CN1037372C - Method and device for detecting membrane/base bonding strength - Google Patents
Method and device for detecting membrane/base bonding strength Download PDFInfo
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- CN1037372C CN1037372C CN91106170A CN91106170A CN1037372C CN 1037372 C CN1037372 C CN 1037372C CN 91106170 A CN91106170 A CN 91106170A CN 91106170 A CN91106170 A CN 91106170A CN 1037372 C CN1037372 C CN 1037372C
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- 239000012528 membrane Substances 0.000 title abstract description 11
- 238000005265 energy consumption Methods 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 9
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- 238000001755 magnetron sputter deposition Methods 0.000 description 9
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Abstract
A method and a device for detecting the membrane/base bonding strength belong to the field of mechanical test. The main characteristic of the invention is based on the discontinuity of the membrane/base interface, the sudden change of the measured energy consumption or tangential force during membrane rupture is used as the criterion of membrane/base stripping, and the respective energy consumption of the membrane and the base is deducted to obtain a binding energy criterion closely related to the interface binding. In order to implement the method, the invention also provides a detection device, and a sample table in the detection device can do lifting motion.
Description
The present invention system belongs to the mechanical test field, and the detection method and the pick-up unit of a kind of film and base material bond strength promptly is provided.
Thin film technique is occupied very consequence in material science and engineering development, all there is the problem that combines with base material in all kinds of retes regardless of itself performance.In order to estimate combining of rete and matrix, many people have done number of research projects, have proposed many method of testings, wherein most popular have acoustic emission cut machine, 3 points, a four-point bending method, indentation method, method etc. is stretched in the position, and above-mentioned these methods exist following problem:
1. because rete disturbs, and film/basic hardness and difference of hardness are disturbed, the rupture of membranes signal is inaccurate; 2. base material influence is difficult for estimating, the rete criterion that comes off is imprecise.In addition, they all depend on mathematical computations, and currently used various computation model is simpler, and only calculate according to the theory of elasticity of integral material, and film/matrix system itself should be considered as a compound system, therefore, obviously can not reflect under the actual conditions mechanical behavior of rete and matrix and in conjunction with situation under the particularly rubbing wear condition.
For addressing the above problem, the present invention improves the existing pendulum impact device that is used for the wearing quality evaluation, provides a kind of film and matrix bond performance are given true detection method and the pick-up unit of estimating thereof.
Detection method provided by the present invention is to utilize the head of drawing of pendulum impact scratching instrument to streak the planar sample that has film with the speed of 1～3m/s, drawing head will contact with film surface successively, enter the top layer, see through film/basic interface, invade base material and behind the bosom, plunder out sample surfaces with opposite process again, in this process, can measure the energy consumption and the maximum shear stress of different invasion degree of depth cuts respectively, uncontinuity based on film/basic interface, the sudden change of tangential force and energy consumption will appear when interfacial failure, obtain the normal force of correspondence when suddenling change and appear the energy that film/basic interface unit length is consumed, the former is defined as critical normal force (Fnc), the latter is called unit length interface energy consumption (δ), and they all can be considered the criterion of interface bond strength.In general, detection method provided by the present invention is mainly based on the 1. uncontinuity at film/basic interface, the criterion that the sudden change that utilizes the energy consumption surveyed or tangential force to occur when rupture of membranes is peeled off as film/base; Deduction film, base material separately energy consumption and obtain one and combine closely-related binding energy criterion with the interface.
The measurement system diagram that is specifically designed to said method provided by the present invention is seen configuration block scheme 1, its principal character is embodied on the liftable sample stage, described sample stage is made up of tangential, normal direction force bearing plate (being semi-girder), support, foil gauge, fastening bolt, upper and lower skewback, base, foil gauge is placed on normal direction, the tangential force bearing plate along level and vertical direction subsides respectively, skewback joins by two inclined-planes and is located among the base of band slide rail up and down, and the moving horizontally of following skewback rotated a post by turning handle and realized.The end of the tup of wherein said pendulum is processed to grooved, and drawing head is triangular blade, and tip is 90 ° of cones, draws head and is fixed in the groove by bolt.
Explain embodiment provided by the present invention in details below in conjunction with accompanying drawing------
A kind of detection method and device thereof of estimating the film bond strength.
