Journal ArticleDOI
Wettability and spreading kinetics of molten aluminum on copper-coated ceramics
TLDR
In this paper, the influence of Cu-coating on the spreading kinetics and equilibrium contact angles of aluminum on ceramics using a sessile drop technique was investigated.Abstract:
The purpose of this study was to investigate the influence of Cu-coating on the spreading kinetics and equilibrium contact angles of aluminum on ceramics using a sessile drop technique. Al2O3 and SiC plates were coated by electroless plating. The copper film overcomes the low wetting of the uncoated samples by dissolution in the drop at 800 °C in argon, showing an intrinsically favorable effect on the adhesion energy. Just after 2 min, the contact angle decreased to 12.6° and 26°for Al/Cu–Al2O3 and Al/Cu–SiC, respectively. However, a de-wetting behavior was observed, reaching equilibrium contact angles of 58.3° and 45.5° for the couples. The dissolution reaction rate at the triple junction was so high that the spreading process was controlled by local diffusion rather than chemical reaction kinetics.read more
Citations
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Degradable biomaterials based on magnesium corrosion
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TL;DR: Magnesium and its alloys have been investigated recently by many authors as a suitable biodegradable biomaterial as mentioned in this paper, and the latest achievements and comment on the selection and use, test methods and the approaches to develop and produce magnesium alloys that are intended to perform clinically with an appropriate host response.
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Additive manufacturing: technology, applications and research needs
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Silicon quantum electronics
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Zinc Oxide Nanoparticles: Synthesis, Antimicrobial Activity and Food Packaging Applications
Paula J.P. Espitia,Nilda de Fátima Ferreira Soares,Jane Sélia dos Reis Coimbra,Nélio José de Andrade,Renato Souza Cruz,Eber Antonio Alves Medeiros +5 more
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References
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Book
Aluminum: Properties and Physical Metallurgy
TL;DR: Aluminum as mentioned in this paper is a collection of 53 recognized experts on aluminium and aluminium alloys Joint venture by world renowned authorities-the Aluminium Association Inc. and American Society for Metals.
Book
Wettability at high temperatures
TL;DR: Wetting properties of metal and non-metallic compounds have been studied in this paper, where surface and interfacial energies in solid / liquid / vapour systems have been analyzed.
Journal ArticleDOI
Ridging effects on wetting and spreading of liquids on solids
TL;DR: In this article, four time regimes of interest are identified for the triple junction of a liquid on a solid, and a range of conditions exist wherein it is possible to satisfy the classical Young equation macroscopically and a more complete equilibrium locally, and at longer times more complex geometries will prevail while the system is evolving toward equilibrium.
Journal ArticleDOI
The influence of nickel coating on the wettability of aluminum on ceramics
C. A. León,Robin A. L. Drew +1 more
TL;DR: The wetting behavior and interfacial phenomena of plain and nickel-coated alumina and silicon carbide ceramics with liquid aluminum at 800°C was investigated in this paper.
Journal ArticleDOI
Aluminium-alumina interface morphology and thermodynamics from dewetting experiments
George Levi,Wayne D. Kaplan +1 more
TL;DR: In this paper, the morphology of micron-sized metallic drops (Al) equilibrated on ceramic substrates (sapphire), with emphasis on the interfacial region, was presented.