CN117229054A - Sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and preparation method thereof - Google Patents
Sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and preparation method thereof Download PDFInfo
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- CN117229054A CN117229054A CN202310967859.9A CN202310967859A CN117229054A CN 117229054 A CN117229054 A CN 117229054A CN 202310967859 A CN202310967859 A CN 202310967859A CN 117229054 A CN117229054 A CN 117229054A
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- 238000005245 sintering Methods 0.000 title claims abstract description 94
- 239000000843 powder Substances 0.000 title claims abstract description 87
- 239000000463 material Substances 0.000 title claims abstract description 78
- 239000012720 thermal barrier coating Substances 0.000 title claims abstract description 71
- 238000005240 physical vapour deposition Methods 0.000 title claims abstract description 56
- 238000007750 plasma spraying Methods 0.000 title claims abstract description 55
- 239000000919 ceramic Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 20
- 238000005469 granulation Methods 0.000 claims abstract description 12
- 230000003179 granulation Effects 0.000 claims abstract description 12
- 230000002776 aggregation Effects 0.000 claims abstract description 8
- 238000005054 agglomeration Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 20
- 238000003746 solid phase reaction Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 9
- 238000000498 ball milling Methods 0.000 claims description 8
- 239000011812 mixed powder Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 4
- 229910017493 Nd 2 O 3 Inorganic materials 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 238000001694 spray drying Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003801 milling Methods 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 17
- 238000009826 distribution Methods 0.000 abstract description 15
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 5
- 229910001404 rare earth metal oxide Inorganic materials 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000007790 solid phase Substances 0.000 abstract description 2
- -1 has high sphericity Substances 0.000 abstract 1
- 238000011156 evaluation Methods 0.000 description 18
- 229910001233 yttria-stabilized zirconia Inorganic materials 0.000 description 17
- 229910010293 ceramic material Inorganic materials 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 239000012071 phase Substances 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000011268 mixed slurry Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Abstract
The invention discloses an anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and a preparation method thereof. The powder material is formed by the agglomeration of submicron/micron rare earth oxide original powder, has high sphericity, particle size distribution concentrated in the range of 5-50 mu m, low grain growth rate under the condition of ultra-high temperature of 1500 ℃, and anti-sintering coefficient R s >0.5, from Y, la, nd, sm, eu five kindsThe rare earth elements are composed in an equimolar ratio, and the uniform element distribution is shown on the two dimensions of micron and nanometer. The preparation method comprises two steps of solid-phase sintering and spray granulation. The powder material has the advantages of being suitable for plasma spraying physical vapor deposition, having better anti-sintering performance under the condition of ultra-high temperature of 1500 ℃, having simple preparation process and being beneficial to batch preparation and engineering application of the anti-sintering high-entropy ceramic thermal barrier coating powder material for the plasma spraying physical vapor deposition.
Description
Technical Field
The invention relates to the technical field of thermal barrier coating ceramic powder materials, in particular to an anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition and a preparation method thereof.
Background
The traditional thermal barrier coating ceramic material Yttria Stabilized Zirconia (YSZ) can generate sintering and phase change phenomena in the long-term service process under the temperature exceeding condition, the sintering and phase change phenomena can cause rapid degradation of coating force and thermal property, the thermal property can cause about 5 percent volume expansion, and under the combined action of the sintering and phase change phenomena, the internal stress level of the thermal barrier coating is increased, and buckling and fracture failure easily occur.
