51 results about "Energy Dispersive Spectrometer" patented technology

The invention researches a novel process for Zr-Si-Al ternary inorganic coating for rutile titanium dioxide by using a sol-gel method. Through a uniform test design, the influences of various factors to the ternary inorganic coating performance of the rutile titanium dioxide are researched by a system, and the ternary inorganic coating effect of the rutile titanium dioxide is inspected through testing measures such as Nano-ZS, a Fourier infrared spectrometer (FT-IR), a scanning electron microscope (SEM), a transmission electron microscope (TEM), an energy dispersive spectrometer (EDS) and the like. The process for the ternary inorganic coating for the rutile titanium dioxide has the optimized formula as follows: 0.20% of dispersing agent, 0.6% of zirconium, 3.0% of silicon and 1.6% of aluminum, wherein the rotating speed is 340r/min.

The invention provides a method for measuring a uranium isotope ratio in single particles. The method comprises the following steps: S1, preparing a uranium-containing particle sample; S2, searching and identifying uranium-containing particles in the uranium-containing particle sample by utilizing a scanning electron microscope and an X-ray energy dispersive spectrometer; S3, after finding out the uranium-containing particles, transferring the uranium-containing particles onto a sample belt by utilizing a microoperation system; S4, carrying out isotope analysis on the sample belt by utilizing a thermal ionisation mass spectrometer and obtaining the uranium isotope ratio in the uranium-containing particles. Compared with the prior art, the method for measuring the uranium isotope ratio in the single particles, provided by the invention, does not need to carry out irradiation, cooling and etching, can greatly shorten the measurement period of particle analysis and improves analysis efficiency.

The invention discloses a Ni-Cu-La-B quaternary alloy plating solution. The Ni-Cu-La-B quaternary alloy plating solution comprises the following components: 20-40g/L of nickel chloride, 10-20g/L of copper sulfate, 0.5-10 g/L of lanthanum sulfate, 0.5-3 g/L of sodium borohydride, 40-50g/L of potassium sodium tartrate, 15-30g/L of ethylenediamine and 35-60g/L of sodium hydroxide. A method for chemically plating the glass fibers by using the Ni-Cu-La-B quaternary alloy plating solution comprises the following steps: using sodium borohydride as a reducing agent, adding the water-soluble lanthanum sulfate, and chemically plating the glass fibers by using the Ni-Cu-La-B quaternary alloy plating solution under the conditions of strong base and low temperature; plating layers are Ni-Cu-La-B alloy plating layers, wherein the content of boron is low (only about 0.5-5wt%), the content of nickel in the plating layers is high; the plating layers have good bonding force, electrical conductivity and wear resistance. Through observation with microscopes, the plating layers of the Ni-Cu-La-B quaternary alloy plated glass fibers prepared by using the method are compact; testing with an X-ray energy dispersive spectrometer shows that the surface chemistry components of the Ni-Cu-La-B quaternary alloy plated glass fibers contain 15-50wt% of Ni, 2-15wt% of Cu, 0.5-5wt% of La and 0.5-5wt% of B. The electric conducting glass fibers can be applied to the special fields of electromagnetic wave shielding, microwave absorption, invisibility, anti-static electricity and the like.

The invention relates to a detection method of internal defects of thin-gauge cold rolled steel plates for automobiles to mainly solve the technical problem of unable identification, difficult positioning and long detection time of internal defects of present cold rolled steel plates for automobiles, with the thickness of 0.5-1.5mm. The detection method of internal defects of thin-gauge cold rolled steel plates for automobiles comprises the following steps: 1, marking a detection area on a plate sample to be detected; 2, positioning the defect position of the plate sample through using an ultrasonic scanner; 3, cutting the plate sample containing a defect part to make a metallographic sample; 4, observing the defect part of the metallographic sample by using an optical microscope; and 5, carrying out element analysis on the defect part of the metallographic sample by using an energy dispersive spectrometer. Defects are analyzed and detected through adopting combination of ultrasonic scanning and positioning, the optical microscope and the energy dispersive spectrometer to realize positioning and detection analysis of the internal defects of the thin-gauge cold rolled steel plates for automobiles; and the method has the advantages of simplicity, fastness, high precision, and meeting of mass quality examination requirements of the cold rolled steel plates for automobiles.

