceramic coating and metal base due to thermal expansion coefficient difference, to alleviate
The extension of coat inside micro-crack improves ceramic coating in the harsh wear-resisting property and useful life worn under military service operating condition.
Preferably, α-the Al2O3The mass fraction of phase is 9~24%.
Preferably, the c-Y2O3The mass fraction of phase is 9~29%, and m-Y2O3Phase and c-Y2O3The mass ratio of phase is 1:
(3~4).
Preferably, the YxAlyOzPhase mass fraction is 6~10%.
Preferably, the aluminium oxide-yttrium oxide composite ceramic coat is with a thickness of 250~500 μm.
The present invention also provides a kind of aluminium oxide-yttrium oxide composite ceramic coat preparation methods, comprising:
(1) metal base is pre-processed, including surface is preliminarily sprayed to metal base and carries out roughening and purified treatment；
(2) composite powder alumina powder and yttrium oxide powder is uniform through mechanical mixture, obtaining；
(3) composite powder obtained by (2) is deposited on to the surface of pretreated metal base obtained by (1) using thermal spraying,
Obtain the aluminium oxide-yttrium oxide composite ceramic coat；Or before depositing composite powder, first after the pretreatment obtained by (1)
The surface of metal base sprays transition of stress layer, then composite granule obtained by (2) is deposited on transition of stress layer using thermal spraying,
Obtain the aluminium oxide-yttrium oxide composite ceramic coat.
Preferably, the metal base is stainless steel, alloy or metal-base composites, after the metal base is roughened
Surface roughness Ra be 5~10 μm, the transition of stress layer is nickel chromium triangle (NiCr) or nickel aluminium (NiAl) alloy, with a thickness of 40~
100μm。
Preferably, the mass fraction of alumina powder described in step (2) is the 20%~40% of composite granule, partial size is big
It is 15~45 μm small.
Preferably, yttrium oxide powder particle size described in step (2) is 15~45 μm.
Preferably, thermal jet described in step (3) is painted with plasma spray coating, plasma spray process parameter are as follows: wait from
40~50slpm of sub- gases argon flow, plasma gas 6~10slpm of hydrogen flowing quantity, 630~690A of electric current, power 45~
50kW, powder feeding carrier gas 3~4slpm of argon flow, 30~40g/min of powder feeding rate, 100~120mm of spray distance.Wherein slpm
For the abbreviation of standard liter/min.
Preferably, the powder granularity size distribution ranges of transition of stress layer described in step (3) are 35~65 μm, the spray
Painting transition of stress layer is plasma spray coating, plasma spray process parameter are as follows: plasma gas argon flow 50~
70slpm, plasma gas 8~12slpm of hydrogen flowing quantity, 550~620A of electric current, 40~45kW of power, powder feeding carrier gas argon gas stream
Measure 3~4slpm, 20~30g/min of powder feeding rate, 110~130mm of spray distance.Wherein slpm is the contracting of standard liter/min
It writes.
The present invention uses aluminium oxide-yttrium oxide composite ceramic coat of hot-spraying technique preparation, and coating structure is fine and close, stomata
Rate is lower.Al2O3And Y2O3Between be not dissolved, can be with in-situ preparation Y in spraying processxAlyOzCompound plays dis-persion toughening
With the effect for strengthening phase interface, coating interface layer is combined preferably, and obdurability and thermal shock resistance are improved.
In spraying process, Y2O3Addition be conducive to α-Al in coating2O3Therefore the stabilization of phase is applied with single aluminium oxide
Layer is compared, in aluminium oxide-yttrium oxide composite ceramic coat phase composition, α-Al2O3Phase and γ-Al2O3The content of phase increases than obvious
Add, and α-Al2O3Thermal conductivity and intensity be better than γ-Al2O3, while Y2O3The heating conduction of itself is also preferable, this will improve multiple
The thermal conductivity of ceramic coating is closed, the thermal stress generated between ceramic coating and metal base due to thermal expansion coefficient difference is reduced,
To alleviate the extension of coat inside micro-crack, improvement ceramic coating is in the harsh wear-resisting property worn under military service operating condition and effectively
Service life.
Detailed description of the invention
Fig. 1 is two kinds of powder scanning electron microscope patterns: (a) aluminium oxide；(b) yttrium oxide；
Fig. 2 is the X ray diffracting spectrum of aluminium oxide-yttrium oxide composite powder and coating；
Fig. 3 is the scanning electron microscope pattern of different yttria levels composite ceramic coat polished cross-sections: (a) 30%；(b)
20%；(c) 40%；
Fig. 4 is the composite ceramic coat section constituent analysis that yttria levels are 30%；
Fig. 5 is comparison photo (500 DEG C of heat preservations before and after aluminum oxide coating layer and aluminium oxide-yttrium oxide composite ceramic coat thermal shock
Water quenching is 40 times total after 30 minutes): (a) aluminum oxide coating layer；(b) aluminium oxide-yttrium oxide composite ceramic coat (yttrium oxide quality
40%) score is；
Fig. 6 is aluminum oxide coating layer, yttria coating and aluminium oxide-yttrium oxide composite ceramic coat (yttrium oxide mass fraction
For 20%) room temperature thermal conductivity and thermal diffusion coefficient；
Fig. 7 is that aluminum oxide coating layer and aluminium oxide-yttrium oxide composite ceramic coat match progress high-mechanic mill with graphite respectively
Damage test obtain change over time friction coefficient curve (ring-block abrasive manner, load 1000N, friction velocity 0.84m/s,
Wearing- in period 60min)；
Fig. 8 is aluminum oxide coating layer and aluminium oxide-yttrium oxide composite ceramic coat (yttrium oxide mass fraction is 20%) pairing
Graphite wear test floating coat and the respective wear rate of graphite；
Fig. 9 is the mill of aluminum oxide coating layer and aluminium oxide-yttrium oxide composite ceramic coat (yttrium oxide mass fraction is 30%)
Damage surface topography: (a) Al2O3；(b)Al2O3- 30wt%Y2O3；
Figure 10 is that yttria levels are obtained by 60% composite ceramic coat with graphite pairing progress high-mechanic wear test
Friction coefficient curve (ring-block abrasive manner, load 1000N, friction velocity 0.84m/s, the wearing- in period that must be changed over time
60min)。
Specific embodiment
Following implementation further illustrates the present invention, it should be appreciated that following embodiments are merely to illustrate the present invention, rather than
The limitation present invention.