Plasma spraying physical vapor deposition (PS-PVD) is a novel plasma spraying thermal barrier coating preparation technology developed on the basis of low pressure plasma spraying (LPPS/VPS) technology. By improving the vacuum degree of the spraying cabin and the power of the spray gun, the length of the plasma flame flow is obviously increased, so that the ceramic powder material of the thermal barrier coating can be fully melted and gasified, and solid-liquid-gas multiphase deposition can be carried out, thereby forming a unique feather type columnar structure. The prior research results show that the columnar structure is beneficial to improving the sintering resistance of the thermal barrier coating. From the structural design point of view, the feather-type columnar structure is prepared by a plasma spraying physical vapor deposition technology, and the feather-type columnar structure is an effective way for improving the sintering resistance of the thermal barrier coating. However, plasma spray physical vapor deposition processes have special requirements for ceramic powder materials. Firstly, the particle size of the powder material cannot be too small, and the spray gun is easily blocked due to the too small particle size of the powder; secondly, the particle size of the powder material cannot be too large, and the powder cannot be melted insufficiently, is difficult to gasify and cannot realize vapor deposition, so that a feather type columnar structure cannot be formed; again, the powder material morphology requires higher sphericity, and irregular morphology of multiple edges and corners can lead to poor flowability and is unfavorable for powder feeding.
The concept of high-entropy ceramics originates from high-entropy alloys and is a single-phase multicomponent solid solution material composed of five or more multicomponent metal cations in (near) amounts of the like. Since 2015, high entropy ceramic materials have been developed rapidly, and a number of systems have been formed, such as high entropy carbides, nitrides, oxides, borides, silicides, sulfides, and the like. The high-entropy rare earth zirconate has good high-temperature phase stability, a thermal expansion coefficient similar to that of a high-temperature alloy substrate and ultralow heat conductivity, and is a thermal barrier coating ceramic material with great potential. However, the existing preparation method of the high-entropy rare earth zirconate ceramic material of the thermal barrier coating mainly adopts a solid-phase sintering-crushing-briquetting process (CN 110272278A), and the powder morphology and particle size distribution are not suitable for plasma spraying physical vapor deposition. The research of the current high-entropy ceramic material only focuses on the high-temperature phase stability (CN 114920559A, CN114230339A, CN114149260A, CN113816751A, CN 113023776A) and the molten salt corrosion resistance (CN 112341197A) and lacks quantitative characterization and evaluation on the sintering resistance, so that the development of the sintering resistance high-entropy ceramic material of the thermal barrier coating is difficult, the basis cannot be provided for the prediction of the structure and the performance degradation behavior of the thermal barrier coating in the ultra-high temperature service process, and the long-term ultra-high temperature application of the high-entropy ceramic thermal barrier coating is not facilitated. Under the condition of ultra-high temperature of 1500 ℃, the only widely applied thermal barrier coating ceramic material Yttria Stabilized Zirconia (YSZ) at present has serious sintering and phase transition problems, the force and thermal properties rapidly deteriorate along with the increase of sintering time, and the sintering resistance is insufficient and cannot be applied to ultra-high temperature thermal barrier coatings.
Disclosure of Invention
The invention aims to solve the technical problems of providing an anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition, which is used for solving the problems that the existing high-entropy ceramic material is not suitable for preparing a thermal barrier coating by plasma spraying physical vapor deposition and the only widely applied thermal barrier coating ceramic material has insufficient anti-sintering performance of Yttria Stabilized Zirconia (YSZ).
The technical scheme adopted by the invention for solving the technical problems is as follows:
a sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition is characterized in that the chemical formula of the powder material is (Y 0.2 La 0.2 Nd 0.2 Sm 0.2 Eu 0.2 ) 2 Zr 2 O 7 Has spherical morphology and particle size of 5-50 μm.
Preferably, after the powder material is sintered for 200 hours at 1500 ℃, the sintering resistance coefficient R s >0.5。
The invention also provides a preparation method of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition, which comprises the following steps:
y is set to 2 O 3 、La 2 O 3 、Nd 2 O 3 、Sm 2 O 3 、Eu 2 O 3 ZrO (ZrO) 2 Mixing the powder according to the molar ratio of 1:1:1:1:5, grinding, drying, and performing solid phase reaction at 1600+/-50 ℃ to obtain mixed powder; crushing, grinding and sieving the mixed powder, and performing spray drying agglomeration granulation to obtain the sintering-resistant high-entropy ceramic thermal barrier coating powder material.
