CN104962886A - Preparation method of thermal barrier coating with bonding layer doped by chemically-plated yttria stabilized zirconia (YSZ) fiber - Google Patents
Preparation method of thermal barrier coating with bonding layer doped by chemically-plated yttria stabilized zirconia (YSZ) fiber Download PDFInfo
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Abstract
The invention relates to a preparation method of a thermal barrier coating, in particular to a preparation method of a thermal barrier coating with bonding layer doped by chemically-plated yttria stabilized zirconia (YSZ) fiber. The preparation method resolves the technical problems that in the heat circulation work process of a traditional thermal barrier coating, as the heat matching performance of a bonding layer and a work layer is not good enough and thermally grown oxides continuously grow on a bonding layer/work layer interface and cause cracks, the coating fails; accordingly, YSZ fibers are doped in the bonding layer to improve the performance, but as the wettability of the original YSZ fibers and a metal base is poor, the fibers can not be well dispersed in the bonding layer if the fibers are directly doped. The preparation method includes the steps that firstly, chemically plated fibers are obtained through the six steps of fiber activation, dispergation, drying, chemical nickel plating, water washing and drying; secondly, composite bonding layer spraying materials are prepared; thirdly, the composite bonding layer spraying materials are sprayed on the surface of the pre-treated metal base, and then a YSZ work layer is sprayed, so that the thermal barrier coating with bonding layer doped by chemically-plated yttria stabilized zirconia (YSZ) fiber is obtained. The preparation method of the thermal barrier coating with bonding layer doped by chemically-plated yttria stabilized zirconia (YSZ) fiber is applied to the field of composite materials.
Description
Technical field
The present invention relates to a kind of preparation method of thermal barrier coating.
Background technology
Internal combustion turbine is widely used in the fields such as aviation, gas industry and energy industry, it is the most important equipment of national economy and national defense industry, and combustion engine blade is internal combustion turbine core, operationally subject high temperature, along with the inlet temperature of internal combustion turbine is towards high flow capacity ratio, thrust-weight ratio development, simple high-temperature alloy blades has been not enough to bear normal working temperature.At present, traditional terms of settlement is exactly on these blades, prepare the heat insulation thermal barrier coating of one deck, to prevent matrix from directly contacting with high-temperature fuel gas, reduces the heat that matrix bears, thus reaches the object of protection workpiece.
Traditional thermal barrier coating is made up of nickel base superalloy matrix, tack coat and top layer working lining.The most classical the most frequently used thermal barrier coating work system is the tack coat of NiCoCrAlY or NiAl as working lining and the transition of superalloy matrix of HVOF (High Velocity Oxygen Fuel), top layer is that the YSZ of plasma spraying is as heat-insulation working layer, due to the thermal expansivity of YSZ and the thermal expansivity of tack coat different, in gas turbine heat On The Cycle Working Process, usually because thermal stresses mismatch causes producing stress concentration at tack coat and working lining interface, cause coating failure, threaten the normal operation of working part.Therefore, optimize the composition of tack coat, improve their thermal expansion matching performance, the difference of thermal expansivity between reducing layer, improve the important directions that thermal shock performance of coatings is research at present.
Because YSZ fiber high temperature is functional, and the good YSZ fiber of interface cohesion can effectively be delivered in metal matrix matrix and, stop the expansion of crackle, in metal matrix, therefore add YSZ fiber can strengthen its anti-fatigue performance and fracture toughness property, high-temperature behavior.Because the wettability of most metal matrix to YSZ fiber is poor, directly add pristine fibre and cause fiber not disperse in tack coat metallic matrix well.Tack coat main component is Ni, therefore adopt the method for electroless plating to plate layer of Ni on YSZ fiber, to improve the wettability of YSZ fiber, reach fiber good distribution, to regulate the thermal stresses mismatch of tack coat, improving its anti-fatigue performance is one of effective method.
Summary of the invention
The present invention is for solving traditional thermal barrier in thermal cycling working process, because the thermal matching of tack coat and working lining can be good not, thermal growth oxide constantly grows to crack at tack coat/working lining interface and causes coating failure, propose the YSZ fiber that to adulterate in tack coat and improve its performance, but the wettability of original YSZ fiber and metal matrix is poor, direct doping can cause fiber can not in tack coat the technical problem of good distribution, because herein is provided a kind of preparation method of thermal barrier coating of YSZ fiber doping tack coat of electroless plating nickel.
The preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat of the present invention carries out according to the following steps:
One, take the tin protochloride of 60g ~ 80g, the mass concentration of 100mL ~ 300mL is the concentrated hydrochloric acid of 37% and the three hydrated stannic acid sodium of 5g ~ 15g, is mixed with activation solution A;
Two, take the Palladous chloride of 1g ~ 3g, tin protochloride that the mass concentration of 100mL ~ 300mL is the concentrated hydrochloric acid of 37%, the deionized water of 200mL and 1g ~ 5g, be mixed with activation solution B;
Three, activation solution A step one obtained to pour in the activation solution B that step 2 obtains and is diluted to 1L, then at temperature is 60 DEG C ~ 70 DEG C, is incubated 4h ~ 6h, obtains activation solution;
Four, be that the YSZ fiber of 50 μm ~ 100 μm adds in the activation solution that step 3 obtains and activates by length, activation temperature is 50 DEG C ~ 60 DEG C, and soak time is 0.5h ~ 1h, adopts the middling speed of temperature constant magnetic stirring machine to stir, and obtains the YSZ fiber after activating; The concentration of described YSZ fiber in activation solution is 80g/L ~ 140g/L;
Five, preparing mass concentration is the aqueous hydrochloric acid of 10%, obtain separating glue, then the YSZ fiber after activation step 4 obtained is put into and is separated glue dispergation, dispergation temperature is 15 DEG C ~ 30 DEG C, the dispergation time is 4min ~ 10min, adopt the middling speed of temperature constant magnetic stirring machine to stir, obtain the YSZ fiber after dispergation; YSZ fiber after described activation is 80g/L ~ 140g/L separating the concentration in glue;
Six, it is dry that loft drier put into by the YSZ fiber after dispergation step 5 obtained, and drying temperature is 60 DEG C ~ 80 DEG C, and time of drying is 16h ~ 24h, obtains dried YSZ fiber;
Seven, take the sodium hydroxide of EDTA, 40mL ~ lactic acid of 80mL, the hydrazine hydrate of 50mL ~ 100mL and 15g ~ 50g of the nickel acetate of 50g ~ 80g, 20g ~ 40g, be then settled to 1L with after deionized water dissolving, obtain chemical plating fluid;
Eight, the dried YSZ fiber obtained in step 6 is added in the chemical plating fluid that step 7 obtains and carry out chemical nickel plating, chemical nickel plating temperature is 50 DEG C ~ 90 DEG C, the chemical nickel plating time is 0.5h ~ 1h, adopts the middling speed of magnetic stirrer to stir, obtains the YSZ fiber after chemical nickel plating; The described concentration of dried YSZ fiber in chemical plating fluid is 10g/L ~ 50g/L;
Nine, the YSZ fiber after chemical nickel plating step 8 obtained washes 10min in ultrasonic washing instrument, and then put into loft drier dry, drying temperature is 60 DEG C ~ 80 DEG C, and time of drying is 8h ~ 16h, obtains the YSZ fiber of electroless plating;
Ten, be that the YSZ fiber of the electroless plating that the bonding layer material of 20 μm ~ 120 μm obtains with step 9 is in mass ratio for 10:1 mixes by particle diameter, then ethanol is added, be ball milling 2h under the condition of 1:1 in ratio of grinding media to material, then the composite granule after ball milling is put into loft drier, dry 2h ~ 5h at temperature is 80 DEG C ~ 110 DEG C, then by dried composite granule spray drying granulation, make its particle diameter be 20 μm ~ 120 μm, obtain composite tie layer spray material;
11, one deck SiO is sprayed after matrix metal being put into the ultrasonic oil removing of ethanol
2transition layer, obtains pretreated matrix metal;
12, adopt high speed flame spraying method to spray in the pretreated base metal surface that step 11 obtains the composite tie layer spray material that one deck step 10 obtains, obtain the tack coat that thickness is 30 μm ~ 80 μm;
13, adopt plasma spraying method to be the tack coat of 30 μm ~ 80 μm continues the YSZ working lining that spraying a layer thickness is 200 μm ~ 300 μm at the thickness that step 12 obtains, namely obtain the thermal barrier coating of electroless plating YSZ fiber doping tack coat.
