Results 31 to 40 of about 1,265 (220)

Preparation, microstructure, and mechanical properties of spinel-corundum-sialon composite materials from waste fly ash and aluminum dross [PDF]

open access: yes, 2016
This is the final version of the article. Available from the publisher via the DOI in this record.The solid wastes fly ash and aluminum dross were used to prepare the low cost, high added-value product spinel-corundum-Sialon with an in situ ...
Chen, K   +9 more
core   +1 more source

Aluminothermic Reduction of Titanium Oxide

open access: yesMaterials Transactions, JIM, 1993
Titanium is produced conventionally by a chloride based technique, the Kroll method, but chlorination in this production process is complicated and costly. Hence, in order to find a much simpler and less costly method, the possibility of developing a less expensive means of producing titanium has been examined using a combination of aluminothermic ...
Masafumi Maeda   +3 more
openaire   +2 more sources

Novel Approach to Prepare Magnesium and Mg-Al Alloy from Magnesia by Using the Closed Microwave Aluminothermic Method

open access: yesMetals, 2023
Herein, we report a novel approach to obtaining magnesium and nanocrystal Mg-Al alloy from magnesia using a closed microwave aluminothermic method in order to solve the problems of high energy consumption, high pollution, and low productivity in the ...
Teng Zhang   +5 more
doaj   +1 more source

Synthesis of FeSi-Al2O3 Composites by Autowave Combustion with Metallothermic Reduction

open access: yesMetals, 2021
Fabrication of FeSi-Al2O3 composites with a molar ratio of FeSi/Al2O3 ranging from 1.2 to 4.5 was conducted by the self-propagating high-temperature synthesis (SHS) method.
Chun-Liang Yeh, Kuan-Ting Chen
doaj   +1 more source

The effect of white etching layer patches on a larger rail defect [PDF]

open access: yes, 2017
Manufacturing defects such as porosity that formed in the rail could result in catastrophic failure if it remain in service. In this study, a crack that initiated from a large void was modelled using boundary element model to investigate the effect of ...
Cannon   +8 more
core   +3 more sources

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

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

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

Mechanochemical synthesis of ZrB2-SiC-ZrC nanocomposite powder by metallothermic reduction of zircon [PDF]

open access: yes, 2013
Aluminium and magnesium were used in the M/ZrSiO4/B 2O3/C (M = Al, Mg) system to induce a mechanically induced self-sustaining reaction (MSR). Aluminium was not able to reduce the system to the desired products, and the system became amorphous after 10 h
Bafghi, M. Sh   +3 more
core   +1 more source

Microstructural Master Alloys Features of Aluminum–Erbium System

open access: yesCrystals, 2021
Aluminum master alloys with rare earth metals are widely studied by many scientists around the world, but research on the production of Al-Er master alloys is still limited.
Sergey Savchenkov   +4 more
doaj   +1 more source

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