Preferably, the time of the solid phase reaction is 2.+ -. 1h.
Preferably, the spray drying conditions are a feed temperature of 240.+ -. 10 ℃, a rotational speed of 35.+ -. 5rpm, a pressure of 2.0.+ -. 0.5bar.
Preferably, the grinding conditions are: anhydrous ethanol is used as medium, zrO 2 The balls are ball-milling balls, and ball-milling and mixing are carried out for 10+/-2 hours at the rotating speed of 300+/-50 rpm;
the drying condition is that the drying is carried out for 20+/-2 hours at 70+/-10 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the anti-sintering high-entropy ceramic thermal barrier coating powder material (YLNSE) for plasma spraying physical vapor deposition has good anti-sintering performance at the ultra-high temperature condition of 1500 ℃, the morphology and the particle size distribution of the powder material are suitable for a plasma spraying physical vapor deposition process, the application of the feather-type columnar structure anti-sintering high-entropy ceramic thermal barrier coating is facilitated, and the anti-sintering performance of the thermal barrier coating is cooperatively improved from two layers of the material and the structure; the preparation process of the powder material is simple, and is favorable for batch preparation and engineering application of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a graph showing the distribution of submicron-sized elements of a powder material (YLNSE) of an anti-sintering high-entropy ceramic thermal barrier coating for plasma spray physical vapor deposition after solid phase reaction.
FIG. 2 is a photograph of microscopic morphology of a sintering-resistant high-entropy ceramic thermal barrier coating powder material (YLNSE) for plasma spraying physical vapor deposition after solid phase reaction and spray granulation.
FIG. 3 is a graph showing the distribution of micron-sized elements of a powder material (YLNSE) of an anti-sintering high-entropy ceramic thermal barrier coating for plasma spraying physical vapor deposition, which is subjected to solid phase reaction, spray granulation and briquetting.
FIG. 4 is a graph showing the variation of grain size with sintering time in an experiment of sintering resistance at an ultra-high temperature of 1500 ℃ of yttrium oxide stabilized zirconia (YSZ) which is the only widely used thermal barrier coating ceramic material at present and is the sintering resistance high entropy ceramic thermal barrier coating powder material (YLNSE) for plasma spraying physical vapor deposition.
FIG. 5 shows the dimensionless sintering resistance evaluation parameter R of the sintering resistance experiment of the sintering resistance of the plasma spraying Physical Vapor Deposition (PVD) used anti-sintering high entropy ceramic thermal barrier coating powder material (YLNSE) and the only widely applied thermal barrier coating ceramic material (YSZ) at 1500 DEG C s And (5) a value change law chart along with sintering time.
Detailed Description
The invention is further described below with reference to the drawings and detailed description. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
Y is set to 2 O 3 (99.99％,0.2μm)、La 2 O 3 (99.99％,5μm)、Nd 2 O 3 (99.99％,5μm)、Sm 2 O 3 (99.9％,5μm)、Eu 2 O 3 (99.999%, 5 μm) five rare earth oxides and ZrO 2 (99.99 percent, 0.2 mu m) raw powder is weighed according to the molar ratio of 1:1:1:1:1:5; anhydrous ethanol is used as medium, zrO 2 Ball milling and mixing the ball with a planetary ball mill at a rotating speed of 300rpm for 10 hours to obtain mixed slurry; placing the slurry into a blast drying box, and drying for 20 hours at 70 ℃ until the slurry is completely dried; placing the dried mixed powder into a high-temperature box type furnace, and performing solid-phase reaction at 1600 ℃ for 2 hours; grinding, crushing and ball milling for 10 hours, and then agglomerating and granulating in a spray dryer, wherein the feeding temperature is 240 ℃, the rotating speed is 35rpm, and the pressure is 2.0bar; obtaining particle size distribution of a powder material through a laser particle analyzer, obtaining sub-micron-scale element distribution of the powder material after solid phase reaction through a transmission electron microscope energy spectrometer, obtaining morphology of the powder material after spray granulation through a scanning electron microscope, briquetting the powder material, obtaining micron-scale element distribution through the scanning electron microscope energy spectrometer, and obtaining average particles through statistics by combining an image methodThe diameter is respectively obtained by nano indentation and a laser flash method to obtain elastic modulus and thermal conductivity, and a dimensionless sintering resistance evaluation parameter R for comprehensively considering the degree of degradation of the force and the thermal performance is calculated according to an Lv et al, J.Eur.Ceram.Soc.,38 (2018) 1946-1956 formula (15) s Values.
