Microalloying can potentially enhance the uniformity of the microstructure and mechanical properties of AlMgSc alloys. In this study, wire-arc directed-energy deposition (WA-DED) was performed to prepare AlMgScZr and AlMgScTi alloy deposits with self-developed wires, followed by a comparative analysis of their microstructure and mechanical properties to investigate the effects of two microalloying

In this study, a series of Al5Nb(25-x)Ti35Zr35Mox (x=0, 5, 10, 15 at% (atomic fraction), defined as Mo0, Mo5 Mo10 and Mo15, respectively) novel refractory high entropy alloys (RHEAs) was prepared by vacuum arc furnace. The effects of Mo content on the microstructure and mechanical properties of the alloy were systematically studied. The results show that the as-cast alloys exhibited a single BCC structure

Copper-based oxide materials have emerged as promising candidates for exploring low-dimensional magnetism due to their unique electronic and magnetic properties. Among these, Na3Cu2SbO6 stands out as a particularly intriguing compound for both experimental and theoretical investigations, owing to its distorted honeycomb lattice structure and the presence of spin-gap behavior. In this study, we conducted

Mullite-corundum ceramics with various mullite crystal structures were prepared by incorporating Fe2O3 into the ceramic powder. The impact of the Fe2O3 content on the morphological evolution and formation mechanism of mullite crystals, as well as the thermal shock resistance and enhancement mechanism of the ceramic, were investigated. The results show that Fe2O3 facilitates the formation of a low-viscosity

This study examined the impact of the Al/Sc atomic ratio on the electrical conductivity, mechanical properties, and thermal stability of pure copper. By regulating the Al/Sc atomic ratio within the range of 1 to 3, the microstructure of the alloy was characterized via OM, EBSD, and TEM, among other methods. The results demonstrated that when the Al/Sc atomic ratio was approximately 3, the overall performance

Two-dimensional (2D) ferroelectric materials hold great promise for revolutionizing non-volatile memory technologies and enabling the next generation of artificial intelligence hardware. α-In2Se3(2H), as a typical 2D ferroelectric material, is highly propitious to abundant functions of information devices due to its special inter-layer in-plane ferroelectric polarization. However, it is very difficult

Solid-state lithium batteries (SSBs) are poised to revolutionize energy storage, offering significant advantages over liquid electrolyte counterparts, including enhanced safety, higher energy density, and wider operating temperature ranges. This review explores the considerable opportunities presented by SSBs for next-generation energy storage applications and discusses recent advancements in solid-state

Photon-avalanche (PA) excitation of trivalent lanthanide ions is a fascinating mechanism in which the material is initially transparent to the exciting radiation. Through the participation of phonons from the host medium, some ions are promoted to an excited state. A series of cross-relaxation and excited-state absorption can double the number of excited ions with each iteration, leading to intense

We have synthesized single crystal samples of Ca3Rh4Sn13 by flux method, measured its transport, magnetic and thermodynamic properties. Experimental results show a bulk superconducting transition at Tc ∼ 8.4 K, employing the measured values of the specific heat Cp(T), the upper critical field Hc2, and the lower critical field Hc1, we estimated the density of the state at the Fermi level, electron-phonon

The twin grid structure enhances low-angle grain boundaries (LAGBs) in the γ phase, effectively storing and hindering dislocations to improve the high-temperature properties of TiAl alloys. Hf was added to Ti-47Al-6Nb-0.1C-1.6Ta alloy and related mechanisms were studied. The results indicate that the addition of Hf promotes the formation of a Hf-enriched γ phase (with an L10 structure, defined as the

High-performance rare-earth permanent magnets require the simultaneous optimization of saturation magnetization and stability in SmCo5. While single-element doping can enhance specific magnetic properties, it often falls short in coordinating multiple performance metrics, such as magnetization, anisotropy and structural stability. This study employs first-principles density functional theory (DFT)

Mn-Cu alloys are recognized as a promising class of high-performance damping materials, distinguished by their exceptional damping capacity (internal friction up to 0.06 after aging) and superior mechanical strength (tensile strength exceeding 500 MPa). The development of laser additive manufacturing technologies has revolutionized the fabrication of geometrically complex Mn-Cu alloy components, overcoming

Relatively poor shape memory effect (SME) of iron-based shape memory alloys (Fe-SMAs) limits their further applications. Although recent studies have demonstrated significant SME improvements in Fe‑SMAs using various tensile-based methods, their behavior under compressive loading remains underexplored. This study investigates the SME of Fe-SMAs under quasi-static and impact compressive loading, addressing

The continuous advancement of computing technology has led to an increasing demand for efficient data processing methods. As data processing tasks become increasingly complex, traditional von Neumann computing systems suffer from bottlenecks, limiting large-scale data handling and overall system performance. To overcome these limitations, neuromorphic computing, inspired by the structure and principles

NbMoCrTixAly high entropy alloy (HEA) films were fabricated on Ti6Al4V substrates using magnetron sputtering technique, and their composition, microstructure, mechanical performance, and fretting wear behavior were systematically studied. With increasing Ti and Al concentrations, the films exhibited a stable single-phase body-centered cubic (BCC) structure, aligning closely with the thermodynamic calculations

The Fe83.2-xCoxP10C6Cu0.8 amorphous alloys were synthesized by utilizing longitudinal magnetic field annealing (MF) with the aim of simultaneously improving the amorphous forming ability and soft magnetic properties. It is found that the amorphous forming ability and thermal stability of Fe83.2-xCoxP10C6Cu0.8 alloys are enhanced by Co addition while both MF and Co element doping effectively suppress

