59 Result(s)
within
** Lu Li
Characterization and Evaluation of Materials
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Article
Yttrium-Stabilized Zirconia Ceramics Fabrication through Material Extrusion 3D Printing
In this study, the authors refined and molded 8 wt.% yttrium-stabilized zirconia (8YSZ) ceramic powders by using extrusion 3D printing to obtain green bodies. The green bodies were then subjected to degreasing...
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Article
Investigation on the Microstructure and Mechanical Properties of Multi-layer and Multi-pass Al Alloy Deposition Based on Cold Metal Transfer Technology
In this work, multi-layer and multi-pass 5183 Al alloy laminated parts were effectively prepared by a cold metal transfer arc welding machine and 5183 Al alloy wire, and the effects of thermal history on the m...
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Article
Improvement of Mechanical Properties of β-AlSiFe Phase by Do** Transition Metals (M = Cr, Mn, V, Ti, and Zr): A First-Principles Study
To enhance and modulate the mechanical properties of the β-AlSiFe (Al9Si2Fe2) phase, we conducted first-principles calculations to investigate the impact of transition metal (M = Cr, Mn, V, Ti, and Zr) do** on ...
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Article
On the Strengthening Mechanisms and Interfacial Characteristics of TiB2/Hypoeutectic Al-Si Ceramic Composites
xTiB2/Al-9Si composites were fabricated in this study using the mixed salt reaction method. With increasing TiB2 particle content, the size of the primary α-Al grains decreased correspondingly. The best refinemen...
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Article
Enhanced breakdown strength and dielectric loss of Ca1−3x/2EuxCu3Ti4O12 ceramics prepared by polymer pyrolysis
The CaCu3Ti4O12 (CCTO) ceramic is characterized by high dielectric constant, but its elevated dielectric loss (tanδ) and low breakdown field strength (Eb) limit its practical applications in small electronic devi...
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Article
Low Dielectric Benzocyclobutene-type Polymers Based on Facile Synthesis of Linear Fluorinated Monomer
A linear fluorinated benzocyclobutene-type monomer (4F-bis-BCB) was facilely synthesized by a one-step copper-catalyzed etherification reaction and a simple precipitation post-purification method. Moreover, a ...
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Article
MOF-templated synthesis of Ag@ZnO nanocages for UV-activated ethanol sensing
Porous Ag@ZnO hollow nanocages (HNCs) have been constructed by using Ag@ZIF-8 as precursor template. Mesoporous hollow nanostructures functionalized with evenly dispersed Ag nanocatalysts (~ 8 nm) have been ac...
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Article
SrTiO3-modified CaCu3Ti4O12 ceramics with low dielectric loss and excellent temperature stability for X8P capacitors
CaCu3Ti4O12 (CCTO) dielectrics can be extremely important potential candidate materials for electrical devices. However, their practical application process is somewhat restricted by some longstanding problems, s...
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Article
Photoelectrochemical immunoassay of squamous cell carcinoma antigen based on CuO/nitrogen-doped porous carbon–ZnO biolabeling and a type-II In2O3/AgBiS2 heterojunction
AgBiS2 was hydrothermally synthesized, In2O3 was synthesized by hydrothermal method and calcination, and the type-II In2O3/AgBiS2 heterojunction material of an optimized composition ratio was cast-coated on a flu...
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Article
Angular Magnetic-Field-Dependent Tunneling Magnetoresistance Controlled by Electric Fields in an MTJ/PMN-PT Multiferroic Heterostructure
The electric-field modulation of magnetization switching is an energy-efficient method for the design of potential spintronic devices. In this study, a magnetic tunnel junction (MTJ)/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (PMN...
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Article
Low-cost irreversible blue diode laser transmission welding of poly(methyl methacrylate)-based microfluidics
Thermoplastics have been widely used as bulk material for microfluidic devices in biological and medical applications. One of the critical steps in chip fabrication is bonding: substrate (usually with fabricat...
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Article
Photoelectrochemical sandwich immunoassay of brain glycogen phosphorylase based on methyl orange–sensitized TiO2 nanorods
The photoelectrochemical immunoassay of glycogen phosphorylase BB (GPBB) was studied. A methyl orange/TiO2 nanorod heterojunction was constructed on a fluorine-doped tin oxide electrode by hydrothermal synthesis,...
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Article
In situ characterization of the flexural behavior and failure mechanism of 2D needle-punched carbon/carbon composites by digital image correlation
Combining the load–displacement curve with the In situ strain field evolution obtained by the digital image correlation (DIC), the flexural behavior and failure mechanism of 2D needle-punched carbon/carbon com...
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Article
Vapor-Phase Polymerization of PEDOT for Wearable Fabric Pressure Sensors
Wearable pressure sensors with an ultra-wide linearity range and high sensitivity have atttracted increasing interest on account of their great potential applications in artificial tactile sensing, human healt...
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Article
Mechanical, thermal stability, and flame retardancy performance of transparent wood composite improved with delaminated Ti3C2Tx (MXene) nanosheets
Transparent wood (TW) is a promising optical material, which provides a potential choice for windows applications. As a polymer composite material, the mechanical, thermal stability, and flame retardant of TW ...
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Article
Silica ceramic nanofiber membrane with ultra-softness and high temperature insulation
Silica ceramic nanofiber (SCNF) membranes with ultra-softness were fabricated by electrospinning and precursor derived ceramic technology. Firstly, the precursor fiber membrane was obtained by electrospinning ...
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Article
Study of the Microstructure and Properties of Cold Sprayed NiCr Coating
NiCr coating was prepared on the surface of AISI 1045 steel substrate by cold spraying. The microstructure, phase composition and mechanical properties of the NiCr coating were studied, the wear resistance and...
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Article
Novel phenanthro[9,10-d]imidazole-zinc complex as a host for high-performance OLEDs
In this work, a novel phenanthro[9,10-d]imidazole-zinc coordination complex (Zn(TPPI)2) is reported. This compound exhibits suitable physical properties for a host material. First, its highest occupied molecular ...
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Article
Facile synthesis of heterojunctions by hydrothermal decoration of CdS on electrospun BiVO4 nanofibers with boosted photocatalytic activity
Bismuth vanadate (BiVO4) is a promising photocatalyst material for photocatalytic degradation of organic pollutions. However, the fast recombination of photo-induced charge and insufficient light absorption often...
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Article
Effect of Laser Remelting on Microstructure and Properties of AlCoCrFeNi High-Entropy Alloy Coating
A high-entropy alloy coating of AlCoCrFeNi was prepared by plasma spraying and then remelted via laser remelting. The effect of laser remelting on the microstructure, mechanical properties and wear resistance ...
