CN110029302A - The coating spraying tooling of matrix of samples for the observation of coating material original position stretching - Google Patents

The coating spraying tooling of matrix of samples for the observation of coating material original position stretching Download PDF

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Publication number
CN110029302A
CN110029302A CN201910368708.5A CN201910368708A CN110029302A CN 110029302 A CN110029302 A CN 110029302A CN 201910368708 A CN201910368708 A CN 201910368708A CN 110029302 A CN110029302 A CN 110029302A
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China
Prior art keywords
fixed
coating
matrix
barrier bed
fixed section
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Granted
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CN201910368708.5A
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Chinese (zh)
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CN110029302B (en
Inventor
底月兰
王乐
王海斗
董丽虹
刘明
邢志国
唐令
刘韬
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Academy of Armored Forces of PLA
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Academy of Armored Forces of PLA
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Priority to CN201910368708.5A priority Critical patent/CN110029302B/en
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134Plasma spraying
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/2202Preparing specimens therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/225Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
    • G01N23/2251Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/06Special adaptations of indicating or recording means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0017Tensile
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/026Specifications of the specimen
    • G01N2203/0262Shape of the specimen
    • G01N2203/0278Thin specimens
    • G01N2203/0282Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/06Indicating or recording means; Sensing means
    • G01N2203/0641Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02Details not specific for a particular testing method
    • G01N2203/06Indicating or recording means; Sensing means
    • G01N2203/067Parameter measured for estimating the property
    • G01N2203/0682Spatial dimension, e.g. length, area, angle

Abstract

The invention discloses a kind of coating spraying toolings of matrix of samples for the observation of coating material original position stretching, and the coating spraying tooling includes: the first barrier bed, and first barrier bed wraps up the first fixed section;Second barrier bed, second barrier bed wrap up the second fixed section;First fixed pin, the first fixed pin insertion first positioning hole is interior and passes through first barrier bed;Second fixed pin, the second fixed pin insertion second location hole is interior and passes through second barrier bed;Fixture, the fixture is for clamping multiple matrix of samples and making the spray-coating surface of multiple matrix of samples towards same direction.Coating spraying tooling according to an embodiment of the present invention can in the matrix of samples of small size spray-on coating, so as to be placed in scanning electronic microscope observation, and then it is conducive to the micromechanism of damage of analysis the coating material germinating of crackle and extension mechanism and material during stretching.

Description

The coating spraying tooling of matrix of samples for the observation of coating material original position stretching
Technical field
The present invention relates to coating testing experiment fields, more particularly, to a kind of examination for the observation of coating material original position stretching The coating spraying tooling of sample matrix.
Background technique
Probing into for coating material mechanics properties testing and micromechanism of damage in the related technology is usually tried using universal tensile Machine is tested to carry out under macro-scale, for example, by using the tension crack process of the method observation coating of high resolution camera shooting, and In conjunction with the strain variation situation of Digital Image Correlation Method measurement coating front surface.
Since coating material mostly passes through what the methods of plasma spraying or physical vapour deposition (PVD) were prepared, due to spray The particularity of coating method, the coating thickness of coating material may be subjected to limitation, such as the spraying system of certain ceramic coating materials Standby thickness is generally within the scope of tens microns to several millimeters, since thickness is smaller, even if so utilizing under macro-scale High resolution camera also it is more difficult in detail observe coating material dehiscence process, coating material can not be effectively observed and stretched The micromechanism of damage of the germinating of crackle and extension mechanism and material in journey.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention It is to propose a kind of coating spraying tooling of matrix of samples for the observation of coating material original position stretching, the coating spraying tooling energy Enough spray-on coatings in the matrix of samples of small size so as to be placed in scanning electronic microscope observation, and then are conducive to analysis coating The micromechanism of damage of the material germinating of crackle and extension mechanism and material during stretching.
Embodiment according to the present invention proposes a kind of coating spray of matrix of samples for the observation of coating material original position stretching Tooling is applied, the matrix of samples is including the first fixed section, the second fixed section and is connected to first fixed section and described second Linkage section between fixed section, the width of first fixed section is equal with the width of second fixed section and is greater than the company The width of section is connect, first fixed section is equipped with first positioning hole, and second fixed section is equipped with second location hole, the connection Section is equipped with spray-coating surface, and the coating spraying tooling includes: the first barrier bed, and the first barrier bed package described first is fixed Section;Second barrier bed, second barrier bed wrap up second fixed section;First fixed pin, the first fixed pin insertion In the first positioning hole and pass through first barrier bed;Second fixed pin, the second fixed pin insertion described second are fixed In the hole of position and pass through second barrier bed;Fixture, the fixture is for clamping multiple matrix of samples and making multiple described The spray-coating surface of matrix of samples is towards same direction.