The present invention is with Al2O3And Y2O3A kind of aluminium oxide-yttrium oxide composite ceramic coat, following example are prepared for for raw material
Illustrate the aluminium oxide-yttrium oxide composite ceramic coat preparation method.
The pretreatment of metal base, it may include surface is preliminarily sprayed to metal base and carries out roughening and purified treatment.Wherein,
Metal base can be stainless steel, alloy or metal-base composites.After being roughened to metallic substrate surface, metal base is thick
Surface roughness Ra after roughening is 5~10 μm, and roughening is conducive to improve the associativity between spray-on coating and metal base
Energy.Then purified treatment is carried out to metallic substrate surface.As an example, it is first white through 20# that 2Cr13 stainless steel substrate can be chosen
Emergy carries out blasting treatment, and operating pressure 0.4-0.5MPa then carries out EtOH Sonicate and cleans 5 minutes, then empty with compression
Gas is dried up.
Alumina powder and yttrium oxide powder is uniform through mechanical mixture, the available composite powder for subsequent spraying
Material.Wherein, the mass fraction of yttrium oxide powder can be the 20%~40% of composite granule.Y2O3Addition be conducive to α-in coating
Al2O3The stabilization of phase, α-Al2O3Thermal conductivity and intensity be better than γ-Al2O3, while Y2O3The heating conduction of itself is also preferable, this
The thermal conductivity of composite ceramic coat will be improved, is reduced between ceramic coating and metal base due to the generation of thermal expansion coefficient difference
Thermal stress improves ceramic coating in the harsh wearability worn under military service operating condition to alleviate the extension of coat inside micro-crack
Energy and useful life.Above-mentioned coating performance improvement is not achieved when yttria levels are less than 20% (such as 0%), yttrium oxide
The hardness decline of composite coating is larger when content is more than 40% (such as 60%), is unfavorable for taking under high-mechanic harshness abrasive conditions
Labour.Yttrium oxide particle size is 15~45 μm, and alumina powder particle size is 15~45 μm.Suitable particle size distribution range has
Conducive to the quality for guaranteeing spray-on coating.When partial size is less than 15 μm, powder transports mobility and starts to be deteriorated, and some fine powders may
The nozzle of spray gun is blocked, and fly out macro aggregate particle residue at random to go out in coat inside induction crackle and hole, fine powder
It now superfuses, will appear sputtering type when substrate surface sprawls deposition and sprawl pattern, bond strength is bad；When partial size is greater than 45 μm
When, powder is likely to occur the insufficient phenomenon of melting, and a large amount of no cofusing particle can be left in this way in spraying, is caused in coating splat
Portion combines bad, and then coating mechanics and wear resistance decrease.The type of aluminium oxide and yttrium oxide powder can be but not only limit
In one of melting breaking type, reunion slug type, nodularization dense form and spray drying type.
Composite powder is deposited on to the surface of pretreated metal base using thermal spraying, obtains the aluminium oxide-oxygen
Change yttrium composite ceramic coat.Wherein thermal spraying can be but be not limited only to plasma spray coating, using detonation flame spraying or can also surpass
Velocity of sound flame-spraying.As an example, plasma spray process parameter are as follows: plasma gas argon flow 40~
50slpm, plasma gas 6~10slpm of hydrogen flowing quantity, 630~690A of electric current, 45~50kW of power, powder feeding carrier gas argon gas stream
Measure 3~4slpm, 30~40g/min of powder feeding rate, 100~120mm of spray distance.The coating layer thickness of acquisition can be 250~500 μ
M, coating layer thickness are advantageously selected for being on active service under harsh wear working condition, and stress accumulation is larger in the excessive spraying process of coating layer thickness,
The longer coating of spray time is likely to occur sintering phenomenon, mechanics and wear resistance decrease；Coating layer thickness is too small in wear process
Middle service life reduces, in addition, the too small polishing processing uniformity to the later period of thickness brings difficulty.