Analysis results of a laser particle analyzer show that the sintering-resistant high-entropy ceramic thermal barrier coating powder material D for plasma spraying physical vapor deposition in the embodiment 10 ＝5.72μm，D 90 =48.0 μm, exhibiting an approximately normal distribution, with a particle size distribution concentrated in the range of 5-50 μm.
As shown in figure 1, the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition after solid phase reaction has a submicron structure, and the analysis result of a transmission electron microscope energy spectrum shows that the powder material has uniform distribution of rare earth elements on a submicron scale and no segregation or aggregation.
As shown in figure 2, the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition after spray granulation is formed into a spherical morphology by the agglomeration of submicron/micron-sized rare earth oxide original powder, and has high sphericity. The higher sphericity and proper particle size indicate that the powder is suitable for plasma spraying physical vapor deposition process.
As shown in figure 3, the analysis result of a scanning electron microscope shows that after the powder material of the anti-sintering high-entropy ceramic thermal barrier coating for plasma spraying physical vapor deposition of spray granulation agglomeration is pressed into blocks, the rare earth elements are uniformly distributed on the micrometer scale, and segregation or aggregation does not occur.
As shown in FIG. 4, the average grain size of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for the prepared plasma spraying physical vapor deposition is smaller and is only 0.89 mu m.
As shown in FIG. 5, the dimensionless sintering resistance evaluation parameter R of the sintering resistance high entropy ceramic thermal barrier coating powder material for the preparation state plasma spraying physical vapor deposition s The value was 1.0.
Example 2
Y is set to 2 O 3 (99.99％,0.2μm)、La 2 O 3 (99.99％,5μm)、Nd 2 O 3 (99.99％,5μm)、Sm 2 O 3 (99.9％,5μm)、Eu 2 O 3 (99.999%, 5 μm) five rare earth oxides and ZrO 2 (99.99 percent, 0.2 mu m) raw powder is weighed according to the molar ratio of 1:1:1:1:1:5; anhydrous ethanol is used as medium, zrO 2 Ball milling and mixing the ball with a planetary ball mill at a rotating speed of 300rpm for 10 hours to obtain mixed slurry; placing the slurry into a blast drying box, and drying for 20 hours at 70 ℃ until the slurry is completely dried; placing the dried mixed powder into a high-temperature box type furnace, and performing solid-phase reaction at 1600 ℃ for 2 hours; grinding, crushing and ball milling for 10 hours, and then agglomerating and granulating in a spray dryer, wherein the feeding temperature is 240 ℃, the rotating speed is 35rpm, and the pressure is 2.0bar; obtaining particle size distribution of a powder material through a laser particle analyzer, obtaining sub-micron-scale element distribution of the powder material after solid-phase reaction through a transmission electron microscope, compacting the powder material after spray granulation, carrying out a sintering resistance experiment at a uniform temperature field of 1500 ℃ in a high-temperature box type furnace for 20 hours, obtaining micron-scale element distribution through a scanning electron microscope, obtaining average particle size through image statistics, obtaining elastic modulus and thermal conductivity through a nanoindentation and a laser flash method respectively, and calculating a dimensionless sintering resistance evaluation parameter R according to an Lv et al, J.Eur.Ceram.Soc.,38 (2018) 1946-1956 formula (15) s Values.