Coating spraying tooling according to an embodiment of the present invention can in the matrix of samples of small size spray-on coating, so as to Be placed in scanning electronic microscope observation, so be conducive to analysis coating material during stretching the germinating of crackle and extension mechanism with And the micromechanism of damage of material.
Some specific embodiments according to the present invention, the thickness of the thickness of first fixed section, second fixed section It is equal to each other with the thickness of the linkage section, the spray-coating surface is formed in the upper surface of the linkage section;Each described first is solid Determine section and is enclosed with the first barrier bed respectively, respectively inserted with the first fixed pin in each first positioning hole, each described Two fixed sections are enclosed with the second barrier bed respectively, respectively inserted with the second fixed pin in each second location hole.
Further, the both ends of first barrier bed bypass two lateral edges and the interval setting of first fixed section respectively To avoid first fixed pin;The both ends of second barrier bed bypass two lateral edges of second fixed section and interval respectively It is arranged to avoid second fixed pin.
Further, the fixture includes: bottom plate;First side clamping plate and second side clamping plate, first side clamping plate and institute State the opposite sides edge that second side clamping plate is respectively arranged on the bottom plate, first side clamping plate, second side clamping plate and described Bottom plate limits clip slot jointly, and the second fixed section of multiple matrix of samples is set in the clip slot.
Further, the height of second side clamping plate is higher than the height of first side clamping plate.
Some specific embodiments according to the present invention, the thickness of the thickness of first fixed section and second fixed section Thickness that is equal and being less than the linkage section, the spray-coating surface are formed in the side surface of the linkage section;First barrier bed The first fixed section of multiple matrix of samples is integrally wrapped up, second barrier bed integrally wraps up the second fixation of multiple matrix of samples Section.
Further, the both ends of first barrier bed are rotating around outermost two in excessively multiple first fixed sections, and The both ends interval of first barrier bed is arranged to allow at least one first fixed section to pass through;The both ends of second barrier bed Rotating around outermost two in excessively multiple second fixed sections, and the both ends interval of second barrier bed is arranged to allow at least One the second fixed section passes through.
Further, the coating spraying tooling further include: multiple first spacer blocks, each first spacer block are set to Between adjacent first fixed section;Multiple second spacer blocks, each second spacer block are set between adjacent second fixed section.
Further, multiple first fixed sections share first fixed pin and first fixed pin passes through multiple institutes State the first spacer block;Multiple second fixed sections share second fixed pin and second fixed pin passes through between multiple described second Spacer block.
Some specific examples according to the present invention, first barrier bed and second barrier bed are iron sheet.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of coating material original position stretching observation system according to an embodiment of the present invention.
Fig. 2 is the structural representation of the matrix of samples of coating material original position stretching observation system according to an embodiment of the present invention Figure.
Fig. 3 is the structure of the matrix of samples of coating material original position stretching observation system in accordance with another embodiment of the present invention Schematic diagram.
Fig. 4 is the structural schematic diagram of matrix of samples according to an embodiment of the present invention and its coating spraying tooling.
Fig. 5 is the structural schematic diagram of matrix of samples in accordance with another embodiment of the present invention and its coating spraying tooling.
Fig. 6 is the flow chart of the coating spraying method of matrix of samples according to an embodiment of the present invention.
Appended drawing reference:
Coating material original position stretching observation system 1,
Original position stretching machine 100, workbench 110, slide rail 111, anticreep groove 112, the first objective table 120, first folder Plate 121, the first threaded hole 122, the first dowel hole 123, the second objective table 130, second clamping plate 131, the second threaded hole 132, Second dowel hole 133, driver 140, sliding guide 141, drive screw 142,
Matrix of samples 200, the first fixed section 210, first positioning hole 211, the second fixed section 220, second location hole 221, Linkage section 230, spray-coating surface 231,
Sample bin 400,
First barrier bed 510, the second barrier bed 520, the first fixed pin 530, the second fixed pin 540,
Fixture 600, bottom plate 610, the first side clamping plate 620, second side clamping plate 630,
First spacer block 710, the second spacer block 720.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In the present invention Description in, " fisrt feature ", " second feature " may include one or more of the features.In the description of the present invention, The meaning of " plurality " is two or more.