Or can also be before depositing composite powder, first the surface of metal base sprays transition of stress after the pre-treatment
Layer, then gained composite granule is deposited on transition of stress layer, obtain the aluminium oxide-yttrium oxide composite ceramic coat.It is described
The powder granularity size distribution ranges of nickel chromium triangle (NiCr) or nickel aluminium (NiAl) alloy are 35~65 μm in transition of stress layer.Wherein spray
Applying transition of stress layer can be but be not limited only to plasma spray coating, vacuum plasma spray, supersonic flame spraying etc..As
One example, the technological parameter of plasma spray coating are as follows: plasma gas 50~70slpm of argon flow, plasma gas hydrogen
8~12slpm of flow, 550~620A of electric current, 40~45kW of power, powder feeding carrier gas 3~4slpm of argon flow, powder feeding rate 20
~30g/min, 110~130mm of spray distance.
Transition of stress layer can be nickel chromium triangle (NiCr) or nickel aluminium (NiAl) alloy, research shows that high-mechanic (i.e. high PV value) is compound
(often with high temperature, Strong oxdiative, big thermal shock) under harshness abrasion service condition, the heat abruptly increase for the generation that rubs, coating thermal conductivity
It is higher, it is also easier that these heat transfers radiate to metal base, and to surrounding enviroment.The addition of transition of stress layer to
The temperature gradient between friction surface and metal base further can be effectively controlled, thus since heat is swollen between coating and substrate
The thermal stress that swollen difference of coefficients generates is just smaller, so coating is not easily susceptible to cracking or peels off；, whereas if without transition of stress
Layer, then thermal stress concentration easily causes the micro-crack of coat inside to extend rapidly, during fatigue wear, coating is easy to happen
Cracking peels off, its wear-resisting property is caused to drastically reduce.The transition of stress layer is with a thickness of 40~100 μm, thickness excessive stresses
Accumulate it is larger, be unfavorable for ceramic layer abrasion be on active service；Thickness deficiency will cause spraying unevenly, the decline of transition of stress layer performance,
Stress regulating effect cannot sufficiently be shown.
Aluminium oxide produced by the present invention-yttrium oxide composite ceramic coat is through X diffraction analysis, including α-Al2O3Phase, γ-
Al2O3Phase, c-Y2O3Phase and m-Y2O3In addition to this phase further includes coated in thermal jet by mutually non-solid-solution aluminium oxide and yttrium oxide
Generated in-situ Y in journeyxAlyOzPhase, such as Y3Al5O12(YAG)、Y4Al2O9(YAM) or YAlO3(YAP) equal.α-Al2O3Phase
Content compare single aluminum oxide coating layer and have and significantly increase, this is because in spraying process, Y2O3Addition be conducive to coating
Middle α-Al2O3The stabilization of phase.c-Y2O3Phase and m-Y2O3The total content of phase can be according to the Y of addition2O3The amount of material powder determines.
Generated in-situ YxAlyOzCompound can play the role of dis-persion toughening and strengthen phase interface, and coating interface layer combines preferably,
Obdurability and thermal shock resistance are improved.Nano coating structure, metallic second phase addition, solid solution effect be can avoid in Gao Cheng
To ceramic coating mechanical property, microstructural stability and military service longevity under the harshness wear working condition such as load, high temperature, oxygen-enriched, harsh thermal shock
The possible adverse effect of life institute.
Enumerate embodiment further below with the present invention will be described in detail.It will similarly be understood that following embodiment is served only for this
Invention is further described, and should not be understood as limiting the scope of the invention, those skilled in the art is according to this hair
Some nonessential modifications and adaptations that bright above content is made all belong to the scope of protection of the present invention.Following examples are specific
Technological parameter etc. is also only an example in OK range, i.e. those skilled in the art can be done properly by the explanation of this paper
In the range of select, and do not really want to be defined in hereafter exemplary specific value.
Embodiment 1
Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof, method includes the following steps:
(1) metal base is pre-processed, comprising: surface is preliminarily sprayed to metal base and is carried out at roughening and purification
Reason.Two kinds of 2Cr13 stainless steel substrates: 1. square piece (30mm × 15mm × 1.25mm)；2. annulus (Φ outer diameter 40mm × Φ internal diameter
16mm × 10mm) blasting treatment first is carried out through 20# white fused alumina sand, operating pressure is 0.4~0.5MPa, then carries out EtOH Sonicate
Cleaning 5 minutes, then dried up with compressed air.Stainless steel substrate surface roughness Ra average value is 7.32 μ after pretreatment
m；
(2) using hot-spraying technique in processed metallic substrate surface deposition of aluminium oxide-yttrium oxide composite ceramic coat.
