Results 41 to 50 of about 274,489 (274)

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

SiO₂ nanoparticles induce cytotoxicity and protein expression alteration in HaCaT cells

Particle and Fibre Toxicology, 2010
Background Nanometer silicon dioxide (nano-SiO2) has a wide variety of applications in material sciences, engineering and medicine; however, the potential cell biological and proteomic effects of nano-SiO2 exposure and the toxic mechanisms remain far ...
Huang Haiyan, Yuan Jianhui, Yang Lingqing, Wang Xiaomei, Gong Chunmei, Zhou Li, He Haowei, Liu Jianjun, Yang Xifei, He Lianhua, Zhang Bing, Zhuang Zhixiong   +11 more
doaj   +1 more source

Porous 'Ouzo-effect' silica-ceria composite colloids and their application to aluminium corrosion protection. [PDF]

, 2012
By exploiting spontaneous emulsification to prepare porous SiO(2) particles, we report the formation of porous CeO(2)@SiO(2) hybrid colloids and their incorporation into a silica-zirconia coating to improve the corrosion protection of ...
Borisova, D, Hollamby, MJ, Möhwald, H, Shchukin, D   +3 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Influence of SiO₂ on the Compressive Strength and Reduction-Melting of Pellets

Metals, 2019
The effects of SiO2 content on the compressive strength, reduction behavior and melting-dripping properties of the pellets were investigated under experimental conditions.
He Guo, Xin Jiang, Fengman Shen, Haiyan Zheng, Qiangjian Gao, Xin Zhang   +5 more
doaj   +1 more source

Chemically Distinct Nuclei and Outflowing Shocked Molecular Gas in Arp 220 [PDF]

, 2014
We present the results of interferometric spectral line observations of Arp 220 at 3.5mm and 1.2mm from the Plateau de Bure Interferometer (PdBI), imaging the two nuclear disks in H$^{13}$CN$(1 - 0)$ and $(3 - 2)$, H$^{13}$CO$^+(1 - 0)$ and $(3 - 2 ...
Carpio, J. Graciá, Fischer, J., Fuente, A, Garcia-Burillo, S., González-Alfonso, E., Greve, T. R., Hailey-Dunsheath, S., Neri, R., Planesas, P., Sturm, E., Tunnard, R., Usero, A.   +11 more
core   +2 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Synthesis, nanocrystalline morphology, lattice dynamics and nonlinear optics of mesoporous SiO2&LiNbO3 nanocomposite

Scientific Reports
We demonstrate a hybrid nanocomposite combining mesoporous silica, p $$\hbox {SiO}_2$$ SiO 2 , as a host medium and guest lithium niobate $$\hbox {LiNbO}_3$$ LiNbO 3 nanocrystals embedded into tubular silica nanochannels by calcination of the precursor ...
Yaroslav Shchur, Houda El Karout, Bouchta Sahraoui, Anatoliy Andrushchak, Guillermo Beltramo, Denys Pustovyi, Svetlana Vitusevich, Patrick Huber, Andriy V. Kityk   +8 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Exploring the Application Potential and Performance of SiO₂ Aerogel Mortar in Various Tunnel High-Temperature Environments

Fire, 2023
SiO2 aerogel is a super-insulating material that can be used for tunnel fireproofing to eliminate high-temperature spalling and extend the safe evacuation time of personnel.
Hongyun Chen, Pinghua Zhu, Xiancui Yan, Xiaoyan Xu, Xinjie Wang   +4 more
doaj   +1 more source