The invention relates to a method for coating aluminum alloy by using a micro-arc oxidation green film layer. The method comprises the following steps of using the 6063 aluminum alloy as a matrix; adding glycerinum and potassium fluoride (KF) in a system in which Na2SiO3-KOH serves as main electrolyte; preparing coloring electrolyte by using NH4VO3 as coloring agents; and preparing a green micro-arc oxidation ceramic film layer. Influences of electrolyte parameters and electric parameters on an organization structure and the performance of the micro-arc oxidation film layer are researched. Phase composition, microstructure and element contents of the film layer are respectively represented through an X-ray diffractometer (XRD), a scanning electron microscope (SEM) and an energy dispersive spectrometer (EDS), the thickness of the micro-arc oxidation ceramic layer and the strength of bonding between the micro-arc oxidation ceramic layer and the matrix are detected by an eddy coating thickness gage and a scratch spectrometer, the electrochemistry corrosion resisting property of the ceramic layer is analyzed by using an electrochemical corrosion method, technological parameters are optimized, and a green micro-arc oxidation film with high performance is prepared.

A component automatic measurement method based on an image color feature belongs to the field of image analysis. The method provided by the invention realizes automatic measurement of components of paper, metal and the like containing mixtures. Component analysis of a paper based relic and a metal relic is a necessary part before maintenance and protection processing. The current component analysis mostly adopts two methods: one is manual observation of a microscopic image and manual speculation; and the other is measurement based on high-end scientific instruments, such as mass spectrometers, energy dispersive spectrometers, etc., and the method is higher in cost. An image analysis model automatically measures the components by analyzing the microscopic image and realizes automation of the measurement, so that costs are lowered and the image analysis model is green, efficient and low in consumption. The image analysis model can process color and greyscale images, and is widely applicable and has a relatively favorable application prospect.

The invention discloses an analytical method for quantitative evaluation of alloy element segregation in high-temperature alloy. The method includes: an energy dispersive spectrometer for determining main components of a grain boundary precipitate; by a spectrum area scanning function of an electronic probe, distinguishing grain boundary distribution and transgranular distribution of corresponding elements; extracting data of an element area profile; analyzing the data, calculating grain boundary and transgranular element concentration distribution coefficients and drawing a graph of relation to finally realize quantitative evaluation of alloy element segregation in high-temperature alloy. By the analytical method for quantitative evaluation of alloy element segregation in high-temperature alloy, quantitative distinction of distribution of alloy elements at different grain boundary and transgranular positions of the high-temperature alloy can be realized without consumption of a great quantity of standard samples, and extensive application range and evaluation reasonability are realized.

Elements, of which the atomic numbers are smaller than 10, are ultralight elements. At present, an electron probe mainly can detect elements such as boron, carbon, nitrogen, oxygen and fluorine. Due to long wavelength of characteristic X-rays, the penetration capacities of these elements are low, the fluorescence yield is low, the background strength is high, and the interference with overlapped peaks of L and M lines of heavy elements is serious. Therefore, it is difficult to analyze the ultralight elements by using the electron probe or scanning electron microscopy /energy dispersive spectrometer. When the method is used for quantitative analysis on a boron sample by the electron probe, quantitative analysis is performed by changing accelerating voltage, reducing electron penetration depth and selecting a 10KV accelerating voltage, so that more satisfactory boron micro area quantitative analysis and element area distribution results can be achieved.

The invention provides a preparation method for coating TiAlN on the surfaces of titanium and titanium alloy, and relates to a preparation process for coating TiAlN on the surfaces of titanium and titanium alloy. The preparation method is conducted according to the following steps: a, titanium alloy sample materials are got ready, then examined before sample plating preparation, and subjected to ultrasonic cleaning in trichloroethylene, gasoline cleaning (twice), water cleaning, acid cleaning, ethanol cleaning and finally drying; b, TiAlN platings are prepared by adopting an eight-arc-source multi-arc ion plating machine, dried samples are charged into a furnace and cleaned in an ion bombardment manner, and then the TiAlN platings are prepared, cooled in a vacuum manner and discharged from the furnace; c, the preparation technological parameters of the TiAlN platings are that the target current is 60 to 70A, the substrate negative bias is minus 100 to minus 400V, the N2 partial pressure is 0.32Pa, the deposition temperatures are 500 DEG C and 600 DEG C, the total deposition time is 120min, the plating thickness is about three microns, and after the samples are discharged from the furnace after being cooled to a temperature of 80 DEG C in the vacuum furnace; d, energy-dispersive spectrometer (EDS) analysis of coating surfaces is conducted; and e, after the plating is completed, the TiAlN platings are subjected to water cleaning, wiping, drying, assembly and packaging. The TiAlN platings obtained by adopting the preparation method have the advantages of good chemical stability, high anti-oxidation-wear ability, high strength, and high wear resistance.

