Deposition rate controls nucleation and growth during amorphous/ nanocrystalline competition in sputtered Zr-Cr thin films

Article Chemistry, Physical

Microstructures, wear resistance and corrosion resistance of CoCrFeNi high entropy alloys coating on AZ91 Mg alloy prepared by cold spray

Jian Zhu et al.

Summary: A fully dense CoCrFeNi high entropy alloys (HEAs) coating with uniform microstructure was successfully prepared on AZ91 alloy by cold spray, exhibiting excellent corrosion resistance and surface protection for Mg alloys.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Physical

Comparison of two-step surface treatment on surface roughness and corrosion resistance of TC4 alloy parts prepared by SLM and SEBM

Xin Yang et al.

Summary: This study employs a two-step surface treatment technology to improve the surface defects and quality of parts fabricated by selective laser melting (SLM) and selective electron beam melting (SEBM). The results show that the two-step surface treatment effectively reduces the step effect of the original samples and enhances the corrosion resistance through micro-arc oxidation (MAO) coating.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Physical

Antibacterial Ti-35Nb-7Zr-xCu alloy with excellent mechanical properties generated with a spark plasma sintering method for biological applications

ChangBo Yi et al.

Summary: This study investigated the density, microstructure, mechanical properties, and antibacterial properties of Ti-35Nb-7Zr-xCu alloys, as well as the influence of Cu element on these properties. The results showed that the Ti-35Nb-7Zr-10Cu alloy with 10 wt% Cu exhibited the best combination of mechanical and antibacterial properties, making it suitable for human hard tissue replacements.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Physical

Composition-driven transition from amorphous to crystalline films enables bottom-up design of functional surfaces

A. Borroto et al.

Summary: The composition-driven transition from the amorphous to the crystalline state in thin films offers a new avenue for the fabrication of hybrid crystalline-amorphous architectures. The peculiar morphology of these nano(micro)structured films provides a simple bottom-up route for obtaining adjustable multifunctional surfaces. The growth kinetics of the formed two-phase nanostructures is demonstrated equivalent to a 2-dimensional amorphous-to-crystalline phase transformation, showcasing the feasibility of this approach for controlling surface morphology and related functional properties in thin films.

APPLIED SURFACE SCIENCE (2021)

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Article Chemistry, Physical

Corrosion and antibacterial performance of novel selective-laser-melted (SLMed) Ti-xCu biomedical alloys

Hairui Ji et al.

Summary: Ti-xCu biomedical alloys prepared by selective laser melting show good antibacterial properties, with the optimal Cu content being 3 to 5 wt%. The hardness of the alloys increases with higher Cu content, and the size of Ti2Cu particles and grain size decrease as Cu content increases.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Physics, Applied

Growth kinetics and origin of residual stress of two-phase crystalline-amorphous nanostructured films

A. Borroto et al.

Summary: This study investigates the growth kinetics of two-phase nanostructures formed in sputter-deposited thin films and how residual stress in the transition zone is governed by the nucleation, growth, and interaction of crystalline regions. The analysis of relevant parameters extracted from scanning electron microscopy images sheds new light on the kinetics of the crystalline-amorphous competitive growth phenomenon and the importance of residual stress measurements in exploring complex film microstructure growth mechanisms.

JOURNAL OF APPLIED PHYSICS (2021)

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Article Materials Science, Multidisciplinary

Self-formation of dual glassy-crystalline structure in magnetron sputtered W?Zr films

P. Zeman et al.

Summary: A unique dual glassy-crystalline structure has been observed in a binary W-Zr system film, influenced by the elemental composition and diffusivity or mobility of sputtered adatoms.

VACUUM (2021)

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Article Chemistry, Physical

Construction of NiCo/graphene nanocomposite coating with bulges-like morphology for enhanced mechanical properties and corrosion resistance performance

Mohammad Tabish et al.

Summary: Coatings of NiCo and NiCo/rGO were constructed onto Q235 carbon steel surface through an electrochemical co-deposition process, achieving good mechanical properties and corrosion resistance. The addition of rGO nanoplatelets resulted in enhanced mechanical properties, unique morphology, higher microhardness, and improved corrosion resistance compared to NiCo coatings.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Physical

Materials and structure engineering by magnetron sputtering for advanced lithium batteries

Yitian Ma et al.

Summary: Magnetron sputtering is a physical vapor deposition technique widely applied in the preparation and modification of materials for lithium batteries, offering advantages such as fast deposition speed and easy control. This technique plays a crucial role in the evolution of different battery components, particularly in the fabrication of artificial solid-electrolyte interphase films on high specific energy anode surfaces, showing potential for future development in lithium batteries.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Physical