Materiales

Materiales

Improved oxygen evolution reaction performance in Co0.4Mn0.6O2 nanosheets through Triple-doping (Cu, P, N) strategy and its application to Zn-air battery
- In this work, we successfully synthesized bimetallic transition oxides into two-dimensional nanosheets, which expose all the catalytic sites on the surface. Then, Cu, N, and P elements were...
Preparation of polyethyleneimine-modified chitosan/Ce-UIO-66 composite hydrogel for the adsorption of methyl orange
- In this work, a polyethyleneimine-modified chitosan/Ce-UIO-66 composite hydrogel (PEI-CS/Ce-UIO-66) was prepared using the ex-situ blend method. The synthesized composite hydrogel was...
Role of biopolymers in enhancing multiscale characteristics of carbonation-cured cementitious composites
- This study investigates the application of two natural biopolymers, i.e., polydopamine and
High-toughness M-S-H cement composites reinforced with cellulose fibers through CO2 curing
- This work evaluates the influence of a CO2-saturated curing environment on thin (5 mm thick) boards of
Enhanced performance of Al2O3–SiC–C castables via in-situ formation of multi-reinforced phases by introducing surface treated composite metal powders
- Al2O3–SiC–C (ASC) castables were prepared with bauxite and silicon carbide as major raw materials and introducing large amount of surface treated composite metal powders (STCMPs) as...
Electrical properties and enhanced low-field magnetoresistance of Mn2O3-added La0.7Ca0.3MnO3 ceramics
- Perovskite La1-xCaxMnO3 (LCMO) has attracted extensive attention due to its unique physical properties, such as its colossal magnetoresistance, charge ordering, and...
Effect of hybrid ultrasonic-electromagnetic field on cracks and microstructure of Inconel 718/60%WC composites coating fabricated by laser cladding
- In this study, a novel hybrid ultrasonic-electromagnetic (UEM) field was introduced into laser cladding (LC) to fabricate Inconel 718/60% tungsten carbide (WC) metal matrix composites (MMCs)...
Fabrication and thermal shock behaviour of BaZrO3–MgO composites
- This study introduces BaZrO3 with a perovskite structure as a second phase combined with MgO to prepare composites and apply these magnesium matrix composites in high-temperature fields. The...
Ultrathin CoNi@Ti3C2Tx composites with sandwich structures for efficient microwave absorption
- To obtain high-performance electromagnetic absorbing materials, we designed
Wear behavior of additively manufactured 316L/SiCp composites with up to 60 wt% SiCp
- The wear behavior of 316L composites reinforced with up to 60% SiCp additively manufactured by Laser-Directed Energy Deposition (DED) has been studied and the effect of adding different...
Improving mechanical properties of SiCw/SiC composite by phase content optimization via reactive melt infiltration
- Inspired by the preparation methods of continuous fiber reinforced ceramic matrix composites (CFCCs), a novel silicon carbide whiskers (SiCw)-toughened SiC CMC with isotropic high strength and...
Effect of ?-SiAlON content on the sintering and bacteriostatic properties of ?-SiAlON–Si3N4 composite ceramics
- ?-SiAlON–Si3N4 composite ceramics were prepared by varying ?-SiAlON content in the raw material and the content effect on the sintering, phase, microstructure and bacteriostatic properties of...
Micro/nano-mechanical properties evolution and degradation mechanism of Ti3AlC2 ceramic reinforced Ag-based composites under high-temperature arc corrosion
- Ti3AlC2 ceramic-reinforced Ag matrix composites exhibit superior electrical contact performance. However, the arc corrosion mechanism of the Ti3AlC2 reinforcing phase has not been clarified; in...
Design of multilayer cauliflower-like structure SiO2/SiC–Y2Si2O7 composite ceramics as high-efficiency electromagnetic wave absorbers
- A reasonable design of the microstructure and phase composition of rare earth silicate composites can enhance their corrosion resistance and their electromagnetic (EM) properties. However,...
Wear behavior and microstructure of alumina-mullite-zirconia composites prepared by a novel method: Coating of zircon powder by aluminum alkoxide
- The formation of the mullite phase is the main challenge in the preparation of alumina-mullite-zirconia (AMZ) composites. To overcome this limitation, a novel method based on the coating of zircon...
Enhancement of thermal conductivity of BN-Ni/epoxy resin composites through the orientation of BN-Ni fillers by magnetic field and hot-pressing
- The construction of high thermal conductivity polymer composites by the orientation of fillers is of great significance in electronic devices. Herein, a novel strategy to prepare boron nitride-Ni...
Study on La2(Hf1-xTix)2O7 (x ? 0.20) pyrochlores for potential thermal/environmental barrier coating applications
- Lanthanum hafnate (La2Hf2O7) with a pyrochlore structure has excellent high temperature stability and low thermal conductivity, which is promising for thermal/environmental barrier coatings...
Experimental study on laser assisted ultrasonic elliptical vibration turning (LA-UEVT) of 70% SiCp/Al composites
- SiCp/Al composites are more and more used in aerospace, military industry and other industries. However, the surface integrity of materials is poor, and the cutting force is large as the...
CaMn0.05Zr0.95O3–NiMn2O4 composite ceramics with tunable electrical properties for high temperature NTC thermistors
- A series of novel high temperature negative temperature coefficient (NTC) composite ceramics based on (1-x)CaMn0.05Zr0.95O3-xNiMn2O4 (x = 0, 0.1, 0.2, 0.3) were...
Development of functionally graded ZrB2–B4C composites for lightweight ultrahigh-temperature aerospace applications
- In the present work, a lightweight three-layer ZrB2–B4C functionally graded composite material has been developed by spark plasma sintering route. The functionally graded material (FGM) is free...
Synergistic effect of noble metal doping and composite formation to boost the electrochemical properties of vanadium pentoxide
- Herein, a hydrothermal method was used for the synthesis of V2O5 nanowires (NWs) and Ag-doped V2O5. The prepared doped material was intercalated in MXene for the preparation of an Ag-doped...