CN106065457A - Deposited particles combines sufficient plasma spraying ceramic of compact coating and preparation method thereof - Google Patents
Deposited particles combines sufficient plasma spraying ceramic of compact coating and preparation method thereof Download PDFInfo
- Publication number
- CN106065457A CN106065457A CN201610617173.7A CN201610617173A CN106065457A CN 106065457 A CN106065457 A CN 106065457A CN 201610617173 A CN201610617173 A CN 201610617173A CN 106065457 A CN106065457 A CN 106065457A
- Authority
- CN
- China
- Prior art keywords
- ceramic
- plasma spraying
- coating
- particle
- deposited particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a kind of deposited particles and combine sufficient plasma spraying ceramic of compact coating and preparation method thereof, relate to the field such as materials processing, machine-building.Powder particle, with ceramic powders as raw material, is heated to molten state, and is heated to matrix surface, on the uniform temperature condition corresponding with material, carrying out the preparation of ceramic of compact coating by the method.The material feedstock range of choice of compact texture ceramic coating prepared by the method is wide, deposited particles combines fully, porosity is little, has the military service performances such as the superior erosion resistance suitable with block materials, high stress material abrasion.The invention provides and combine sufficient ceramic of compact novel preparation method between a kind of plasma spray deposition particle.
Description
Technical field
The invention belongs to materials processing and mechanical manufacturing field, relate to one and prepare ceramic of compact based on plasma spraying method
The method of coating, is specifically related to a kind of deposited particles and combines sufficient plasma spraying ceramic of compact coating and preparation method thereof.
Background technology
Plasma spraying is to prepare high-performance ceramic coating, raising material military service performance or military service material surface specific function
Important method.When preparing coating, powder particle is sent in the plasma jet of thermal source, is heated to melted or connects
Nearly melted state, collides successively and piles up at matrix surface and form coating.Therefore, coating is by coming from the melted or grain of half melt
The discoid build-up of particles that son deformation is formed forms, and presents layer structure；And in this spray-on coating with layer structure
Interface fine structure appreciable impact between particle layer or even controls the various performances of coating.No matter there are some researches show
It is metal coating, or thermal Sperayed Ceramic Coatings, the particle interlayer combination rate of coating is very limited, and maximum only 32% (see literary composition
Offer 1:Li and Ohmori, J.Thermal Spray Technol., 2002, Vol.11, pp.365-374), and coating is each
Plant mechanical property (such as elastic modelling quantity, fracture toughness, Wear rate), electrical conductivity, thermal conductivity etc. all by particle layer in coating
Between the control of limited combination at interface, thus the above-mentioned performance showing coating is the 10%～30% of respective masses performance
(such as document 2:Kuroda and Clyne, Thin Solid Films, 1991, Vol.200, pp.49-66；Aforementioned documents 1).
This not only makes the abrasion resistance properties of coating, as erosive wear resistance (such as document 3:Li etc., Wear, 2006, Vol.260,
Pp.1166-1172), cavitation corrosion, fine motion, fatigue, high stress material abrasion performance are substantially less than similar block, so that ceramic
The superior abrasion resistance properties of material is difficult to play；On the other hand, uncombined interface and other type of hole are interconnected composition
From the through through hole to coating/basal body interface of coating surface so that coating can not stop isolation corrosive medium and base completely
The contact of body alloy, so that spraying state coating prepared by the superior ceramic material of decay resistance is difficult to be directly used as corrosion-resistant
Coating.
Substantial amounts of research shows, by optimizing thermal spray parameters, goes out as mentioned above given in typical case's document, can not be notable
Improve deposited particles interlayer bonding state, this be due to combination interface when particle deposit depend on molten particles collide before
Temperature and the matrix surface temperature when collision.But, owing to the heating of spraying particle is to carry out in accelerator, and any
Towards the change of the spray parameters improving heating particulates effect, all along with the effect increasing particle rapidity so that heat time heating time
Cripetura, thus particle temperature cannot be increased substantially.On the other hand, real as thermal spraying that is conventional and that have been widely used as usual
In trampling, for reducing the so-called thermal stress that the difference of linear expansion of coating material and matrix causes, generally need in spraying process
The modes such as pressure-air cooling to be used reduce the temperature rise caused because of high temperature coating material deposition, so that molten particles touches
Temperature before hitting is maintained at relatively low level, the effect of above two aspect factors so that the ceramic coating of plasma spraying, wherein
The combination of particle interlayer of layer by layer deposition limited, be about 32%.
