Results 31 to 40 of about 25,648 (262)

Review on the Versatility of Tungsten Oxide Coatings [PDF]

physica status solidi (a), 2019
Tungsten oxide is a versatile material with many advantages such as large availability and low fabrications costs. Additionally, it is suitable to be produced in the form of thin films or coatings, which makes it very attractive for many applications.
Cezarina C. Mardare, Achim W. Hassel
openaire   +2 more sources

Effect of Secondary Reduction of Tungsten Powder on the Properties of W-Ni-Fe Alloy Fabricated by Spark Plasma Sintering [PDF]

Journal of Advanced Materials in Engineering
Introduction and Objective: The aim of this research is to investigate the effect of secondary tungsten powder reduction on the physical and mechanical properties of tungsten heavy alloys (WHAs) consolidated by the spark plasma sintering (SPS) method ...
Mohammad Hosein Kaveh, Gholam Hossein Borhani, Saeed Reza Bakhshi   +2 more
doaj   +1 more source

Hybrid Nanostructures Obtained by Transport and Condensation of Tungsten Oxide Vapours onto CNW Templates

Nanomaterials, 2021
We present hybrid nanomaterial architectures, consisting of carbon nanowalls (CNW) templates decorated with tungsten oxide nanoparticles, synthesized using a mechanism based on tungsten oxide sublimation, vapor transport, followed by vapor condensation ...
Lavinia Gabriela Carpen, Tomy Acsente, Veronica Sătulu, Elena Matei, Sorin Vizireanu, Bogdan Ionuț Biță, Gheorghe Dinescu   +6 more
doaj   +1 more source

Electronic Structure of Thermally Oxidized Tungsten

Physics of the Solid State, 2021
Abstract The electronic structure of thermally oxidized tungsten used as an emitter in thermal ionization of organic molecules is studied. Tungsten foil was thermally oxidized at oxygen pressure 1 Torr and temperature 950 K. The photoemission spectra from the valence band and O 2s and W 4f core levels are studied under synchrotron ...
S N Timoshnev, P A Dementev, E V Dementeva, M N Lapushkin, D A Smirnov   +4 more
openaire   +1 more source

Fabrication of oxygen-defective tungsten oxide nanorods for deep oxidative desulfurization of fuel

Petroleum Science, 2018
Owing to the increasingly serious environmental issues caused by the sulfur burnt in fuel, desulfurization has become an important topic. In this work, an amphiphilic oxygen-defective tungsten oxide was synthesized by a colloidal chemistry method.
Haibin Sun, Peiwen Wu, Jing He, Mingyang Liu, Linhua Zhu, Fengxia Zhu, Guangying Chen, Minqiang He, Wenshuai Zhu   +8 more
doaj   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +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

Impedance Spectroscopy of Electrochromic Hydrous Tungsten Oxide Films

Electronic Materials, 2021
Tungsten oxide is a widely used electrochromic material with important applications in variable-transmittance smart windows as well as in other optoelectronic devices.
Esat Pehlivan, Claes G. Granqvist, Gunnar A. Niklasson   +2 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Exploring the electronic structure and lithium diffusion kinetics of amorphous tungsten oxide

AIP Advances
Density functional theory-based characterization of crystalline tungsten oxide has been well established. Nonetheless, there remains a partial gap in theoretical studies concerning the electrochemical characterization of amorphous tungsten oxide.
Chao Tang, Huachen Liu, Changlong Cai
doaj   +1 more source