The invention relates to a synergistic inhibition method for thermal decomposition of an asphalt mixture by a flame-retardant warm mixing agent, belongs to the technical field of asphalt pavement firesafety, and solves the problems that the synergistic flame-retardant effect of various components of the existing composite flame retardant is poor, the whole thermal decomposition process is difficult to inhibit, and the synergistic inhibition effect of the flame-retardant warm-mixing agent on flame retardance and smoke inhibition of an asphalt mixture is difficult to accurately analyze. The method comprises the following steps: firstly, preparing a nano composite flame retardant, performing vacuum adsorption on the nano composite flame retardant and a zeolite warm-mixing agent by using a vacuum adsorption method to prepare a flame-retardant warm-mixing agent, then preparing a common asphalt mixture and a flame-retardant warm-mixing asphalt mixture, and comparing combustion behaviors ofthe two asphalt mixtures by using a cone calorimeter test; using a scanning electron microscope and an energy dispersive spectrometer to analyze the microstructure and elemental composition of residues after pyrolysis of the asphalt mixture. According to the method, all the components of the composite flame retardant can be sequentially decomposed in the heating process of the warm-mixed asphalt mixture to play flame-retardant and smoke-suppressing roles, and the synergistic flame-retardant and smoke-suppressing effects are achieved.

The invention belongs to the technical field of organic matter pore identification and discloses a quantitative characterization method for rapidly determining organic matter pores based on a scanningelectron microscope and an application thereof. The method comprises steps of determining the organic matter distribution position by using a scanning electron microscope; determining the type of themicrocomponents by using an energy dispersive spectrometer and an organic matter form; determining organic pores by utilizing the organic matter microcomponents, and determining the organic matter distribution position, determining the microcomponent type, and determining the organic pore development condition. The method is advantaged in that by adopting the scanning electron microscope to identify the organic matter microcomponents, problems of small observation vision field, high difficulty in finding organic holes, no development and long observation time when the scanning electron microscope is used for observing organic matter pores at present can be effectively solved, and experiment and scientific research efficiency is reduced; the scanning electron microscope =has advantages ofhigh magnification times, strong image stereoscopic impression and simple sample preparation method, the relationship between the organic matter pores and the microcomponents is established, an enrichment mode and morphological characteristics of each microcomponent and the contact relationship between each microcomponent and minerals can be directly observed, and the organic matter pores can be identified.

The invention relates to the technical field of detection. The invention discloses a non-destructive detection method for pollutant components on the surface of a part. The method comprises the following steps: 1, fixing a double-sided conductive adhesive tape, and paving a double-sided conductive adhesive tape on a sample table of a scanning electron microscope; 2, sampling on a sample table, tearing off the protective strip on the double-sided conductive adhesive tape, and adhering the surface area of the to-be-tested part to the double-sided conductive adhesive on the sample table; 3, sealing and storing the sample table, taking down the sample table, putting the sample table into a clean sample table tube, fixing the sample table tube, and sealing the sample table tube; 4, performing EDX atlas acquisition on the foreign matter area, taking down the sample table from the sample table tube, putting the sample table into a sample cabin of a scanning electron microscope, observing foreign matters adhered to the double-sided conductive adhesive by using the scanning electron microscope, and performing EDX atlas acquisition on a foreign matter area by using an energy dispersive spectrometer; 5, carrying out element qualitative and semi-quantitative analysis on the EDX spectrogram to obtain the element composition of the substances on the surface of the part.

The invention relates to the technical field of oil detection, and discloses an oil particle multiple information detection method and application thereof. The oil particle multiple information detection method comprises a sampling step, a sample preparation step, a detection step and a data processing step. The method is characterized in that in the detection step, a scanning electron microscope integrated with an intelligent particle research module and an energy dispersive spectrometer are adopted for detecting oil liquid, and any one or more particle information data of the particle category, the particle number, the particle size range, the particle serial number, the proportion of main elements contained in a single particle and the Feret maximum diameter of the single particle are obtained; and the data processing step comprises integration of detected particle information data, so that the detection is more accurate, the analysis is more comprehensive, and the influence of human factors is greatly reduced.