In view of the combination promoting possible enhancing particle and matrix of substrate temperature, although also there are some researches show that raising is melted
Substrate temperature before particle encounter, can strengthen the combination of ceramic particle, but, it is not aware that, for spy according to research so far
Dingtao porcelain particulate material, is heated to matrix surface temperature between the particle that what temperature guarantee is enough combining actually.
In sum, the most not yet there is abundant systematic research achievement, even if substrate preheating is also mainly to remove table
The face adsorbate based on adsorption moisture, is not given for specific material and may insure that and fully connect when molten particles deposits
Preheating temperature together.Therefore, the matrix surface temperature combined between plasma spray deposition ceramic particle is not substantially ensured that
The determination method of value.
Summary of the invention
For the defect overcoming above-mentioned prior art to exist, it is an object of the invention to provide a kind of deposited particles combination and fill
Plasma spraying ceramic of compact coating divided and preparation method thereof, the method can significantly improve plasma spraying ceramic coat
Wear-resistant or decay resistance, or other effectiveness based on physical and chemical performance；Through the compact texture pottery that the method prepares
Ceramic material coating deposited particles combines fully, and porosity is little, has the superior erosion resistance corresponding with block materials, heavily stressed mill
The military service performances such as grinding abrasion.
The present invention is to be achieved through the following technical solutions:
A kind of deposited particles combines sufficient plasma spraying ceramic of compact coating production, uses plasma jet to make
For thermal source, ceramic powder particle is heated to melted or semi-molten state, and simultaneously by the acceleration effect shape of plasma jet
Become high-velocity particles line；
Under conditions of matrix surface temperature being controlled more than uniform temperature, under atmospheric atmosphere, high-velocity particles line sprays
Penetrate at matrix surface, make to sprawl the ceramic particle of flattening and the abundant chemical bond of particle deposited and the formation etc. that constantly adds up
Plasma spray ceramic of compact coating.
Described matrix surface temperature is controlled in uniform temperature TDAbove, this temperature TDIt is according to material melting point Tm, by formula
TD=0.58xTm-890 DEG C calculate.
Matrix surface temperature is ensured by the preheating of matrix entirety, or is penetrated by auxiliary thermal source, laser, flame or plasma
Flow the heating in spraying particle line front to ensure, or the In Situ Heating effect by the plasma jet used by plasma spraying
Ensure.
Ceramic powder particle selects fusing point from different types of oxide ceramic powder of about 1000 DEG C to more than 3000 DEG C
Material；The distribution of sizes of ceramic powder particle is 10～100 μm.
Matrix surface is coating deposition matrix surface when starting, or for the pottery that deposited before in coating deposition
Coating surface.
Matrix material is metal alloy compositions or inorganic ceramic material.
It is characterized in that, the geometrical shapes of matrix is other curved surface of plane, the face of cylinder, taper seat or variable curvature
Surface.
Sprawl flattening ceramic particle and reach more than 60% with the abundant chemically combined combination rate of particle deposited.
The invention also discloses and adopt the plasma spraying ceramic of compact coating prepared with the aforedescribed process, described fine and close pottery
Porcelain coating, can be used for wear-resistant, erosion resistance, the protective coating such as corrosion-resistant and be obviously improved protected effect, or can serve as ion
Conduction or the functional coating such as electronic conduction or heat conduction are obviously improved conductive performance.
Compared with prior art, the present invention has a following useful technique effect:
Deposited particles disclosed by the invention combines sufficient plasma spraying ceramic of compact coating production, the method with
Ceramic powders is raw material, powder particle is heated to molten state, and matrix surface is heated to a constant temperature corresponding with material
On degree condition, carry out the preparation of ceramic of compact coating, be under air atmosphere, realize preparation based on plasma spraying method
, it is crucial that it is for different ceramic materials, is that matrix surface is being prepared under the conditions of temperature controlled the pottery painting of densification
Layer.During molten particles collision matrix, the minimum temperature required for whole interface is sufficiently formed combination has good with the fusing point of material
Good linear corresponding relation, thus establishes and obtains deposited particles be sufficiently formed chemically combined by controlling matrix surface temperature
Plasma spraying ceramic of compact coating production.The method of the present invention can significantly improve the resistance to of plasma spraying ceramic coat
Abrasion or decay resistance, or other effectiveness based on physical and chemical performance.
The compact texture ceramic coating material feedstock range of choice prepared through the inventive method is wide, deposited particles combines
Fully, porosity little, there is the military service performances such as superior erosion resistance, high stress material abrasion.
