Results 31 to 40 of about 965 (205)

Photocatalytic and eletrocatalytic activity of black TiO2 nanotube arrays by aluminothermic reduction

open access: yesMicro &Nano Letters, Volume 18, Issue 1, January 2023., 2023
Abstract The black TiO2 nanotubes arrays were prepared by anodizing and aluminothermic reduction process. The prepared samples were characterized by X‐ray diffraction (XRD), SEM, UV‐visible absorption spectroscopy and X‐ray photoelectron spectroscopy (XPS).
Bingchen Li   +4 more
wiley   +1 more source

Progress in the Preparation of Large‐Size High‐Performance CuCr Alloys

open access: yesAdvances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
CuCr contact material, whose mass fraction of Cr is generally in the range of 25% to 50%, is one of the most desirable contact materials for medium‐ and high‐voltage vacuum switches. The homogeneity and denseness of CuCr alloy are the keys to its application.
Jin-Ru Han   +4 more
wiley   +1 more source

Elaboration of the Al‐Al3Ni Alloy Eutectic by a Carbothermal Process

open access: yesThe Scientific World Journal, Volume 2022, Issue 1, 2022., 2022
The present study develops an elaborate method of materials Al‐Al3Ni by carbothermic reduction of nickel oxide from the decomposition of Ni(NO3)2.4H2O mixed with aluminum powder. This nitrate salt represents the source of nickel for an elaboration of these materials.
Imane Bahaj   +3 more
wiley   +1 more source

Semi-empirical software for the aluminothermic and carbothermic reactions

open access: yesMetallurgical and Materials Engineering, 2014
Understanding the reaction thermochemistry as well as formatting the empirical data about element distribution in gas-metal-slag phases is essential for creating a good model for aluminothermic and carbothermic reaction. In this paper modeling of material and energy balance of these reactions is described with the algorithm. The software, based on this
Gavrilovski, Milorad   +4 more
openaire   +4 more sources

Formation mechanism of Fe-Mo master alloy by aluminothermic reduction of MoS2-Fe2O3 in the presence of lime [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2018
The reaction mechanism of MoS2-Fe2O3 aluminothermic reduction in the presence of lime using microwave-assisted combustion synthesis method was surveyed. Achieving technical feasibility in one-step production of ferromolybdenum along with sulfur removing ...
Golmakani M.H.   +2 more
doaj   +1 more source

Effects of Fe/Si Stoichiometry on Formation of Fe3Si/FeSi-Al2O3 Composites by Aluminothermic Combustion Synthesis

open access: yesMetals, 2021
Aluminothermic combustion synthesis was conducted with Fe2O3–Al–Fe–Si reaction systems under Fe/Si stoichiometry from Fe-20 to Fe-50 at. % Si to investigate the formation Fe3Si/FeSi–Al2O3 composites. The solid-state combustion was sufficiently exothermic
Chun-Liang Yeh   +2 more
doaj   +1 more source

Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space [PDF]

open access: yes, 2017
We report on a fragment of the quasicrystal-bearing CV3 carbonaceous chondrite Khatyrka recovered from fine-grained, clay-rich sediments in the Koryak Mountains, Chukotka (Russia).
Andronicos, Christopher L.   +6 more
core   +2 more sources

Micro/nano-structure leads to super strength and excellent plasticity in nanostructured 304 stainless steel

open access: yesJournal of Materials Research and Technology, 2022
Micro/nano-structure is one of the important types of multilayer construction, which can make nanocrystalline metals and alloys with excellent comprehensive mechanical properties.
Jie Sheng   +10 more
doaj   +1 more source

Nanoenergetic Materials for MEMS: A Review [PDF]

open access: yes, 2007
New energetic materials (EMs) are the key to great advances in microscale energy-demanding systems as actuation part, igniter, propulsion unit, and power.
Alphonse, Pierre   +5 more
core   +2 more sources

Study of the aluminothermic reduction of niobium pentoxide through thermal analysis experiments and high energy milling processing

open access: yesMaterials Research, 2007
Aluminothermic reduction of niobium pentoxide was studied through thermal analysis techniques such as differential thermal analysis (DTA) and thermogravimetry (TG) as well as through high energy milling processing.
Claudio Parra De Lazzari   +2 more
doaj   +1 more source

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