15 results about "Nanoindenter" patented technology

Provided is a laminate having a low refractive index and excellent mechanical strength. This laminate (10) comprises a void layer (11) and an adhesive layer (12), the adhesive layer (12) being directly laminated on one or both surfaces of the void layer (11), the refractive index of the void layer (11) being 1.30 or less as measured in the state of the laminate (10), the nanoindentation hardness being 0.5 MPa or more as measured by pressing an indenter into the adhesive layer (12) by 2000 nm using a nanoindenter, and the refractive index of the void layer (11) being 1.30 or less as measured in the state of the laminate (10). The peel strength between the void layer (11) and the adhesive layer (12) measured using a tensile testing machine at a tensile speed of 0.3 m / min is 3 N / 25 mm or more.

The utility model discloses a kind of physiological solution micro-sample mechanical property testing devices of circulation, including nanoindenter, control panel is arranged on the lateral wall of the nanoindenter, the lateral surface of the nanoindenter is provided with side door and can be closed and opened, physiological solution tank is placed in the inside of the nanoindenter and can be taken out from side door, sink is embedded on the workbench surface of the nanoindenter, test assembly is provided in the inside of the nanoindenter and is communicated with physiological solution tank. The utility model belongs to micro-sample test technical field, specifically solve the mechanical indentation test of micro-sample in prior art by means of nanoindenter, lack of testing in circulating physiological solution to micro-sample, there is a kind of physiological solution micro-sample mechanical property testing device of circulation to the limitation problem of existing technology.

The invention discloses a system and a method for characterizing the performance of an interface transition zone of an asphalt mixture, and belongs to the field of material performance testing methods. The characterization system comprises a nanoindenter and a Raman spectrometer which are electrically connected through a control unit, a semi-transparent and semi-reflective mirror is arranged between the nanoindenter and the Raman spectrometer, and light scattered by the Raman spectrometer through the semi-transparent and semi-reflective mirror passes through the position of an indenter of the nanoindenter. The method for characterizing the ITZ performance of the asphalt mixture provided by the invention can achieve the effect of synchronously detecting the mechanical properties and chemical properties of ITZ.

This invention discloses a microscopic method for assessing coal and gas outburst risk based on nanoindentation creep, relating to the field of coal and gas outburst technology. The method includes: sampling and performing gridded nanoindentation testing on target soft coal layers to obtain test data for the soft coal layer samples; analyzing the data obtained through the load-bearing function of a nanoindenter to obtain the creep deformation curve of the coal body; calculating microscopic creep parameters based on the creep deformation curve, and constructing a quantitative relationship between the microscopic creep parameters and macroscopic outburst risk indicators; and making a judgment based on the quantitative relationship between the microscopic creep parameters and macroscopic outburst risk indicators. When the coal seam data meets the preset conditions in the quantitative relationship between the microscopic creep parameters and macroscopic outburst risk indicators, the target coal seam area is judged to have a high outburst risk. This invention enables early prevention and control of mine dynamic disasters and improves the level of safe and efficient coal mine production.

The application discloses a method for regulating the rejuvenation degree by low-temperature thermal cycle treatment, and steps of the method comprise the following: preparing a La-based amorphous alloy sample with a smooth mirror surface; performing low-temperature thermal cycle treatment on the sample, first placing the sample in liquid nitrogen (77K) and keeping the sample in the liquid nitrogen for a period of time, then quickly transferring the sample to boiling water and keeping the sample in the boiling water, and the time of the two processes is equal, and the total time is one cycle period, the time of each single cycle is controlled and the total keeping time is kept the same to obtain the sample after different cycle frequencies; analyzing the sample after the cycle by means of a nanoindenter, a differential scanning calorimeter and a dynamic thermal mechanical analyzer to obtain hardness, activation volume, relaxation enthalpy and beta relaxation activation energy respectively. The sample with different rejuvenation degrees can be obtained by regulating the cycle frequency, and the rejuvenation degree can reach the maximum at a certain cycle frequency, and the application also provides a new idea and scheme for regulating the rejuvenation degree of the amorphous alloy and improving the mechanical properties of the amorphous alloy.