Accompanying drawing explanation
Fig. 1 is the YSZ coating section structure of plasma spray deposition under air atmosphere in embodiment 1；
Fig. 2 is to use traditional mode YSZ coating section structure of plasma spraying during with pressure-air cooling；
Fig. 3 is embodiment 2 LZO coating fractography of plasma spray deposition under air atmosphere；Wherein, (a) is low
Fractography under Bei；B () is the fractography of shooting under high power；
Fig. 4 is embodiment 3 Al of plasma spray deposition under air atmosphere2O3Coating fractography；Wherein, (a) is low
Fractography under Bei；B () is the fractography of shooting under high power；
Fig. 5 is to use traditional mode Al of plasma spraying during with pressure-air cooling2O3Coating section is tied
Structure；
Fig. 6 is embodiment 4 TiO2 coating fractography of plasma spray deposition under air atmosphere.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, described in be explanation of the invention and
It not to limit.
The present invention finds through substantial amounts of systematic study, is sufficiently formed combination at whole interface during molten particles collision matrix
Required minimum temperature has good linear corresponding relation with the fusing point of material, thus establishes by controlling matrix surface temperature
Spend and obtain deposited particles and be sufficiently formed chemically combined plasma spraying ceramic of compact coating production.This preparation method is
Under air atmosphere, realizing preparation based on plasma spraying method, it is crucial that it is for different ceramic materials, is to base
The ceramic coating of densification is prepared under the conditions of surface is temperature controlled.
First, table 1 gives the fusing point of several typical ceramic material and required minimum surface temperature, fills between particle to determine
Divide the surface temperature control condition in the ceramic coating preparation combined.Preparing well-bound pottery between particle of the present invention
During porcelain coating, matrix or Coated Surface Temperature need to be maintained at by the computing formula described in claim, or described in table 1
On low temperature.
Table 1 typical ceramic material fusing point and the minimum surface temperature prepared needed for ceramic of compact coating
| Ceramic material | ZrO2 | LZO | LCO | Al2O3 | TiO2 |
| Fusing point (DEG C) | 2760 | 2310 | 2224 | 2050 | 1790 |
| Minimum temperature (DEG C) | 650 | 450 | 400 | 300 | 150 |
Embodiment 1
Use GP-80 plasma spraying, by the yittrium oxide (Y of powder particle size 20-50 μm2O3) stable zirconium oxide
(ZrO2) (YSZ) be sprayed on material, and matrix surface is being preheating to about 650～700 DEG C, prepares YSZ under 40kW arc power
Coating.
As it is shown in figure 1, polishing section presents the structure of densification, in addition to a small amount of vertical crack with transversal crack, because of
It is well combined between particle, it is difficult to differentiate particle interface.As a comparison, Fig. 2 gives traditional method, use same paint finishing with
Parameter, under conditions of only suitably being cooled down matrix surface by compressed air in spraying, the coating failure face of deposition is tied
Structure, particle interlayer presents substantial amounts of uncombined interface.
Embodiment 2
Use GTV plasma spray system, by the La of powder particle size 10-45 μm2Zr2O7(LZO) it is sprayed on material,
Use flame, in spraying, matrix surface temperature is maintained at 500～550 DEG C, under 36kW arc power, prepare LZO coating.
As it is shown on figure 3, wherein, (a) is the fractography under low power；B () is the fractography of shooting under high power.From polishing
Section is it can be seen that make its layer structure become to be difficult to differentiate because being well combined between coating particle.
Embodiment 3
Use GP-80 plasma spray system, by the Al of powder particle size 10-45 μm2O3For sprayed on material, use fire
Matrix surface temperature is maintained at 350～400 DEG C in spraying by flame, prepares in stainless steel-based surface under 35kW arc power
Al2O3Coating.
As shown in Figure 4, wherein, (a) is the fractography under low power；B () is the fractography of shooting under high power.From polishing
Section is it can be seen that make its layer structure become to be difficult to differentiate because being well combined between coating particle.In order to contrast, Fig. 5 is given
The fractography of coating prepared by traditional method.This coating being carried out erosion test show, its erosive wear speed is tradition
Between 20～30% of coating.
Embodiment 4
Use GP-80 plasma spray system, by the TiO of powder particle size 30-75 μm2For sprayed on material, use height
Can laser in spraying by Al2O3Matrix surface temperature is maintained at 150～250 DEG C, the coating of preparation under 35kW arc power.
As shown in Figure 6, from polishing section it can be seen that coating structure is fine and close, between particle, its stratiform is made to tie because being well combined
Structure becomes to be difficult to differentiate.
