The development of artificial photosensitive synapses with high sensitivity and biomimetic properties that combine innovative concepts and neuromorphic architectures is crucial to achieving highly integrated and flexible intelligent visual systems. Recently, graphene heterostructure-based photosensitive synaptic transistors have been extensively studied for this purpose. However, compared to traditional

This work presents a method for determining the effective Young’s modulus (Eeffective) and Poisson ratio of small specimens of a ternary shape memory alloy (SMA), Cu-Al-Be. The alloys were synthesized uniformly and homogeneously using various concentrations of high purity metals and formed into slabs of different geometrical shapes. The phases and fractional quantities of each sub-alloy composing the

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

In the present study, the microstructure features and martensitic transformation behaviour of a Ni-Mn-Ga alloy were tailored by adjusting the Ag content. In addition, the effect of Ag content on the thermal stability was also explored. The results revealed that the non-modulated martensite phase and Ag particles coexisted in the Ni-Mn-Ga-Ag alloys. Different martensite variants were in the {112} type

The fabrication of environmentally friendly, semi-transparent, high-performance and cost-effective inorganic solar cells has been the subject of recent extensive study. One area of study involves incorporating one-dimensional nanostructures and high quality transparent conductive layers into the conventional thin film solar cell systems. The objective of this particular investigation was, therefore

Tetrataenite (L10-FeNi) has potential for application in next-generation permanent magnets. This compound is a rare-earth-free material comprising Fe and Ni, which are abundant elements. In addition, an extremely high uniaxial magnetocrystalline anisotropy (Ku) is expected for L10-FeNi because of the ordered arrangement of the elements. This study reports the magnetic properties of uniaxially oriented

Tin-based materials possess a high-capacity as a potential anode for Na-ion batteries (SIBs), but the inferior electric conductivity and sluggish reaction kinetics limit their further development. In this paper, we have successfully constructed multiphase structure SnO2/SnS/SnS2 by combining the electrochemical induction and in-situ hydrothermal method to effectively alleviate these problems. The continuous

This paper reports a comparative study of the amorphization of B2 structure of near-equiatomic NiTi and three other equiatomic binary B2 alloy systems, including AlFe, CuZr and FeTi. The study was conducted by means of molecular dynamics simulation on the effects of anti-site defects with in the B2 structure. It was found that anti-site defects cause severe random distortions to the B2 structures,

Low absolute strength becomes one major obstacle for the wider applications of low/no rare-earth (RE) containing Mg alloys. This review firstly demonstrates the importance of grain refinement in improving strength of Mg alloys by comprehensively comparing with other strategy, e.g., precipitation strengthening. Dynamic recrystallization (DRX) plays a crucial role in refining grain size of Mg wrought

ZnO nanoflowers (ZF) were successfully synthesized by a simple pH-controlled co-precipitation technique. Systematic investigations such as X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM) and Transmission Electron Microscopy (TEM) were carried out to confirm the structure and morphology of the sample. It has been found that the petals of the nanoflowers are composed of nanorods

High entropy oxides (HEOs) have gained significant attention for their diverse applications in various fields, including energy-related research. However, their potential in solid oxide fuel cells (SOFCs) remains unexplored. This research presents a practical approach to creating a local gradient field by coating BaTiO3 (BTO) with HEO, enabling efficient and stable ionic transport for fuel cell applications

Crystallization of amorphous alloy is a commonly used method to fabricate nanocomposite permanent magnets. However, the effect of the hyperfine structures of amorphous alloy on microstructure evolution and magnetic properties of the obtained nanocomposites is far from understood. Here, amorphous Nd9Fe85B6 alloys with different hyperfine structures, i.e., different short-range orders (Rs = 0.80-0.91?nm)

The phase transformation behavior and superelasticity of nanocrystalline Ti50Ni50-xCox (x = 3, 5, 9) alloy wires were investigated. The results showed that the starting temperature of the B2→R phase transformation gradually decreased with the Co content, while the superelastic temperature range of the alloy wires shifted toward cryogenic temperatures as the Co content increased. The superelastic temperature

