25 Result(s)
within
He-** Zhu
Materials Science
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Article
Absence of ultrasonic-vibration-induced plasticity in metallic glacial glasses
Metallic glasses (MGs) have been found to exhibit unexpected ultrasonic-vibration-induced plasticity (UVIP), which provides a promising way to realize room temperature processing and molding of MGs. However, w...
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Article
RuCo alloy nanoparticles embedded within N-doped porous two-dimensional carbon nanosheets: a high-performance hydrogen evolution reaction catalyst
Develo** cost-effective electrocatalysts with high activity and stability especially at high current density is of great significance for the large-scale commercial application of electrochemical water split...
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Article
Open AccessAuxetic piezoelectric effect in heterostructures
Inherent symmetry breaking at the interface has been fundamental to a myriad of physical effects and functionalities, such as efficient spin–charge interconversion, exotic magnetic structures and an emergent b...
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Modulating precursor nanosheets for stabilized Ni-rich cathode material for Li-ion batteries
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Numerical Simulation of Inclusion Removal by Bubble Injection in the Submerged Nozzle With Swirling Flow
The removal of inclusions is of great importance in metallurgical industry. In this paper, a novel swirling flow generator (SFG) is intended to be installed around the inlet of the submerge entry nozzle (SEN) ...
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Article
Copolymer hydrogel as self-standing electrode for high performance all-hydrogel-state supercapacitor
Herein, a conducting copolymer hydrogel of poly(aniline-co-pyrrole)/polyvinyl alcohol (PACP/PVA) was prepared by in-situ polymerization of aniline and pyrrole in aqueous solution of phytic acid and PVA. This P...
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Article
A self-healing hydrogel electrolyte towards all-in-one flexible supercapacitors
The self-healing electrolytes play an essential role in self-healing supercapacitors. Herein, poly (vinyl alcohol)/sulphuric acid (PVA/H2SO4) hydrogel electrolytes with self-healing properties are prepared, which...
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Article
Effects of yttrium on the microstructures, internal fraction and martensitic transformation in H13 die steel
H13 die steels with varied yttrium (Y) content were prepared by vacuum induction melting, multiple forging, annealing and quenching treatment with stepwise heating. The effects of Y on the microstructures, int...
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Article
Interfacial Microstructure and Bonding Properties of Plasma-Sprayed Multilayer Ceramic Coating (Al2O3/BaTiO3/Al2O3-40 wt.% TiO2)
In multilayer coatings, the bonding mechanisms between the different layers determine the cohesive strength of the coatings, which in turn to a large extent controls the mechanical properties of coatings under...
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Article
In Situ TiC/FeCrNiCu High-Entropy Alloy Matrix Composites: Reaction Mechanism, Microstructure and Mechanical Properties
In situ TiC particles-reinforced FeCrNiCu high-entropy alloy matrix composites were prepared by vacuum induction melting method. The reaction mechanisms of the mixed powder (Ti, Cu and C) were analyzed, and th...
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Article
Phytic acid-doped poly(aniline-co-pyrrole) copolymers for supercapacitor electrodes applications
Phytic acid-doped copolymers poly(aniline-co-pyrrole) have been synthesized by chemical polymerization for applications of supercapacitors. The results indicate that poly(aniline-co-pyrrole) copolymer delivere...
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Article
Thermal meta-device in analogue of zero-index photonics
Inspired by the developments in photonic metamaterials, the concept of thermal metamaterials has promised new avenues for manipulating the flow of heat. In photonics, the existence of natural materials with bo...
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Article
Open AccessAtomic-Layer-Deposition of Indium Oxide Nano-films for Thin-Film Transistors
Atomic-layer-deposition (ALD) of In2O3 nano-films has been investigated using cyclopentadienyl indium (InCp) and hydrogen peroxide (H2O2) as precursors. The In2O3 films can be deposited preferentially at relative...
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Article
Torsional Fretting Wear Behavior of Duplex DLC Coatings Deposited on Ion Nitriding Treated LZ50 Steel
Duplex ion nitriding/DLC coatings were prepared on LZ50 steel. Characterizations were detected by scanning electron microscopy, atomic force microscope, Raman spectroscopy, dynamic ultra-micro hardness tester...
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Article
Open AccessOriented attachment of nanoparticles to form micrometer-sized nanosheets/nanobelts by topotactic reaction on rigid/flexible substrates with improved electronic properties
We report a topotactic reaction strategy to achieve the oriented attachment (OA) of colloidal metal chalcogenide quantum dots into micrometer-sized nanosheets and nanobelts (up to 6–7 μm) on both mechanically ...
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Article
Surface properties and cytocompatibillity of silk fibroin films cast from aqueous solutions in different concentrations
Silk fibroin film (SFF) has been widely used in biomaterials. SFF is usually prepared from a regenerated silk aqueous solution and its properties depend remarkably on the preparation conditions. However, the e...
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Article
Improvements of anticoagulant activities of silk fibroin films with fucoidan
Fucoidan (FC), an effective anticoagulant constituent extracted from brown algae, was introduced into silk fibroin (SF) for improving its blood compatibility. The SF and SF/FC blend films were characterized by...
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Article
Optical and electrical properties of carbon nitride films deposited by cathode electrodeposition
Carbon nitride (CN x ) films were prepared on silicon (100) wafers and ITO conductive glasses by cathode electrodeposition, using dicyandiamide (C2H4N4) in acetone as precursors....
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Article
Aroused problems in the deposition of diamond-like carbon films by using the liquid phase electrodeposition technique
Hydrogenated diamond-like carbon (DLC) films were prepared by using liquid phase electrodeposition technique. The effects of the applied potential and the carbon sources on the deposition process and film stru...
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Article
Deposition of diamond-like carbon films by using liquid phase electrodeposition technique and its electron emission properties
We have deposited diamond-like carbon (DLC) films by electrodeposition technique in methanol liquid. XPS showed the films mainly contain carbon. IR spectrum indicated that as-deposited films are hydrogenated c...