Embodiment 5
Use flame to be maintained at by Ni/YSZ matrix at about 350 DEG C, use air plasma spraying LaxSr1-xGaO3Coating,
Structure observation shows that coating is fine and close；Measuring its conduction of heat to show, pyroconductivity reaches more than the 85% of the sintered body of same material.
Claims (9)
1. a deposited particles combines sufficient plasma spraying ceramic of compact coating production, it is characterised in that employing etc.
Ceramic powder particle, as thermal source, is heated to melted or semi-molten state by ionic fluid, and simultaneously by plasma jet
Acceleration effect forms high-velocity particles line；
Under conditions of matrix surface temperature is controlled more than uniform temperature, under atmospheric atmosphere, high-velocity particles line is sprayed
At matrix surface, make to sprawl flattening ceramic particle and the abundant chemical bond of particle deposited and constantly cumulative form plasma
Spraying ceramic of compact coating.
Deposited particles the most according to claim 1 combines sufficient plasma spraying ceramic of compact coating production, its
It is characterised by, described matrix surface temperature is controlled more than uniform temperature, this temperature TDIt is according to material melting point Tm, by formula
TD=0.58xTm-890 DEG C calculate.
Deposited particles the most according to claim 2 combines sufficient plasma spraying ceramic of compact coating production, its
Being characterised by, matrix surface temperature is ensured by the preheating of matrix entirety, or by auxiliary thermal source, laser, flame or plasma
In spraying particle line front, heating ensures, or is protected by the In Situ Heating effect of the plasma jet used by plasma spraying
Card.
Deposited particles the most according to claim 1 combines sufficient plasma spraying ceramic of compact coating production, pottery
Different types of oxide ceramic powder material that porcelain powder particle selects fusing point to be 1000 DEG C～3500 DEG C；Ceramic powder particle
Distribution of sizes be 10～100 μm.
Deposited particles the most according to claim 1 combines sufficient plasma spraying ceramic of compact coating production, its
Being characterised by, matrix surface is matrix surface during coating deposition beginning, or is the ceramic coating surface deposited.
Deposited particles the most according to claim 1 combines sufficient plasma spraying ceramic of compact coating production, its
Being characterised by, matrix material is metal alloy compositions or inorganic ceramic material.
Deposited particles the most according to claim 1 combines sufficient plasma spraying ceramic of compact coating production, its
Being characterised by, the geometrical shapes of matrix is other curved surface of plane, the face of cylinder, taper seat or variable curvature.
Deposited particles the most according to claim 1 combines sufficient plasma spraying ceramic of compact coating production, its
It is characterised by, sprawls flattening ceramic particle and reach more than 60% with the abundant chemically combined combination rate of particle deposited.
9. use in claim 1～8 the plasma spraying ceramic of compact coating that the method described in any one prepares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617173.7A CN106065457A (en) | 2016-07-29 | 2016-07-29 | Deposited particles combines sufficient plasma spraying ceramic of compact coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617173.7A CN106065457A (en) | 2016-07-29 | 2016-07-29 | Deposited particles combines sufficient plasma spraying ceramic of compact coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106065457A true CN106065457A (en) | 2016-11-02 |
Family
ID=57207195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610617173.7A Pending CN106065457A (en) | 2016-07-29 | 2016-07-29 | Deposited particles combines sufficient plasma spraying ceramic of compact coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106065457A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456837A (en) * | 2018-02-06 | 2018-08-28 | 杭州天朗金属科技有限公司 | A kind of production method of toughening ceramic |
| CN108655128A (en) * | 2017-04-01 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | The method and apparatus of cleaning treatment is carried out to cookware and prepares the method and system of cookware |
| CN109554656A (en) * | 2018-12-13 | 2019-04-02 | 西安交通大学 | The preparation method and system of ceramic of compact coating under a kind of room temperature atmospheric atmosphere |
| CN110545924A (en) * | 2017-04-13 | 2019-12-06 | 康宁股份有限公司 | coated strip |
| CN112275593A (en) * | 2020-10-16 | 2021-01-29 | 西安热工研究院有限公司 | Method for improving coating microstructure |