First by partial size be 15~45 μm alumina powder and partial size be 15~45 μm yttrium oxide powder through drum-type mechanical mixture
The composite powder that is uniformly dispersed is obtained after 48h, wherein the mass fraction of the yttrium oxide powder is 30%.Alumina powder is melting
Breaking type, yttrium oxide powder are reunion slug type (see Fig. 1).The object of above two powder is mutually α-Al2O3 and c-Y2O3 respectively
(see Fig. 2).Nichrome transition of stress layer, alloy powder granularity ruler are first sprayed in processed 2Cr13 stainless steel substrate surface
Very little distribution is 35~65 μm, using plasma spraying process, and design parameter is as follows: plasma gas argon flow
60slpm, plasma gas hydrogen flowing quantity 8slpm, electric current 580A, power 42kW, powder feeding carrier gas argon flow 3slpm, powder feeding speed
Rate 20g/min, spray distance 120mm.In addition to the above atmospheric plasma spraying, can also using vacuum plasma spray,
Supersonic flame spraying etc..Nickel-chrome alloy layer is with a thickness of 60~80 μm.Then it is sprayed in nichrome tie layer surface plasma
Apply aluminium oxide-yttrium oxide composite ceramic coat, spraying parameter are as follows: plasma gas argon flow 45slpm, plasma (orifice) gas
Body hydrogen flowing quantity 9slpm, electric current 650A, power 46kW, powder feeding carrier gas argon flow 4slpm, powder feeding rate 35g/min are sprayed
Distance 110mm.In addition to the above atmospheric plasma spraying, detonation flame spraying or supersonic flame spraying can also be used.Composite ceramic
Porcelain coating layer thickness is 440~460 μm.Contain α-Al2O3, γ-Al2O3, c-Y2O3 and m- in obtained composite ceramic coat
Y2O3 phase (see Fig. 2).Wherein the mass ratio of α-Al2O3 and γ-Al2O3 is 1:2, and the α-Al2O3 in single aluminum oxide coating layer
Mass ratio with γ-Al2O3 is 1:9.Thus illustrate, spraying prepares α-Al2O3 in aluminium oxide-yttrium oxide composite ceramic coat
Phase stability is more preferable, this is beneficial to improve coating mechanics and heating conduction.
Prepared aluminium oxide-yttrium oxide composite ceramic coat polishing section pattern is shown: coating's air hole ratio is low, consistency
Height, and the interface cohesion between ceramic coating, nickel-chrome alloy layer, stainless steel substrate is intact (see Fig. 3).Constituent analysis shows Al2O3
With Y2O3Form Y in situ in spraying process3Al5O12And Y4Al2O9Compound (see Fig. 4).Wherein, α-Al2O3Phase mass fraction
For 18%, γ-Al2O3Phase mass fraction is 45%, c-Y2O3Phase mass fraction is 22%, m-Y2O3Phase mass fraction is 6%,
Y3Al5O12Phase mass fraction is 4%, Y4Al2O9Phase mass fraction is 5%.It is demonstrate,proved in conjunction with coating cross sections pattern and EDAX results
It is bright: Al2O3And Y2O3Between be not dissolved, can be with in-situ forming compound in spraying process, this will play dis-persion toughening and reinforcing
The effect of phase interface, coating interface layer combine preferably, are conducive to its obdurability and thermal shock resistance is improved.
Further, aluminium oxide-wear-resisting property of yttrium oxide composite ceramic coat under the conditions of high-mechanic is investigated.Using ring-
Block abrasive manner (coating is deposited on ring circumferential outer edge surface), DRY SLIDING, load 1000N, friction velocity 0.84m/s (turn
Speed be 400rpm), wearing- in period 60min, abrasive material be graphite block (30mm × 7mm × 6mm), and with single aluminum oxide coating layer
It compares.Test result shows: aluminium oxide-yttrium oxide composite ceramic coat/graphite pair coefficient of friction is very low, numerical value
Stability is good, and average value is μ=0.045, hence it is evident that is better than single aluminum oxide coating layer (see Fig. 7).Worn surface is shown: through grinding
After damage, aluminium oxide-yttrium oxide composite ceramic coat surface does not almost see there is polishing scratch in addition to having graphite-phase residual.However, single
There is obvious white strip polishing scratch in aluminum oxide coating layer wear surface (see Fig. 9).In conclusion aluminium oxide-yttrium oxide composite ceramics
Coating has better wear-resisting property.
Embodiment 2
Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof, method includes the following steps:
(1) metal base is pre-processed, comprising: surface is preliminarily sprayed to metal base and carries out roughening and purified treatment
Metal base selection and preprocess method are same as Example 1.Stainless steel substrate surface roughness after pretreatment
Ra average value is 6.56 μm.Square piece sample is observed for Cross Section Morphology and thermal shock test, and ring specimen is for carrying out fretting wear
Test；
(2) using hot-spraying technique in processed metallic substrate surface deposition of aluminium oxide-yttrium oxide composite ceramic coat
Select the preparation method of composite powder same as Example 1, wherein the difference is that: the quality of yttrium oxide powder
Score is 40%.Nichrome transition of stress layer, alloy powder granularity are first sprayed in processed 2Cr13 stainless steel substrate surface
Size distribution ranges are 35~65 μm, using plasma spraying process, and design parameter is as follows: plasma gas argon flow
55slpm, plasma gas hydrogen flowing quantity 9slpm, electric current 600A, power 43kW, powder feeding carrier gas argon flow 3.5slpm, powder feeding
Rate 22g/min, spray distance 120mm.In addition to the above atmospheric plasma spraying, it can also be sprayed using vacuum plasma
Painting, supersonic flame spraying etc..Nickel-chrome alloy layer is with a thickness of 60~80 μm.Then in nichrome tie layer surface plasma
Spray aluminum oxide-yttrium oxide composite ceramic coat, spraying parameter are as follows: plasma gas argon flow 47slpm, plasma
Gas hydrogen flowing quantity 8slpm, electric current 670A, power 47kW, powder feeding carrier gas argon flow 4slpm, powder feeding rate 40g/min spray
Apply distance 115mm.In addition to the above atmospheric plasma spraying, detonation flame spraying or supersonic flame spraying can also be used.It is compound
Thickness of ceramic coating is 420~440 μm.Respective coatings polishing section pattern is shown: coating's air hole ratio is low, and consistency is high, and makes pottery
Porcelain coating, nickel-chrome alloy layer, the interface cohesion between stainless steel substrate are intact (see Fig. 3).