Strong attenuation capability and good impedance matching are necessary conditions for high-performance electromagnetic wave (EMW) attenuation materials, which are difficult to balance in the polymer-derived ceramics (PDCs) preparation process. In this work, the dielectric loss phase and wave-transparent phase are simultaneously obtained in SiBCN ceramics, endowing a strong EMW absorbing capability

To address the key scientific problem of insufficient charge separation efficiency in the photocatalytic systems, the solution in this study is to optimise the electric field within the interface by constructing metal-semiconductor ohmic heterojunctions. The MoWS2/ZnCdS (ZCMWS) composite catalysts with layered nanoflowers of MoWS2 modified nanoparticles of ZnCdS were successfully prepared by solvent-thermal

In this study, high-performance Al-Cu-Mg alloys are developed through powder high-energy ball milling, press-forming and rolling deformation. During the high-energy ball milling, mixed pure metal powders undergo mechanical alloying and grain refinement due to high-energy collision between particles and balls. Concurrently, a high-density of dislocations and stacking faults is introduced into the powders

This investigation presents the response of Ti-6Al-2Sn-4Zr-2Mo, manufactured using powder bed fusion with electron beam (PBF-EB), under combined tension-torsion loading. Combined loading experiments were conducted quasi statically, at a strain rate of 10-3 s-1, and dynamically at strain rates ranging between 500 s-1 and 2000 s-1. Quasi static experiments were carried out using a universal electro-mechanical

This study examined the gamma-ray and neutron shielding capabilities of cobalt ferrite (CoFe₂O₄), zinc ferrite (ZnFe₂O₄), and cobalt–zinc-doped ferrite (Co₀.₅Zn₀.₅Fe₂O₄) nanocrystals produced by the sol-gel auto-combustion method. The structural and morphological characteristics of the nanocrystals were evaluated using various characterization techniques. XRD, FTIR, UV-Vis, FE-SEM, and EDAX were used

To address the low yield strength of the Cr-Mn-Fe-Co-Ni high-entropy alloy (HEA) system, we employed a strategy of adding minor substitutional elements (SEs). Specifically, Cr20Fe20Co20Ni40 and Cr20Fe20Co20Ni35Al2.5Si0.5Cu1Ti1 HEAs were synthesized and studied to understand the impact of SEs on the mechanical properties and deformation mechanisms of the Cr-Mn-Fe-Co-Ni HEA system. The microstructures

An intense reddish orange phosphor Na3Bi5(PO4)6:Pr3+ was produced via solid state reaction approach. PXRD and SEM investigations were used to examine the crystal structure and particle shape. When excited under UV light with a wavelength of 485 nm, the photoluminescence emission spectrum displayed the distinctive highest intensity peak at 602 nm which corresponds to the Pr3+ emission band. The CIE

NiCo2S4 exhibits high theoretical specific capacitance, rendering it a promising candidate as an electrode material for supercapacitors. Nonetheless, inherent limitations such as low conductivity and agglomeration impair its electrochemical performance in practical applications. To address these two questions, NiCo2S4 nanoparticles were uniformly grown on the B/P/N/O co-doped carbon nanofiber film

Li-addition is often used in aluminum alloys, e.g., typically in the AlCuLi(Mg) alloy system, in order to further enhance their strength-to-weight ratio. However, little has been known about the effect and mechanism of Li-alloying on the microstructures and properties of automotive AlMgSi(Li) alloys. Using state-of-the-art characterization and testing instruments, here we report the enhanced properties

Additive manufacturing (AM) has revolutionized metal manufacturing. Indeed, AM of lightweight, mechanically resistant aluminum alloys is becoming increasingly popular in manufacturing. However, corrosion is a threat to aluminum alloy parts. AM produces a different microstructure which could be correlated with its corrosion resistance. In this study, the global and localized corrosion behavior of a

Even though resistive gas sensors are popular devices for gas detection, weak selectivity is still one of their shortages, limiting their usage in places with need for highly selective detection of a particular gas. Noble metals are characterized by their high catalytic activity and different work function than semiconducting materials, making them good choices for the enhancement of selective response

This study investigated the effects of ultrasonic surface rolling process (USRP) on the microstructure characteristics, mechanical properties, and wear behavior of Mg-1.9Mn-0.3Ce alloy. The results show that a typical gradient microstructure with refined grains and twins was formed in the cross-sectional plane of Mg-1.9Mn-0.3Ce alloy after USRP. As set pressure increases during USRP, the depth of the

The CoCrFeNiMo0.1 high-entropy alloy (HEAs)-coated TiC cermet powders, abbreviated as TiC@HEAs, were synthesized via spray granulation. Subsequently, CoCrFeNiMo0.1 coatings reinforced with varying contents of TiC@HEAs were fabricated using laser powder directed energy deposition (LP-DED). The microstructures of the LP-DED coatings consisted of unmolten TiC@HEAs particles, a transition region, and a

In this study, Copper-Cobalt-based granulated and non-granulated powders were investigated using Field-Assisted Sintering Technology (FAST) and conventional sintering. Phase composition analysis via Rietveld refinement of X-Ray Diffraction data demonstrated that the sintering method critically influenced the microstructural evolution. Conventional sintering of one of the investigated compositions (BOND1H)

The inhibitory effects of stress relaxation annealing on recrystallization and grain growth in 2195 alloys were investigated using electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), and tensile testing. The results indicate that stress relaxation annealing significantly improves the thermal stability of deformed 2195 alloys compared to conventional pre-recovery (PR) annealing