Coating material mechanics properties testing and micromechanism of damage are probed into the related technology and tested mostly using universal tensile Machine carries out under macro-scale, generallys use the tension crack process of the method observation coating of high resolution camera shooting, and ties Close the strain variation situation of Digital Image Correlation Method measurement coating front surface.
It needs to make tensile sample matrix under normal conditions, coating material to be tested is then sprayed on basis material, it Typical spray speckle is carried out to coating material surface afterwards, it is therefore an objective to calculate strain for subsequent digital image correlation method and mark is provided Point.Tension test is carried out to tensile sample using universal tensile testing machine after being ready to complete, needs to utilize height in experimentation Resolution camera records drawing process to observe the detailed process of coating cracking, and serialograph, so as to utilize number The strain variation situation of word DIC Method calculating coating front surface.
The changing rule of speckle during stretching is calculated using digital picture related algorithm, obtains strain stress relation.It will apply Layer material is broadly divided into 4 stages to face crack cracking in receiving tensile load:
(1) when coating just starts to bear tensile load, irregular variation is presented in strain;
(2) with the increase of tensile load, coating surface strain is orderly fluctuation status, is similar to sine curve, maximum Strain is respectively wave crest and trough with minimum strain, and wave crest and trough are constantly mobile to same direction;
(3) when tensile load reaches certain phase, the fraction areal strain of coating is sharply increased;
(4) it when the strain of the coating area sharply increased reaches capacity, i.e., the stress in region reaches ultimate tensile, applies Layer is broken.
But since coating is too thin, this method can only detect coating surface strain variation and crack propagation, can not observe The changing rule extended to the lateral position Interface Crack and face crack of coating to Interface Crack.
The observing interface crackle and face crack generallyd use to the method that Interface Crack extends be by controlling omnipotent examination Test the load gradual change realization of machine.Such as prepare the identical multiple matrix of samples for being coated with coating material of parameter, respectively with gradually Increased constantly acting load tensile sample matrix stops stretching, sample is removed tensile sample when stretching reaches determined load Section metallographic specimen is made, observed under a scanning electron microscope to determine crackle form in drawing process and crackle transformation Process.But this method can not real time reaction crackle expansion process, and the selection of load range have it is certain random Property, cause resulting crackle discontinuous with tensile load changing rule, the accuracy of crack propagation process may be will affect.In addition It is lack of standardization due to grinding and polishing in the preparation process of observation sample, it is likely to result in cracked inside brittle coating, influences to tie The accuracy of fruit observation.
In view of the status of the relevant technologies coating material tension test observed pattern, embodiment according to the present invention is proposed Below with reference to the accompanying drawings it is in situ to describe coating material according to an embodiment of the present invention for a kind of coating material original position stretching observation system 1 Stretch observation system 1.
As shown in Figure 1-Figure 3, coating material original position stretching observation system 1 according to an embodiment of the present invention includes original position stretching Machine 100, matrix of samples 200, scanning electron microscope and computer system (not shown).
Matrix of samples 200 is equipped with the spray-coating surface of coating to be measured, and matrix of samples 200 is fixed on original position stretching machine 100, in situ to draw Stretch tensile sample matrix 200 and coating to be measured thereon when machine 100 works.The scanning electron microscope has sample bin 400, Original position stretching machine 100 is set in sample bin 400, and the scanning electron microscope is continuously shot when the coating to be measured is stretched Image carries out overall process video recording.The computer system respectively with 100 phase of the scanning electron microscope and original position stretching machine Even, picture is handled using loading by means of digital image correlation method to obtain the strain size and its change procedure on coating material surface.
Coating material original position stretching observation system 1 according to an embodiment of the present invention can be placed in scanning electricity by setting Original position stretching machine 100 in the microscopical sample bin 400 of son, so as to utilize the scanning electron microscope to drawing process It is observed, realizes the dehiscence process from micro-nano rank observation coating, can clearly capture the specific of coating cracking Process, the position including crack initiation, the path of crack propagation and speed etc..Furthermore with scanning electron microscope in Gao Fang great In-situ observation is carried out under multiple, can observe the variation of coating material microscopic appearance, facilitates the mechanism for analyzing coating cracking.
It for example, during stretching can be with synchronous recording displacement/load signal, so as to realize to coating material The analysis of mechanical property;And the change procedure of coating material can be recorded, under micro-nano-scale so as to infer coating Micromechanism of damage of material during stretching/compressing;A label is identified on coating surface to be observed with nano-imprinting method Later, the image shot during stretching experiment using loading by means of digital image correlation method processing scanning electron microscope, can obtain Obtain the strain size and local train change procedure of coating surface.
