CN107442384A - A kind of preparation method of nano mullite heatproof and shockproof ceramic coating - Google Patents
A kind of preparation method of nano mullite heatproof and shockproof ceramic coating Download PDFInfo
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- CN107442384A CN107442384A CN201710494899.0A CN201710494899A CN107442384A CN 107442384 A CN107442384 A CN 107442384A CN 201710494899 A CN201710494899 A CN 201710494899A CN 107442384 A CN107442384 A CN 107442384A
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- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 52
- 238000005524 ceramic coating Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000725 suspension Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 19
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005422 blasting Methods 0.000 claims abstract description 17
- 238000007598 dipping method Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000012153 distilled water Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011247 coating layer Substances 0.000 claims abstract description 10
- 238000002604 ultrasonography Methods 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims description 28
- 230000005291 magnetic effect Effects 0.000 claims description 18
- 238000013019 agitation Methods 0.000 claims description 15
- 230000035939 shock Effects 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 238000005488 sandblasting Methods 0.000 claims 1
- 239000006228 supernatant Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009514 concussion Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000005240 physical vapour deposition Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007750 plasma spraying Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910010037 TiAlN Inorganic materials 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920013657 polymer matrix composite Polymers 0.000 description 1
- 239000011160 polymer matrix composite Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
- B05D3/0236—Pretreatment, e.g. heating the substrate with ovens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/185—Mullite 3Al2O3-2SiO2
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62222—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic coatings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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- Compositions Of Oxide Ceramics (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention relates to technical field of functional ceramics, and in particular to a kind of preparation method of nano mullite heatproof and shockproof ceramic coating；Steel is selected including 1) matrix, coupons are put into the beaker of acetone, taken out after ultrasound, with Brown Alundum blasting treatment.2) nano mullite powder is scattered in distilled water, obtains suspending liquid A and supersonic generator concussion；3) add in Ludox and supersonic generator and shake into suspending liquid A；4) high-temperature electric resistance furnace is heated in advance, takes out the coupons after blasting treatment and be placed in electric furnace, the coupons of heating are immersed in suspension B, vibrated in supersonic generator；5) sample after ultrasound is continued to insert in high-temperature electric resistance furnace, the coupons of heating is immersed in suspension B, take out the sample after dipping, and vibrated in supersonic generator, repeat the step until reaching required coating layer thickness；Preparation method using a kind of nano mullite heatproof and shockproof ceramic coating of this programme has the advantages of technique is simple, cost is low and properties of product are excellent.
Description
Technical field
The invention belongs to technical field of functional ceramics, and in particular to a kind of preparation of nano mullite heatproof and shockproof ceramic coating
Method.
Background technology
Background technology：As manufacturing industry constantly develops, mechanically some parts because working environment is severe, for a long time by
Destroyed to high temperature, alternating temperature, friction, impact, corrosion etc., to its performance requirement more and more higher, wear-resisting, anti-corrosion, high temperature resistant etc., but only
Only rely on the processing of steel in itself to be difficult to reach requirement, therefore people start to transform its surface.
Ceramic coating is prepared in metal surface, can possess various properties, such as wear-resistant, corrosion resistant candle, high temperature resistant, resistance to
Tired, anti-good fortune is penetrated and the strengthened coat of the performance such as special light, electricity, thermal and magnetic, therefore, metal matrix ceramic composite coating technology conduct
One of important means of surface treatment technology of material, just increasingly it is valued by people.In order to more fully play metal
The advantages of ceramic composite coating, new green coating technology should be further developed, the kind of coating be enriched, to adapt to
The high speed development of new and high technology and the modernization of industry, lift the level of modern manufacturing industry.
Due to super-fine material (nano material, submicron order material etc.) have special skin effect, small-size effect and
Quantum effect, when a certain physical dimension of some phase in material reaches Ultra-fine Grained rank, it is special that this structure would indicate that
The performances such as thing, change, electricity, magnetic, heat and optics, have in intensity, copper, against corrosion, wearability, thermal boundary, thermal fatigue resistance etc. big
The incomparable superiority of crystal sizes material.And the coefficient of expansion of mullite is 4.4~5.5 × 10–6/ DEG C, fusing point 2000
DEG C, still very stable at 1800 DEG C, 1810 DEG C are decomposed into corundum and liquid phase.Mullite is as a kind of potential ceramic base, gold
Belong to base, the activeness and quietness material of polymer matrix composite, can be widely used for the fields such as high-temperature structural material, friction material.Tool
There are preferable high high-temp stability and high-temperature oxidation resistance.
