Results 21 to 30 of about 175,535 (378)
Small molecule-assisted synthesis of carbon supported platinum intermetallic fuel cell catalysts
Nature Communications, 2022 Supported ordered intermetallic compounds exhibit superior catalytic performance over their disordered alloy counterparts in diverse reactions. But the synthesis of intermetallic compounds catalysts often requires high-temperature annealing that leads to
Tian-Wei Song +12 more
semanticscholar +1 more source
Nature Communications, 2022 Supported platinum intermetallic compound catalysts have attracted considerable attention owing to their remarkable activities and durability for the oxygen reduction reaction in proton-exchange membrane fuel cells.
W. Zeng +5 more
semanticscholar +1 more source
Phase-field simulation of γ' precipitates rafting and creep property of Co-base superalloys
Materials & Design, 2020 Co-base superalloys show attractive properties for the strengthening of γ'-Co3(Al,W) precipitates. Directional coarsening of γ' precipitates under external stress forms the rafting morphology, which plays a crucial role in the creep property.
Dong Wang +4 more
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Investigation on some factors affecting crack formation in high resistance aluminum alloys [PDF]
, 2017 Aluminum alloys having good mechanical properties are Al-Zn-Mg alloys (7xxx) and Al-Cu-Li alloys (Weldalite®). These alloys may be subjected to stress corrosion cracking.
Brotzu, A., Felli, F., Pilone, D.
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Study of defect formation in Al 7050 alloys [PDF]
, 2017 The Al 7050 alloy is an Al-Zn-Mg-Cu-Zr alloy having good mechanical properties. This alloy has been developed in order to overcome stress corrosion cracking problems that characterise 7xxx Al alloys.
Brotzu, A. +3 more
core +2 more sources
Journal of Materials Research and Technology, 2020 The two-dimensional phase-field simulation coupled with the sublattice model is utilized to simulate the γ′ precipitation in Ni-12 Al-x Cr at.% (x = 8, 9, 10) alloys aged at 1073 K for 831 h.
Shengshun Jin +4 more
doaj +1 more source
Impact of the Ultrasonic-Assisted Casting of an AlSi7Mg Alloy on T6 Heat Treatment
Metals, 2023 In this work, the effect of ultrasonic vibration during solidification on the aging kinetics of an AlSi7Mg alloy is investigated. With the ultrasonic equipment coupled to the mold walls, melt treatment was performed by two approaches: (i) fully above ...
Inês V. Gomes +3 more
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Behavior of platinum in the system of the matte-slag in the processing of copper-nickel materials [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2021 Copper-nickel sulfide ores are one of the main sources of platinum. One of the ways to extract precious metals from such ores involves melting of a concentrate in electric ore smelting furnaces, where the melt is divided into matte and slag.
Amdur A. +4 more
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Lanthanides extraction processes in molten fluoride media. Application to nuclear spent fuel reprocessing [PDF]
, 2009 This paper describes four techniques of extraction of lanthanides elements (Ln) from molten salts in the general frame of reprocessing nuclear wastes; One of them is chemical: the precipitation of Ln ions in insoluble compounds (oxides or oxifluorides);
Cassayre, Laurent +5 more
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Nature Communications, 2022 Intermetallic compounds formed from non-precious transition metals are promising cost-effective and robust catalysts for electrochemical hydrogen production.
Ruirui Song +10 more
semanticscholar +1 more source