Prepared aluminium oxide-yttrium oxide composite ceramic coat is subjected to constituent analysis, analysis shows α-Al2O3Phase quality point
Number is 15%, γ-Al2O3Phase mass fraction is 37%, c-Y2O3Phase mass fraction is 29%, m-Y2O3Phase mass fraction is 9%,
Y3Al5O12Phase mass fraction is 4%, Y4Al2O9Phase mass fraction is 4%, YAlO3Phase mass fraction is 2%.By aluminum oxide coating layer
Thermal shock test, actual conditions are carried out with aluminium oxide-yttrium oxide composite ceramic coat square piece sample are as follows: after 500 DEG C keep the temperature 30 minutes
Water quenching is 40 times total.After thermal shock 40 times repeatedly, aluminium oxide-yttrium oxide composite ceramic coat is without any cracking or peeling.So
And single aluminum oxide coating layer only peel off area after thermal shock 40 times and significantly increase (see Fig. 5) there have been peeling by thermal shock 6 times.Cause
This, aluminium oxide-yttrium oxide composite ceramic coat has preferable thermal shock resistance, this shows its fracture toughness with higher
And bond strength.
Further, aluminium oxide-wear-resisting property of yttrium oxide composite ceramic coat under the conditions of high-mechanic is investigated.Fretting wear
Experimental condition is same as Example 1.Test result shows: aluminium oxide-yttrium oxide composite ceramic coat/graphite pair friction
Coefficient is lower, better numerical value stability, and average value is μ=0.066, hence it is evident that is better than single aluminum oxide coating layer (see Fig. 7).
Embodiment 3
Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof, method includes the following steps:
(1) metal base is pre-processed, comprising: surface is preliminarily sprayed to metal base and is carried out at roughening and purification
Reason.Metal base selection and preprocess method are same as Example 1.Stainless steel substrate surface roughness Ra is average after pretreatment
Value is 8.19 μm；
(2) using hot-spraying technique in processed metallic substrate surface deposition of aluminium oxide-yttrium oxide composite ceramic coat
Select the preparation method of composite powder same as Example 1, wherein the difference is that: the quality of yttrium oxide powder
Score is 20%.Nickel alumin(i)um alloy transition of stress layer, alloy powder granularity are first sprayed in processed 2Cr13 stainless steel substrate surface
Size distribution ranges are 35~55 μm, using plasma spraying process, and design parameter is as follows: plasma gas argon flow
65slpm, plasma gas hydrogen flowing quantity 12slpm, electric current 560A, power 45kW, powder feeding carrier gas argon flow 3.5slpm are sent
Powder rate 25g/min, spray distance 125mm.In addition to the above atmospheric plasma spraying, it can also be sprayed using vacuum plasma
Painting, supersonic flame spraying etc..Nickel alumin(i)um alloy layer is with a thickness of 60~80 μm.Then in nickel alumin(i)um alloy tie layer surface plasma
Spray aluminum oxide-yttrium oxide composite ceramic coat, spraying parameter are as follows: plasma gas argon flow 49slpm, plasma
Gas hydrogen flowing quantity 7slpm, electric current 680A, power 48kW, powder feeding carrier gas argon flow 3.5slpm, powder feeding rate 37g/min,
Spray distance 105mm.In addition to the above atmospheric plasma spraying, detonation flame spraying or supersonic flame spraying can also be used.It is multiple
Closing thickness of ceramic coating is 440~460 μm.Respective coatings polishing section pattern is shown: coating's air hole ratio is low, and consistency is high, and
Ceramic coating, nickel alumin(i)um alloy layer, the interface cohesion between stainless steel substrate are intact (see Fig. 3).
Prepared aluminium oxide-yttrium oxide composite ceramic coat is subjected to constituent analysis, analysis shows α-Al2O3Phase quality point
Number is 24%, γ-Al2O3Phase mass fraction is 53%, c-Y2O3Phase mass fraction is 13%, m-Y2O3Phase mass fraction is 4%,
Y3Al5O12Phase mass fraction is 2%, Y4Al2O9Phase mass fraction is 4%.Laser flash method measures aluminum oxide coating layer and oxidation
Aluminium-yttrium oxide composite ceramic coat room temperature thermal diffusion coefficient and thermal conductivity, statistics indicate that: composite ceramic coat has than single
The better heating conduction of aluminum oxide coating layer (see Fig. 6).This is beneficial to coating and is on active service under harsh working condition.
Further, aluminium oxide-wear-resisting property of yttrium oxide composite ceramic coat under the conditions of high-mechanic is investigated.Fretting wear
Experimental condition is same as Example 1.Test result shows: aluminium oxide-yttrium oxide composite ceramic coat/graphite pair friction
Coefficient is lower, better numerical value stability, and average value is μ=0.078, hence it is evident that is better than single aluminum oxide coating layer (see Fig. 7).Meanwhile with
Aluminum oxide coating layer/graphite pair is compared, no matter coating or graphite, aluminium oxide-yttrium oxide composite ceramic coat/Graphite friction
Pair shows lower wear rate (see Fig. 8).