Up to the present the preparation method of ceramic coating is varied, mainly has following several：Plasma spraying, colloidal sol coagulate
Glue method, physical vapour deposition (PVD), chemical vapor deposition etc..Plasma spraying waits arc θ to be up to 1000 during preparing ceramic coating
More than DEG C, so the interface of test button piece and coating can have very high residual thermal stress during cooling, and because interface lacks
It is main at interface, stabilization and coating and the coupons interface for being unfavorable for coating that sunken concentration make it that the destruction of material generally occurs
It is mechanical snap, bond strength is also accordingly restricted.Physical property is poor between plasma spraying coating and test button piece in addition
It is not larger, larger internal stress can be produced in interface, so as to reduce bond strength [the Zhao X, Liu of coating and coupons
X,Ding C,et al.In vitro bioactivity of plasma-sprayed TiO2,coating after
sodium hydroxide treatment[J].Surface&Coating Technology.2006,200(18-19):
5487-5492.], using sol-gal process prepare coating surface easily cracking and coating layer thickness deficiency [Adraider Y,
Pang Y X,Nabhani F,et al.Fabrication of zirconium oxide coatings on stainless
steel by a combined laser/sol-gel technique[J].Interceram International
Ceramic Review,2013,39(8):9665-9670.], using physical vapour deposition (PVD) and chemical vapor deposition, complex process
Need to carry out under vacuum conditions and easily cause micro-and nano-particles to be grown up during coating is constructed, the phenomenon of agglomerate
[Rujisomnapa J,Surinphong S,Wongpanya P.A Comparative Study of Wear and
Oxidation Behaviors of End Mill Coated by PVD Coatings[J].Advanced Materials
Research,2013,785-786:858.], [Miao Jianwang, Wang Chao, Zhou Chungen chemical vapor depositions TiAlN thin film and its wearability
Energy [J] aviation journals, 2008,29 (6)：1687-1691.].
The content of the invention
The purpose of invention is to provide a kind of preparation method of nano mullite ceramic coating using ultrasound-hot submersion method,
The shortcomings that having solved in the prior art, the protection for metal parts in manufacturing industry have great importance, present invention process letter
List, cost are low, and properties of product are excellent.
A kind of preparation method of nano mullite heatproof and shockproof ceramic coating in this programme, comprises the following steps：1) matrix
Material selection steel, required sized samples piece is processed into, coupons are put into the beaker for being pre-loaded with acetone, after ultrasonic 30min
Take out, after drying coupons, blasting treatment is carried out with the Brown Alundum of 24 mesh.2) nano mullite powder be scattered in 200ml~
In 400ml distilled water, suspending liquid A is obtained, by suspending liquid A supersonic generator 20~40min of ultrasonic vibration, then magnetic force
3~5h is stirred, the concentration of nano mullite powder is 100~200g/L in suspending liquid A.3) into suspending liquid A add 40ml~
80ml Ludox, suspension B is obtained, suspension B is put into 30~60min of ultrasonic vibration in supersonic generator, Ran Houbian
Side 3~5h of magnetic agitation is heated, heating-up temperature is 50~60 DEG C；4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and kept
200 DEG C of temperature, take out the coupons after blasting treatment and be placed in 200 DEG C of electric furnace, take out, will add after being incubated 15~20min
The coupons of heat are immersed in suspension B, take out the coupons after dipping after 20~30s, and in supersonic generator vibration 1~
2min；5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 15~20min, by heating
Coupons are immersed in suspension B, take out the coupons after dipping after 20~30s, and in supersonic generator vibration 1~
2min, the step is repeated until reaching required coating layer thickness, that is, obtains anti-thermal shock Mullite Coatings sample.
It is an advantage of the invention that：1) anti-thermal shock Mullite Coatings surface flawless prepared by the present invention, with coupons
Bond strength it is big；2) present invention can obtain that structural thickness is controllable and anti-thermal shock mullite ceramic of good performance at low temperature
Coating；3) preparation technology of the present invention is simple, easy to operate, and raw material is easy to get, and it is relatively low to prepare cost.