To provide a coating material suitable for food and drink cans, capable of forming a coating film having good abrasion resistance, processing adhesion and hardening property. [Solution] A can coating that satisfies (i) and (ii) in the following nano-scratch test. <Nano scratch test> The can paint was applied to the body of an aluminum can, baked at 180°C for 52 seconds and 200°C for 2 minutes, and the coating surface of the resulting sample was measured at 23°C using a nanoindenter. (i) the average coefficient of friction is 2 or less, and (ii) the maximum scratch size is 120 nm or less.

The present invention provides a polishing blank assembly that mitigates vibrations generated during processing by a CAD / CAM processing machine and has excellent processing accuracy. The present invention pertains to a polishing blank assembly which comprises a part to be processed, a holding part, and an adhesive composition, and which satisfies the following conditions (1) and / or (2): (1) the loss coefficient (tan [delta]) of a cured product of the adhesive composition at 20 DEG C in an ultra-micro indentation test (nanoindenter) is 0.70 or less; and (2) the ratio (X1 / Y1) of the peel adhesive strength (X1) to the fracture strain (Y1) in a compression shear adhesive test at 20 DEG C of the part to be processed and the holding part is 1200 N / mm or less.

The application relates to the technical field of heat dissipation materials, and discloses a precision die cutting and detection method for a heat dissipation material, which comprises the following steps: S1, digital modeling of material microstructure and mechanical properties: sampling the incoming material batch, observing the multilayer stacking structure of the material batch by using a scanning electron microscope, measuring the approximate value of the interlayer binding energy, and obtaining the elastic modulus, yield strength and brittle-ductile transition critical thickness in different directions by using a nanoindenter and a micro tensile testing machine; the four core strategies of material digitization, process self-adaptation, process active control and detection intelligentization are used in the application scheme, so that the precision die cutting of graphite sheets is changed from needing the processing experience of workers to a predictable and optimized precision manufacturing engineering driven by a system, and the application scheme is particularly suitable for the fields of 5G equipment, ultra-thin consumer electronics, high-reliability power devices and the like which have extremely high requirements for heat dissipation components.

Provided is an adhesive film formed from a first layer including a first main surface and a second layer provided on the first main surface. The first layer is a crosslinked layer having a heat collapse residual ratio of 60% or more after a load of 0.1 MPa is applied at 200°C and held for 1 minute. In a DSC curve of the first layer, a first melting peak is present between 115°C and 155°C, inclusive, and a second melting peak is present between 30°C and 70°C, inclusive. The DSC curve is obtained by measuring in the range from 0°C to 200°C at a temperature rise rate of 10°C / minute using a differential scanning calorimeter. The elastic modulus E1 of the first layer at 25°C is between 600 MPa and 1000 MPa, inclusive, the elastic modulus E1 being measured using a nanoindenter. The second layer is an acid-modified polyolefin layer.

The invention discloses a method for evaluating the thickness of a damaged layer on a gallium nitride grinding and polishing surface based on a nano-scratch method. The method comprises the following steps: acquiring abrasive particle scratch parameters of a single abrasive particle in a polishing solution; wherein the polishing solution is used for polishing a gallium nitride wafer; determining nano-scratch parameters of the nano-indenter according to the obtained abrasive particle scratch parameters; and preparing a scratch in a corresponding state on the surface of the small-size gallium nitride wafer according to the determined nano scratch parameter by using a nanoindenter, so as to evaluate the thickness of the damaged layer on the grinding and polishing surface of the gallium nitride wafer. According to the method, a large number of actual process parameters are mapped into single experiment parameters of the nano scratches, and the purpose of simulating a large process through small samples is achieved. Furthermore, the damage state of the whole wafer can be evaluated only through a small-size sample (10 * 10mm < 2 > magnitude). Furthermore, the evaluation method provided by the invention is suitable for rapid evaluation of different polishing processes (different particle sizes, rotating speeds and time).

