Results 101 to 110 of about 138,744 (304)

Oxidation of Aluminium-Magnesium alloys at elevated temperature in the solid, semi-liquid and liquid states

open access: yes, 1987
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Sensitive thermogravimetric equipment was used to monitor the oxidation rates of A1-1 to 9% Mg alloys in 0.21 oxygen/0.79 helium mixtures with and without 0.
Silva, MP, Silva, M.P
core  

Laser microsculpting for the generation of robust diffractive security markings on the surface of metals

open access: yes, 2015
We report the development of a laser-based process for the direct writing (‘microsculpting’) of unique security markings (reflective phase holograms) on the surface of metals.
Wlodarczyk, Krystian Lukasz   +18 more
core   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

open access: yesAdvanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm   +3 more
wiley   +1 more source

Controllable Flow and Manipulation of Liquid Metals

open access: yes, 2023
This review summarizes the controllable flow and manipulation of gallium-based liquid metals (e.g., eutectic gallium indium, EGaIn). There are generally only a few ways to handle fluids, but liquid metals offer versatile control due to their properties ...
Yahua He (4372225)   +3 more
core  

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

The influence of platinum washing-out time on its recovery from used auto catalytic converters

open access: yesMetalurgija, 2014
The used catalytic converters contain small amounts of precious metals. Recovery of these metals is essential for environmental and economic reasons. This work presents a method of Platinum Group Metals (PGM) recovery from auto catalytic converters in ...
A. Fornalczyk, M. Saternus, J. Willner
doaj  

Electroluminescent Liquid Metal Marbles for Reconfigurable Multi‐Color Display

open access: yesAdvanced Science
Conventional display technologies rely on rigid architectures, limiting their adaptability for reconfigurable systems. Plasma discharge, as a field‐driven excitation method, offers great opportunities for visual interfaces, yet integrating it into ...
Ruohan Yu   +8 more
doaj   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

Hydrogen Adsorption on Solid and Liquid Surfaces of Ga–Sn and Ga–In

open access: yesAdvanced Materials Interfaces
Dynamic liquid metal catalysts have remarkable activity and selectivity toward certain reactions, such as carbon dioxide reduction. The surface hydrogen coverage may play a role in this, including controlling competing reactions such as hydrogen ...
Charlie Ruffman   +3 more
doaj   +1 more source

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