Therefore, coating material original position stretching observation system 1 according to an embodiment of the present invention, can observe coating material in detail The dehiscence process of material, conducive to the damage machine of the analysis coating material germinating of crackle and extension mechanism and material during stretching Reason.
In some embodiments of the invention, as shown in Figure 1, original position stretching machine 100 includes workbench 110, first Objective table 120, the second objective table 130 and driver 140.
First objective table 120 and the second objective table 130 are set to workbench 110, the first objective table 120 and the second objective table At least one of 130 can be mobile to the direction far from another, and the first objective table 120 is fixed in one end of matrix of samples 200 And the other end is fixed on the second objective table 130.Driver 140 with it is described in the first objective table 120 and the second objective table 130 At least one transmission connection, when the first objective table 120 and the second objective table 130 are relatively distant from movement, tensile sample matrix 200, To the coating material on tensile sample matrix 200.
Further, workbench 110 is equipped with slide rail 111, the institute in the first objective table 120 and the second objective table 130 It states at least one to slidably engage in slide rail 111, to guarantee that the first objective table 120 and/or the second objective table 130 move When dynamic with the alignment of workbench 110.Driver 140 is connected with sliding guide 141, the first objective table 120 and the second objective table In 130 it is described at least one slidably engage in sliding guide 141, to guarantee that the first objective table 120 and/or second carries The alignment when movement of object platform 130 with driver 140.
Wherein, the both side surface of slide rail 111 is equipped with anticreep groove 112, the first objective table 120 and the second objective table In 130 it is described at least one be equipped with and be matched with the anticreep rib of anticreep groove 112, to prevent the first objective table 120 and second At least one described disengaging slide rail 111 in objective table 130.
In some specific examples of the invention, driver 140 is servo motor, and the motor shaft of the servo motor passes through Shaft coupling is connected with drive screw 142, in drive screw 142 and the first objective table 120 and the second objective table 130 it is described at least One is threadedly engaged, convert the rotary motion of motor shaft in the first objective table 120 and the second objective table 130 described in The linear movement of at least one.For example, there is contrary screw thread at the both ends of drive screw 142 respectively, drive screw 142 Rotation the first objective table 120 of drive and the second objective table 130 reach the function of stretching to reverse movement respectively.
In some embodiments of the invention, as shown in Figure 1, the first objective table 120 is equipped with dismountable first folder Plate 121, the second objective table 130 are equipped with dismountable second clamping plate 131, and one end of matrix of samples 200 is clamped in the first loading Between platform 120 and first clamping plate 121, the other end of matrix of samples 200 is clamped in the second objective table 130 and second clamping plate 131 Between.
Specifically, as shown in Figure 1, first clamping plate 121 is equipped with the first threaded hole 122 and the first dowel hole 123, example Such as, the first threaded hole 122 is two and the first dowel hole 123 is located between two the first threaded holes 122, first clamping plate 121 The first threaded fastener (such as bolt) by being matched with the first threaded hole 122 is removably installed in the first objective table 120, First clamping plate 121 carries out described one end of matrix of samples 200 by being matched with the first positioning pin of the first dowel hole 123 Fixed, which can be further inserted into the first objective table 120.
Second clamping plate 131 is equipped with the second threaded hole 132 and the second dowel hole 133, for example, the second threaded hole 132 is two A and the second dowel hole 133 is located between two the second threaded holes 132, and second clamping plate 131 is by being matched with the second threaded hole 132 the second threaded fastener (such as bolt) is removably installed in the second objective table 130, and second clamping plate 131 passes through cooperation The other end of matrix of samples 200 is fixed in the second positioning pin of the second dowel hole 133, which can To be further inserted into the second objective table 130.
In some specific examples of the invention, the rate of extension, maximum load of original position stretching machine 100, scanning electron are aobvious The amplification factor and observation scope of micro mirror can real-time quantitative adjust, rate of extension may be implemented in 0.036mm/min~1mm/min In the range of linear regulation, maximum load amount can reach 1kN, stretches maximum range up to 10mm, can meet different performance The testing requirement of coating material.
In view of the coating of such as ceramic fragile material, elastic deformation stage is very short during stretching, fracture behaviour Generation is very rapid, when being tested using large-scale cupping machine, since testing machine tensile load is higher, stretches speed Rate is very fast, therefore is difficult to capture the detailed fracture process of coating material.
Original position stretching machine 100 according to an embodiment of the present invention, rate of extension adjustable extent is in 0.036mm/min- Within the scope of 1mm/min, by slowing down rate of extension, it can be achieved that " delay " Tensile Fracture Process to brittle ceramic coating, thus Observation coating material may be implemented slowly to crack to the detailed process for disconnecting peeling.
