34 Result(s)
within
Materials Science
Characterization and Evaluation of Materials
Polymer Sciences
Feng**a Liu
Article
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Article
Tailoring the stability of iron carbides to enhance the mechanical performances of Fe–C–Mn–Si alloys
The Fe–C–Mn–Si alloys are promising advanced high strength steels (AHSSs) with their performances greatly influenced by iron carbides precipitated in quenching and partitioning process. To date, the structural...
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Dissimilar friction stir welding of 2219-T8 and 2195-T8 aluminum alloys for fuel tanks: part II—effect of multi-pass repair welding
During the fabrication of fuel tanks by adopting friction stir welding (FSW), welding defects were almost unavoidable. The multi-pass repair FSW is the preferred repair welding technique for fuel tanks. Howeve...
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Dissimilar friction stir welding of 2219-T8 and 2195-T8 aluminum alloys: part I—microstructure evolution and mechanical properties
The need for 2219 aluminum alloy and 2195 Al–Li alloy dissimilar friction stir welding (FSW) arises as the conventional 2219Al alloy was gradually replaced by the novel 2195Al alloy in fabrication of fuel tank...
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Experimental study on shear viscosity and rheopexy of Escherichia coli suspensions
Escherichia coli suspension, as a paradigmatic model system of active fluids, shows different rheological responses from passive suspensions under shear. To investigate the effect of suspension volume fraction, b...
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Preparation of low thermal conductivity hierarchically porous diatomite ceramics by doped with ZrSiO4 opacifier-based foam-gelcasting method
Hierarchically porous diatomite ceramics (HPDCs) doped with ZrSiO4 as the opacifier were successfully prepared by means of foam-gelcasting with diatomite powder as original material. The effects of the opacifier,...
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Coupling high-throughput experiment and machine learning to optimize elemental composition in nickel-based superalloys
Establishing relationship of elemental composition and mechanical property is a tremendous amount of work in superalloys. Here, machine learning coupled with high-throughput experiment is adopted to construct ...
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Interlaminar mechanical properties of nano- and short-aramid fiber reinforced glass fiber-aluminum laminates: a comparative study
Delamination damages limit the application potential of Fiber metal laminates, hence improving the interlaminar mechanical properties has always been a research focus and challenge in this field. The toughenin...
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Vibration Characteristics of Functionally Graded Porous Nanocomposite Blade-disk-shaft Rotor System Reinforced with Graphene Nanoplatelets
This paper presents a study on the modelling and free vibration analysis of a rotating functionally graded (FG) porous blade-disk-shaft assembly reinforced with graphene nanoplatelets (GPLs) resting on elastic...
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Low-temperature-deposited SnO2 films for efficient planar CH3NH3PbI3 photovoltaics
Low-temperature-synthesized electron transport layers (ETLs) are in demand for the industrialization and flexibility of perovskite solar cells (PeSCs). SnO2 ETLs are prepared via chemical bath deposition at low t...
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Ohmic contact in graphene/SnSe2 Van Der Waals heterostructures and its device performance from ab initio simulation
Van der Waals (vdW) type metallic/semiconducting heterostructures have attracted much attention for applications like nanoelectronics. The electronic properties of graphene/SnSe2 vdW heterostructure are investiga...
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Supported AuPd nanoparticles with high catalytic activity and excellent separability based on the magnetic polymer carriers
An approach is developed to fabricate supported AuPd nanoparticles (NPs) with high catalytic activity and good separability depending on these amino-modified polymer microspheres (Fe3O4@PS-NH2). After the careful...
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Modification of porous carbon with nitrogen elements to enhance the capacitance of supercapacitors
A porous carbon precursor is prepared by modifying polyvinylidene fluoride with nitrogen via a chemical polyreaction and then introducing mesopores using the soft-template method. After carbonization at the ap...
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Superior-performance TiN films sputtered for capacitor electrodes
Titanium nitride (TiN) thin films were deposited on Si (100) substrate by direct current reactive sputtering without and with the application of a substrate bias. The aim of this work was to clarify the effect...
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Synthesis and thermal properties of a capric acid-modified expanded vermiculite phase change material
A new capric acid (CA)-modified vermiculite composite phase change material (PCM) with improved adsorption ability and enhanced thermal stability was prepared in the present research. The silanization vermicul...
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Phase selection of titanium boride in copper matrix composites during solidification
In situ TiB whisker and TiB2 particle hybrid reinforced copper matrix composites were fabricated by vacuum induction melting. The phase constitution of the composites varies with their chemical composition. Therm...
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Phase selection and re-melting-induced anomalous eutectics in undercooled Ni–38 wt% Si alloys
The Ni–38 wt% Si alloy whose eutectic products are two stoichiometric intermetallic compounds (i.e., NiSi and NiSi2) was undercooled by the melt fluxing technique. After in situ observations of the recalescence p...
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Effect of Yarn Distortion on the Mechanical Properties of Fiber-Bar Composites Reinforced by Three-Dimensional Weaving
A meso-structure model of fiber-bar composites reinforced by three-dimensional weaving (FBCR3DW) is proposed. Optical microscopy images of the preform structure revealed that the fibers along the circumference...
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Modeling of eutectic dendrite growth in undercooled binary alloys
A eutectic dendrite growth model in which the interface, solute diffusion in the liquid, and triple-junction (TJ) are under non-equilibrium conditions is proposed for undercooled binary alloys. This model, com...
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Investigation on mode-II interface fracture toughness of CFRP/Al laminates toughened by VGCF interleaves
Mode-II interlaminar mechanical properties of CFRP/Al(aluminum) laminates were improved by acid treatment to an Al plate and adding vapor-grown carbon fiber (VGCF) between the Al plate and a CFRP layer. The in...
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A hyperbolic phase-field model for rapid solidification of a binary alloy
A hyperbolic phase-field model (PFM) was proposed from the thermodynamic extremal principle for rapid solidification of a binary alloy. In the modeling, not only the interface but also the bulk phases are unde...
