CN110940585A - Method for measuring interface bonding force of composite material reinforcement and matrix - Google Patents

Method for measuring interface bonding force of composite material reinforcement and matrix Download PDF

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CN110940585A
CN110940585A CN201911267797.0A CN201911267797A CN110940585A CN 110940585 A CN110940585 A CN 110940585A CN 201911267797 A CN201911267797 A CN 201911267797A CN 110940585 A CN110940585 A CN 110940585A
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reinforcement
matrix
bonding force
composite material
thin sheet
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张勇
闫薛卉
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University of Science and Technology Beijing USTB
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University of Science and Technology Beijing USTB
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00—Investigating materials by mechanical methods
    • G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0676—Force, weight, load, energy, speed or acceleration

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

The invention provides a method for measuring the interface bonding force of a composite material reinforcement and a matrix, which relates to the technical field of performance characterization of composite materials, and is characterized in that the interface shear strength of the reinforcement separated from the matrix is directly obtained, the interface bonding force of the reinforcement and the matrix is obtained through formula calculation, and the accuracy and the simplicity of the measurement of the interface bonding force of the composite material can be improved; the method comprises the following steps: s1: cutting the composite into sheets; s2, preprocessing the thin sheet to make the surface of the thin sheet smooth; s3, placing the slice in an interlayer of an interlayer workbench, pressing out the reinforcement in the slice from the matrix by using a nano indentation pressure head, and measuring the interface shear strength of the reinforcement separated from the matrix by using a sensor; s4, calculating the interface bonding force of the composite material reinforcement and the matrix according to a formula; the technical scheme provided by the invention is suitable for the process of measuring the interface bonding force of the composite material reinforcement and the matrix.