In some embodiments of the invention, as shown in Figures 2 and 3, it is two kinds that matrix of samples 200, which is divided to,.Wherein, one Kind of matrix of samples 200 for (as shown in Figure 2) from being carried out from the front of coating material, another matrix of samples 200 for from (as shown in Figure 3) is observed in the side of coating, the germinating and expansion of crackle when thus, it is possible to obtain coating cracking in further detail The relevant informations such as the situation of change of exhibition and surface strain.
Specifically, as shown in Fig. 2, a kind of matrix of samples 200 includes the first fixed section 210, the second fixed section 220 and linkage section 230.
First fixed section 210 and the second fixed section 220 are respectively equipped with first positioning hole 211 and second location hole 221, thus The first objective table 120 and the second objective table 130 are fixed on by the first positioning pin and the second positioning pin respectively.Linkage section 230 connects It connects between the first fixed section 210 and the second fixed section 220.
Wherein, the width of the first fixed section 210 is equal with the width of the second fixed section 220 and is greater than the width of linkage section 230 Degree, the thickness of the first fixed section 210, the second fixed section 220 the thickness of thickness and linkage section 230 be equal to each other, linkage section 230 Upper surface be formed with spray-coating surface 231, coating spraying is in spray-coating surface 231, convenient for the front of scanning electron microscope observation coating.
As shown in figure 3, the another kind matrix of samples 200 includes the first fixed section 210, the second fixed section 220 and connection Section 230.
First fixed section 210 and the second fixed section 220 are respectively equipped with first positioning hole 211 and second location hole 221, thus The first objective table 120 and the second objective table 130 are fixed on by the first positioning pin and the second positioning pin respectively.Linkage section 230 connects It connects between the first fixed section 210 and the second fixed section 220.
Wherein, the width of the first fixed section 210 is equal with the width of the second fixed section 220 and is greater than the width of linkage section 230 Degree, the thickness of the first fixed section 210 is equal with the thickness of the second fixed section 220 and is less than the thickness of linkage section 230, linkage section 230 side surface is formed with spray-coating surface 231, and coating spraying is in spray-coating surface 231, convenient for the side of scanning electron microscope observation coating Face.
By designing the matrix of samples 200 of two kinds of different structures, coating material can be effectively observed after spraying The situation of change of front surface and side during stretching, in addition by the high-amplification-factor of scanning electron microscope, Ke Yi Processing is marked using nano-imprinting method to the front of coating and side before tension test, then utilizes digital picture phase The photo that pass method processing scanning electron microscope is shot can obtain the strained situation of coating front and side simultaneously.
Below with reference to the accompanying drawings the coating spraying tooling and coating spraying of matrix of samples 200 according to an embodiment of the present invention are described Method.
As Figure 2-Figure 5, matrix of samples 200 includes the first fixed section 210, the second fixed section 220 and is connected to first Linkage section 230 between fixed section 210 and the second fixed section 220, the width of the first fixed section 210 and the second fixed section 220 Width is equal and is greater than the width of linkage section 230, and the first fixed section 210 is equipped with first positioning hole 211, and the second fixed section 220 is set There is second location hole 221, linkage section 230 is equipped with spray-coating surface 231.
The coating spraying tooling is solid including the first barrier bed 510, the second barrier bed 520, the first fixed pin 530, second Rationed marketing 540 and fixture 600.
First barrier bed 510 wraps up the first fixed section 210, and the second barrier bed 520 wraps up the second fixed section 220, and first is solid The first barrier bed 510 is inserted into first positioning hole 211 and passes through in rationed marketing 530, and it is fixed that the first barrier bed 510 is fixed on first Section 210, the second fixed pin 540 are inserted into second location hole 221 and pass through the second barrier bed 520, the second barrier bed 520 is consolidated Due to the second fixed section 220.Fixture 600 is used to clamp multiple matrix of samples 200 and makes the spray-coating surface of multiple matrix of samples 200 231 towards same direction, to spray simultaneously to the spray-coating surface 231 of multiple matrix of samples 200.
As shown in fig. 6, the coating spraying method of matrix of samples 200 according to an embodiment of the present invention the following steps are included:
First fixed section 210 is wrapped up using the first barrier bed 510 and is inserted into the first fixed pin in first positioning hole 211 530 to fix the first barrier bed 510, wraps up the second fixed section 220 using the second barrier bed 520 and in second location hole 221 The second fixed pin 540 of interior insertion is to fix the second barrier bed 520;
Blasting treatment is carried out to the spray-coating surface 231 of linkage section 230;
Matrix of samples 200 after multiple blasting treatments is placed in fixture 600;
Spray-coating surface 231 is sprayed using supersonic speed plasma apparatus.
