冶金, 本领域期刊类期刊, -365足球

n-rich carbon nitride (c3n5) stands out as a promising photocatalyst owing to its effective sunlight absorption and narrow band gap. however, its practical application is hindered by its small specific surface area and rapid recombination of photoexcited electron-hole pairs. it is therefore important to identify green and controllable synthesis strategies that can be used to modify its morphology and

although great development has been made in the new rolling technology for high-strength, low anisotropy magnesium alloy sheets over the last decade, its application in industrial large-scale manufacturing is problematic due to the process's complexity and high production costs. in this work, unidirectional (ur) and cross rolling (cr) and their effect on the microstructure and mechanical anisotropy

mhz frequency dependence of permeability in soft magnetic composites (smcs) composed of spherical fe-si-b amorphous particles insulated by epoxy resin with different mass fractions was studied. combining the static and dynamic results of smcs, it was found that the intrinsic mechanism of permeability in mhz range is coherent rotation of magnetization rather than displacement of domain walls. the fact

this work systematically investigated the effects of al-4nb-1b master alloy on the microstructure and mechanical properties of zl205a alloy. the findings revealed that α-al was refined into fine equiaxed grains, and the mean size was reduced from 105.2 μm to 71.8 μm. additionally, when the master alloy content reached 3 wt.%, the microstructure of the θ-al2cu phase was markedly modified from coarse

innovative and efficient photodetectors (pds) using carbon dots (cds) have drawn tremendous interest from electrochemical analyses in recent years. this study develops a chips ahoy cookies-like architecture comprising cds-decorated snse2 (css) through a simple hydrothermal method. the css-based pds demonstrate excellent photo-responsive behaviors with optimal photocurrent density (pph, 60.13 μa cm-2)

to address the poor thermal stability associated with conventional zr-based grain refinement in magnesium-rare earth (mg-re) alloys for wire arc additive manufacturing (waam), this study proposes an innovative approach involving the substitution of zr with al as a grain refinement agent. thin-walled components of waam-fabricated mg-4y-3nd-1.5al (wna4315) alloy were designed and prepared. the microstructural

al-cu-li alloys are widely used in the aerospace field due to their high specific strength and other advantages. their high strength mainly comes from the t1 strengthening phase formed during the aging process. for the strengthening effect of t1 phase, in addition to characteristics such as quantity density, size and shape, the strain field formed at its interface also has a significant impact. this

medium-entropy microwave dielectric ceramics with intermediate permittivity, (ca,sr,ba)la4ti4o15(bsclt), were synthesized via a conventional solid-state reaction method. the effects of configurational entropy and cationic variation on the microwave dielectric properties were systematically investigated. x-ray diffraction (xrd) confirmed that the main crystalline phase was mela4ti4o15, accompanied by

precise micro-newton force detection using heterojunction-based piezoelectric sensors critically depends on maintaining an intact electromechanical coupling interface between zinc oxide nanorods (zno nrs) and the active layer of bottom-gate thin-film transistors (tfts). this study systematically investigates the optimization of zno seed layer (sl) deposition conditions to form an effective barrier

the present study provides detailed temperature-dependent measurements for the relaxor composition of isovalent (hf4 ) substituted batio3 (bto), specifically bati0.6hf0.4o3. the observations reveal distinct structural modifications associated with its dielectric maxima. by combining these results with our earlier findings on sn4 substituted bto (surampalli et al., 2019; dhanetwal et al., 2024), the

the development of excellent photocatalysts for hydrogen production from water photolysis is a feasible strategy to realize efficient solar energy conversion and solve the energy crisis. the homogeneously dispersed cds nanoparticles were in-situ grown on coral like carbon nitride (ag-c3n4) by a simple hydrothermal method. compared with pure ag-c3n4, the prepared ag-c3n4/cds exhibited excellent hydrogen