The mullite coating for preparing of the present invention is made up of single mullite crystalline phase as seen from Figure 1, can be with reference to Fig. 2
Find out that prepared coating surface consistency is preferable, (figure a shows back scattering collection of illustrative plates for prepares coating, schemes b without obvious micro-crack
To scheme the back scattering collection of illustrative plates under a high magnification), prepared coating is at 1200 DEG C after thermal shock 50 times as seen from Figure 3, matter
Amount loss rate is 1% or so, and the thermal shock resistance of coating is preferable.
Further, purity >=99.9% of the nano mullite powder, average grain diameter are 50~70nm.
Further, in the Ludox, SiO2Solid content be 30%~31%.
Further, step 1)~5) in the power of supersonic generator be 800-1200W.
Further, in step 2), distilled water 300ml.
Further, in step 3), Ludox is 50ml~70ml in addition.
Further, in step 3), Ludox is 60ml in addition.
Further, in step 1), the size of coupons is 30mm × 30mm × 5mm.
Further, in step 1), matrix material selects No. 45 steel.
Brief description of the drawings
Fig. 1 is the XRD that the embodiment of the present invention 1 prepares mullite external coating surface；
Fig. 2 is the surface back scattering collection of illustrative plates of mullite coating prepared by the embodiment of the present invention 1；
Fig. 3 be the embodiment of the present invention 1 prepare mullite coating at 1200 DEG C thermal shock resistance figure.
Embodiment
Embodiment 1
1) matrix material selects No. 45 steel, is processed into the coupons that size is 30mm × 30mm × 5mm, coupons are put into
It is pre-loaded with the beaker of 300mL acetone, and is taken out in 800W supersonic generators after ultrasonic 30min, after drying coupons,
Blasting treatment is carried out with the Brown Alundum of 24 mesh.
2) take commercially available nano mullite powder 20g to be scattered in 200ml distilled water, obtain suspending liquid A, by suspension
A 800W supersonic generator ultrasonic vibration 20min, then magnetic agitation 3h, the concentration of nano mullite powder in suspending liquid A
For 100g/L.
3) 40ml Ludox is added into suspending liquid A, suspension B is obtained, suspension B is put into 800W supersonic generators
Middle ultrasonic vibration 30min, then the magnetic agitation 3h in heating, heating-up temperature are 50 DEG C；
4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, take out the sample after blasting treatment
Piece is placed in 200 DEG C of electric furnace, is taken out after being incubated 15min, and the coupons of heating are immersed in suspension B, and dipping is taken out after 20s
Sample afterwards, and vibrate 1min in 800W supersonic generators；
5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 15min, by heating
Coupons are immersed in suspension B, and the coupons after dipping are taken out after 20s, and vibrate 1min in 800W supersonic generators, weight
Multiple the step obtains nano mullite coating sample up to reaching required coating layer thickness.
Embodiment 2
1) matrix material selects No. 45 steel, is processed into the coupons that size is 30mm × 30mm × 5mm, coupons are put into
It is pre-loaded with the beaker of 300mL acetone, and is taken out in 900W supersonic generators after ultrasonic 30min, after drying coupons,
Blasting treatment is carried out with the Brown Alundum of 24 mesh.
2) take commercially available nano mullite powder 37.5g to be scattered in 250ml distilled water, obtain suspending liquid A, will suspend
Liquid A 900W supersonic generator ultrasonic vibration 25min, then magnetic agitation 2.5h, nano mullite powder in suspending liquid A
Concentration is 150g/L.
3) 50ml Ludox is added into suspending liquid A, suspension B is obtained, suspension B is put into 900W supersonic generators
Middle ultrasonic vibration 35min, then the magnetic agitation 3.5h in heating, heating-up temperature are 55 DEG C；
4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, take out the sample after blasting treatment
Piece is placed in 200 DEG C of electric furnace, is taken out after being incubated 16min, and the coupons of heating are immersed in suspension B, and dipping is taken out after 25s
Sample afterwards, and vibrate 1min in 900W supersonic generators；
5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 16min, by heating
Coupons are immersed in suspension B, and the coupons after dipping are taken out after 25s, and vibrate 1min in 900W supersonic generators, weight
Multiple the step obtains nano mullite ceramic coating sample up to reaching required coating layer thickness.