To provide a laminated body in which deep drawing suppresses indentation at the corners and results in a clearly defined ridge line. [Solution] One aspect of the present disclosure is a laminate having a laminated structure comprising a base layer, a first adhesive layer, a barrier layer, and a sealant layer in this order, wherein the amount of plastic deformation of the base layer is 30 nm or more, and the amount of plastic deformation of the base layer is measured using a nanoindenter under the condition of a maximum load of 100 μN.

This invention discloses a microscopic method for assessing coal and gas outburst risk based on nanoindentation creep, relating to the field of coal and gas outburst technology. The method includes: sampling and performing gridded nanoindentation testing on target soft coal layers to obtain test data for the soft coal layer samples; analyzing the data obtained through the load-bearing function of a nanoindenter to obtain the creep deformation curve of the coal body; calculating microscopic creep parameters based on the creep deformation curve, and constructing a quantitative relationship between the microscopic creep parameters and macroscopic outburst risk indicators; and making a judgment based on the quantitative relationship between the microscopic creep parameters and macroscopic outburst risk indicators. When the coal seam data meets the preset conditions in the quantitative relationship between the microscopic creep parameters and macroscopic outburst risk indicators, the target coal seam area is judged to have a high outburst risk. This invention enables early prevention and control of mine dynamic disasters and improves the level of safe and efficient coal mine production.

An electrophotographic member including a core shaft and an elastic layer on an outer circumference of the core shaft, the elastic layer containing a polyurethane elastomer, the polyurethane elastomer containing a matrix and domains dispersed in the matrix, a parameter A and a parameter B satisfying a relationship of A < B, wherein the parameter A represents a viscoelastic term of each of the domains and the parameter B represents a viscoelastic term of the matrix. The micro rubber hardness of the elastic layer at a temperature of 23°C is 20 or more and 50 or less, and in an indentation test of the elastic layer at 23°C using a nanoindenter, wherein the test includes pressing into the elastic layer with a Vickers indenter at a loading rate of 10 mN / 30 sec, holding at a load of 10 mN for 60 seconds, and then unloading, the strain after unloading for 5 seconds is 1 µm or less.

The invention provides a preparation method and application of a high-strength TiB2 ceramic phase, and belongs to the technical field of material science. According to Ti and B elements contained in the steel matrix, Ti and B atoms are separated out from the iron matrix due to solubility reduction in the solidification and cooling process, are gathered through atom diffusion and grow into TiB according to a hexagonal crystal structure, and the TiB and the steel matrix interface are tightly combined in the self-generation forming mode, so that the TiB and the steel matrix interface are tightly combined, and the TiB and the steel matrix interface are tightly combined. The problems of weak interface bonding and easy generation of stress concentration in the traditional additional particle reinforcement process are avoided, the TiB reaches the theoretical strength and super-large elastic strain, and in addition, the characteristics of high component uniformity and controllable growth rate of the eutectic reaction are utilized, so that the TiB is controlled at the micron level, the machining requirement is met, and the production cost is reduced. And preparing the pressure head to be used in a nanoindenter.

The application provides a rock microcosmic dynamic stress deformation behavior prediction method and system, relates to the technical field of rock physics research, and comprises the following steps: collecting backscattered electron images corresponding to rock samples in a research area; demarcating a plurality of microzones on the surface of the rock samples based on the backscattered electron images, and acquiring pore structure characterization parameters corresponding to the microzones; for the demarcated same microzone, respectively controlling an in-situ measurement experimental device to measure intrinsic elastic modulus of different rock internal fabrics in the microzone, and controlling a nanoindenter to perform a cyclic load indentation experiment on the microzone to obtain microcosmic deformation mechanical parameters corresponding to the microzone; and predicting microcosmic dynamic stress deformation behavior of the rock samples based on the pore structure characterization parameters, the intrinsic elastic modulus and the microcosmic deformation mechanical parameters corresponding to the microzone. The application establishes a spatial corresponding relationship between the pore structure and the intrinsic elastic modulus and the microcosmic deformation mechanical parameters, and thus significantly improves the accuracy of the rock microcosmic dynamic stress deformation behavior.