Nowadays, magnesium alloys are emerging in biomedical implants for their similar properties to natural bones. However, the rapid degradation of magnesium alloys in biological media hinders successful implantation. Refinement of microstructure, as well as reinforcement particles can significantly improve the degradation rate. In this work, multi-pass friction stir processing (FSP) was proposed to synthesize

In order to obtain a more protective phosphate conversion coating with a denser architecture, the nucleation kinetics of phosphate chemical conversion coating on Mg-Gd-Y-Zr magnesium alloy was tuned in this work. A pretreatment process was proposed and organic additives were incorporated, which aims at increasing the ionic produce (Jsp) at the interface for increasing σ, and decreasing the critical

In order to obtain Mg alloys with fine microstructures and high mechanical performances, a novel friction-based processing method, name as “constrained friction processing (CFP)”, was investigated. Via CFP, defect-free Mg-Zn-Ca rods with greatly refined grains and high mechanical properties were produced. Compared to the previous as-cast microstructure, the grain size was reduced from more than 1 mm

Hot deformation with high strain rate has been paid more attention due to its high efficiency and low cost, however, the strain rate dependent dynamic recrystallization (DRX) and texture evolution in hot deformation process, which affect the formability of metals, are lack of study. In this work, the DRX behavior and texture evolution of Mg-8Gd-1Er-0.5Zr alloy hot compressed with strain rates of 0

Bismuth has garnered significant interest as an anode material for magnesium batteries (MBs) because of its high volumetric specific capacity and low working potential. Nonetheless, the limited cycling performance (≤100 cycles) limits the practical application of Bi as anode for MBs. Therefore, the improvement of Bi cycling performance is of great significance to the development of MBs and is also

This study presents a facile and rapid method for synthesizing novel Layered Double Hydroxide (LDH) nanoflakes, exploring their application as a photocatalyst, and investigating the influence of condensed phosphates’ geometric linearity on their photocatalytic properties. Herein, the MgO film, obtained by plasma electrolysis of AZ31 Mg alloys, was modified by growing an LDH film, which was further

Ureteral stents play a fundamental role in modern time urology. However, following the deployment, stent-related symptoms are frequent and affect patient health and quality of life. Using biodegradable metals as ureteral stent materials have emerged as a promising strategy, mainly due to the improved radial force and slower degradation rate expected. Therefore, this study aimed to characterize different

As the lightest structural metal and one of the most abundant metallic elements on earth, magnesium (Mg) has been used as an “industrial metal” for lightweighting in the transportation and electronics industries, in addition to other traditional applications in aluminum alloying, steel desulfurization and protective anodes. In recent years, research has shown significant potential for Mg to become

Reducing the grain sizes of tungsten (W) in tungsten heavy alloys (WHAs) is pivotal for achieving high strength. Traditional liquid phase sintering (LPS) often results in the growth of W grains, due to the long sintering time and slow cooling rates. To achieve a high cooling rate, a laser melting deposition (LMD) additive manufacturing technique was employed in this study to prepare 90W-7Ni-3Fe alloys

A strategy approach to synthesizing nickel phosphide is essential for enhancing its electrocatalytic performance in hydrogen evolution reactions (HER) through water splitting. Different NixPy compositions and phases display varying electrocatalytic properties. This study successfully synthesized various NixPy (Ni2P-Ni (OH)2, Ni5P4-Ni2P, Ni5P4, and Ni2P-Ni12P5 by modulating key parameters. The synthesis

Manipulation of phase transition is of great interest not only because it can enhance the application ability of accompanying physical effects, but also because it allows us to uncover the physical connotations near the critical temperature point. In this work, we systematically examine the influence of high-pressure annealing (HPA) on critical phenomena in Gd5Si4 ferromagnet. A second-order magnetic

