Results 81 to 90 of about 17,299 (256)

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

open access: yesAdvanced 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   +9 more
wiley   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel   +6 more
wiley   +1 more source

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

"A self-contained British Empire in metals": metals stockpiling, imperial defence and business-government relations, 1914 – 1958

open access: yes, 2012
Reflecting on his career as managing director of the British Metal Corporation, the former Secretary of State for the Colonies and Conservative peer, Lord Chandos, remarked on the attempts by prominent industry figures in metals to create ‘a self ...
Perchard, Andrew
core  

Evaluating Energy Absorption Performance of Filled Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney   +2 more
wiley   +1 more source

Evaluation of mineral processing techniques to concentrate metals (Pb, Zn, Cu, Au) in mining residues at Baia Mare, Romania

open access: yes, 2019
International audienceRehabilitation of historical mining sites is a great matter of concern in the world. In European countries, under 2006/21/CE Directive, national inventories were performed and dedicated management regarding environment and sanitary ...
Bodénan, Françoise   +5 more
core  

Organometallic complexes featuring oligo-phenylene ethnylene ligands [PDF]

open access: yes, 2007
This thesis describes the synthesis and analysis of organometallic complexes that feature oligo-phenylene ethynylene based ligands. Chapter 1 introduces the general topic of molecular electronics and provides a general overview of the interest in ...
Wan Mohamed Zin, Wan Mohd Khairul   +1 more
core  

Waste Valorization: Recycling and Recovery of Critical and Strategic Metals

open access: yesMinerals
This Special Issue focuses on innovative approaches and methodologies for valorizing waste, including mineral waste and end-of-life (EoL) products, through the recycling and recovery of critical and strategic metals, including, but not limited to, rare earth elements, cobalt, copper, nickel, lithium, silver, aluminum, titanium, and silicon [...]
Srećko Stopić   +2 more
openaire   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Investments of Automotive Industry in Metals as Strategic Materials

open access: yes, 2020
This diploma thesis deals with the fundamental analysis of selected metals as commodities, for use in the production of batteries for electric vehicles, to hedge against changes in the price of physical raw materials.
Kubík, Ján
core  

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