Coating spraying tooling and coating spraying method according to an embodiment of the present invention, can be in the matrix of samples of small size Spray-on coating on 200, and coating is blocked by the first barrier bed 510 and the second barrier bed 520, exists only in linkage section 230 Spray-coating surface 231, without being sprayed into the first fixed section 210 and the second fixed section 220, to avoid coating to linkage section 230 There is interference in drawing effect, further, it is possible to prevent coating from entering first positioning hole 211 and second location hole 221, to prevent first Location hole 211 goes wrong with the first positioning pin and second location hole 221 and the cooperation of the second positioning pin, after thus spraying Matrix of samples 200, can be placed in scanning electronic microscope observation, and then is conducive to analysis coating material crackle is sprouted during stretching The micromechanism of damage of raw and extension mechanism and material.
Wherein, the first barrier bed 510 and the second barrier bed 520 are iron sheet, with fusing point with higher, are avoided in high temperature Flame flows down fusing and loses the protection to the first fixed section 210 and the second fixed section 220.
In some specific examples of the invention, the coating spraying method of matrix of samples 200 will be filled before blasting treatment There is the matrix of samples 200 of the first barrier bed 510, the second barrier bed 520, the first fixed pin 530 and the second fixed pin 540 advanced Row cleaning.
Further, the pressure of the blasting treatment is no more than 60MPa, to prevent that pressure is excessive and makes matrix of samples 200 bendings.
In some specific examples of the invention, it after every spraying for carrying out pre-determined number, is spaced after predetermined cooling time again It is sprayed, which is 2, in other words, avoids 200 continuous several times of matrix of samples from spraying, to prevent sample base The temperature of body 200 is excessively high.
In some embodiments of the invention, as shown in Figure 2 and Figure 4, the thickness of the first fixed section 210, second are consolidated The thickness for determining the thickness and linkage section 230 of section 220 is equal to each other, and spray-coating surface 231 is formed in the upper surface of linkage section 230.
Each first fixed section 210 is enclosed with the first barrier bed 510 respectively, is inserted into respectively in each first positioning hole 211 There is the first fixed pin 530, each second fixed section 220 is enclosed with the second barrier bed 520 respectively, and each second location hole 221 is divided Not inserted with the second fixed pin 540.I.e. first barrier bed 510 wraps up first fixed section 210 and passes through one first Fixed pin 530 is fixed, and second barrier bed 520 wraps up second fixed section 220 and consolidated by second fixed pin 540 It is fixed.
Wherein, the both ends of the first barrier bed 510 bypass two lateral edges of the first fixed section 210, the first barrier bed 510 respectively Both ends interval be arranged to avoid the first fixed pin 530, the both ends of the second barrier bed 520 bypass the second fixed section 220 respectively Two lateral edges, and the both ends interval of the second barrier bed 520 is arranged to avoid the second fixed pin 540, is thus convenient for the first barrier bed 510 With the package and fixed operation of the second barrier bed 520.
Further, as shown in figure 4, multiple matrix of samples 200 are carried out while being sprayed in order to realize, to improve spraying effect Rate, fixture 600 include bottom plate 610, the first side clamping plate 620 and second side clamping plate 630.
First side clamping plate 620 and second side clamping plate 630 are respectively arranged on the opposite sides edge of bottom plate 610, second side clamping plate 630 height can be higher than the height of the first side clamping plate 620, and the first side clamping plate 620, second side clamping plate 630 and bottom plate 610 are total With clip slot is limited, the second fixed section 220 of multiple matrix of samples 200 (has wrapped up the second barrier bed 520 at this time and has been combined with Second fixed pin 540) it is set in the clip slot, it is fixed to be realized to multiple matrix of samples 200, convenient for spraying simultaneously, citing For, specific spray parameters can refer to shown in following table:
In some embodiments of the invention, as shown in Figure 3 and Figure 5, the thickness of the first fixed section 210 and second is consolidated The thickness for determining section 220 is equal and be less than the thickness of linkage section 230, and spray-coating surface 231 is formed in the side surface of linkage section 230.
