13 results about "Electron scattering" patented technology

This invention relates to the field of copper alloy materials technology, and more particularly to a Cu-Fe-Re alloy based on controlled deformation and its preparation method. The alloy composition, by weight percentage, includes: 10%~20% iron, 0.2%~1.0% rare earth elements, and the balance being copper and unavoidable impurities; the rare earth elements are selected from one or more of cerium, lanthanum, and yttrium. Based on rare earth refinement, this invention, through precise control of the deformation amount, transforms the precipitated iron phase from coarse dendrites to dispersed droplets, which, after further deformation, evolve into a fibrous structure. The gaps between iron phases are significantly reduced, and the distribution becomes more compact. The optimized selection of the deformation amount achieves the best match between dislocation strengthening and second-phase strengthening. Simultaneously, in terms of electrical conductivity, by controlling the dislocation density and second-phase morphology, the electron scattering effect is minimized, achieving a synergistic improvement in strength and conductivity. The introduction of rare earth elements can purify grain boundaries, refine the as-cast structure, and improve the distribution of the second phase.

This invention relates to the field of copper alloy materials technology, specifically to a high-performance copper alloy wire and its preparation process. A high-performance copper alloy wire includes a base copper alloy wire and a corrosion-resistant protective layer. The base copper alloy wire, by mass percentage, comprises: 0.4-0.6% Cr, 0.05-0.2% Zr, 0.05-0.06% Hf, 0.01-0.03% Ce, 0.4-0.5% rare earth modified carbon nanotubes, with the balance being Cu. This invention improves the dispersibility of carbon nanotubes by first activating them with carboxylation and then modifying them with rare earth citric acid coupling agents. The uniformly dispersed carbon nanotubes can form a continuous conductive network in the copper matrix. At the same time, the lanthanum and cerium introduced during modification can purify the grain boundaries and reduce electron scattering at the grain boundaries, thereby effectively improving the conductivity of the copper alloy wire. In addition, the uniformly dispersed rare earth modified carbon nanotubes can effectively hinder dislocation movement and refine the matrix grains, thereby effectively improving the tensile strength of the copper alloy wire.

The invention relates to the technical field of VR, in particular to an electron beam generation method and device based on VR and a medium, and the method comprises the steps: generating a corresponding original electron beam 3D model in a VR environment based on electron beam parameters; determining a position mapping relation between a predefined VR environment and the original 2D image data; performing image fuzzy processing and image brightness processing according to the electron beam parameters to obtain updated 2D image data; and mapping the updated 2D image data as a texture to the surface of the original electron beam 3D model, and generating a standard electron beam 3D model in a VR environment. An electron scattering effect is simulated through image blurring processing, an edge blurring effect conforming to a physical rule is generated, and intensity distribution is mapped through image brightness processing, so that an electron beam in a VR environment presents a real optical characteristic that the center is bright and the edge is gradually weak, and the fidelity visualization of the physical attribute of the electron beam is realized.

The application relates to the field of metal matrix composites and wire and cable manufacturing, in particular to a high-strength and high-conductivity copper alloy energy storage cable and a preparation method; the cable comprises, from inside to outside, a conductor core, an insulation layer, a flame-retardant armored layer and a weather-resistant sheath layer; the conductor core is uniformly dispersed with a multifunctional composite modifier in a copper matrix, the modifier has a core-shell structure and is composed of a multi-walled carbon nanotube center core, a 5-15nm silver conductive transition shell layer and a rare earth anchoring phase; the core is to construct a high-strength skeleton by using the carbon nanotube to provide physical strengthening support, and the silver transition shell layer is used to tightly fuse with the copper matrix in a microstate, so that micro-pores are eliminated to realize dense metallurgical coherent bonding; the alloy single wire is prepared by feeding the intermediate into the copper melt and assisting with ladder aging treatment, the electronic transmission channel is effectively bridged, the interface electron scattering is greatly reduced, and the technical bottleneck of the traditional metal material strong-conductivity mutual repulsion is successfully broken.