Accompanying drawing 1 is the test system configurations block diagram
Accompanying drawing 2 is the synoptic diagram of sample stage
Accompanying drawing 3 is the vertical view of sample stage
Accompanying drawing 4 is a pendulum end sketch
Accompanying drawing 5 is the impact cut and the energy measurement sketch of pendulum
In the accompanying drawing 11 is experiment condition, and 2 is ballistic pendulum, and 3 is energy consumption measurement, and 4 for drawing the back measurement, and 5 is the photoelectricity coupling, and 6 is the tangential force impression, and 7 is the normal force impression, and 8 is the dynamic resistance change, and 9 is storage oscilloscope, and 10 is function recording instrument.
As seen from Figure 2, present embodiment is by side plate 11, guide rail 12, following skewback 13, change and turn round 14, last skewback 15, surface plate 16, sample panel 17, foil gauge 18, limiting plate 19, force transmitting board 20, force plate 21 is formed, Fig. 3 illustrates the sketch in the pendulum end, and 1 is pendulum, and 2 for drawing head, and 3 is fastening bolt, 4 is groove, and as seen from Figure 3, hammer tip portion is processed to grooved, drawing head is triangular blade, and tip is drawn head by being bolted on the pendulum through being processed as 90 ° of cones.Shown in Figure 4 is the impact cut and the energy consumption measurement sketch of pendulum, and 1 among the figure is sample, and 2 is pendulum, and 3 is fork, and 4 for drawing head.
Present embodiment has selected two kinds of films/matrix composite system (dura mater/hard base, dura mater/soft base) and base material to make to impact scratch experiment.
The sample base material is all through grinding, polishing, width are that the variation of 40mm coupons on thickness should be greater than 0.005, dura mater/hard matrix is to select for use through the high-speed steel of standardization modifier treatment to make base material, adopts two kinds of technologies platings of hollow cathode (HCD) and reactive magnetron sputtering (MRS) TIN film; Dura mater/soft matrix is to select for use stainless steel to make base material, adopt the hollow cathode coating process, prepare the TIN film of three kinds of thickness ranges (A, B, C), during test, sample is placed on the force bearing plate, mix up liftable sample stage, make specimen surface slightly contact the basic point that this moment, the clock gauge reading rose as platform with the head tip of drawing of plumbness.Select initial pivot angle also to determine the sweep time of storage oscilloscope according to this, adjust the scanning triggering system, equal altitudes changes rises the sample platform, freely discharge pendulum successively at the parallel impact cut of sample surfaces, obtain the cutting of different length, film/matrix composite is realized film, rupture of membranes respectively and goed deep into the test of different situations such as ground.Note the variation of pivot angle θ in the cut process, tangential force Ft and normal force Fn are at any time to the change curve of t.During energy consumption testing, horizontal fixed is placed the sheet sample under pendulum, carefully regulates the desired height of sample, when pendulum from initial angle θ
0When freely discharging along arc-shaped path of movement, a stroke head that is fixed on hammer tip will impact at specimen surface and mark an arcuate furrow.The energy loss of putting in the cut process can be calculated by the pivot angle difference before and after the cut according to the principle of work and power: A=-E=MgLc (Cos θ
0-Cos θ) A is a sample to the pendulum work done in the formula, and E is the energy change of pendulum, and MgLc is the pendulum constant, and θ is the pivot angle that records behind the cut.
When force measurement and record, tangential force Ft that specimen surface is suffered and normal force Fn can be measured by two groups of individual resistors foil gauges that are arranged on the sample bench, every group comprises that two resistances are the foil gauge that 120 Ω are close to tangential and normal direction force bearing plate both sides, constitute two independently balanced bridges with measuring resistance separately, amplify by a hyperchannel dynamic resistance strain instrument, the microstrain signal that produces when the output force bearing plate is stressed is as the stressed foundation of sample.
Film/the matrix that is obtained by said method and device is that the scratch experiment result is as follows:
One, sign--the sudden change of film/base separation.
Fig. 6 provides homogenous material and impacts the typical tangential force of scratch experiment gained, normal force change curve in time.The Fn-t curve is the grow steadily variation of symmetric form with the cut size, shape broadly similar substantially; The Ft-t curve symmetry is relatively poor and increase shape with trace groove size and change, but peak value still is gradual change trend.