Embodiment 3
1) matrix material selects No. 45 steel, is processed into the coupons that size is 30mm × 30mm × 5mm, coupons are put into
It is pre-loaded with the beaker of 300mL acetone, and is taken out in 1000W supersonic generators after ultrasonic 30min, dries coupons
Afterwards, blasting treatment is carried out with the Brown Alundum of 24 mesh.
2) take commercially available nano mullite powder 60g to be scattered in 300ml distilled water, obtain suspending liquid A, by suspension
A 1000W supersonic generator ultrasonic vibration 30min, then magnetic agitation 3h, nano mullite powder is dense in suspending liquid A
Spend for 200g/L.
3) 60ml Ludox is added into suspending liquid A, obtains suspension B, suspension B is put into 1000W ultrasonic waves occurs
Ultrasonic vibration 40min in device, then the magnetic agitation 4h in heating, heating-up temperature are 55 DEG C；
4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, take out the sample after blasting treatment
Piece is placed in 200 DEG C of electric furnace, is taken out after being incubated 17min, and the coupons of heating are immersed in suspension B, and dipping is taken out after 30s
Sample afterwards, and vibrate 1min in 1000W supersonic generators；
5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 17min, by heating
Coupons are immersed in suspension B, and the coupons after dipping are taken out after 30s, and vibrate 1min in 1000W supersonic generators,
The step is repeated until reaching required coating layer thickness, that is, obtains nano mullite ceramic coating sample.
Embodiment 4
1) matrix material selects No. 45 steel, is processed into the coupons that size is 30mm × 30mm × 5mm, coupons are put into
It is pre-loaded with the beaker of 300mL acetone, and is taken out in 1100W supersonic generators after ultrasonic 30min, dries coupons
Afterwards, blasting treatment is carried out with the Brown Alundum of 24 mesh.
2) take commercially available nano mullite powder 70g to be scattered in 350ml distilled water, obtain suspending liquid A, by suspension
A 1100W supersonic generator ultrasonic vibration 35min, then magnetic agitation 4.5h, nano mullite powder in suspending liquid A
Concentration is 200g/L.
3) 70ml Ludox is added into suspending liquid A, obtains suspension B, suspension B is put into 1100W ultrasonic waves occurs
Ultrasonic vibration 50min in device, then the magnetic agitation 4h in heating, heating-up temperature are 55 DEG C；
4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, take out the sample after blasting treatment
Piece is placed in 200 DEG C of electric furnace, is taken out after being incubated 18min, and the coupons of heating are immersed in suspension B, and dipping is taken out after 30s
Sample afterwards, and vibrate 1min in 1100W supersonic generators；
5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 18min, by heating
Coupons are immersed in suspension B, and the coupons after dipping are taken out after 30s, and vibrate 2min in 1100W supersonic generators,
The step is repeated until reaching required coating layer thickness, that is, obtains nano mullite ceramic coating sample.
Embodiment 5
1) matrix material selects No. 45 steel, is processed into the coupons that size is 30mm × 30mm × 5mm, coupons are put into
It is pre-loaded with the beaker of 300mL acetone, and is taken out in 1200W supersonic generators after ultrasonic 30min, dries coupons
Afterwards, blasting treatment is carried out with the Brown Alundum of 24 mesh.
2) take commercially available nano mullite powder 80g to be scattered in 400ml distilled water, obtain suspending liquid A, by suspension
A 1200W supersonic generator ultrasonic vibration 35min, then magnetic agitation 4.5h, nano mullite powder in suspending liquid A
Concentration is 200g/L.
3) 80ml Ludox is added into suspending liquid A, obtains suspension B, suspension B is put into 1200W ultrasonic waves occurs
Ultrasonic vibration 50min in device, then the magnetic agitation 4h in heating, heating-up temperature are 55 DEG C；
4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, take out the sample after blasting treatment
Piece is placed in 200 DEG C of electric furnace, is taken out after being incubated 20min, and the coupons of heating are immersed in suspension B, and dipping is taken out after 30s
Sample afterwards, and vibrate 1min in 1200W supersonic generators；
5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 20min, by heating
Coupons are immersed in suspension B, and the coupons after dipping are taken out after 30s, and vibrate 2min in 1200W supersonic generators,
The step is repeated until reaching required coating layer thickness, that is, obtains nano mullite ceramic coating sample.