Whole the first fixed section 210 for wrapping up multiple matrix of samples 200 of first barrier bed 510, the second barrier bed 520 are whole Wrap up the second fixed section 220 of multiple matrix of samples 200.That is, the first fixed section 210 of multiple matrix of samples 200 by Same first barrier bed 510 wraps up, and the second fixed section 220 of multiple matrix of samples 200 is wrapped up by same second barrier bed 520.
Specifically, the both ends of the first barrier bed 510 are rotating around outermost two in excessively multiple first fixed sections 210, and The both ends interval of first barrier bed 510 is arranged.The both ends of second barrier bed 520 rotating around in excessively multiple second fixed sections 220 most Two of outside, and the both ends interval setting of the second barrier bed 520.
Wherein, the spacing distance at the both ends of the first barrier bed 510 at least allows first fixed section 210 to pass through, i.e., and The spacing distance at the both ends of one barrier bed 510 is greater than the thickness of first fixed section 210.The both ends of second barrier bed 520 Spacing distance at least allows second fixed section 220 to pass through, i.e., the spacing distance at the both ends of the second barrier bed 520 is greater than one The thickness of second fixed section 220.
Preferably, the both ends of the first barrier bed 510 are only rotating around outermost two in excessively multiple first fixed sections 210 Can, the both ends of the second barrier bed 520 are only rotating around outermost two in excessively multiple second fixed sections 220.
Further, the coating spraying tooling of matrix of samples 200 further includes between multiple first spacer blocks 710 and multiple second Spacer block 720.
Each first spacer block 710 be set to adjacent first fixed section 210 between, with multiple first fixed sections 210 of fixation it Between distance, each second spacer block 720 be set to adjacent second fixed section 220 between, with multiple second fixed sections 220 of fixation The distance between, such as the distance between adjacent linkage section 230 is made to be greater than 2mm, to avoid the painting on adjacent linkage section 230 Layer sticks together.
In order to by multiple matrix of samples 200 and the first barrier bed 510, the second barrier bed 520, multiple first spacer blocks 710, The relative position of multiple second spacer blocks 720 is fixed, multiple first fixed sections 210 share first fixed pin 530 and this One fixed pin 530 passes through multiple first spacer blocks 710, and multiple second fixed sections 220 share second fixed pin 540 and should Second fixed pin 540 passes through multiple second spacer blocks 720.I.e. for multiple matrix of samples 200, using first fixed pin 530 and second fixed pin 540 be fixed, the first fixed pin 530 pass through multiple first fixed sections 210 first positioning Hole 211 and multiple first spacer blocks 710 and the first barrier bed 510, the second fixed pin 540 pass through multiple second fixed sections 220 Second location hole 221 and multiple second spacer blocks 720 and the second barrier bed 520.
Multiple matrix of samples 200 are wrapped using first barrier bed 510 and second barrier bed 520 as a result, It wraps up in, and is fixed using first fixed pin 530 and second fixed pin 540, save the time of assembly tooling, improve Spray efficiency.
Citing describes the course of work of coating material original position stretching observation system 1 according to an embodiment of the present invention below.
For coating material to be observed, it is necessary first to matrix of samples is chosen according to coating material attribute, then in sample base Coating material to be observed is sprayed on body, is carried out later using nanometer embossing on the surface to be observed (front or side) of coating Location hole in matrix of samples is aligned by the label of speckle with the location hole on the first objective table 120 and the second objective table 130, Cover first clamping plate 121 and second clamping plate 131, be inserted into the first positioning pin and the second positioning pin, tighten the first threaded fastener and Second threaded fastener after being then dusted processing to original position stretching machine 100, is sent into scanning electron microscope, sample bin 400 sides have chip and scanning electron microscope to connect, it can be achieved that control of the computer system to original position stretching machine 100. The parameters such as rate of extension, tensile load are set on the computer systems, then adjust scanning electron microscope to suitable amplification Multiple finds region to be observed to defocused.It is then turned on scanning electron microscope kinescope recording function, stretching experiment can be started It is observed, original position stretching machine 100 can be suspended at any time during stretching, then carry out high magnification numbe using scanning electron microscope Photographing operation can get the correlated process picture of coating germinating and extension.
Coating material original position stretching observation system 1 according to an embodiment of the present invention, using scanning electron microscope from microcosmic The tension crack process that thin coating materials are observed on scale can show damage of material under the conditions of extension test completely and open Split process.And it is possible to which the rate of extension and load by adjusting original position stretching machine 100 realize that brittle coating material slowly cracks Process.Furthermore, it is possible to the strained situation of coating front surface and side be measured simultaneously, using scanning electron microscope to extension test Process is recorded at any time or whole record.