Powder x-ray diffraction and Raman spectroscopy studies showed In-rich thiospinels with the chemical formula In1−y@yIn2S4−xTex (y ≈ 0.16, 0.22 and x ≈ 0.1, 0.2) to be composed of the cubic α-modification [space group (SG) Fd3̅m] with a minor admixture of tetragonal β-phase (SG I41/amd). Tellurium incorporation in the crystal structures is confirmed by Rietveld refinements, energy dispersive x-ray-

Sluggish polysulfide conversion (SPC) process combined with shuttling effect and poor electronic conductivity of sulfur become the main obstacles in hindering the commercial application of Li-S battery. In this study, to address these issues, CAU-17 derived bismuth nanoparticels embedded in nitrogen doped carbon belts is proposed as a catalyst layer on separator for high performance Li-S batteries

Several types of dislocations were found in CdWO4 single crystals. In-grown dislocations slip on (100) plane parallel to [001]. Dislocation pits were revealed in mechanically polished samples on (100) and (010) planes. Based on the results of chemical etching, it was inferred that the lattice dislocations gliding along <001> and <100> can split into partial dislocations. In the samples annealed at

Magnesium hydride (MgH2) is a promising hydrogen storage material with high weight and volume hydrogen capacity. However, higher operating temperature and reversible hydrogen capacity decay inhibit its wide application. To address these issues, Mg-Mg2Ni/C was obtained by ball milling magnesium and nickel-Metal Organic Framework (Ni-MOF), and following calcinations. Initial dehydrogenation temperature

Thin-walled FeCrAl alloy tubes emerge as significant contenders for substituting zirconium alloy cladding tubes. Enhancing the surface strength and corrosion resistance of these tubes is essential for their industrial utilization. Cryogenic laser treatment emerges as a promising technique for enhancing the surface corrosion resistance of Nb-containing FeCrAl alloy. A comprehensive investigation was

In recent years, NIR-II-type fluorophores with emission wavelengths within the 1000–1700 nm range have garnered widespread attention in the field of bioimaging due to their high tissue penetration ability. Here, Mn-doped BaAl2O4, Ba3Al2O6, and Ba7Al2O10 with NIR-II-type luminescence were synthesized by solid-phase or liquid-phase methods. Confirmed by XPS and EDS analysis, Mn is found uniformly distributed

Novel methods of separation and purification are envisaged for natural uranium, containing 0.7% of fissile 235U, a precious resource that fuels nuclear power plants. The present study demonstrates Solid phase extraction (SPE) of uranium as a sustainable alternative to conventional liquid-liquid extraction, leading to minimisation of organic inventory and enhancement of ease of operation concerning

Metallic binders impart necessary toughness to ceramic-metal composites, yet are vulnerable to corrosion and wear. Thus far, the tribocorrosion mechanism remains little understood, obstructing the design of durable composites for ocean drilling applications. Against this backdrop, we selected the TiC-based composites encompassing the Ni and Co binders having different standard electrode potentials

In machining process, the wear of tungsten‑cobalt carbide cutting tools (WC-Co) is the result of different wear mechanisms such as abrasion, adhesion and diffusion. At the microstructure scale, the presence of microcracks in the carbide grain boundaries can be observed of the tool and in the WC/Co interfaces on the cutting surface. These microcracks are the cause of the WC-Co pull-out clusters from

Herein, intense red electroluminescence (674 nm) in a La0.7Sr0.3MnO3(LSMO)-SrRuO3(SRO) thin films heterostructure obtained by RF-magnetron sputtering is reported for the first time. This novel phenomenon may open a new door in the field of optoelectronics and new generation devices based on multiferroic heterostructure. The structural properties were analyzed using grazing incidence x-ray diffraction

This study aimed to modulate the magnetic properties of selective laser melting NiFeMo alloy. This was achieved via the controlled addition of Mo elemental in-situ alloying content to change the tissue morphology and crystal structure of SLM-formed (NiFeMo)100−xMox alloy (x = 0 wt%, 0.25 wt%, 0.5 wt%, 0.75 wt%, 1.0 wt%, 1.25 wt%, 1.5 wt%, 2.0 wt%). The results of scanning electron microscopy (SEM)