Film/matrix composite system is impacted the observed distinguishing feature of cut is: in the test that uniformly-spaced platform rises, drawn when causing base material to expose thoroughly when rete, significantly changing suddenly all appears in maximum tangential force Ftm, trace groove depth capacity H and energy loss E.These sudden changes are:
1, tangential force sudden change
In serial scratch experiment, changing suddenly appears in the Ft-t curve of saturating film trace, and peak value increment Delta Ftm surpasses more than 3 times of smooth change value, and this moment, normal force Fnm was then still by former regular variation.The power of continuous three cuts on dura mater/hard basic sample and hard base material that provides from Fig. 7 changes Ft-t and Fn-t curve in time, can find out the sudden change of tangential force.Figure 71) for adopting vacuum cathode technology plating TIN/HSS.2) high speed steel substrate.
This tangential force sudden change occurs in the experiment that dura mater/soft matrix is (Fig. 8) too.Among Fig. 8 1) be stainless steel for adopting hollow cathode technology plating TIN film matrix.2) be stainless steel base.
2, the point of trace groove depth becomes
During the saturating film of cut, the depth capacity H of trace groove also occurs one on the basis of original gradual change changes suddenly, and the wide B of maximum trace then still changes by former trend.Fig. 9 provides with the pattern instrument and measures a streak groove H, B and the situation of change that platform uniformly-spaced rises the continuous two streak grooves before the saturating film and saturating film in the experiment successively, and sample is ion plating/high-speed steel base material.
As measure the dark h of trace of film trace groove and the wide b of trace changes with the trace length direction, can find the unexpected increase (Figure 10) of film place trace groove depth.For dura mater/soft matrix is that this phenomenon is more obvious.
3, the sudden change of energy consumption
Sudden change to a certain degree appears in energy loss when saturating film.Under relation that these two kinds of technology dura maters that can provide from Figure 11/hard matrix composite is different length cut l and energy consumption E and the identical test firmly the contrast of base material experimental result find out.A) for adopting vacuum cathode technology plating TIN, b) reactive magnetron sputtering plates TIN, c) high speed steel substrate among Figure 11.
For dura mater/soft matrix system, the sudden change more remarkable (Figure 12) of energy consumption during saturating film, this may be more relevant with film, basic two kinds of material character difference.Figure 12 is vacuum cathode technology plating TIN film a).B) magnetron sputtering TIN.C) high speed steel substrate.
Can infer, to film/when matrix system work impacted cut, a stroke head at first put under from film surface, rete and base material while flow under its effect; Go deep into rete along with drawing head, occur crackle and part fracture in the dura mater; When streaking film/basic interface zone, draw head around rete will be because of a large amount of fractures of the uncontinuity at film/basic interface, base material produces peeling off of serious flow and rete and matrix; Draw head and enter base material, rete and base material plow are together fallen, also may occur fracture in various degree in the hard base material.This process can be summarized with Figure 13 naive model.
At not saturating mem stage, normal force Fn reflects that mainly film/matrix composite is the resistibility that head is drawn to invasion in the top layer, becomes big gradually with the increase of normal load; Tangential force Ft is by character decisions such as the adhesion between plastic flow, slippage and stroke head and the sample of material, frictions, and its value is less; The trace groove mainly is to be squeezed into the result that the sample top layer produces plastic deformation owing to draw head, and h is little for its degree of depth; Energy loss E comprises that flow energy, friction energy and rete internal break can several.
At saturating mem stage, situation is comparatively complicated.At this moment the intension of normal force Fn during still with saturating film is identical, so its value variation is not remarkable; Tangential force Ft reflects then and draws head to the fracture of the plow of rete and base material, rete with fragility loss character such as peel off that its value is obviously uprushed a lot; The formation of trace groove also has the more serious flow and the part fracture of base material except owing to the breaking releasing of rete, and degree of depth h also has a variation of increasing suddenly; Energy consumption E not only comprises separately deformation energy friction energy energy to failure of rete and base material, also comprises film and substrate interface decohesion and the energy that consumes.
Impact in the scratch experiment, because rete, the difference of base material character and the uncontinuity of film/basic combination interface, be reflected in aspects such as power, energy consumption and trace groove depth and produce variation suddenly, can be used as the sign that film/base separates, take this as the standard and explore the quantitative criteria of expressing interface bond strength.