Comparative example 1
In order to absolutely prove thermal spraying aluminium oxide-yttrium oxide composite ceramic coat performance advantage of the invention, also make
For single Al2O3As a comparison case, preparation method is same as Example 1 for coating, wherein the difference is that: only use pure zirconia
Aluminium powder body is as spraying raw material.Al2O3Coating layer thickness is 440~450 μm, nichrome transition of stress layer is with a thickness of 65~75 μm.
Coating bull ring prepared by embodiment 1, embodiment 2, embodiment 3 and comparative example 1 is matched with same material graphite block respectively, is examined
Examine tribology behavior of coatings friction pairs under the conditions of high-mechanic.It is described in friction and wear test method and embodiment 1 identical.Knot
Fruit shows: compared with single aluminum oxide coating layer, aluminium oxide-yttrium oxide composite ceramic coat shows lower coefficient of friction, rubs
Wiping factor stability is more preferable, the wear rate of coating and graphite is lower (see Fig. 7 and Fig. 8).This, which has benefited from composite ceramic coat, has
Better thermal shock resistance and heating conduction (see Fig. 5 and Fig. 6), illustrate that the obdurability of composite ceramic coat is higher.
Comparative example 2
The mass fraction for selecting yttrium oxide powder in composite powder is 60%, and it is compound that thermal spraying prepares aluminium oxide-yttrium oxide
Ceramic coating, preparation method is referring to embodiment 1.Composite ceramic coat is with a thickness of 450~460 μm, nichrome transition of stress layer
With a thickness of 60~70 μm.Prepared aluminium oxide-yttrium oxide composite ceramic coat is subjected to constituent analysis, analysis shows α-Al2O3Phase
Mass fraction is 10%, γ-Al2O3Phase mass fraction is 27%, c-Y2O3Phase mass fraction is 40%, m-Y2O3Phase mass fraction
For 12%, Y3Al5O12Phase mass fraction is 4%, Y4Al2O9Phase mass fraction is 4%, YAlO3Phase mass fraction is 3%, and
Under the conditions of identical wear testing, composite ceramic coat and graphite pairing obtain coefficient of friction obviously become larger, average value be μ=
0.235, numerical stability is deteriorated (see Figure 10), this, which is primarily due to excessive yttrium oxide, keeps the hardness of composite ceramic coat significant
Decline.In addition, yttrium oxide thermal expansion coefficient is changed greatly with temperature raising, and when yttria levels are excessively high, this biggish heat
The coefficient of expansion changes the germinating and extension that will lead to coating phase interface crackle, is unfavorable for coating wear resistance improvement.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff is not departing from the spirit and scope of the invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, anything that does not depart from the technical scheme of the invention, and according to the present invention
Technical spirit any simple modifications, equivalents, and modifications to the above embodiments, belong to technical solution of the present invention
Protection scope.
Claims (7)
1. a kind of aluminium oxide-yttrium oxide composite ceramic coat, which is characterized in that the aluminium oxide-yttrium oxide composite ceramic coat
It is to directly adopt the composite powder uniformly obtained by alumina powder and yttrium oxide powder through drum-type mechanical mixture through thermal spraying
It is formed on substrate or is formed on the transition of stress layer of substrate surface, the mass fraction of the yttrium oxide powder is compound
The 20%~40% of powder, particle size are 15~45 μm, and the alumina powder particle size is 15~45 μm；The substrate is
Metal base, stainless steel substrate, alloy base material or metal-base composites, and the aluminium oxide-yttrium oxide composite ceramic coat
Including α-Al2O3Phase, γ-Al2O3Phase, c-Y2O3Phase, m-Y2O3Mutually and by aluminium oxide and the generated in-situ Y of yttrium oxidexAlyOz
Phase, the YxAlyOzFor Y3Al5O12、Y4Al2O9And/or YAlO3, wherein α-Al2O3Phase and γ-Al2O3The mass ratio of phase is 1:(2
~3)；The transition of stress layer is nickel chromium triangle or nickel alumin(i)um alloy, with a thickness of 40~100 μm；The aluminium oxide-yttrium oxide composite ceramics
Coating layer thickness is 250~500 μm；The thermal jet is painted with plasma spray coating, plasma spray process parameter are as follows: plasma (orifice) gas
Body 40~50slpm of argon flow, plasma gas 6~10slpm of hydrogen flowing quantity, 630~690A of electric current, 45~50kW of power,
Powder feeding carrier gas 3~4slpm of argon flow, powder feeding rate 30~40g/ minutes, 100~120mm of spray distance.
2. aluminium oxide according to claim 1-yttrium oxide composite ceramic coat, which is characterized in that the α-Al2O3Phase
Mass fraction is 9~24%.
3. aluminium oxide according to claim 1-yttrium oxide composite ceramic coat, which is characterized in that the c-Y2O3The matter of phase
Measuring score is 9~29%, and m-Y2O3Phase and c-Y2O3The mass ratio of phase is 1:(3~4).
4. aluminium oxide according to any one of claim 1-3-yttrium oxide composite ceramic coat, which is characterized in that described
YxAlyOzPhase mass fraction is 6~10%.