As shown in FIG. 4, the average grain size of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition is increased from the initial 0.89 μm to 1.06 μm by 19% after sintering for 20 hours in a uniform temperature field at 1500 ℃.
As shown in FIG. 5, the non-dimensional anti-sintering performance evaluation parameter R of the anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition is sintered for 20 hours at the uniform temperature field of 1500 DEG C s The value was reduced from an initial 1.0 to 0.83.
Example 3
The main process of this example is identical to that of example 2, and the duration of the sintering resistance experiment at a uniform temperature field of only 1500 ℃ is changed to 200 hours.
As shown in FIG. 4, the average grain size of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition is further increased from the initial 0.89 μm to 1.82 μm by 104% after being sintered for 200 hours in a uniform temperature field at 1500 ℃.
As shown in FIG. 5, the non-dimensional anti-sintering performance evaluation parameter R of the anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition after being sintered for 200 hours in a uniform temperature field at 1500 DEG C s The value was further reduced to 0.59.
Comparative example 1
Carrying out solid phase reaction at 1600 ℃ on yttria-stabilized zirconia YSZ (99.9%, 10 mu m, oerlikon Metco) raw powder in a high-temperature box type furnace, and preserving the heat for 2 hours; crushing, grinding and sieving, and then carrying out agglomeration granulation in a spray dryer, wherein the feeding temperature is 240 ℃, the rotating speed is 35rpm, and the pressure is 2.0bar; briquetting the powder material after spray granulation, combining a scanning electron microscope with an image method to obtain average particle size, respectively obtaining elastic modulus and thermal conductivity through a nano indentation method and a laser flash method, and calculating a dimensionless sintering resistance evaluation parameter R according to Lv et al, J.Eur.Ceram.Soc.,38 (2018) 1946-1956 formula (15) s Values.
As shown in FIG. 4, the average grain size of the yttrium oxide stabilized zirconia thermal barrier coating powder material for the preparation plasma spraying physical vapor deposition is 0.77 mu m, which is similar to that of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for the preparation plasma spraying physical vapor deposition.
As shown in FIG. 5, the dimensionless sintering resistance evaluation parameter R of the yttria-stabilized zirconia thermal barrier coating powder material for the preparation state plasma spraying physical vapor deposition s The value is 1.0, and the dimensionless sintering resistance evaluation parameter R of the sintering resistance high entropy ceramic thermal barrier coating powder material for the plasma spraying physical vapor deposition in the preparation state s The values are the same.
Comparative example 2
Carrying out solid phase reaction at 1600 ℃ on yttria-stabilized zirconia YSZ (99.9%, 10 mu m, oerlikon Metco) raw powder in a high-temperature box type furnace, and preserving the heat for 2 hours; crushing, grinding, sieving, granulating in spray drier, and deliveringThe material temperature is 240 ℃, the rotating speed is 35rpm, and the pressure is 2.0bar; briquetting the powder material after spray granulation, carrying out a sintering resistance experiment at a uniform temperature field of 1500 ℃ in a high-temperature box furnace for 20 hours, obtaining average particle size by a scanning electron microscope and an image method, respectively obtaining elastic modulus and thermal conductivity by a nanoindentation and a laser flash method, and calculating a dimensionless sintering resistance evaluation parameter R according to Lv et al, J.Eur.Ceram.Soc.,38 (2018) 1946-1956 formula (15) s Values.
As shown in FIG. 4, the average grain size of the yttrium oxide stabilized zirconia thermal barrier coating powder material for plasma spraying physical vapor deposition is increased from the initial 0.77 μm to 1.14 μm by 48%, which is higher than that of the sintering resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition of example 2 by 19% after sintering for 20 hours at the uniform temperature field of 1500 ℃. The comparison result shows that the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition has slower grain growth under the condition of ultra-high temperature of 1500 ℃.