Two, the criterion of film/basic combination
1, normal force criterion Fnc and connotation thereof
Impact in the scratch experiment in the dura mater system, make the graph of a relation of long l of maximum tangential force Ftm and trace and maximum normal force Fn and the long l of trace, the sudden change of Ftm in the time of can finding film intuitively.Select the criterion of the normal force Ftm of Ftm sudden change place correspondence for use, be called critical normal force Fnc as evaluated for film/base binding performance.Figure 14, Figure 15 provide Ftm/, the Fnm-l curve of basic two species complexs of dura mater/hard base, dura mater/soft system, as a comparison, provide the experimental result of two kinds of base materials simultaneously.A) for vacuum cathode technology plating TIN film, b) be reactive magnetron sputtering TIN film among Figure 14, c) be high speed steel substrate.A) for vacuum cathode technology plating TIN film, b) be reactive magnetron sputtering TIN film among Figure 15, c) be high speed steel substrate.
As preceding discussion, it is load-bearing capacity that critical normal force Fnc represents film/matrix composite, similar with the criterion critical load Lc connotation of traditional scarification.
Table 2 provides to be made the Fnc as a result of pendulum impact scratch experiment and carries out the Lc as a result of acoustic emission monitoring scratch experiment with same sample several dura mater systems.
Experimental result shows that pendulum impact scratching instrument and method of testing have higher reliability, is aspect the load-bearing capacity at evaluated for film/matrix, can see queuing and the Lc basically identical of Fnc.This method also has following characteristics:
1) judges that film/matrix is that the standard that lost efficacy of load-bearing capacity is relatively clearer and more definite directly perceived, i.e. rete broken saturating and peeling off;
2) criterion Fnc obtains under the dynamic condition of simulation abrasive particle and impact wear;
3) compare with the acoustic emission monitoring scarification, be not subjected to the influence of fracture in the film.
2, energy criterion--saturating film unit length energy consumption.
Take from right logarithm ln (E * 10
2+ l), make the relation curve of itself and l, can obtain good piecewise linear relationship, Figure 17, Figure 18 are dura mater/hard base, dura mater/soft matrix composite system and two kinds of results that base material is done.Figure 17 a) for vacuum cathode technology plating TIN film, b) is reactive magnetron sputtering TIN film, c) high speed steel substrate.Figure 18 is that vacuum cathode technology is plated TIN film, b) reactive magnetron sputtering TIN film, c) stainless steel base a).
The line segment of describing according to experimental point is got in touch the trace looks again and is observed and make following segmentation:
I is rete and base material flow stage;
II generates and the part brittle failure stage for the rete internal fissure, and single hard base material also some fractures may occur;
III is this Duan Youyi transition for film/matrix, just is each saturating film trace groove; This section does not appear in single base material.
L obtains empirical formula by each section straight line
Ln (E * 10
2+ l)=P
i+ m ', p in (2) formula
iBe slope, m ' is an intercept.Can return out the relational expression of calculating energy consumption by l
M wherein
i=e
M ' i, subscript i represents different phase or different materials.
Make regression curve according to formula (3) on the E-l graph of a relation, former experimental point and the confirmatory experiment point of doing later are very identical with curve, see Figure 11, shown in Figure 12.
Impact cut energy consumption E and generally comprise friction energy-dissipating between stroke head and sample, material flow energy, energy to failure and the new surperficial required energy of material production or the like.Experimental result to film/matrix composite shows, the sudden change of energy loss is arranged when saturating film, this obviously reflects some information of rete and basal body interface binding energy, after the impact cut energy consumption of deduction film material and base material, should be able to obtain and the closely-related energy criterion of interface binding energy.
Consider the film cut as shown in figure 19, l is that trace is long, and l ' is the ground length of exposure, and subscript C and S represent rete and base material respectively.