Description

Method for measuring interface bonding force of composite material reinforcement and matrix
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of performance characterization of composite materials, in particular to a method for measuring the interface bonding force of a composite material reinforcement and a matrix.
[ background of the invention ]
The light weight of the device is one of the main solutions to the three problems of energy, environment and safety, the research and development and application of the light composite material are important ways for realizing the light weight, and the research and development of the composite material provide a feasible method for the research of the light weight of the material.
The composite material is combined with the reinforcement, and the strength is further improved by combining the composite material with the reinforcement on the basis of keeping the advantages of the matrix alloy, so that the integral specific strength and specific modulus of the alloy material are improved, and the composite material has wide application prospects in the fields of consumer electronics, medical instruments, automobiles and the like.
But the bonding force between the fiber reinforcement and the matrix can only be judged by microscopic characterization, and the direct bonding force of the interface cannot be directly obtained, so that the construction of the structure-performance relationship cannot be realized. Meanwhile, a metal matrix composite characterization and analysis device platform is lacked in China at present, the measurement result is inaccurate, and the steps are complicated. Therefore, the development of an accurate and concise method for measuring the binding force of the composite material is an urgent need.
Accordingly, there is a need to develop a method for determining the interfacial bonding strength of a composite reinforcement and a substrate that addresses the deficiencies of the prior art to address or mitigate one or more of the above-mentioned problems.
[ summary of the invention ]
In view of the above, the invention provides a method for measuring the interfacial bonding force between a reinforcement and a substrate of a composite material, which directly obtains the interfacial shear strength of the reinforcement separated from the substrate, calculates the interfacial bonding force between the reinforcement and the substrate by a formula, and can improve the accuracy and simplicity of the measurement of the interfacial bonding force of the composite material.
In one aspect, the invention provides a method for measuring the interfacial bonding force between a reinforcement and a substrate of a composite material, which is characterized in that the composite material comprises the reinforcement and the substrate, wherein the reinforcement is arranged in the substrate;
the steps of the assay method include:
s1: cutting the composite into sheets;
s2, preprocessing the thin sheet to make the surface of the thin sheet smooth;
s3, placing the slice in an interlayer of an interlayer workbench, pressing out the reinforcement in the slice from the matrix by using a nano indentation pressure head, and measuring the interface shear strength of the reinforcement separated from the matrix by using a sensor;
s4, calculating the interface bonding force of the composite material reinforcement and the matrix according to a formula;
the formula is: p ═ L × h × τ;
wherein L is the circumference of the reinforcement body, mm; h is the thickness of the sheet, mm; tau is the average interface shear strength of the reinforcement body separated from the matrix, MPa; p is the interface bonding force between the composite material reinforcement and the matrix, and N.
The above-described aspect and any possible implementation further provides an implementation in which the average interfacial shear strength is an average of at least six interfacial shear strengths.
The above-described aspects and any possible implementations further provide an implementation in which the thickness of the lamina is less than a maximum working displacement of an indenter of a nanoindentation.
The above aspect and any possible implementation manner further provide an implementation manner, and the thickness of the thin sheet is 300-500 μm.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the thin sheet is a circular thin sheet with a diameter of 10-15 mm.
The above aspect and any possible implementation manner further provide an implementation manner, where the sheet is a circular sheet, the calculation formula of the interfacial bonding force is P ═ pi × d × h × τ;
wherein pi is a circumference ratio; d is the diameter of the circular slice, mm; h is the thickness of the round slice, mm; tau is the average interface shear strength of the reinforcement body separated from the matrix, MPa; p is the interface bonding force between the composite material reinforcement and the matrix, and N.
The above aspects and any possible implementations further provide an implementation, and the pre-processing includes grinding, polishing, and cleaning.
The above aspects and any possible implementation manners further provide an implementation manner, and the cleaning is specifically that under an ultrasonic condition, the slices are sequentially placed into acetone, alcohol or deionized water for cleaning, and the cleaning time is 5 min.
The above-described aspects and any possible implementations further provide an implementation in which the nanoindentation indenter is multiple and multiple indenters work in parallel to simultaneously extrude multiple reinforcement members from the same or different substrates.
The above-described aspects and any possible implementations further provide an implementation in which the plurality of sensors are in one-to-one correspondence with the indenters for detecting the interfacial shear strength when the corresponding indenter presses the reinforcement member out of the substrate.
The aspect and any possible implementation described above further provides an implementation in which the load of the indenter is 600mN or less.