As shown in FIG. 5, the non-dimensional sintering resistance evaluation parameter R of the yttria-stabilized zirconia thermal barrier coating powder material for plasma spraying physical vapor deposition is sintered for 20 hours at a uniform temperature field of 1500 DEG C s The value is reduced from 1.0 to 0.49, which is lower than the dimensionless anti-sintering performance evaluation parameter R of the anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition in the embodiment 2 after being sintered for 20 hours in a uniform temperature field at 1500 DEG C s The value was 0.83. The comparison result shows that the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition has no dimension and no sintering resistance evaluation parameter R under the condition of ultra-high temperature of 1500 DEG C s The reduction of the value is less, namely the degree of degradation of force and thermal properties is less, and the sintering resistance is better.
Comparative example 3
The main process of the comparative example is identical to that of comparative example 2, and the sintering resistance experimental duration of the uniform temperature field at 1500 ℃ is changed to 200 hours.
As shown in FIG. 4, the average grain size of the yttrium oxide stabilized zirconia thermal barrier coating powder material for plasma spraying physical vapor deposition is further increased from the initial 0.77 μm to 2.43 μm after being sintered for 200 hours at the uniform temperature field of 1500 ℃, and the increase is 216%, which is remarkably higher than that of the sintering resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition of example 3 by 104% after being sintered for 200 hours at the uniform temperature field of 1500 ℃. The comparison result shows that the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition still has slower grain growth under the condition of long-term ultrahigh temperature of 1500 ℃.
As shown in FIG. 5, the non-dimensional sintering resistance evaluation parameter R of the yttria-stabilized zirconia thermal barrier coating powder material for plasma spraying physical vapor deposition is sintered for 200 hours at a uniform temperature field of 1500 DEG C s The value is further reduced from the initial 1.0 to 0.34, which is lower than the dimensionless anti-sintering performance evaluation parameter R of the anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition in the embodiment 3 after being sintered for 20 hours in a uniform temperature field at 1500 DEG C s The value was 0.59. The comparison result shows that the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition has no dimension and no sintering resistance evaluation parameter R under the condition of long-term ultra-high temperature of 1500 DEG C s The value still reduces less, namely the force and thermal properties still reduce the degradation degree in the longer sintering resistance evaluation experiment time, and the better sintering resistance is maintained in the superhigh temperature condition for a longer time.
In summary, compared with the only widely used thermal barrier coating ceramic material Yttria Stabilized Zirconia (YSZ) at present, the sintering-resistant high-entropy ceramic thermal barrier coating powder material (YLNSE) for plasma spraying physical vapor deposition provided by the embodiment of the invention has better sintering resistance at the ultra-high temperature condition of 1500 ℃, and the morphology and the particle size distribution of the powder material are suitable for the plasma spraying physical vapor deposition process, so that the application of the feather-type columnar structure sintering-resistant high-entropy ceramic thermal barrier coating is facilitated, and the sintering resistance of the thermal barrier coating is cooperatively improved from two layers of the material and the structure; the preparation process of the powder material is simple, and is favorable for batch preparation and engineering application of the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition is characterized in that the chemical formula of the powder material is (Y 0.2 La 0.2 Nd 0.2 Sm 0.2 Eu 0.2 ) 2 Zr 2 O 7 Has spherical morphology and particle size of 5-50 μm.
2. The powder material of the anti-sintering high-entropy ceramic thermal barrier coating for plasma spraying physical vapor deposition according to claim 1, wherein the powder material has an anti-sintering coefficient R after being sintered for 200 hours at 1500 DEG C s >0.5。
3. A method for preparing the sintering-resistant high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition as claimed in claim 1 or 2, which is characterized by comprising the following steps:
y is set to 2 O 3 、La 2 O 3 、Nd 2 O 3 、Sm 2 O 3 、Eu 2 O 3 ZrO (ZrO) 2 Mixing the powder according to the molar ratio of 1:1:1:1:5, grinding, drying, and performing solid phase reaction at 1600+/-50 ℃ to obtain mixed powder; crushing, grinding and sieving the mixed powder, and performing spray drying agglomeration granulation to obtain the sintering-resistant high-entropy ceramic thermal barrier coating powder material.
