Results 121 to 130 of about 18,438,198 (314)

Vacuum in an accelerator system - calculations and measurements

, 2005
The importance of different sources of gases in a vacuum system is discussed and the definitions of different flow regimes are presented. The conductance is given for a few different, typical geometries in an accelerator vacuum system.
Stenström, Kristina, Persson, Per, Hellborg, Ragnar, Kiisk, M, Stenström, Kristina,   +4 more
core   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Vacuum road guide to N. S. Wales [cartographic material] /

, 1939
Road map of New South Wales. Relief shown by hachures and spot heights.; "1939 Mobiloil chart."; Includes distance table, traffic hints and tourist information.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.map ...
Barrass, Clive.
core  

Solid-state electrochemical nanoimprinting of copper

, 2007
For the first time, the authors report highly selective dry etching of copper with a resolution of 80 nm using solid-state electrochemical nanoimprint technology. By exploiting the high mobility of copper ions in solid electrolytes such as copper sulfide,
Placid M. Ferreira, Fang, Nicholas X., Ferreira, Placid M., Hsu, Keng H., Peter L. Schultz, Schultz, Peter L., Keng H. Hsu, Nicholas X. Fang   +7 more
core   +1 more source

Analysis of the protective behavior and mechanism of MgO-C-Mg film for crude magnesium smelting

Journal of Magnesium and Alloys
s: A major problem facing the magnesium melting process is to address the oxidative combustion of magnesium. At present, there are still some problems in the method used to protect magnesium smelting.
Rong Yu, Yang Tian, Bin Yang, Xiumin Chen, Baoqiang Xu, Wenlong Jiang, Tingzhuang Ma, Lipeng Wang, Dong Liang, Haosong Yu   +9 more
doaj   +1 more source

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

Advanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik, Liliana I. Duarte, Malgorzata G. Makowska, Roland Brütsch, Andrej Bullemer, Ana Diaz, Mirko Holler, Andreas Menzel, Johannes Bertsch, Pavel Trtik   +9 more
wiley   +1 more source

Vacuum-Induced Saturation in Plasmonic Nanoparticles

, 2020
Vacuum fluctuations are a fundamental feature of quantized fields. It is usually assumed that observations connected to vacuum fluctuations require a system well isolated from other influences.
Oliver Benson (1318839), Matias Bargheer (1739329), Günter Kewes (6989051), Wouter Koopman (1919785), Felix Stete (4237870), Carsten Henkel (1758430)   +5 more
core   +1 more source

Progress and prospects in magnesium alloy scrap recycling

Journal of Magnesium and Alloys
Magnesium (Mg) alloy is widely used in aerospace and automotive industries as an excellent lightweight metal material to reduce carbon emissions. The expansion of Mg alloy applications and the increasing demands for these materials have significantly ...
Lipeng Wang, Dong Liang, Rong Yu, Meng Wang, Yang Tian, Tingzhuang Ma, Bin Yang, Baoqiang Xu, Wenlong Jiang   +8 more
doaj   +1 more source

THE INFLUENCE OF GRAVITATION ON THE VACUUM STATE

Acta Physica Sinica, 1978
Using an exact cosmological solution of a simple model it is shown that the break-ing of symmetry in the vacuum state may be due to cosmological effects.
openaire   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source