5. a kind of preparation method of the aluminium oxide as described in any one of claim 1-4-yttrium oxide composite ceramic coat, feature
It is, comprising:
(1) substrate is pre-processed, including surface is preliminarily sprayed to substrate and carries out roughening and purified treatment；
(2) alumina powder and yttrium oxide powder is uniform through drum-type mechanical mixture, obtain composite powder；
(3) composite powder obtained by step (2) is deposited on using the plasma spray coating and pre-processes rear substrate obtained by step (1)
Surface obtain the aluminium oxide-yttrium oxide composite ceramic coat；Or before depositing composite powder, first in step (1) institute
The surface spraying transition of stress layer of rear substrate must be pre-processed, then composite granule obtained by step (2) is sunk in using plasma spraying
Product obtains the aluminium oxide-yttrium oxide composite ceramic coat on transition of stress layer.
6. preparation method according to claim 5, which is characterized in that the surface roughness Ra after substrate roughening is
5~10 μm.
7. preparation method according to claim 5 or 6, which is characterized in that the powder of transition of stress layer described in step (3)
Size distribution is 35~65 μm, and the spraying transition of stress layer is plasma spray coating, plasma spray process
Parameter are as follows: plasma gas 50~70slpm of argon flow, plasma gas 8~12slpm of hydrogen flowing quantity, electric current 550~
620A, 40~45kW of power, powder feeding carrier gas 3~4slpm of argon flow, powder feeding rate 20~30g/ minutes, spray distance 110~
130mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091244.4A CN105648386B (en) | 2016-02-18 | 2016-02-18 | Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610091244.4A CN105648386B (en) | 2016-02-18 | 2016-02-18 | Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105648386A CN105648386A (en) | 2016-06-08 |
| CN105648386B true CN105648386B (en) | 2018-12-07 |
Family
ID=56489525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610091244.4A Active CN105648386B (en) | 2016-02-18 | 2016-02-18 | Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105648386B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544621A (en) * | 2016-11-18 | 2017-03-29 | 无锡明盛纺织机械有限公司 | A kind of preparation method of composite anti-wear coating |
| CN107254655B (en) * | 2017-06-22 | 2019-06-21 | 大冶有色金属有限责任公司 | A kind of Ausmelt furnace lance head and its manufacture craft |
| CN108918615B (en) * | 2018-07-19 | 2020-01-14 | 东北大学 | Electrochemical sensor for measuring manganese in molten steel and preparation method thereof |
| CN109266992B (en) * | 2018-08-30 | 2020-10-27 | 昆明理工大学 | Preparation method of high-temperature wear-resistant alumina ceramic matrix composite coating |
| CN111286224B (en) * | 2018-12-07 | 2021-12-07 | 中国计量大学 | High-temperature chlorine corrosion resistant coating for boiler heating surface and preparation method thereof |
| CN111850451A (en) * | 2019-04-30 | 2020-10-30 | 上海大学 | Self-lubricating wear-resistant composite coating and preparation method thereof |
| CN110331362A (en) * | 2019-08-21 | 2019-10-15 | 重庆臻宝实业有限公司 | The composite coating and preparation method of resisting plasma corrosion |
| CN112899617B (en) * | 2019-12-04 | 2023-03-31 | 中微半导体设备(上海)股份有限公司 | Method, device, component and plasma processing device for forming plasma-resistant coating |
| CN112939584B (en) * | 2021-04-01 | 2023-01-06 | 咸阳蓝光热工科技有限公司 | Ceramic/metal composite furnace tube and preparation method and application thereof |
| CN113584417B (en) * | 2021-08-02 | 2022-08-02 | 重庆臻宝实业有限公司 | Rare earth metal salt ceramic composite coating and preparation method and application thereof |
| CN113584421A (en) * | 2021-08-05 | 2021-11-02 | 重庆臻宝实业有限公司 | Method for enhancing bonding strength of yttrium oxide coating and substrate surface |
| CN115772043A (en) * | 2021-09-06 | 2023-03-10 | 沈阳富创精密设备股份有限公司 | Preparation method of plasma spraying yttrium oxide coating on ceramic substrate |
| CN113773119B (en) * | 2021-10-09 | 2022-11-22 | 醴陵市东方电瓷电器有限公司 | High-performance carbon-carbon crucible surface coating and preparation method thereof |
| CN115287594B (en) * | 2022-08-22 | 2023-12-05 | 广东省科学院新材料研究所 | Binary reinforced thermal barrier coating and preparation method and application thereof |
| CN115448720A (en) * | 2022-09-01 | 2022-12-09 | 郑州振中电熔新材料有限公司 | Preparation method of plasma spraying yttrium oxide coating powder |
| CN115974589A (en) * | 2022-11-30 | 2023-04-18 | 歌尔股份有限公司 | Composite burning bearing plate and preparation method thereof |
| CN116426150A (en) * | 2023-05-31 | 2023-07-14 | 中国科学院兰州化学物理研究所 | High-performance insulating coating material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1083244A1 (en) * | 1999-09-08 | 2001-03-14 | Sulzer Metco AG | Alumina-based thick films obtained by plasma spraying |
| CN101215683A (en) * | 2007-12-28 | 2008-07-09 | 河海大学 | Method for increasing combination strength of plasma spraying ceramic coat and substrate |