Compared with the prior art, the invention can obtain the following technical effects: the determination method combines the nano indentation to extrude the reinforcement from the matrix, directly obtains the interface shear strength of the reinforcement separated from the matrix, and obtains the interface bonding force of the reinforcement and the matrix through formula calculation; the accuracy and the simplicity of the interface bonding force of the composite material are improved; the invention preprocesses the round slice, reduces the surface roughness of the round slice, leads the round slice to be jointed with the workbench of the nano indentation and ensures the accuracy of the measuring result.
Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a process for cutting a cylindrical composite material into round sheets and a cross-sectional view of the round sheets according to one embodiment of the present invention;
FIG. 2 is a flow chart for determining the shear strength of an interface of an reinforcement member off a substrate using a nanoindenter, as provided by one embodiment of the present invention;
FIG. 3 is a schematic diagram of a high throughput assay method for multi-channel parallel characterization according to an embodiment of the present invention.
Wherein, in the figure:
1-cylinder composite; 2-round flakes; 3-a substrate; 4-a reinforcement; 5-view window; 6-a workbench; 7-sensor.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Aiming at the defects of the prior art, the invention provides a method for measuring the interface bonding force of a composite material reinforcement and a matrix.
The composite material comprises a reinforcement and a matrix; the reinforcement is dispersed in the matrix.
The method for measuring the interface bonding force of the composite material reinforcement and the matrix comprises the following steps:
(1) cutting the composite material into round slices for later use;
the thickness of the round slice is 300-500 μm, preferably 350-450 μm; the diameter is 10-15 mm;
the thickness of the circular sheet is related to the working displacement of a pressure head of the nano indentation, and if the maximum working displacement of the pressure head of the nano indentation is 500 microns, the thickness of the circular sheet is required to be smaller than the maximum working displacement of the nano indentation pressure head if the nano indentation pressure head is expected to eject all the reinforcement bodies in the circular sheet, so that the nano indentation pressure head can be ensured to completely enter the circular sheet in a working displacement interval and eject the reinforcement bodies;
(2) pretreating the round slice;
the pretreatment comprises grinding, polishing and cleaning;
the polishing requirement can ensure that the round slices can not be scratched;
polishing requires that the circular sheet be free from scratches by optical microscopy;
the cleaning reagent is acetone, alcohol or deionized water in sequence; the washing time of each reagent is preferably 5 min; in the present invention, the washing is preferably performed under ultrasonic conditions;
the pretreatment of the invention can reduce the surface roughness of the round slice, so that the round slice is well jointed with a subsequent nanoindentation workbench, the accuracy of the shear strength is improved, and the accuracy of the binding force is further improved;
(3) pressing out the reinforcement in the circular slice obtained after pretreatment from the matrix by using a pressure head of nano indentation to obtain the interface shear strength of the reinforcement separated from the matrix, wherein each circular slice obtains at least six interface shear forces of the reinforcement separated from the matrix at different positions; obtaining the interface bonding force of the composite material reinforcement and the matrix by using a formula;
the formula is as follows: p ═ pi × d × h × τ;
wherein pi is a circumference ratio; d is the diameter of the circular slice, mm; h is the thickness of the round slice, mm; tau is the interface shear strength of the reinforcement body separated from the matrix, MPa; p is the interface bonding force between the composite material reinforcement and the matrix, and N;
the nano-indentation indenter comprises a plurality of nano-indentation indenters which work in parallel. And a plurality of nano indentation pressure heads are measured simultaneously, so that the determination efficiency is improved.
The circular sheet comprises a matrix 3 and reinforcement members 4; a plurality of reinforcing bodies 4 are dispersedly arranged in the matrix 3, and the reinforcing bodies penetrate through the upper surface and the lower surface of the matrix; the preferable material of the reinforcement 4 is carbon fiber; the material of the substrate 3 comprises one or more of traditional metal materials such as aluminum, magnesium, steel and titanium.
In the present invention, the means for forcing the reinforcement in the circular sheet out of the matrix is preferably a nanoindenter; the interface shear strength of the reinforcement body separated from the matrix can be obtained through a sensor 7 arranged in the nanoindenter. The workbench of the nanoindentor is preferably an interlayer annular workbench 6; the center of the interlayer annular workbench is preferably a hollow circle, and the hollow circle is the object viewing window 5.
The method for determining the interfacial bonding force between the reinforcement and the matrix of the composite material will be described with reference to fig. 1 and 2 and the nanoindenter used therein.
FIG. 1 is a schematic diagram of a process for cutting a cylindrical composite material into round sheets and a cross-sectional view of the round sheets. Referring to FIG. 1, the measurement method is to cut a cylindrical composite material into circular thin pieces; observe the cross-sectional view of a circular slice, where: the black dots in the circular sheet represent reinforcement fibers; the rest part is a substrate.