The present invention includes following beneficial effect:
1, thermal barrier coating system of the present invention is with traditional without compared with fibre-reinforced thermal barrier coating system, and thermal shock resistance is stronger;
2, on YSZ fiber, one deck pure nickel is deposited by the method for electroless plating, to improve the wettability of fiber in tack coat;
3, thermal barrier coating preparation cost of the present invention is not high, and technique is simple, and repeatability is good.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph of thermal barrier coating thermal shock 230 rear surfaces prepared by test one;
Fig. 2 be controlled trial do not adulterate YSZ fiber thermal barrier coating thermal shock 170 times after scanning electron microscope (SEM) photograph.
Embodiment
Embodiment one: the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat of present embodiment carries out according to the following steps:
One, take the tin protochloride of 60g ~ 80g, the mass concentration of 100mL ~ 300mL is the concentrated hydrochloric acid of 37% and the three hydrated stannic acid sodium of 5g ~ 15g, is mixed with activation solution A;
Two, take the Palladous chloride of 1g ~ 3g, tin protochloride that the mass concentration of 100mL ~ 300mL is the concentrated hydrochloric acid of 37%, the deionized water of 200mL and 1g ~ 5g, be mixed with activation solution B;
Three, activation solution A step one obtained to pour in the activation solution B that step 2 obtains and is diluted to 1L, then at temperature is 60 DEG C ~ 70 DEG C, is incubated 4h ~ 6h, obtains activation solution;
Four, be that the YSZ fiber of 50 μm ~ 100 μm adds in the activation solution that step 3 obtains and activates by length, activation temperature is 50 DEG C ~ 60 DEG C, and soak time is 0.5h ~ 1h, adopts the middling speed of temperature constant magnetic stirring machine to stir, and obtains the YSZ fiber after activating; The concentration of described YSZ fiber in activation solution is 80g/L ~ 140g/L;
Five, preparing mass concentration is the aqueous hydrochloric acid of 10%, obtain separating glue, then the YSZ fiber after activation step 4 obtained is put into and is separated glue dispergation, dispergation temperature is 15 DEG C ~ 30 DEG C, the dispergation time is 4min ~ 10min, adopt the middling speed of temperature constant magnetic stirring machine to stir, obtain the YSZ fiber after dispergation; YSZ fiber after described activation is 80g/L ~ 140g/L separating the concentration in glue;
Six, it is dry that loft drier put into by the YSZ fiber after dispergation step 5 obtained, and drying temperature is 60 DEG C ~ 80 DEG C, and time of drying is 16h ~ 24h, obtains dried YSZ fiber;
Seven, take the sodium hydroxide of EDTA, 40mL ~ lactic acid of 80mL, the hydrazine hydrate of 50mL ~ 100mL and 15g ~ 50g of the nickel acetate of 50g ~ 80g, 20g ~ 40g, be then settled to 1L with after deionized water dissolving, obtain chemical plating fluid;
Eight, the dried YSZ fiber obtained in step 6 is added in the chemical plating fluid that step 7 obtains and carry out chemical nickel plating, chemical nickel plating temperature is 50 DEG C ~ 90 DEG C, the chemical nickel plating time is 0.5h ~ 1h, adopts the middling speed of magnetic stirrer to stir, obtains the YSZ fiber after chemical nickel plating; The described concentration of dried YSZ fiber in chemical plating fluid is 10g/L ~ 50g/L;
Nine, the YSZ fiber after chemical nickel plating step 8 obtained washes 10min in ultrasonic washing instrument, and then put into loft drier dry, drying temperature is 60 DEG C ~ 80 DEG C, and time of drying is 8h ~ 16h, obtains the YSZ fiber of electroless plating;
Ten, be that the YSZ fiber of the electroless plating that the bonding layer material of 20 μm ~ 120 μm obtains with step 9 is in mass ratio for 10:1 mixes by particle diameter, then ethanol is added, be ball milling 2h under the condition of 1:1 in ratio of grinding media to material, then the composite granule after ball milling is put into loft drier, dry 2h ~ 5h at temperature is 80 DEG C ~ 110 DEG C, then by dried composite granule spray drying granulation, make its particle diameter be 20 μm ~ 120 μm, obtain composite tie layer spray material;
11, one deck SiO is sprayed after matrix metal being put into the ultrasonic oil removing of ethanol
2transition layer, obtains pretreated matrix metal;
12, adopt high speed flame spraying method to spray in the pretreated base metal surface that step 11 obtains the composite tie layer spray material that one deck step 10 obtains, obtain the tack coat that thickness is 30 μm ~ 80 μm;
13, adopt plasma spraying method to be the tack coat of 30 μm ~ 80 μm continues the YSZ working lining that spraying a layer thickness is 200 μm ~ 300 μm at the thickness that step 12 obtains, namely obtain the thermal barrier coating of electroless plating YSZ fiber doping tack coat.