The invention discloses a method for improving a spatial resolution of an X-ray energy dispersive spectrometer for a scanning electron microscope. The method comprises the following steps: mixing particles or fibrous samples into an embedding agent and a curing agent, stirring, pouring the particles or the fibrous samples into a silicon mold, curing, and demoulding and taking out the particles orfibrous samples after being cooled; cutting a sample sheet with a thickness of 10 to 500nm and then transferring the sample sheet to a copper mesh; fixing the copper mesh loaded with the sample sheeton a copper mesh bracket, and enabling the copper mesh bracket to be in contact and fixed with the edge of the copper mesh; and pushing a crystal detector to the vicinity of an objective pole shoe ofthe electron microscope to increase a solid angle to 0.01 to 0.05sr, adjusting relevant parameters, and then performing an energy spectrum test. According to the method for improving the spatial resolution of the X-ray energy dispersive spectrometer for the scanning electron microscope provided by the invention, the spatial resolution in the X-ray energy spectrum test can be greatly improved underthe synergistic effect of appropriate thinning of the thickness of the sample, proper setting of various test parameters and other treatment measures, and a basis is provided for accurate experimenttest results.

The invention relates to a calibration method of the detection depth of an energy dispersive spectrometer. The calibration method includes the following steps that 1, fused quartz substrates are plated with metal film layers with the thickness of d0 and then are marked as I-type samples; 2, the fused quartz substrates with the metal film layers are plated with SiO2 film layers with different thicknesses respectively and then are marked as II-type samples; 3, the energy dispersive spectrometer is adopted to measure the metal element M proportions of the I-type samples and the II-type samples separately, and the measurement results of the I-type samples are adopted to amend the metal element M proportions of the II-type samples; 4, a curve about the thicknesses of the SiO2 film layers and the metal element proportions after amendment is drawn, and the thickness of the SiO2 film layer when the metal element M proportion is 0 is obtained through fitting and then serves as the detection depth of the energy dispersive spectrometer to complete calibration. Compared with the prior art, the calibration method of the detection depth of the energy dispersive spectrometer has the advantages ofbeing simple and accurate in judgement and the like.

The invention relates to a failure analysis method for a computer mainboard. The failure analysis method comprises the following steps of: (1) performing optical appearance inspection on the computer mainboard to judge whether the computer mainboard is contaminated or not; (2) performing electrical isolation testing on the computer mainboard judged to be contaminated in the step (1) to judge whether electrical abnormality exists or not; (3) performing SEM/EDS (Scanning Electron Microscopy/Energy Dispersive Spectrometer) analysis on the computer mainboard judged to undergo electrical abnormality in the step (2) to judge whether electroconductive elements exist in the computer mainbody or not; and (4) performing ultrasonic cleaning on the computer mainboard judged to be with the electroconductive elements in the step (3). According to the failure analysis method for the computer mainboard in the invention, by performing optical appearance inspection, the electrical isolation testing, the SEM/EDS analysis and the ultrasonic cleaning on the computer mainboard, failure phenomena of the computer mainboard can be detected effectively and rapidly.

The invention discloses an alloy design method for reducing directionally-solidified titanium aluminum alloy casting member and casting mold coating interface reaction, and belongs to a method for improving titanium aluminum alloy casting quality. The specific steps are as follows: designing TiAl alloys with different Nb contents for directional solidification process to obtain casting members; and using a microhardness tester to test Vickers microhardness to determine interface reaction layer thickness. A German brooke Quantax400-10 energy dispersive spectrometer is used for sample interface element distribution analysis, a German Brook D8AdanceX ray diffractometer is used for sample surface phase analysis, and a United States FEIQuanta TM250 scanning electron microscope is used for casting memberreaction layer and casting member matrix tissue morphology observation and analysis. Through corresponding analysis and test of the directionally-solidified titanium aluminum alloy casting members obtained by the alloy design, interfacial reaction degree can be obtained specifically and vividly, corresponding titanium aluminum alloy casting member quality can be well evaluated, and a TiAl alloy casting member with optimized Nb content can be obtained.

The invention relates to a method for detecting a source of a piece of oxide scale peeled off from the inner wall of a heated surface of a boiler. The method comprises the steps of selecting a piece of oxide scale with a light grey surface and a black or dark grey surface, observing the black or dark grey surface of the oxide scale by utilizing a scanning electronic microscope with an X-ray energy dispersive spectrometer, finding out residues on an inner layer of the oxide scale, and carrying out X-ray energy spectral analysis on the residues on the inner layer of the oxide scale so as to obtain an X-ray energy spectral analysis result; and comparing the X-ray energy spectral analysis result of the residues on the inner layer of the oxide scale with an alloy steel element in a tubular screen of the heated surface, and determining the source of the peeled oxide scale. By adopting the method, the oxide scale peeled off from the tubular screen can be easily and conveniently determined to be peeled from the inner wall of which material, so that the peel-off and pipe blockage problem of the oxide scale can be treated in a targeted manner in a power plant.