Results 51 to 60 of about 162,982 (292)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Lightweight and High-Stiffness Metal Optical Systems Based on Additive Manufacturing

Micromachines
To build a long-wave infrared catadioptric optical system for deep space low-temperature target detection with a lightweight and wide field of view, this work conducted a study that encompasses a local cooling optical system, topology optimization-based ...
Qiang Fu, Lei Yan, Shuanglong Tan, Yang Liu, Lingjie Wang   +4 more
doaj   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Research activities and progress on the long pulse ECRH launcher for EAST [PDF]

EPJ Web of Conferences, 2019
A long pulse Electron Cyclotron Resonance Heating (ECRH) system is developed on EAST tokamak for plasma heating and current profile tailoring. The ECRH system is designed to operate at 140GHz and to inject 4MW CW power.
Wang Xiaojie, Liu Fukun, Wei Wei, Tang Yunying, Li Bo, Zhang Liyuan, Xu Handong, Wu Dajun, Shan Jiafang, Hu Huaichuan, Wang Jian, Wu Zege, Ma Wendong, Zhang Jian, Li Miaohui, Zhang Yang, Liu Yong, Liu Yong, Liu Yong, Liu Yong   +19 more
doaj   +1 more source

Notes about Noise in Gravitational Wave Antennas Created by Cosmic Rays

, 2005
Thermodynamical fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body but also through thermal expansion in mirror coating.
Barish, Belenkiy, Beron, Braginsky, Braginsky, Chiang, Enikeev, Hayakawa, Imshennik, Khalili, Mitrofanov, Mitrofanov, Mortonson, O.G. Ryazhskaya, Ryazhskaya, Ryazhskaya, S.P. Vyatchanin, V.B. Braginsky, Volkova, Weiss   +19 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Polarization-maintaining reflection-mode THz time-domain spectroscopy of a polyimide based ultra-thin narrow-band metamaterial absorber [PDF]

, 2018
This paper reports the design, the microfabrication and the experimental characterization of an ultra-thin narrow-band metamaterial absorber at terahertz frequencies.
Astorino, Maria Denise, Fastampa, Renato, Frezza, Fabrizio, Maiolo, Luca, Marrani, Marco, Missori, Mauro, Muzi, Marco, Tedeschi, Nicola, Veroli, Andrea   +8 more
core   +2 more sources

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source

A Hoard from the Uvek Fortified Site: an Accidental Find of 1994

Поволжская археология, 2013
A hoard of pottery, metal lamps, mirrors and a lampad, accidentally discovered on the Uvek settlement site in 1994 is made public. The pottery items are represented by three Qashan pottery bowls with underglaze painting and a red-clay jug. The two bronze
Kubankin Dmitriy A. , Sergeeva Oksana V.   +1 more
doaj   +1 more source

Sub-Nanometer Accuracy Combination Processing Technology for Nickel–Phosphorus Modified Surfaces Based on Aluminum Reflector Mirror

Micromachines, 2022
The surface of metal mirrors is often polished by electroless coating with a Ni–P modified layer after single-point diamond turning. In practice, however, improvements in mirror quality are closely related to the polishing environment, polishing medium ...
Hao Hu, Chao Xu, Tao Lai, Qilin Yang, Xiaoqiang Peng, Junfeng Liu, Yupeng Xiong, Jia Qiu   +7 more
doaj   +1 more source