Use E
RealRepresent film cut actual energy consumption; E
ClAnd E
Cl 'Trace length is respectively l and l ' time and is calculated the energy consumption of gained by formula (3) under the saturating film situation of expression; E
L 'Be illustrated in the long energy consumption of calculating gained for l ' time by formula (3) of trace on the base material; Should have:
E
Real=E
Cl-E
Cl+ E
LrΔ is represented owing to be compound system but not the existing energy difference of the two simple combination system in+Δ (4) formula, obviously and film/basic interface binding energy closely related.Have
Δ=E
Real-E
Cl+ E
Cl '-E
Sl '(5)
Definition
ε＝Δ/l′ (6)
Be illustrated in the criterion that reflects unit length film/basic binding energy in a way, the energy that is exhausted when it destroys corresponding to film/basic combination interface.
Tie up to the experimental data among Figure 11, Figure 17 according to two kinds of technology dura maters/hard matrix composite, tabulation is calculated as follows:
The difference that two kinds of film/matrix composites are film unit length energy consumption ε criterion shows, film/the film-substrate binding strength of hallow cathode deposition, HCD is higher than the film/film-substrate binding strength of magnetron sputtering, this is consistent with two kinds of coating process itself and the present result who generally acknowledges, the mean deviation of the ε that variant film length calculated is less from the same sample, reflects to a certain extent that also the ε criterion comprises an own quantity that characterizes interface bond strength or interface binding energy.
Can draw the following conclusions in sum:
1) new instrument of developing and developing and method of testing can be rubbed to the interface combination of film/matrix composite system Wipe to learn and estimate, validity, reliability and the uniqueness of instrument and method of testing verified in a large amount of work;
2) select tangential force Ftm, the dark H of trace and can E with the catastrophe point on the cut length l change curve, all can be effectively, The foundation of peeling off as film/base delicately;
Normal force when 3) film/base is peeled off can be used as critical normal force Fnc criterion, and characterization of membrane/matrix is bearing capacity;
Unit interfacial surface length energy consumption ε is as the sxemiquantitative criterion of film/film-substrate binding strength, in certain journey during 4) with permeable membrane Reflected film/base binding performance on the degree.
Table 1
| System | Sample | Numbering | Fnc(N) | Lc(N) |
| Dura mater/hard base | HCD-TIN/ high-speed steel MRS-TIN/ high-speed steel | HCD-TIN/HSS MRS-TIN/HSS | 41.0 34.0 | |
| Dura mater/soft base | The HCD-TIN/ stainless steel | A1 A2 B1 B2 C2 C3 C4 | 11.8 13.0 15.1 16.7 18.8 18.3 20.8 | 12.2 14.0 17.3 15.0 13.0 23.1 25.0 |
Table 2
| HCD-TIN/HSS | |||||||||
| l | l′ | E Real | E cl | E sl′ | E cl′ | Δ | s | s | Average deviation |
| mm | mm | J | J | J | J | J | J/mm | J/mm | |
| 15.22 | 6.47 | 0.0988 | 0.05395 | 0.00393 | 0.00338 | 0.0443 | 0.0068 | 0.0058 | 0.0010 17％ |
| 15.35 | 3.05 | 0.0801 | 0.05586 | 0.00169 | 0.00147 | 0.0240 | 0.0078 | ||
| 16.20 | 9.65 | 0.1220 | 0.06988 | 0.01061 | 0.01702 | 0.0585 | 0.0061 | ||
| 16.32 | 5.02 | 0.1028 | 0.07208 | 0.00293 | 0.00253 | 0.0303 | 0.0060 | ||
| 16.63 | 6.30 | 0.1150 | 0.07807 | 0.00377 | 0.00394 | 0.0371 | 0.0059 | ||
| 17.10 | 5.10 | 0.1037 | 0.08798 | 0.00298 | 0.00258 | 0.0153 | 0.0030 | ||
| 17.90 | 6.60 | 0.1400 | 0.10750 | 0.00402 | 0.00449 | 0.0330 | 0.0050 | ||
| MRS-TIN/HSS | |||||||||
| 15.95 | 10.25 | 0.0988 | 0.06845 | 0.01390 | 0.01360 | 0.0301 | 0.0029 | 0.0037 | 0.0005 14％ |
| 16.15 | 5.35 | 0.0938 | 0.07196 | 0.00315 | 0.00249 | 0.0212 | 0.0039 | ||
| 16.40 | 7.30 | 0.1008 | 0.07640 | 0.00424 | 0.00276 | 0.0221 | 0.0032 | ||
| 16.60 | 6.70 | 0.1131 | 0.08012 | 0.00410 | 0.00226 | 0.0311 | 0.0046 | ||
| 16.70 | 7.80 | 0.1149 | 0.08205 | 0.00486 | 0.00382 | 0.0318 | 0.0041 | ||
| 16.80 | 9.75 | 0.1277 | 0.08401 | 0.01136 | 0.00685 | 0.0392 | 0.0040 | ||
| 17.00 | 9.95 | 0.1316 | 0.08806 | 0.01234 | 0.00724 | 0.0384 | 0.0038 | ||
| 17.15 | 12.99 | 0.1474 | 0.09121 | 0.03427 | 0.01914 | 0.0411 | 0.0032 | ||