The Al4SiC4 phase is a potential new refractory material due to its high compressive strength at high temperatures. However, the thermal stability of the Al4SiC4 phase is not clear. The thermal stability of the Al4SiC4 phase has been studied. The Al-Si-C samples were prepared using the powder metallurgy method and were sintered/annealed at 1500 °C, 1400 °C, 1300°C, 1200 °C, and 500 °C, followed by

Four kinds of high-entropy oxides (HEOs) with compositions of Y0.2Zr0.2Hf0.2Ce0.2X0.2O2?δ (X=La, Nd, Gd, Dy, abbreviated as HEO-La, Nd, Gd, Dy, respectively) are synthesized by solid-state-reaction method combined with conventional sintering in air atmosphere at 1600 °C for 10?h. These HEOs have a fluorite-structured phase with homogeneous element distribution. The thermal conductivity (κ) of these

While outstanding properties of boron carbide (B4C)-silicon carbide (SiC) composites make them potential candidates for ballistic and wear resistance applications, the applicability is rather limited due to processing challenges to obtain high density and superior mechanical properties. In the present work, B4C-10wt% SiC composites are spark plasma sintered without additives and with 6?wt% (Al2O3 -Y2O3)

In order to determine the lattice thermal expansion and specific heat capacity (Cp) of the C15-Cr2Nb Laves phase, an experimental investigation and modeling were carried out in the present paper by employing high-temperature X-ray diffraction (HTXRD) and differential scanning calorimetry (DSC). A thorough analytical model was utilized to predict the temperature-dependent variations of enthalpy and

The design of magnetic memory devices can be greatly optimized by changing the magnetic moment or domain state of materials via magneto-electric coupling. However, the research of current-induced magnetization reversal is mainly realized using a high driving current density and auxiliary external magnetic field, which is quite limited to magnetic memory development. This work achieves a controlled

As a kind of high temperature thermoelectric material, TiNiSn compound has the characteristics of high power factor and high thermal conductivity. Its thermoelectric performance is largely limited by the high thermal conductivity. In this paper, TiNiFexSn(x=0-0.05) samples are prepared by melt spinning combined with spark plasma sintering method. The results show that there are nanocrystals existed

O3-type layered transition metal oxide NaNi1/3Fe1/3Mn1/3O2 (NFM) has the advantages of high theoretical specific capacity, simple synthesis method and low cost, which is an ideal cathode material for sodium ion batteries. However, because of its unstable lamellar structure and poor Na+ diffusion channels, the cycle performance and rate performance of NFM electrode materials are poor. In this work,

The aim of the study was to analyze the structure of two groups of glasses: first sulfur-free from the SiO2-P2O5-K2O-MgO system and second sulfur-containing from the SiO2-P2O5-K2O-MgO-SO3 system with various network formers content in the form of P2O5 and SiO2. The sulfur speciation in the sulfur-bearing glasses was also determined. The sulfur-containing glasses were obtained under reducing conditions

Developing efficient water splitting electrocatalysts plays a critical role in lowering the energy cost for hydrogen production, which requires accurate evaluation of the catalytic performance especially under industrially relevant conditions. In this work, we design a two-chamber electrolyzer testing system simulating practical water electrolyzer system to enable catalytic performance evaluation under

In this study, the novel AgZrO2 electrical contact materials reinforced with different ZrO2 contents were successfully fabricated by powder metallurgy. The effect of ZrO2 content on arc erosion resistance of the AgZrO2 electrical contact materials was investigated, and the electrical conductivity and hardness were measured, as well as the arc erosion mechanism was discussed as well. Furthermore, the

Li-rich manganese-based cathode material is expected to be extremely promising for next-generation lithium-ion batteries due to its high specific capacity derived from additional anion redox behavior and low cost of the main element manganese. However, the irreversible release of lattice oxygen results in poor structural stability and inferior electrochemical performances, such as low initial Coulomb

In this study, oxygen vacancies were introduced into the hematite (α-Fe2O3) photoanode via a simple and rapid butane flame annealing method. The presence of oxygen vacancies were demonstrated by high-resolution transmission electron microscopy (HRTEM), electron paramagnetic resonance (EPR) and X-ray photoelectron spectroscopy (XPS). The photocurrent density of optimum α-Fe2O3 electrodes was 0.67?mA?cm-2