This invention relates to the field of VR technology, specifically to a VR-based electron beam generation method, device, and medium. The method includes: generating a corresponding original electron beam 3D model in a VR environment based on electron beam parameters; determining the positional mapping relationship between the predefined VR environment and the original 2D image data; performing image blurring and brightness processing according to the electron beam parameters to obtain updated 2D image data; and mapping the updated 2D image data as a texture onto the surface of the original electron beam 3D model to generate a standard electron beam 3D model in the VR environment. By simulating electron scattering effects through image blurring, an edge blurring effect conforming to physical laws is generated. Furthermore, by mapping the intensity distribution through image brightness processing, the electron beam in the VR environment exhibits realistic optical characteristics of a bright center and gradually weakening edges, thereby achieving faithful visualization of the physical properties of the electron beam.

The invention provides a copper alloy material and a preparation method thereof, and the copper alloy material comprises the following components in percentage by weight: 0.2 to 0.7 percent of Cr, 0.2 to 0.4 percent of Ti, 0.05 to 0.4 percent of Zn, 0.01 to 0.05 percent of Si, 0.005 to 0.05 percent of Re and the balance of Cu and inevitable impurity elements. Wherein Re comprises Dy and Y. According to the invention, the Cr precipitation structure improves the alloy strength, the Ti can refine the alloy lattice and enhance the thermal stability of the matrix, and the Zn and Si can reduce the electron scattering source and inhibit the reduction of the conductivity; the mixed rare earth Re can obviously refine the grain structure of the copper alloy, stabilize the grain boundary, reduce the grain boundary resistance, and meanwhile achieve the purposes of strengthening the matrix and maintaining the high-conductivity characteristic. According to the copper alloy obtained through the metal and the proportion, the strength and the conductivity can be synchronously improved on the premise that electron scattering is not remarkably increased.

The application discloses a kind of high-conductivity aluminum alloy wire and preparation method thereof, including following weight percentage of element: B is 0.01-0.05%, Si is 0.1-0.3%, Fe is 0.1-0.25%, Zn is 0.01-0.05%, Tb is 0.001-0.005%, Ce is 0.005-0.02%, V is 0.001-0.005%, Ti is 0.001-0.005%, Zr is 0.01-0.05%, Er is 0.001-0.005%, the rest is Al;The beneficial effect of the application is: B and the compound formed by Si are dispersed in aluminum alloy matrix, effectively refine grain, reduce the influence of electron scattering on grain boundary, so as to significantly improve the conductivity of aluminum alloy wire, can effectively reduce the power loss of power transmission line, improve transmission efficiency;Tb, Ce, Er and other rare earth elements interact with Fe, Zn and other elements, improve the crystal structure of alloy, strengthen the grain boundary binding force, so that aluminum alloy wire has excellent tensile strength, elongation and fatigue life, can better adapt to complex power transmission environment, improve the reliability and stability of power transmission line.

The invention discloses a preparation device of a signal monitoring line for vehicle-mounted wireless charging. The preparation device comprises a rack, and a tin scraping assembly, a zero-distance sealing butt joint bridge and a wire annealing furnace which are sequentially arranged along a wire conveying path on the rack, an outlet of the tin scraping assembly is connected with an inlet of the wire annealing furnace in a sealed mode through a zero-distance sealing butt joint bridge, and the tin scraping assembly comprises a tin scraping box, two scraping plates arranged in the tin scraping box and a sealing cover arranged above the tin scraping box. The wire annealing furnace is a closed infrared heating tunnel furnace, a furnace body of the wire annealing furnace is made of a high-temperature-resistant alloy material, and an infrared heating array and a temperature sensor are arranged in the wire annealing furnace; a mounting plate is fixedly connected to the top of the rack, double optimization of the surface state and the internal structure of the wire rod is achieved through cooperative application of inert gas protection transmission and precise annealing steps, high-resistance pollutants are prevented from being generated through the pure surface, and electron scattering is reduced through a uniform and refined internal grain structure.

This invention relates to the field of aluminum alloy production technology, specifically disclosing a method for producing high-purity, high-conductivity aluminum strip with high efficiency and low carbon emissions. The method utilizes continuous casting and rolling to produce 1085 alloy high-purity aluminum strip. While ensuring efficient, low-carbon, and low-cost production through a short process, the cold rolling process employs a three-stage fully recrystallized annealing process: intermediate annealing + cold rolling + intermediate annealing + cold rolling + finished product annealing. This produces 0-state aluminum strip with a soft texture, eliminating the formation of large grains. Through three recrystallization processes, work hardening is eliminated, solid solution impurities precipitate, the number and severity of lattice distortion are reduced, dislocation defect density is low, and free electron scattering is significantly weakened, resulting in improved conductivity. The tensile strength is only about 53 MPa, making it extremely easy to process and use. The finished product conductivity is ≥37.5 mS / m, an improvement of about 3% compared to traditional processes, making it suitable for high-conductivity applications such as power equipment.