FIG. 2 is a flow chart for determining the interfacial shear strength of reinforcement release from a substrate using a nanoindenter. As can be seen from fig. 2: placing the round slice in the middle interlayer of an interlayer annular workbench of a nano-indenter; aligning a reinforcing body fiber of the circular sheet to the center of a hollow circle of the interlayer annular workbench, namely the center of the object viewing window 5; and under the action of the lower pressure F, aligning the pressure head of the nanoindentor with the reinforcement and pressing down, so that the reinforcement in the circular sheet is separated from the matrix. This process enables the interfacial shear strength of the matrix detachment reinforcement to be obtained by the pressure sensor 7. In the present invention, the force F is preferably 600mN or less for the load of the nanoindenter, which is suitable for most composite materials, in particular for fiber-reinforced or nanoparticle-reinforced composite materials. In the present invention, at least six different positions of the interfacial shear strength of the reinforcement off the matrix are obtained for each lamella, and the average interfacial shear strength of the lamella is calculated by removing the invalid value or the abnormal value. In order to obtain the interface shear strength of different positions of a circular slice, the positions of the circular slices in the interlayer annular workbench are adjusted, so that the reinforcements at different positions of the circular slices are aligned to the object viewing window and the center of the working window of the interlayer annular workbench, and the interface shear strength is measured.
In order to improve the characterization rate of the composite material, the invention preferably adopts a multichannel parallel characterization high-throughput assay method, and fig. 3 is a schematic diagram of the multichannel parallel characterization high-throughput assay method. The specific steps of the high throughput assay described below in connection with FIG. 3 are preferably: the pressure heads of the nano-indenter adopt an array design, a plurality of circular sheets are simultaneously placed on parallel interlayer annular workbenches, the parallel pressure heads simultaneously perform operation of extruding the reinforcing body out of the matrix on the circular sheets, a plurality of sensors perform parallel data collection, and finally the interface shear strength of the circular sheets is obtained under the condition of single operation.
In the present invention, when the plurality of circular sheets are the same composite material: respectively placing a plurality of circular sheets on parallel interlayer annular workbenches; the object viewing window of each interlayer annular workbench is aligned with the reinforcing bodies at different positions of the circular sheet, and under the condition, the shearing strength of a plurality of groups of interfaces of the same material can be obtained at a time through one-time operation.
In the present invention, when the circular sheets are different types of composite materials: a plurality of circular thin sheets are arranged on parallel interlayer annular workbenches; after the first test point of each circular slice is selected according to the actual situation, the workbench works in parallel to complete one test of each circular slice; subsequently, adjusting the position of the circular slice, selecting the next measuring point, and repeating the steps; the number of repetitions of the basic steps is chosen according to the specific experimental conditions.
Example 1:
cutting the composite material (the reinforcement is carbon fiber, the matrix is AlLiMnZnCu medium entropy alloy, the mass percentage content of the reinforcement is 50%) into circular sheets with the thickness of 350 mu m and the diameter of 10 mm;
polishing the round slice until no scratch can be seen by naked eyes, polishing the round slice by using a polishing machine until no scratch can be seen by an optical microscope, and then sequentially ultrasonically cleaning the round slice by using acetone, alcohol and deionized water for 5 min;
placing the circular slice obtained by pretreatment in an interlayer of an interlayer annular workbench, aligning an enhanced fiber in the circular slice to the center of a hollow circle of the interlayer annular workbench, namely a viewing window and the center of a working window, ejecting the fiber from a matrix through the working window by using a nano indentation pressure head, and detecting the interface shear force of the fiber separated from the matrix through a sensor; in order to ensure the accuracy of test data, moving the circular sheets, taking a plurality of points at intervals on each circular sheet, removing an invalid value or an abnormal value, and averaging to obtain the interface shear strength of the circular sheets, so as to obtain the interface shear strength;
and (3) calculating the interfacial bonding force of the composite material by using a formula P ═ pi × d × h × τ.
Comparative example 1:
taking the carbon fiber reinforced resin which is common in the market as an example; the strength of the general interface phase is measured by methods such as interlaminar shear strength, tensile strength, impact strength and the like of the composite material on a macroscopic scale, and the mechanical properties of the composite material cannot be directly obtained;
microscopically, interfacial shear strength can be used to measure the interfacial adhesion of a composite material. Such as: single fiber drawing method: the basic principle is that the single fiber is embedded in the matrix resin liquid drop, the single fiber is pulled out from the micro liquid drop after solidification, and the interface shear strength can be obtained through the force required by pulling out. However, the IFSS tested by this method is subject to errors due to the pull-out speed, and the interfacial bonding force was obtained by the above method for the composite material of example 1. Meanwhile, for the metal matrix composite material, the method has low practical value and is not easy to realize.
The determination method combines the nano indentation to extrude the reinforcement from the matrix, directly obtains the interface shear strength of the reinforcement separated from the matrix, and obtains the interface bonding force of the reinforcement and the matrix through formula calculation; the accuracy and the simplicity of the interface bonding force of the composite material are improved. Meanwhile, the circular thin slice is preprocessed, the surface roughness of the circular thin slice is reduced, the circular thin slice is attached to a workbench of the nano indentation, and the accuracy of a measuring result is ensured.
The method for measuring the interfacial bonding force between the composite material reinforcement and the matrix provided by the embodiment of the application is described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
As used in the specification and claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims (10)

