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High current pulsed electron beam

Web30 de jan. de 2003 · It can produce electron beam of low-energy (10–40 keV), high peak current (10 2 –10 3 A/cm 2 ), short pulse duration (5 μs), and high efficiency (repeating pulse interval being 10 s). The electron beam is generated by an explosive emission … WebAfter high current pulsed electron beam treatment, many cracks are found on surface. The main reason is possibly due to the quasi-static thermal stresses accumulated along the surface of the specimens during the electron beam treatment. The surface grain grow from Cr particles because of heating by electron beam, and their size is less than 200nm.

Temperature profile and crater formation induced in high-current …

Web13 de abr. de 2024 · In O-type devices an electron beam drifts in the same direction as the applied magnetic field. Among them, the O-type slow-wave devices use the axial slow … Web1 de mar. de 2009 · High current pulsed electron beam (HCPEB) is a fairly new technique for surface modifications, including hardening, alloying and formation of metastable … ipot chili with beans https://clincobchiapas.com

Photoacoustic 2D actuator via femtosecond pulsed laser action on …

Web1Beam Technology Development Group, Bhabha Atomic Research Centre, Mumbai India-400085 Abstract High current intense electron beams were investigated earlier for Flash X-rays and nuclear electromagnetic pulse generation. Starting with moderate parameters of 200 kV, 6 kA, 60 ns pulsed electron beam source from a system Webinteraction of pulsed electron beams of moderate power density with metals, are far from being solved completely. The electron guns with an anode and an explosive-emission cathode are the most appropriate systems for the production of high-current pulsed electron beams (Li et al., 2008c, 2009e; Tarasenko et al., 2008). The beam power is WebAfter high current pulsed electron beam treatment, many cracks are found on surface. The main reason is possibly due to the quasi-static thermal stresses accumulated along … ipot indopremier download

Photoacoustic 2D actuator via femtosecond pulsed laser action on …

Category:Developments of Pulsed Electron Beam Sources for High-Power …

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High current pulsed electron beam

Structure and Performance of YSZ Thermal Barrier Coatings …

Web13 de abr. de 2024 · We study the formation of a high-current electron beam with a duration of 1 ns in a magnetically insulated coaxial diode with a cold cathode under … WebHigh current pulsed electron beam (HCPEB) is a new type of surface modification technology [19, 20, 21]. During the instantaneous process of HCPEB bombardment, the higher energy (10 7 –10 9 W/cm 2 ) acts on the surface of the material in a very short time (several microseconds), resulting in extremely rapid heating, cooling, melting, and even …

High current pulsed electron beam

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Web27 de abr. de 2004 · Physical models and numerical simulations are used to describe the thermal-mechanical process induced by high current pulsed electron beam (energy … WebHigh-current pulsed electron-beam (PEB) treatment was applied as a surface finishing procedure for Ti–35Nb–7Zr–5Ta (TNZT) alloy produced by electron beam melting …

WebThe diagnostics is based on the thermal imager registration of the imaging electron beam thermal print in a material with low bulk density and low thermal conductivity. Testing of … Web15 de nov. de 2024 · Recently, high-current pulsed electron beam (HCPEB) irradiation has been proposed as an innovative non-equilibrium surface modification technology, …

WebKeywords: high-current pulsed electron beam; heat-a ected zone; shock wave; thermal stress wave; grain refinement 1. Introduction As an advanced surface modification technique, high-current pulsed electron beam (HCPEB) technology has attracted scholarly attention in the field of material surface modification owing to the Web26 de dez. de 2024 · chromium by high current pulsed electron beam treatment Chen Li, Qingfeng Guan, Jie Cai et al.-Compounded Surface Modification of ZK60 Mg Alloy by …

WebNew developments have made it possible to obtain electron-beam pulses representing currents of as high as 1 MA. The technology of beam generation is discussed along with …

Web13 de abr. de 2024 · We study the formation of a high-current electron beam with a duration of 1 ns in a magnetically insulated coaxial diode with a cold cathode under varying residual gas pressure. It is demonstrated that before the transition from explosive electron emission in vacuum to the electron runaway regime in a gas, an increase in the beam … ipot chicken soupWeb1 de out. de 2004 · Physical models and numerical simulations are applied to describe the thermal–dynamical processes of the high current pulsed electron beam (HCPEB) … ipot chicken thighsWeb12 de dez. de 2024 · Although the SC effect occurs under high charge conditions, a component of the interference fringe remained. Consequently, despite the high current density, the pulsed electron beam emitted from the PC has sufficient coherence to realize time-resolved holography that can be used to temporally analyze phase information. orbital weld head maintenanceWeb22 de nov. de 2024 · Commercial TiAlN-coated carbide tools were post-treated using the high current pulsed electron beam irradiation method. The influence of the energy … orbital weld tube fittingsWeb28 de mai. de 2024 · Abstract: High-current pulsed electron beam sources are the core components of high-power microwave systems. In order to meet the requirements of … ipot chicken noodle soupWebMicrostructures of CuCr25 and CuCr50 alloys treated by high current pulsed electron beam (HCPEB) were investigated in this work. The microstructure and solidification behavior of the Cr-rich phases were characterized by scanning electron microscopy (SEM). Results show that a remelting layer of 3~5 μm is formed on the surface of Cu-Cr alloys. ipot newsWeb1 de jan. de 2024 · The electron beam is generated by “pseudo-spark” discharge device and characterized by high current (hundreds of amperes to thousands of amperes), … ipot member area