Embodiment 6
1) matrix material selects No. 45 steel, is processed into the coupons that size is 30mm × 30mm × 5mm, coupons are put into
It is pre-loaded with the beaker of 300mL acetone, and is taken out in 1000W supersonic generators after ultrasonic 30min, dries coupons
Afterwards, blasting treatment is carried out with the Brown Alundum of 24 mesh.
2) take commercially available nano mullite powder 60g to be scattered in 400ml distilled water, obtain suspending liquid A, by suspension
A 1200W supersonic generator ultrasonic vibration 35min, then magnetic agitation 5h, nano mullite powder is dense in suspending liquid A
Spend for 150g/L.
3) 80ml Ludox is added into suspending liquid A, obtains suspension B, suspension B is put into 1000W ultrasonic waves occurs
Ultrasonic vibration 60min in device, then the magnetic agitation 5h in heating, heating-up temperature are 60 DEG C；
4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, take out the sample after blasting treatment
Piece is placed in 200 DEG C of electric furnace, is taken out after being incubated 20min, and the coupons of heating are immersed in suspension B, and dipping is taken out after 30s
Sample afterwards, and vibrate 2min in 1000W supersonic generators；
5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 20min, by heating
Coupons are immersed in suspension B, and the coupons after dipping are taken out after 30s, and vibrate 2min in 1000W supersonic generators,
The step is repeated until reaching required coating layer thickness, that is, obtains nano mullite ceramic coating sample.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.
Claims (9)
- A kind of 1. preparation method of nano mullite heatproof and shockproof ceramic coating, it is characterised in that：Comprise the following steps1) matrix material selects steel, is processed into required sized samples piece, coupons are put into the beaker for being pre-loaded with 300ml acetone In, take out after ultrasonic 30min, after drying coupons, carried out with the Brown Alundum of 24 mesh at sandblasting；2) 20g-80g nano mullite powder is scattered in 200ml~400ml distilled water, obtains suspending liquid A, will be outstanding Supernatant liquid A supersonic generator 20~40min of ultrasonic vibration, then 3~5h of magnetic agitation, nano mullite powder in suspending liquid A The concentration of body is 100~200g/L；3) 40ml~80ml Ludox is added into suspending liquid A, suspension B is obtained, suspension B is put into supersonic generator Middle 30~60min of ultrasonic vibration, then 3~5h of magnetic agitation in heating, heating-up temperature are 50~60 DEG C；4) high-temperature electric resistance furnace is previously heated to 200 DEG C, and keeps 200 DEG C of temperature, taken out the coupons after blasting treatment and put In in 200 DEG C of electric furnace, taken out after being incubated 15~20min, the coupons of heating are immersed in suspension B, taken out after 20~30s Coupons after dipping, and 1~2min is vibrated in supersonic generator；5) coupons after ultrasound are continued to insert in 200 DEG C of high-temperature electric resistance furnace, taken out after being incubated 15~20min, by heating Coupons are immersed in suspension B, take out the coupons after dipping after 20~30s, and in supersonic generator vibration 1~ 2min, the step is repeated until reaching required coating layer thickness, that is, obtains anti-thermal shock Mullite Coatings sample.
- A kind of 2. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Institute Purity >=99.9% of nano mullite powder is stated, average grain diameter is 50~70nm.
- A kind of 3. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Institute State in Ludox, SiO2Solid content be 30%~31%.
- A kind of 4. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Institute State step 1)~5) in the power of supersonic generator be 800-1200W.
- A kind of 5. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Step It is rapid 2) in, distilled water 300ml.
- A kind of 6. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Step It is rapid 3) in, Ludox is 50ml~70ml in addition.
- A kind of 7. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 6, it is characterised in that：Step It is rapid 3) in, Ludox is 60ml in addition.
- A kind of 8. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Step It is rapid 1) in, the size of coupons is 30mm × 30mm × 5mm.
- A kind of 9. preparation method of nano mullite heatproof and shockproof ceramic coating according to claim 1, it is characterised in that：Step It is rapid 1) in, matrix material selects No. 45 steel.
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