1. A method for measuring the interface bonding force of a composite material reinforcement and a matrix comprises the reinforcement and the matrix, wherein the reinforcement is arranged in the matrix; it is characterized in that the preparation method is characterized in that,
the steps of the assay method include:
s1: cutting the composite into sheets;
s2, preprocessing the thin sheet to make the surface of the thin sheet smooth;
s3, placing the thin sheet in an interlayer of a interlayer type workbench, pressing out the reinforcement in the thin sheet from the substrate by using a pressure head of a nano indentation technology, and measuring the interface shear strength of the reinforcement separated from the substrate by using a sensor;
s4, calculating the interface bonding force of the composite material reinforcement and the matrix according to a formula;
the formula is: p ═ L × h × τ;
wherein L is the circumference of the reinforcement body and is mm; h is the thickness of the sheet, mm; tau is the interface shear strength of the reinforcement body separated from the matrix, MPa; p is the interface bonding force between the composite material reinforcement and the matrix, and N.
2. The method of claim 1, wherein the interfacial bond strength is an average of at least six interfacial shear strengths.
3. The method of claim 1, wherein the thickness of the thin sheet is less than the maximum working displacement of the indenter.
4. The method for measuring the interfacial bonding force between the composite reinforcement and the matrix according to claim 3, wherein the thickness of the thin sheet is 300-500 μm.
5. The method for measuring the interfacial bonding force of the composite material reinforcement and the matrix according to claim 4, wherein the thin sheet is a circular thin sheet with a diameter of 10-15 mm.
6. The method for measuring the interfacial bonding force between a composite reinforcement and a matrix according to claim 5, wherein when the thin sheet is a circular thin sheet, the calculation formula of the interfacial bonding force is P ═ pi × d × h × τ;
wherein pi is a circumference ratio; d is the diameter of the circular slice, mm; h is the thickness of the round slice, mm; tau is the average interface shear strength of the reinforcement body separated from the matrix, MPa; p is the interface bonding force between the composite material reinforcement and the matrix, and N.
7. The method for measuring the interfacial bonding force of the composite reinforcement and the matrix according to claim 6, wherein the pretreatment comprises grinding, polishing and cleaning;
the cleaning specifically comprises the following steps: and under the ultrasonic condition, sequentially putting the slices into acetone, alcohol or deionized water for cleaning for 5 min.
8. The method of claim 1, wherein the number of indenters is multiple and multiple indenters are operated in parallel to simultaneously extrude multiple reinforcements from the same or different substrates.
9. The method of claim 8, wherein the plurality of pressure sensors are arranged in a one-to-one correspondence with the indenters for detecting the interfacial shear strength when the corresponding indenters press the reinforcement member out of the substrate.
10. The method for measuring the interfacial bonding force of the composite reinforcement and the matrix according to claim 1, wherein the load of the indenter is less than or equal to 600 mN.
CN201911267797.0A 2019-12-11 2019-12-11 Method for measuring interface bonding force of composite material reinforcement and matrix Pending CN110940585A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546797A (en) * 1995-04-11 1996-08-20 The United States Of America As Represented By The Secretary Of The Navy Constant-depth scratch test for the quantification of interfacial shear strength at film-substrate interfaces
CN101477009A (en) * 2009-01-21 2009-07-08 哈尔滨工业大学 Method for testing boundary strength between fiber bundle and substrate of carbon fiber reinforced carbon materials
CN101706397A (en) * 2009-11-30 2010-05-12 哈尔滨工业大学 Method for testing fiber/matrix interface shear strength of C/C composite material
CN105547851A (en) * 2015-12-09 2016-05-04 哈尔滨工业大学 Compact device for testing interfacial shear strength of composite material and method for testing interfacial shear strength of composite material through device
DE102015210604A1 (en) * 2015-06-10 2016-12-15 Bauhaus-Universität Weimar Method for determining material properties

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5546797A (en) * 1995-04-11 1996-08-20 The United States Of America As Represented By The Secretary Of The Navy Constant-depth scratch test for the quantification of interfacial shear strength at film-substrate interfaces
CN101477009A (en) * 2009-01-21 2009-07-08 哈尔滨工业大学 Method for testing boundary strength between fiber bundle and substrate of carbon fiber reinforced carbon materials
CN101706397A (en) * 2009-11-30 2010-05-12 哈尔滨工业大学 Method for testing fiber/matrix interface shear strength of C/C composite material
DE102015210604A1 (en) * 2015-06-10 2016-12-15 Bauhaus-Universität Weimar Method for determining material properties
CN105547851A (en) * 2015-12-09 2016-05-04 哈尔滨工业大学 Compact device for testing interfacial shear strength of composite material and method for testing interfacial shear strength of composite material through device

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