4. The method according to claim 3, wherein the solid phase reaction time is 2.+ -. 1h.
5. A method according to claim 3, wherein the spray drying conditions are a feed temperature of 240±10 ℃, a rotational speed of 35±5rpm, and a pressure of 2.0±0.5bar.
6. A method of manufacture according to claim 3, wherein the milling conditions are: anhydrous ethanol is used as medium, zrO 2 The balls are ball-milling balls, and ball-milling and mixing are carried out for 10+/-2 hours at the rotating speed of 300+/-50 rpm;
the drying condition is that the drying is carried out for 20+/-2 hours at 70+/-10 ℃.
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| PCT/CN2023/128311 WO2024032829A1 (en) | 2023-08-03 | 2023-10-31 | Anti-sintering high-entropy ceramic thermal barrier coating powder material for plasma spraying physical vapor deposition, and preparation method therefor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060246226A1 (en) * | 2004-09-10 | 2006-11-02 | Hui Dai | Thermal barrier coating material |
| CN110272278A (en) * | 2019-05-17 | 2019-09-24 | 东华大学 | Thermal barrier coating high entropy ceramic powder and preparation method thereof |
| CN113023776A (en) * | 2021-03-10 | 2021-06-25 | 上海交通大学 | Fluorite-structured high-entropy oxide powder for thermal barrier coating and preparation method thereof |
| CN113045312A (en) * | 2021-03-23 | 2021-06-29 | 陕西科技大学 | High-entropy yttrium pyrochlore ceramic with glass-like thermal conductivity and preparation method thereof |
| CN114751737A (en) * | 2021-08-19 | 2022-07-15 | 厦门稀土材料研究所 | Zirconic acid rare earth-based high-entropy ceramic nanofiber and preparation method and application thereof |
| CN116377372A (en) * | 2023-03-30 | 2023-07-04 | 广东省科学院新材料研究所 | High-entropy ceramic thermal barrier coating and preparation method thereof |
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| CN112839915B (en) * | 2018-10-09 | 2022-11-15 | 欧瑞康美科（美国）公司 | High entropy oxide for Thermal Barrier Coating (TBC) top coats |
| CN114149260B (en) * | 2021-12-14 | 2023-01-03 | 内蒙古工业大学 | Low-thermal-conductivity high-entropy ceramic thermal barrier coating material |
-
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- 2023-08-03 CN CN202310967859.9A patent/CN117229054A/en active Pending
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060246226A1 (en) * | 2004-09-10 | 2006-11-02 | Hui Dai | Thermal barrier coating material |
| CN110272278A (en) * | 2019-05-17 | 2019-09-24 | 东华大学 | Thermal barrier coating high entropy ceramic powder and preparation method thereof |
| CN113023776A (en) * | 2021-03-10 | 2021-06-25 | 上海交通大学 | Fluorite-structured high-entropy oxide powder for thermal barrier coating and preparation method thereof |
| CN113045312A (en) * | 2021-03-23 | 2021-06-29 | 陕西科技大学 | High-entropy yttrium pyrochlore ceramic with glass-like thermal conductivity and preparation method thereof |
| CN114751737A (en) * | 2021-08-19 | 2022-07-15 | 厦门稀土材料研究所 | Zirconic acid rare earth-based high-entropy ceramic nanofiber and preparation method and application thereof |
| CN116377372A (en) * | 2023-03-30 | 2023-07-04 | 广东省科学院新材料研究所 | High-entropy ceramic thermal barrier coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| BOWEN LV ET AL.: "Towards enhanced sintering resistance: Air-plasma-sprayed thermal barrier coating system with porosity gradient", 《JOURNAL OF THE EUROPEAN CERAMIC SOCIETY》, vol. 38, no. 4, 9 December 2017 (2017-12-09), pages 1946 - 1956 * |
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