| CN114438436A (en) * | 2022-02-09 | 2022-05-06 | 西安交通大学 | Method for improving bonding strength of metal bonding layer and ceramic layer of thermal barrier coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731616A (en) * | 2005-08-15 | 2006-02-08 | 西安交通大学 | Method for manufacturing solid oxide fuel cell electrolyte |
-
2016
- 2016-07-29 CN CN201610617173.7A patent/CN106065457A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1731616A (en) * | 2005-08-15 | 2006-02-08 | 西安交通大学 | Method for manufacturing solid oxide fuel cell electrolyte |
Non-Patent Citations (1)
| Title |
|---|
| GUAN-JUN YANG 等: "Critical bonding temperature for the splat bonding formation during plasma spraying of ceramic materials", 《SURFACE & COATING TECHNOLOGY》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655128A (en) * | 2017-04-01 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | The method and apparatus of cleaning treatment is carried out to cookware and prepares the method and system of cookware |
| CN108655128B (en) * | 2017-04-01 | 2022-03-29 | 佛山市顺德区美的电热电器制造有限公司 | Method and equipment for cleaning cookware and method and system for preparing cookware |
| CN110545924A (en) * | 2017-04-13 | 2019-12-06 | 康宁股份有限公司 | coated strip |
| US11498881B2 (en) | 2017-04-13 | 2022-11-15 | Corning Incorporated | Coating tape |
| CN108456837A (en) * | 2018-02-06 | 2018-08-28 | 杭州天朗金属科技有限公司 | A kind of production method of toughening ceramic |
| CN109554656A (en) * | 2018-12-13 | 2019-04-02 | 西安交通大学 | The preparation method and system of ceramic of compact coating under a kind of room temperature atmospheric atmosphere |
| CN112275593A (en) * | 2020-10-16 | 2021-01-29 | 西安热工研究院有限公司 | Method for improving coating microstructure |
| CN112275593B (en) * | 2020-10-16 | 2023-02-28 | 西安热工研究院有限公司 | Method for improving coating microstructure |
| CN114438436A (en) * | 2022-02-09 | 2022-05-06 | 西安交通大学 | Method for improving bonding strength of metal bonding layer and ceramic layer of thermal barrier coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106065457A (en) | Deposited particles combines sufficient plasma spraying ceramic of compact coating and preparation method thereof | |
| CN104894554B (en) | A kind of preparation method and application of high-compactness cold spraying metal/metal base lithosomic body | |
| US8486496B2 (en) | Method of preparing wear-resistant coating layer comprising metal matrix composite and coating layer prepared thereby | |
| Mittal et al. | Suspension and solution precursor plasma and HVOF spray: A review | |
| Liu et al. | Spraying power influence on microstructure and bonding strength of ZrSi2 coating for SiC coated carbon/carbon composites | |
| US20110268956A1 (en) | Method for obtaining ceramic coatings and ceramic coatings obtained | |
| CN105555728B (en) | Enamel powder, the metal component with enamel coating surface segment and its manufacturing method | |
| CN103924185A (en) | Novel Architectures For Ultra Low Thermal Conductivity Thermal Barrier Coatings With Improved Erosion And Impact Properties | |
| CN106834974A (en) | iron-based alloy coating and method for forming the same | |
| US7799716B2 (en) | Partially-alloyed zirconia powder | |
| CN105755422A (en) | Method and device for preparing gradient metal ceramic composite coating on surface of bias current plate | |
| CN103184400A (en) | Nano-ceramic composite spraying powder and preparation method for same | |
| US6702886B2 (en) | Mold coating | |
| CN103526197B (en) | The method of maintenance element | |
| EP2113582A2 (en) | Process for forming an improved durability thick ceramic coating | |
| Alvar et al. | Al2O3-TiB2 nanocomposite coating deposition on titanium by air plasma spraying | |
| CN104846307B (en) | Refractory ceramics coating and its spraying method for Metal Substrate thermal spraying | |
| CN102102203B (en) | Preparation method of corrosion resistant FeAl intermetallic compound-based composite structure coating | |
| Sadeghi-Fadaki et al. | The adhesion strength and indentation toughness of plasma-sprayed yttria stabilized zirconia coatings | |
| EP2407573A1 (en) | Highly corrosion-resistant and wearing-resistant member with thermal-spraying deposit and powder for thermal-spraying deposit formation for forming the same | |
| CN109487195A (en) | A kind of ultralimit ferroalloy and preparation method thereof | |
| CN104775086A (en) | Ceramic coating for metal-based thermal spraying and spraying method thereof | |
| JP6596214B2 (en) | Thermal spray material | |
| CN1225568C (en) | Technique for preparing metal-base ceramic composite coating by electric are spraying | |
| CN109554656B (en) | Preparation method and system of compact ceramic coating in normal-temperature atmosphere |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161102 |