In magnetostrictive RFe2 (R – rare earth) materials, magnetic properties such as magnetocrystalline anisotropy and Curie temperature can have a profound impact on the magnetostriction, often reducing its value in practically applicable magnetic field at normal conditions. Tuning the atomic structure by Mn alloying is one of the research strategies that allows to improve both elastic and magnetoelastic

Boron-doped diamond (BDD) is expected as a promising semiconductor candidate for potential application in next-generation high-power and high-voltage electronics. Unfortunately, a feasible strategy that focuses on the improvement for the semiconducting performance of BDD materials is still lack and remains a fundamental challenge in material science. Thus, we aim to study the stability and adjustment

The mechanical properties and corrosion resistance of binderless tungsten carbide largely determine its performance and lifespan in complex industrial environments. Herein, WC-1Y2O3-xSiCw (x = 0, 0.5, 1, and 2 wt%) was prepared using the hot-press sintering. The mechanical properties of the composite, as well as the corrosion resistance of optimized mechanical properties in an aggressive medium (0

Unique rapid solidified structure and nanocrystallization mechanism enable the Fe-based nanocrystalline alloys with high Cu content excellent soft magnetic properties and good manufacturability, and also results in unusual phenomena in terms of alloying effects. In the present work, we systematically studied the influence rules of early transition elements on the rapid solidified structure and nanocrystallization

Heap leaching is used extensively for the processing of low-grade copper and gold ores. If the ore has low permeability, it may lead to underperformance or even project failure. Poor permeability is caused by a high fines content, resulting in a high steady-state moisture hold-up which causes the bed to operate close to saturation. The problem of low permeability can be addressed by either desliming

Electromagnetic interference (EMI) shielding is critical for protecting electronic devices from interference generated by various sources such as power lines, radio waves, microwaves, and electronic devices. In this current study, we present a thorough investigation of the structural, magnetic, and electromagnetic properties of Y3+ doped M-type barium nano hexaferrites. Polycrystalline BaFe12-xYxO19

We successfully prepare LiFePO4 nanosheets with a primary particle linearity of only 50-80 nm with the {010} facet as the main exposed surface by using the mixed-solvent method, and control their agglomeration morphology by using ethylene glycol, diethylene glycol, and triethylene glycol (EG, DEG, and TEG) as the inducing agents, which solves the problem of the irregular agglomeration of the nanoparticles

Structural tuning of CoFe2O4 nanoparticles by doping with rare earth (La3+) ions stands out as a novel technique to tune their physical properties and to provide new nanocomposites for various applications. CoLaxFe2−xO4 (x = 0.0; 0.3; 0.6; 0.9; 1.2; 1.5) nanoparticles embedded in SiO2 (40 wt%) matrix were synthesized by sol-gel method and annealed at 400, 800 and 1200 °C. The effect of Fe3+ substitution

The more alloys we can make from metal scrap, the better. The present paper examines the prospect of making high entropy alloys (HEA) completely from existing commercial alloys. Three HEAs were fabricated from pure elemental billets and from scrap ingots with two different levels of impurities (2 wt% and 9 wt%): a Al0.3CoCrFeNi alloy with a single-phase FCC structure, a Al0.6CoCrFeNi alloy with a multi-phase

The characteristic of the γ′ strengthening phase plays a crucial role in the development of high performance nickel-based superalloys, which is strongly dependent on the kinetic behavior of γ′ precipitation. Herein, the precipitation kinetics of the nanoscale γ′ phase in Ni–10 Al–8.5 Cr–x Mo at% (x = 2, 3, and 4) quaternary alloys aged at 1073 K are investigated using CALPHAD-assisted phase field simulations

The photovoltaic effect driven by ferroelectric polarization shows great application potential in photovoltaic devices. Two-dimensional (2D) Ruddlesden-Popper perovskite molecular ferroelectric materials, which combine polarization and low band gap properties, occupy a promising position in this field. However, literature reports mostly focus on single crystal blocks, and film devices are rarely reported