In the description of this specification, the description of reference term " specific embodiment ", " specific example " etc. means to combine and be somebody's turn to do Embodiment or example particular features, structures, materials, or characteristics described are contained at least one embodiment of the present invention or show In example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this The range of invention is defined by the claims and their equivalents.

Claims (10)

1. a kind of coating spraying tooling of the matrix of samples for the observation of coating material original position stretching, which is characterized in that the examination Sample matrix includes the first fixed section, the second fixed section and the company being connected between first fixed section and second fixed section Section is connect, the width of first fixed section is equal with the width of second fixed section and is greater than the width of the linkage section, institute The first fixed section is stated equipped with first positioning hole, second fixed section is equipped with second location hole, and the linkage section is equipped with spray-coating surface, The coating spraying tooling includes:
First barrier bed, first barrier bed wrap up first fixed section;
Second barrier bed, second barrier bed wrap up second fixed section;
First fixed pin, first fixed pin are inserted into the first positioning hole and pass through first barrier bed;
Second fixed pin, second fixed pin are inserted into the second location hole and pass through second barrier bed;
Fixture, the fixture is for clamping multiple matrix of samples and making the spray-coating surface of multiple matrix of samples towards same Direction.
2. the coating spraying tooling of the matrix of samples according to claim 1 for the observation of coating material original position stretching, Be characterized in that, the thickness of first fixed section, second fixed section the thickness of thickness and the linkage section be equal to each other, The spray-coating surface is formed in the upper surface of the linkage section;
Each first fixed section is enclosed with the first barrier bed respectively, respectively inserted with first in each first positioning hole Fixed pin, each second fixed section are enclosed with the second barrier bed respectively, in each second location hole respectively inserted with Second fixed pin.
3. the coating spraying tooling of the matrix of samples according to claim 2 for the observation of coating material original position stretching, It is characterized in that, the both ends of first barrier bed bypass two lateral edges of first fixed section respectively and interval is arranged to avoid State the first fixed pin;
The both ends of second barrier bed bypass two lateral edges of second fixed section and interval setting respectively to avoid described the Two fixed pins.
4. the coating spraying tooling of the matrix of samples according to claim 2 for the observation of coating material original position stretching, It is characterized in that, the fixture includes:
Bottom plate;
First side clamping plate and second side clamping plate, first side clamping plate and second side clamping plate are respectively arranged on the phase of the bottom plate To two lateral edges, first side clamping plate, second side clamping plate and the bottom plate limit clip slot, multiple sample bases jointly Second fixed section of body is set in the clip slot.
5. the coating spraying tooling of the matrix of samples according to claim 4 for the observation of coating material original position stretching, It is characterized in that, the height of second side clamping plate is higher than the height of first side clamping plate.
6. the coating spraying tooling of the matrix of samples according to claim 1 for the observation of coating material original position stretching, It is characterized in that, the thickness of first fixed section is equal with the thickness of second fixed section and is less than the thickness of the linkage section Degree, the spray-coating surface are formed in the side surface of the linkage section;
First barrier bed integrally wraps up the first fixed section of multiple matrix of samples, and second barrier bed integrally wraps up multiple Second fixed section of matrix of samples.
7. the coating spraying tooling of the matrix of samples according to claim 6 for the observation of coating material original position stretching, It being characterized in that, the both ends of first barrier bed are rotating around outermost two in excessively multiple first fixed sections, and described first The both ends interval of barrier bed is arranged to allow at least one first fixed section to pass through;
The both ends of second barrier bed are rotating around outermost two in excessively multiple second fixed sections, and second barrier bed Both ends interval be arranged to allow at least one second fixed section to pass through.
8. the coating spraying tooling of the matrix of samples according to claim 6 for the observation of coating material original position stretching, It is characterized in that, further includes:
Multiple first spacer blocks, each first spacer block are set between adjacent first fixed section;
Multiple second spacer blocks, each second spacer block are set between adjacent second fixed section.
9. the coating spraying tooling of the matrix of samples according to claim 8 for the observation of coating material original position stretching, It is characterized in that, multiple first fixed sections share first fixed pin and first fixed pin passes through between multiple described first Spacer block;
Multiple second fixed sections share second fixed pin and second fixed pin passes through multiple second spacer blocks.
10. the coating of the matrix of samples according to claim 1 to 9 for the observation of coating material original position stretching Spraying frock, which is characterized in that first barrier bed and second barrier bed are iron sheet.
CN201910368708.5A 2019-05-05 2019-05-05 Coating spraying tool for sample matrix for in-situ tensile observation of coating material Active CN110029302B (en)

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