the growing demand for high‑power energy storage has underscored the need for electrodes combining rapid charge–discharge kinetics with enhanced energy density. a hierarchical α‑fe₂o₃/zif‑8/pani composite electrode was prepared via wet impregnation and ultrasonication, integrating the redox activity of hematite, the microporous framework of zif‑8 and the conductive network of polyaniline into a three‑dimensional

raspberry-like double-core shell cds@zns@nis material was prepared to use a simple one-step hydrothermal method, and then coated uniformly on carbon nanofibers (cnfs), resulting in the formation of highly efficient counter electrode (ce) for zn-cu-in-se (zcise) quantum dot sensitized solar cells (qdsscs). the qdsscs used cds@zns@nis/cnfs as ce reached power conversion efficiency (pce) of 9.72%, which

amid escalating global security demands, advanced information encryption and anti-counterfeiting technologies have become critical priorities in the digital era. this review article systematically consolidates a decade of advances in fluorescent anti-counterfeiting materials, highlighting their pivotal roles in security architectures through unique luminescent properties and tailorable designs. by

to clarified the influence of the semimetal to semiconductor (smsc) transition on thermoelectric properties of bi-sb, electronic structures, thermoelectric properties, andcrystallographic of bi-sb are investigated combining first principles and experiments. results reveal that the best thermoelectric property of bi-sb is bi0.84sb0.16 from the present study. the experimental results also show that the

materials with a first-order magnetic phase transition demonstrate colossal changes in physical properties near the phase transition temperature. however, the mechanisms of phase transition occurrence are not fully understood. in this work, using the fe48rh52 alloy as an example, we study the near-surface magnetic and structural properties of the alloy near the phase transition temperature. analysis

the development of tunable broadband near-infrared (nir) fluorescent materials with excellent luminescent properties is still a challenge for the next generation of intelligent nir light sources. here, a series of cr3 doped magnetoplum type nir phosphors were prepared by the high-temperature solid-state method. their luminescent properties and the methods to broaden the luminescence bandwidth were

the incorporation of niobium in nanocrystalline alloy systems has been widely recognized as pivotal for achieving grain refinement at the nanoscale regime, playing a vital role in enhancing the overall soft magnetic properties. however, the high nb content (~3 at. %) in commercial fe-si-b-cu-nb nanocrystalline alloys leads to a surge in material costs and limited bs (about 1.23 t), restricting their

elastocaloric refrigeration technology, which exploits the caloric effect from stress-induced phase transformation in shape memory alloys for cooling, is widely regarded as one of the most promising environment-friendly alternatives to traditional vapor-compression cooling technology. development of high-performance elastocaloric materials is of great significance for the advancement of elastocaloric

perovskite oxides have become the hot catalysts for solid oxide electrolysis cells on electrolytic co2, of which the redox behaviors are significant to their applications. in this work, effects of the reoxidation time and temperature, cyclic redox times on the redox behaviors of strontium lanthanum titanate perovskites are investigated by reoxidation treatment in co2. the higher reoxidation temperature

potassium metal batteries (kmbs) are promising due to their high theoretical capacity and resource abundance, yet dendrite growth and interfacial instability limit their practicality. herein, we design a silver-decorated 3d porous carbon nanofiber composite (ag@cnfs) as a stable anode. synthesized via electrospinning, calcination, and impregnation, ag@cnfs enhance potassium affinity through uniformly

in this study, we developed a hybrid catalyst by depositing pt nanoparticles onto titanium dioxide-embedded activated carbon nanofibers via an electrospinning technique. the tio2 nanoparticles, each smaller than 10 nm, were uniformly distributed on the surfaces of the nanofibers, forming a well-integrated tio2–activated carbon nanofiber (acnf) composite structure. this unique composite structure of

this study aimed to significantly enhance the activity of magnetic cofe2o4 photocatalyst by adopting a co-modification strategy of doping zn2 and combining with the conjugated derivative (cpvc) of poly(vinyl chloride) (pvc). a series of zn2 -doped cofe₂o₄ (zn-cofe₂o₄)/cpvc nanocomposites were prepared by an easy-to-implement method, using pure pvc powder or waste pvc plastic films as the source material