Present embodiment comprises following beneficial effect:
1, the thermal barrier coating system of present embodiment is with traditional without compared with fibre-reinforced thermal barrier coating system, and thermal shock resistance is stronger;
2, on YSZ fiber, one deck pure nickel is deposited by the method for electroless plating, to improve the wettability of fiber in tack coat;
3, the thermal barrier coating preparation cost of present embodiment is not high, and technique is simple, and repeatability is good.
Embodiment two: present embodiment and embodiment one unlike: at temperature is 65 DEG C, be incubated 5h in step 3.Other is identical with embodiment one.
Embodiment three: present embodiment and embodiment one or two unlike: in step 4, activation temperature is 55 DEG C, and soak time is 1h.Other is identical with embodiment one or two.
Embodiment four: one of present embodiment and embodiment one to three unlike: in step 5, dispergation temperature is 25 DEG C, and the dispergation time is 7min.Other is identical with one of embodiment one to three.
Embodiment five: one of present embodiment and embodiment one to four unlike: in step 6, drying temperature is 60 DEG C, and time of drying is 20h.Other is identical with one of embodiment one to four.
Embodiment six: one of present embodiment and embodiment one to five unlike: in step 8, chemical nickel plating temperature is 50 DEG C, and the chemical nickel plating time is 0.5h.Other is identical with one of embodiment one to five.
Embodiment seven: one of present embodiment and embodiment one to six unlike: in step 9, drying temperature is 60 DEG C, and time of drying is 12h.Other is identical with one of embodiment one to six.
Embodiment eight: one of present embodiment and embodiment one to seven unlike: in step 10 at temperature is 80 DEG C dry 5h.Other is identical with one of embodiment one to seven.
Embodiment nine: one of present embodiment and embodiment one to eight unlike: in step 10, bonding layer material is NiCoCrAlY or NiAl.Other is identical with one of embodiment one to eight.
Embodiment ten: one of present embodiment and embodiment one to nine unlike: in step 11, matrix metal is nickel base superalloy or nickel-base high-temperature single crystal alloy.Other is identical with one of embodiment one to nine.
Embodiment 11: one of present embodiment and embodiment one to ten unlike: the processing parameter of step 12 high speed flame spraying is: oxygen flow 90L/min, propane flow 36L/min, carrier gas flux 55L/min, oxygen pressure 0.95MPa, propane pressure 0.48MPa, nebulizer gas pressure 0.58MPa, spray distance 15cm.Other is identical with one of embodiment one to ten.
Embodiment 12: one of present embodiment and embodiment one to ten one unlike: in step 13, the processing parameter of plasma spraying method is: carrier gas flux 47.2L/min, Ar/He=20/13Lmin
-1, powder feeding rate 6.8g/min, spray distance 80mm, electric current 570A, voltage 55V, spraying rate 30mm/s.Other is identical with one of embodiment one to ten one.