The invention relates to the field of manufacturing of metal-based composite materials and electric wires and cables, in particular to a high-strength and high-conductivity copper alloy energy storage cable and a preparation method. The cable sequentially comprises a conductor core, an insulating layer, a flame-retardant armor layer and a weather-proof sheath layer from inside to outside. A multifunctional composite modifier is uniformly dispersed in a conductor core copper matrix, and the modifier is of a core-shell structure and is composed of a multi-walled carbon nanotube center core, a 5-15 nm silver conductive transition shell layer and a rare earth anchoring phase. The core of the composite material is that a high-strength framework is constructed by using a carbon nano tube to provide physical strengthening support, and a silver transition shell layer and a copper matrix are closely fused in a microscopic state, so that micro pores are eliminated, and dense metallurgical coherent combination is realized; according to the invention, the alloy single wire is prepared by feeding the intermediate into the copper melt and carrying out stepped aging treatment, so that an electron transmission channel is effectively bridged, interface electron scattering is greatly reduced, and the technical bottleneck of strong conduction and mutual exclusion of traditional metal materials is successfully broken.

The invention provides a method for predicting secondary electron emission time based on Monte Carlo, and the method comprises the following steps: 1, obtaining the fluctuation height and the maximum fluctuation height; 2, determining incident electron characteristics and material types, and setting an initial moment; step 3, simulating an electron scattering and internal secondary electron generation process and calculating a scattering step length; 4, judging whether scattering is in the material or not, if yes, calculating and updating the moment to the step 3, and otherwise, executing the step 5; 5, judging whether the surface potential barrier is traversed or not, and if not, returning to the updating moment to the step 3; otherwise, updating the time to step 6; step 6, judging whether re-incidence occurs or not, if no, updating the moment, and obtaining the secondary electron emission moment; otherwise, calculating the time to the re-incidence point and updating the time, and going to the step 3; and step 7, counting all electron moments to obtain secondary electron emission time. According to the method disclosed by the invention, all durations of electrons from entering the material to generating secondary electrons and completely emitting from the surface are obtained, and the secondary electron emission time characteristic is obtained.

According to the silver-bismuth-copper alloy electrode material for the high-temperature crystal oscillator and the high-temperature-resistant coating method for the crystal oscillator, the problems that pure silver is prone to crystal grain growth and oxidation to form electrode material defects, and frequency drift is caused by electrode material defects of a traditional crystal oscillator in a high-temperature environment are solved; a multi-element alloy electrode material which takes silver as a basis and is added with bismuth, copper, indium, lanthanum and antimony and a matched preparation and coating process are provided, silver ensures excellent conductivity of an electrode, bismuth pinns a grain boundary, copper forms second-phase particles to jointly inhibit grain growth at high temperature, and the conductivity of the electrode is improved. Indium preferentially forms a compact oxide film, lanthanum purifies impurities and refines initial crystal grains, antimony optimizes wettability of a film layer to synergistically inhibit oxidation, and because crystal grain growth is inhibited, a fine and uniform microstructure of the electrode film layer can be maintained, uniform electron scattering and stable resistance are ensured, and electric field change of an excitation substrate caused by resistance fluctuation is avoided. The oxidation inhibition can prevent irregular change of electrode mass and volume and local difference of thermal expansion coefficient, and reduces frequency drift of the crystal oscillator.

The application relates to the technical field of silver-coated copper powder, in particular to silver-coated copper powder suitable for high-frequency electronic components and a preparation method thereof. The silver-coated copper powder comprises the following steps: copper powder treatment, chemical silver plating, cleaning and drying, surface finishing, silver layer deposition and passivation and material taking, the application utilizes the skin effect, and a surface silver layer formed through PVD is extremely dense and smooth, thus providing a nearly perfect transmission channel for high-frequency current, and the resistivity of the silver layer is close to that of a bulk silver single crystal. The reduction of surface roughness also reduces electron scattering; in a target high-frequency band, the conductive loss of the silver-coated copper powder is far higher than that of a pure chemical plating product and reaches the level of pure silver powder.