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Interaction between Hydrogen and Magnesium Films: From Hydrogenochromism to Applications.
ACS Appl Mater Interfaces
January 2025
National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
Hydrogen, as a promising clean energy carrier, underscores the critical need for reliable detection technologies to ensure its safe and efficient use. Magnesium (Mg) thin films, with their hydrogenochromic properties, are particularly well-suited for hydrogen sensing applications due to their dramatic optical transitions. However, practical implementation faces challenges in achieving both rapid response and durability under cyclic conditions.
View Article and Find Full Text PDFWhisker-free lithium electrodeposition by tuning electrode microstructure.
Phys Chem Chem Phys
January 2025
N.N. Semenov Federal Research Center for Chemical Physics, Kosygina str 4, Moscow 119991, Russia.
Growth of lithium whiskers or dendrites is the major obstacle towards safe and stable utilization of lithium metal anodes in rechargeable batteries. In this study, we look deeper into the mechanism of lithium electrodeposition. We find that before lithium whisker or dendrite nucleation occurs, lithium is deposited into the grain boundaries of the metal electrode, which we directly observed in the focused ion beam cross-sections of the lithium electrode.
View Article and Find Full Text PDFDynamic Reconstruction of the Nickel Ions' Behavior in Different Orthodontic Archwires Following Clinical Application in an Intraoral Environment.
Materials (Basel)
December 2024
G. Nadjakov Institute of Solid-State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee, 1784 Sofia, Bulgaria.
: Orthodontic archwires undergo chemical and structural changes in the complex intraoral environment. The present work aims to investigate the safe duration for intraoral use (related to the nickel release hypothesis) of different types of nickel-containing wires. By analyzing how the nickel content (NC) varies over time, we aim to provide practical recommendations for the optimal use of said archwires.
View Article and Find Full Text PDFAnomalies in Long-Crack Propagation at Low ΔK in Some Engineering Alloys.
Materials (Basel)
December 2024
TDA Inc., Falls Church, VA 22043, USA.
In this article, we discuss an unusual pattern in long-crack behavior at low stress intensity factor ranges ΔK (below ΔK), characterized by an initial dip, followed by a plateau, and then an acceleration in fatigue crack growth (FCG) rate. This unanticipated FCG behavior was first observed experimentally in the IMI 834 alloy and reported by Marci in 1996. Such an anomaly is only reported from experimental observation but cannot be understood or explained using the plasticity, roughness, or oxide-induced crack closure assumptions.
View Article and Find Full Text PDFEstablishing a Novel Animal Model of Tricuspid Regurgitation by Self-expanding Stent.
Ann Ital Chir
December 2024
Department of Cardiovascular Surgery, Shaoxing People's Hospital, 312000 Shaoxing, Zhejiang, China.
Article Synopsis
- The aim of the study was to create a reproducible animal model of tricuspid regurgitation (TR) using a self-expanding nickel-titanium stent.
- The experiment involved 10 pigs, 7 in the experimental group undergoing TR induction through stent implantation, while 3 served as controls without the stent.
- Results showed significant changes in cardiac structure and function in the experimental group, indicating successful model establishment with no fatalities, making this approach effective for further research on right ventricular issues.
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