By following verification experimental verification beneficial effect of the present invention:
Test one: the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat of this test realizes according to the following steps:
One, take the tin protochloride of 70g, the mass concentration of 155mL is the concentrated hydrochloric acid of 37% and the three hydrated stannic acid sodium of 8g, is mixed with activation solution A;
Two, take the Palladous chloride of 1g, tin protochloride that the mass concentration of 200L is the concentrated hydrochloric acid of 37%, the deionized water of 200mL and 5g, be mixed with activation solution B;
Three, activation solution A step one obtained to pour in the activation solution B that step 2 obtains and is diluted to 1L, then at temperature is 65 DEG C, is incubated 5h, obtains activation solution;
Four, be that the YSZ fiber of 80 μm ~ 100 μm adds in the activation solution that step 3 obtains and activates by length, activation temperature is 55 DEG C, and soak time is 1h, adopts the middling speed of temperature constant magnetic stirring machine to stir, and obtains the YSZ fiber after activating; The concentration of described YSZ fiber in activation solution is 140g/L;
Five, preparing mass concentration is the aqueous hydrochloric acid of 10%, obtain separating glue, then the YSZ fiber after activation step 4 obtained is put into and is separated glue dispergation, dispergation temperature is 25 DEG C, the dispergation time is 7min, adopt the middling speed of temperature constant magnetic stirring machine to stir, obtain the YSZ fiber after dispergation; YSZ fiber after described activation is 140g/L separating the concentration in glue;
Six, it is dry that loft drier put into by the YSZ fiber after dispergation step 5 obtained, and drying temperature is 60 DEG C, and time of drying is 20h, obtains dried YSZ fiber;
Seven, taking the sodium hydroxide of the nickel acetate of 80g, the lactic acid of EDTA, 80mL of 20g, the hydrazine hydrate of 100mL and 50g, then with being settled to 1L after deionized water dissolving, obtaining chemical plating fluid;
Eight, the dried YSZ fiber obtained in step 6 is added in the chemical plating fluid that step 7 obtains and carry out chemical nickel plating, chemical nickel plating temperature is 50 DEG C, the chemical nickel plating time is 0.5h, adopts the middling speed of magnetic stirrer to stir, obtains the YSZ fiber after chemical nickel plating; The described concentration of dried YSZ fiber in chemical plating fluid is 50g/L;
Nine, the YSZ fiber after chemical nickel plating step 8 obtained washes 10min in ultrasonic washing instrument, and then put into loft drier dry, drying temperature is 60 DEG C, and time of drying is 16h, obtains the YSZ fiber of electroless plating;
Ten, be that the YSZ fiber of the electroless plating that the NiAl of 80 μm ~ 120 μm obtains with step 9 is in mass ratio for 10:1 mixes by particle diameter, then ethanol is added, be ball milling 2h under the condition of 1:1 in ratio of grinding media to material, then the composite granule after ball milling is put into loft drier, dry 5h at temperature is 80 DEG C, then by dried composite granule spray drying granulation, make its particle diameter be 80 μm ~ 120 μm, obtain composite tie layer spray material;
11, one deck SiO will be sprayed after the ultrasonic oil removing of ethanol being put into In738LC matrix
2transition layer, obtains pretreated matrix metal;
12, adopt high speed flame spraying method to spray in the pretreated base metal surface that step 11 obtains the composite tie layer spray material that one deck step 10 obtains, obtain the tack coat that thickness is 60 μm; The processing parameter of described high speed flame spraying method is: oxygen flow 90L/min, propane flow 36L/min, carrier gas flux 55L/min, oxygen pressure 0.95MPa, propane pressure 0.48MPa, nebulizer gas pressure 0.58MPa, spray distance 15cm;
13, adopt plasma spraying method to be the tack coat of 60 μm continues the YSZ working lining that spraying a layer thickness is 200 μm at the thickness that step 12 obtains, namely obtain the thermal barrier coating of electroless plating YSZ fiber doping tack coat; The processing parameter of described plasma spraying method is: carrier gas flux 47.2L/min, Ar/He=20/13Lmin
-1, powder feeding rate 6.8g/min, spray distance 80mm, electric current 570A, voltage 55V, spraying rate 30mm/s.
The thermal expansivity of YSZ, YSZ fiber doping NiAl, In738LC is respectively L
1, L
4, L
3.Along with the increase of the volume fraction of fiber in NiAl, L
4continuous reduction, should make tack coat and working lining thermal expansivity Cha Zhi ∣ L with matrix meeting tack coat while good
1-L
4∣ is little as far as possible.
Adopt High Temperature Furnaces Heating Apparatus to carry out thermal shock test to preparation coating, the sample prepared is incubated 5min at 1050 DEG C, in water, after then taking out, cools 1 circulation that 1min is thermal shock test.The scanning electron microscope (SEM) photograph of thermal barrier coating thermal shock 230 rear surfaces of this test preparation as shown in Figure 1, as can be seen from Figure 1, after thermal shock 230 times, surface only has small part to peel off, illustrate that the tack coat bonding properties in thermal barrier coating system after the YSZ fiber obtaining being doped with chemically modified is excellent, thermal matching can be good, and thermal shock resistance is excellent.
Simultaneous test:
Nickel base superalloy adopt HVOF (High Velocity Oxygen Fuel) and plasma spray coating process thereof prepare the thermal barrier coating system of YSZ fiber doping NiAl.This coating system is divided into three parts from bottom to top:
Bottom: In738LC nickel base superalloy;
Transition layer: NiAl;
Working lining: YSZ.