Claims (2)
1. the detection method of a film/film-substrate binding strength is characterized in that:
(1) utilizes the head of drawing of pendulum impact scratching instrument to streak the planar sample that has film, draw head and contact with film surface successively, enter the top layer, see through film/basic interface, invade base material and behind the bosom, plunder out sample surfaces with opposite process again with the speed of 1～3m/s;
(2) in this process, measure different energy consumption and maximum shear stress of invading degree of depth cuts respectively; Obtain the uncontinuity of the criterion of interface bond strength based on film/basic interface, the tangential force that utilization occurs when interfacial failure and the sudden change of energy consumption are obtained the normal force of correspondence when suddenling change and are appeared film/energy that basic interface unit length is consumed and estimate the bond strength of film and base material.
2. the pick-up unit of the film/film-substrate binding strength of the described method of special-purpose claim 1, it is made up of fuselage, sample stage, pendulum, angle control frame, index dish, clock gauge, and the pick-up unit of evaluation film and substrate interface bond strength is characterized in that:
(1) described sample stage is to be made up of tangential, normal direction force bearing plate, support, fastening bolt, foil gauge, upper and lower skewback, base, wherein foil gauge pastes respectively along support level, vertical direction and is placed on normal direction, the tangential force bearing plate, upper and lower skewback joins by two inclined-planes and is located in the base that has slide rail, and following skewback can come rotating threaded shaft to move horizontally by turning handle;
(2) end of the tup of described pendulum is processed to grooved, and drawing head is triangular blade, and tip is 90 ° of cones, draws head by being bolted in the groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91106170A CN1037372C (en) | 1991-07-01 | 1991-07-01 | Method and device for detecting membrane/base bonding strength |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91106170A CN1037372C (en) | 1991-07-01 | 1991-07-01 | Method and device for detecting membrane/base bonding strength |
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| CN1068425A CN1068425A (en) | 1993-01-27 |
| CN1037372C true CN1037372C (en) | 1998-02-11 |
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| CN91106170A Expired - Fee Related CN1037372C (en) | 1991-07-01 | 1991-07-01 | Method and device for detecting membrane/base bonding strength |
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| CN104880407B (en) * | 2015-06-02 | 2018-01-23 | 西南交通大学 | Saliva adsorbed film and the detection method of enamel surface adhesion strength |
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| CN109115601B (en) * | 2017-06-26 | 2021-02-12 | 上海斯纳普膜分离科技有限公司 | Method for detecting welding strength of flat filter membrane element |
| CN108107055B (en) * | 2017-11-20 | 2019-11-15 | 珠海格力电器股份有限公司 | Control method and device of intelligent power module, storage medium and processor |
| CN108562538A (en) * | 2018-03-09 | 2018-09-21 | 中路高科(北京)公路技术有限公司 | A kind of asphalt material bonding force test method |
| CN112945760B (en) * | 2021-02-03 | 2022-11-22 | 中国科学院力学研究所 | Simple pendulum type high-speed impact scratch test device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078878U (en) * | 1990-08-13 | 1991-06-12 | 中国科学院固体物理研究所 | Instrument for measuring film adhesive force by scratch method |
-
1991
- 1991-07-01 CN CN91106170A patent/CN1037372C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2078878U (en) * | 1990-08-13 | 1991-06-12 | 中国科学院固体物理研究所 | Instrument for measuring film adhesive force by scratch method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196824A (en) * | 2012-01-06 | 2013-07-10 | 中国人民解放军装甲兵工程学院 | Remanufactured part coat bonding strength detector |
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| Publication number | Publication date |
|---|---|
| CN1068425A (en) | 1993-01-27 |
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