Results 141 to 150 of about 10,754 (285)
Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger +2 more
wiley +1 more source
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert +6 more
wiley +1 more source
Practical high frequency measurement of a lightning earthing system [PDF]
International audienceThe authors have used a high frequency earthing meter worldwide to qualify lightning earthing systems and got some feedback. Purpose of this paper is to present some of these practical results and to start discussion on how to use ...
Gruet, Pierre, Rousseau, A.
core +1 more source
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Исследование распределения потенциалов на поверхности грунта у въездов (входов) и углов заземляющего контура подстанции [PDF]
The results of the potential field research on the surface of the ground in the substation and beyond. The necessity of the design of the sub-stations earthing system to inspect the contact voltage at predetermined points as calculated by, and after the ...
Крупенко, А. А +2 more
core
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin +5 more
wiley +1 more source
Development of a CAD system based on a BEM approach for earthing grids in stratified soils [PDF]
[Abstract] The design of safe earthing systems is esential to assure the security of the persons as well as the protection of the equipment and the continuity of the power supply. For the attainment of these aims, it is necesary to compute the equivalent
Aneiros Blanco, Juan M. +3 more
core
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk +7 more
wiley +1 more source
Welding of earthing sockets using the aluminothermic process [PDF]
Exothermic welding is a welding process at extremely high temperatures, based on chemical reactions that release significant amounts of heat. This is a fundamental process in making electrical connections, especially in the installation of earthing ...
C Alexandru +3 more
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