| CN101280405A (en) * | 2008-04-30 | 2008-10-08 | 中国科学院上海硅酸盐研究所 | Lanthanum oxide-aluminum oxide composite coating prepared by plasma spraying method |
| CN102409280A (en) * | 2011-12-01 | 2012-04-11 | 安徽禹恒材料技术有限公司 | Aluminum oxide ceramic coating with nano crystal structure and preparation method thereof |
| CN103194715A (en) * | 2012-01-05 | 2013-07-10 | 中国科学院微电子研究所 | Method for preparing amorphous Y3Al5O12 coating through atmospheric plasma spraying technology |
| CN105431926A (en) * | 2014-05-16 | 2016-03-23 | 应用材料公司 | Plasma spray coating design using phase and stress control |
-
2016
- 2016-02-18 CN CN201610091244.4A patent/CN105648386B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1083244A1 (en) * | 1999-09-08 | 2001-03-14 | Sulzer Metco AG | Alumina-based thick films obtained by plasma spraying |
| CN101215683A (en) * | 2007-12-28 | 2008-07-09 | 河海大学 | Method for increasing combination strength of plasma spraying ceramic coat and substrate |
| CN101280405A (en) * | 2008-04-30 | 2008-10-08 | 中国科学院上海硅酸盐研究所 | Lanthanum oxide-aluminum oxide composite coating prepared by plasma spraying method |
| CN102409280A (en) * | 2011-12-01 | 2012-04-11 | 安徽禹恒材料技术有限公司 | Aluminum oxide ceramic coating with nano crystal structure and preparation method thereof |
| CN103194715A (en) * | 2012-01-05 | 2013-07-10 | 中国科学院微电子研究所 | Method for preparing amorphous Y3Al5O12 coating through atmospheric plasma spraying technology |
| CN105431926A (en) * | 2014-05-16 | 2016-03-23 | 应用材料公司 | Plasma spray coating design using phase and stress control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105648386A (en) | 2016-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105648386B (en) | Thermal spraying aluminium oxide-yttrium oxide composite ceramic coat and preparation method thereof | |
| TWI405873B (en) | Method of preparing wear-resistant coating layer comprising metal matrix composite and coating layer prepared by using the same | |
| Mi et al. | Sliding wear behavior of HVOF sprayed WC-(nano-WC-Co) coating at elevated temperatures | |
| CN105603352B (en) | Al2O3/ YAG amorphous/eutectic composite ceramic coat and preparation method thereof | |
| CN110468367A (en) | Preparation method based on the IC of plasma spraying and cold spray technique equipment key components and parts surface protection coating | |
| Yin et al. | Tribological properties of plasma sprayed Al/Al2O3 composite coatings | |
| Singh et al. | Wear of plasma sprayed conventional and nanostructured Al 2 O 3 and Cr 2 O 3, based coatings | |
| Aghajani et al. | Phase composition, microstructure, mechanical properties, and wear performance of nanostructured Al2O3 and Al2O3-Y2O3 coatings deposited by plasma spraying | |
| CN109680241A (en) | It is tough, thermally conductive to stablize integrated amorphous oxides ceramic composite coating preparation method with high temperature micro-structure | |
| CN109207902A (en) | A kind of preparation method of ceramic base high-temperature abradable seal coating | |
| Xie et al. | Effect of environmental pressure on the microstructure of YSZ thermal barrier coating via suspension plasma spraying | |
| Jiang et al. | Effect of high-enthalpy atmospheric plasma spraying parameters on the mechanical and wear resistant properties of alumina ceramic coatings | |
| Zou et al. | Tribological property of plasma-sprayed Al2O3-13wt% TiO2 coatings onto resin-based composites | |
| CN108265259A (en) | It is a kind of for protective coating of TiAl alloy and preparation method thereof | |
| CN109518118A (en) | The method that internal powder conveying high energy plasma spraying prepares refractory metal heavy duty wear-resistant coating | |
| CN106756719A (en) | A kind of coupling coating with high-intensity high-tenacity and preparation method thereof | |
| CN109023315A (en) | The preparation method of titanium alloy surface high bond strength thermal barrier coating | |
| CN108531844A (en) | A kind of preparation method of the resistance to high temperature oxidation and wear-resistant coating of rare earth oxide doping for the protection of H13 steel surfaces | |
| CN108251784A (en) | Emulsification pump plunger sprays the method for composite coating and includes its plunger | |
| CN110923610A (en) | Preparation method of cobalt-based alloy composite powder and cladding coating for plasma spraying | |
| CN108401541B (en) | Aviation high speed light loading self-lubricating knuckle bearing abrasion-proof ceramic coat and preparation method | |
| Liu et al. | Study of toughening behavior of SiC whiskers on 8YSZ thermal barrier coatings | |
| Zamani et al. | Comparative investigation of microstructure and high-temperature oxidation resistance of high-velocity oxy-fuel sprayed CoNiCrAlY/nano-Al2O3 composite coatings using satellited powders | |
| WO2016058513A2 (en) | Plasma-sprayed tin coating having excellent hardness and toughness, the preparation method therefor, and a mold coated with said tin coating | |
| Morks et al. | The role of nozzle diameter on the microstructure and abrasion wear resistance of plasma sprayed Al2O3/TiO2 composite coatings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |