Results 81 to 90 of about 320,999 (343)

Modeling and optimization of the multichannel spark discharge [PDF]

, 2017
This paper reports a novel analytic model of this multichannel spark discharge, considering the delay time in the breakdown process, the electric transforming of the discharge channel from a capacitor to a resistor induced by the air breakdown, and the ...
Jia, M., Li, Y-H., Song, H-M., Sun, Z., Wu, Y., Zhang, Z-B.   +5 more
core   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

Effect of Nanoparticle Morphology on Pre-Breakdown and Breakdown Properties of Insulating Oil-Based Nanofluids

Nanomaterials, 2018
Nanoparticles currently in use are challenged in further improving the dielectric strength of insulating oil. There is a great need for a new type of nanoparticle to promote the application of insulating oil-based nanofluids in electric industries.
Yuzhen Lv, Yang Ge, Zhen Sun, Qian Sun, Meng Huang, Chengrong Li, Bo Qi, Jinsha Yuan, Zhaoliang Xing   +8 more
doaj   +1 more source

Non-equilibrium breakdown of quantum Hall state in graphene

, 2009
In this report we experimentally probe the non-equilibrium breakdown of the quantum Hall state in monolayer graphene by injecting a high current density ($\sim$1A/m). The measured critical currents for dissipationless transport in the vicinity of integer
Deshmukh, Mandar M., Singh, Vibhor
core   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

Advanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan, Nora Fernández Navas, Thorgund Nemec, Ivan Kaban, Ute Hempel, Andrea Voss, Volker Hoffmann, Darius Pohl, Annett Gebert   +8 more
wiley   +1 more source

Comparison of electric field characteristics of trigatron gas switch in FBM and SBM

AIP Advances
The electromagnetic field emitted by the trigatron switch (TGS) can cause electromagnetic interference in nearby electronic devices. According to the breakdown sequence of the main gap and trigger gap, the breakdown of TGS can be divided into two modes ...
Wanqing Jing, Fuxing Li, Xiao Yu, Hua Zhong   +3 more
doaj   +1 more source

Dielectric breakdown in spin polarized Mott insulator

, 2012
Nonlinear response of a Mott insulator to external electric field, corresponding to dielectric breakdown phenomenon, is studied within of a one-dimensional half-filled Hubbard model.
A. A. Ovchinnikov, A. M. Dykhne, L. D. Landau, Peter Prelovšek, Zala Lenarčič   +4 more
core   +1 more source

Domain Wall Motion in Thin-Film Magnets/ Topological Insulator Junctions [PDF]

, 2014
We derive the equations of motion of a Domain Wall in a thin-film magnet coupled to the surface states of a Topological Insulator in the presence of of both an electric field along the Domain Wall and a magnetic field perpendicular to the junction.
Cortijo, Alberto, Ferreiros, Yago
core   +3 more sources

Evaluation of Plasticity and Creep Parameters From Tensile Stress–Strain Data for a Range of Strain Rates

Advanced Engineering Materials, EarlyView.
This plot compares experimental tensile stress–strain curves (with 4 different strain rates) and corresponding modelled curves (obtained using the optimised sets of Voce and Miller–Norton parameter values shown). The inferred M‐N values, characterizing the creep, are very similar to those obtained via conventional creep testing.
S. Ooi, R. P. Thompson, T. W. Clyne
wiley   +1 more source

Electrical breakdown in vacuum

Vacuum, 1953
Direct and impulse voltages were applied to an electrode system in a vacuum of the order of 10−5 mm Hg. Of particular interest were the results obtained with a needle-and-sphere system, the breakdown voltage of which was considerably higher than that of a normal sphere-gap with the same electrode spacing, especially when a very fine needle was used ...
openaire   +3 more sources