With the rapid development of aerospace technology, the demand for a longer service life of Au-Ag-Cu alloy as conductive slip rings is increasing. Therefore, it is important to improve the hardness of the alloys in order to prolong their service life. Deformation-aging can improve the hardness of many alloys. The effect of the deformation-aging process of Au-20Ag-10Cu (wt.%) alloy was investigated

There is a high research demand to enhance magnesium-based orthopedic implants' biocompatibility and corrosion resistance. This work reports the development of a nanocomposite ceramic coating based on diopside (Dio) / fluorohydroxyapatite (FHA) / graphene oxide (GO) via the electrophoretic deposition (EPD) method on the AZ31 Mg alloy substrate. FESEM, EDS, XRD, and FTIR were employed to characterize

Antimony (Sb) has an ultra-high theoretical specific capacity and is a very promising anode material for potassium-ion batteries (PIBs) and sodium-ion batteries (SIBs). In this paper, carbon coated carbon nanotubes (CNTs) and Sb (Sb@CNTs@C) nanomaterials were efficaciously synthesized by way of a one-step solvothermal and thermal reduction method. As the anode material of PIBs, Sb@CNTs@C have decent

In recent years, nanoscience has emerged as a prominent research field, focusing on exploring the therapeutic properties of herbal medicine. This research presents the green synthesis of Ag-doped ZnO nanoparticles using the fruit extract of Sophora pachycarpa (S. pachycarpa@Ag-doped ZnO NPs). Various characterization methods, including XRD, EDAX, TEM, and FT-IR, were employed to identify the nanoparticles

A novel additive manufacturing dedicated Al-Zn-Mg-Si-Sc-Zr alloy is designed in this work, and its formability during selective laser melting (SLM) is investigated. Adding 3 % Si to the Al-Zn-Mg alloy leads to a refined microstructure and significant enhancement of hot-cracking resistance. By means of SEM, TEM and EBSD analysis some aspects of the alloy microstructure in as-built and thermal-treated

Ammonia has important application value in agriculture and industry as a raw material for producing nitrogen fertilizers and organic chemicals. The Haber-Bosch method is generally utilized to synthesize ammonia through N2 and H2 as raw materials in industry, but the process generates serious energy consumption and pollution. In the paper, a heterojunction catalyst is constructed that adopts NH2-MIL-125

Near-infrared (NIR) phosphors is feasible for night vision and optical thermometry applications. We synthesized several NIR/red light-emitting Sr2(Ga/Al)TaO6:Cr3+ phosphors using a high-temperature solid-state reaction approach and then conducted in-depth research on the crystal structure, luminescence properties, quantum yields and temperature dependence of the materials. Adjusting the concentrations

Using scanning and transmission electron microscopy, X-ray diffraction, indentation and bending tests we studied the evolution of microstructure, phase composition and mechanical properties of TiC-free Ni3Al and Ni3Al-TiC composites (TiC content was 10 and 30?vol%) fabricated by self-propagating high-temperature synthesis (SHS) under pressure induced by low-energy high-current pulsed electron beam

The band gap and photo- and electro-chemical activities of graphic carbon nitride (g-C3N4) depended strongly on their components. In this paper, P-g-C3N4/S-g-C3N4 (PCN/SCN) and S-g-C3N4/P-g-C3N4 (SCN/PCN) composite nanosheets heterostructures were created using P-doped and S-doped g-C3N4 nanosheets as seeds to study the effect of compositions on photo- and electro-chemical properties. Thermal polymerization

Cr3C2-based cermets have been strengthened and toughened significantly by using Cr3C2-TiC-WC composite solid solution powder with a particle size of 1–2?μm as starting material. 80(72Cr3C2-18TiC-10WC)-20Ni cermet sintered at 1200?°C for 1?h has excellent mechanical properties: bending strength of 1378?MPa, hardness of 88.7 HRA and toughness of 12.74?MPa·m1/2, which are 167.1%, 5.2% and 100.6% higher

This study proposes a novel strategy for the design of a new family of metastable Zr alloys. These alloys offer improved mechanical properties for implants, particularly in applications where conventional stainless steels and Co-Cr alloys are currently used but lack suitability. The design approach is based on the controlled twinning-induced plasticity (TWIP) effect, significantly enhancing the ductility