(1) spray pre-treatment: pre-treatment is carried out to In738LC matrix surface, sandblasts after ultrasonic oil removing in ethanol, namely spray one deck SiO
2transition layer;
(2) tack coat is sprayed: adopt high speed flame spraying method to spray in pretreated base metal surface the NiAl tack coat that a layer thickness is 50 μm; Spray parameters: oxygen flow 90L/min, propane flow 36L/min, carrier gas flux 55L/min, oxygen pressure 0.95MPa, propane pressure 0.48MPa, nebulizer gas pressure 0.58MPa, spray distance 15cm;
(3) spray coating operations layer: adopt YSZ working lining plasma spraying tack coat after spray coating continuing spraying thick layer 200 μm; Spray parameters: carrier gas flux 47.2L/min, Ar/He=20/13Lmin
-1, powder feeding rate 6.8g/min, spray distance 80mm, electric current 570A, voltage 55V, spraying rate 30mm/s.
Controlled trial do not adulterate YSZ fiber thermal barrier coating thermal shock 170 times after scanning electron microscope (SEM) photograph as shown in Figure 2, as can be seen from Figure 2, after the thermal shock test carrying out 170 times, there occurs darker the peeling off of big area, illustrate that thermal barrier coating system performance is general owing to not having fiber to the modification of tack coat.
Contrasted from test one and comparative example, in tack coat, add fiber can promote its thermal shock resistance greatly.
Claims (10)
1. a preparation method for the thermal barrier coating of electroless plating YSZ fiber doping tack coat, is characterized in that a kind of preparation method of thermal barrier coating of electroless plating YSZ fiber doping tack coat carries out according to the following steps:
One, take the tin protochloride of 60g ~ 80g, the mass concentration of 100mL ~ 300mL is the concentrated hydrochloric acid of 37% and the three hydrated stannic acid sodium of 5g ~ 15g, is mixed with activation solution A;
Two, take the Palladous chloride of 1g ~ 3g, tin protochloride that the mass concentration of 100mL ~ 300mL is the concentrated hydrochloric acid of 37%, the deionized water of 200mL and 1g ~ 5g, be mixed with activation solution B;
Three, activation solution A step one obtained to pour in the activation solution B that step 2 obtains and is diluted to 1L, then at temperature is 60 DEG C ~ 70 DEG C, is incubated 4h ~ 6h, obtains activation solution;
Four, be that the YSZ fiber of 50 μm ~ 100 μm adds in the activation solution that step 3 obtains and activates by length, activation temperature is 50 DEG C ~ 60 DEG C, and soak time is 0.5h ~ 1h, adopts the middling speed of temperature constant magnetic stirring machine to stir, and obtains the YSZ fiber after activating; The concentration of described YSZ fiber in activation solution is 80g/L ~ 140g/L;
Five, preparing mass concentration is the aqueous hydrochloric acid of 10%, obtain separating glue, then the YSZ fiber after activation step 4 obtained is put into and is separated glue dispergation, dispergation temperature is 15 DEG C ~ 30 DEG C, the dispergation time is 4min ~ 10min, adopt the middling speed of temperature constant magnetic stirring machine to stir, obtain the YSZ fiber after dispergation; YSZ fiber after described activation is 80g/L ~ 140g/L separating the concentration in glue;
Six, it is dry that loft drier put into by the YSZ fiber after dispergation step 5 obtained, and drying temperature is 60 DEG C ~ 80 DEG C, and time of drying is 16h ~ 24h, obtains dried YSZ fiber;
Seven, take the sodium hydroxide of EDTA, 40mL ~ lactic acid of 80mL, the hydrazine hydrate of 50mL ~ 100mL and 15g ~ 50g of the nickel acetate of 50g ~ 80g, 20g ~ 40g, be then settled to 1L with after deionized water dissolving, obtain chemical plating fluid;
Eight, the dried YSZ fiber obtained in step 6 is added in the chemical plating fluid that step 7 obtains and carry out chemical nickel plating, chemical nickel plating temperature is 50 DEG C ~ 90 DEG C, the chemical nickel plating time is 0.5h ~ 1h, adopts the middling speed of magnetic stirrer to stir, obtains the YSZ fiber after chemical nickel plating; The described concentration of dried YSZ fiber in chemical plating fluid is 10g/L ~ 50g/L;
Nine, the YSZ fiber after chemical nickel plating step 8 obtained washes 10min in ultrasonic washing instrument, and then put into loft drier dry, drying temperature is 60 DEG C ~ 80 DEG C, and time of drying is 8h ~ 16h, obtains the YSZ fiber of electroless plating;
Ten, be that the YSZ fiber of the electroless plating that the bonding layer material of 20 μm ~ 120 μm obtains with step 9 is in mass ratio for 10:1 mixes by particle diameter, then ethanol is added, be ball milling 2h under the condition of 1:1 in ratio of grinding media to material, then the composite granule after ball milling is put into loft drier, dry 2h ~ 5h at temperature is 80 DEG C ~ 110 DEG C, then by dried composite granule spray drying granulation, make its particle diameter be 20 μm ~ 120 μm, obtain composite tie layer spray material;
11, one deck SiO is sprayed after matrix metal being put into the ultrasonic oil removing of ethanol
2transition layer, obtains pretreated matrix metal;
12, adopt high speed flame spraying method to spray in the pretreated base metal surface that step 11 obtains the composite tie layer spray material that one deck step 10 obtains, obtain the tack coat that thickness is 30 μm ~ 80 μm;
13, adopt plasma spraying method to be the tack coat of 30 μm ~ 80 μm continues the YSZ working lining that spraying a layer thickness is 200 μm ~ 300 μm at the thickness that step 12 obtains, namely obtain the thermal barrier coating of electroless plating YSZ fiber doping tack coat.
2. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, it is characterized in that in step 4, activation temperature is 55 DEG C, soak time is 1h.
3. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, it is characterized in that in step 5, dispergation temperature is 25 DEG C, the dispergation time is 7min.
4. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, it is characterized in that in step 6, drying temperature is 60 DEG C, time of drying is 20h.
5. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, it is characterized in that in step 8, chemical nickel plating temperature is 50 DEG C, the chemical nickel plating time is 0.5h.
6. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, it is characterized in that in step 9, drying temperature is 60 DEG C, time of drying is 12h.
7. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, is characterized in that in step 10, bonding layer material is NiCoCrAlY or NiAl.
8. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, is characterized in that in step 11, matrix metal is nickel base superalloy or nickel-base high-temperature single crystal alloy.
9. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, it is characterized in that the processing parameter of step 12 high speed flame spraying is: oxygen flow 90L/min, propane flow 36L/min, carrier gas flux 55L/min, oxygen pressure 0.95MPa, propane pressure 0.48MPa, nebulizer gas pressure 0.58MPa, spray distance 15cm.
10. the preparation method of the thermal barrier coating of a kind of electroless plating YSZ fiber doping tack coat according to claim 1, is characterized in that the processing parameter of plasma spraying method in step 13 is: carrier gas flux 47.2L/min, Ar/He=20/13Lmin
-1, powder feeding rate 6.8g/min, spray distance 80mm, electric current 570A, voltage 55V, spraying rate 30mm/s.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483597A (en) * | 2016-02-16 | 2016-04-13 | 哈尔滨工程大学 | Preparation method of thermal barrier coating of lanthanum zirconate fiber doped lanthanum zirconate |
| CN108468038A (en) * | 2018-03-13 | 2018-08-31 | 中国人民解放军陆军装甲兵学院 | A kind of plasma cladding composite material and preparation method |
| CN112481577A (en) * | 2020-11-18 | 2021-03-12 | 东北大学 | Thermal shock resistant thermal barrier coating material and preparation method thereof |
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| US20130177440A1 (en) * | 2012-01-11 | 2013-07-11 | General Electric Company | Continuous Fiber Reinforced Mesh Bond Coat for Environmental Barrier Coating System |
| CN104085153A (en) * | 2014-06-27 | 2014-10-08 | 哈尔滨工程大学 | Composite material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130177440A1 (en) * | 2012-01-11 | 2013-07-11 | General Electric Company | Continuous Fiber Reinforced Mesh Bond Coat for Environmental Barrier Coating System |
| CN104085153A (en) * | 2014-06-27 | 2014-10-08 | 哈尔滨工程大学 | Composite material and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483597A (en) * | 2016-02-16 | 2016-04-13 | 哈尔滨工程大学 | Preparation method of thermal barrier coating of lanthanum zirconate fiber doped lanthanum zirconate |
| CN108468038A (en) * | 2018-03-13 | 2018-08-31 | 中国人民解放军陆军装甲兵学院 | A kind of plasma cladding composite material and preparation method |
| CN112481577A (en) * | 2020-11-18 | 2021-03-12 | 东北大学 | Thermal shock resistant thermal barrier coating material and preparation method thereof |
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