Results 61 to 70 of about 19,112 (299)
Partial Discharge Modelling Based on a Cylindrical Model in Solid Dielectrics
, 2008 Partial discharges (PDs) are harmful to electrical insulation as they may degrade the material. Consequently, a lot of efforts have been made to develop suitable systems for PD measurements and monitoring.
Baharudin, Fauzan +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
wiley +1 more source
Influence of Electric Discharges on Bearings of Electric Machina
Advances in Electrical and Electronic Engineering, 2008 Bearing currents are one of cause’s bearings faults. The character of a lubricator belongs to main factor influencing an inception of bearing currents. We have analyzed the electric character variety kind of lubricators; the influence of lubricators on a
Jiri Foldyna +2 more
doaj
Carbon Nanofoam by Pulsed Electric Arc Discharges
Advances in Materials Science and Engineering, 2018 The aim of this article was to report the carbon nanofoam synthesis by a new method and a new catalytic mixture. Using the pulsed electric arc discharge method, carbon nanofoam was synthesized.
David Saucedo-Jimenez +2 more
doaj +1 more source
Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys
Advanced Engineering Materials, EarlyView.Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak +3 more
wiley +1 more source
Influence of Electric Discharges on Bearings of Electric Machines
Advances in Electrical and Electronic Engineering, 2006 I the last time many articles were found out discussed about shaft voltage, bearing currents and their influence on lifetime and reliability of electric machines bearings.
Karel Chmelik, Vaclav Cech, Jiri Foldyna
doaj
Plasma breakdown of low-pressure gas discharges [PDF]
, 2006 Natural gas discharges like lightning and polar light are spectacular phenomena that have impressed and fascinated people for a long time. During the last two centuries, people have learned how to create their own gas discharges and how to make use of ...
Wagenaars, E., Wagenaars, E Erik
core +1 more source
Advanced Engineering Materials, EarlyView.The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat +5 more
wiley +1 more source
A mathematical analysis of electrical discharges [PDF]
Quarterly of Applied Mathematics, 2002 This paper uses fluid models to study the behaviour of charged and neutral particles in systems arising in electrical discharges. The existence and uniqueness of the solution, local in time, is proved in a bounded domain for a drift-diffusion-Poisson system when coupled with the isothermal Euler system with the momentum prescribed on the boundary.
Severin, Francois, Nouri, Anne
openaire +1 more source
Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy
Advanced Engineering Materials, EarlyView.A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang +10 more
wiley +1 more source