938 Result(s)
within
**a Zhai
Materials Science
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Article
Dissimilar Laser Welding of Plastic to Stainless Steel with a Flat-Top Heat Source: Numerical Simulation and Experimental Investigation
Diode laser with a flat-top beam was very suitable for the joining of plastic and metals as its uniform energy distribution to fine tuning the temperature, which facilitates the melting of plastic achieving a ...
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Article
Open AccessA programmable topological photonic chip
Controlling topological phases of light allows the observation of abundant topological phenomena and the development of robust photonic devices. The prospect of more sophisticated control with topological phot...
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Article
Fabrication of SiO@Graphite@C@Al2O3 as Anode Material for Lithium-Ion Batteries
In this study, SiO@graphite@C@Al2O3 (SiO@G@C@A) composites are synthesized by varying the content of Al2O3, and their morphology and structure and their electrochemical performance are investigated in detail. The...
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Article
Short-term comprehensive prediction method for regional earthquakes based on multi-source information fusion
To solve the problem of short-term earthquake prediction, this study is in view of multi-source information fusion, using precursor observation data from 11 measurement items as experimental data. Then the stu...
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Article
Enhanced piezoelectric performances induced by the flatten Gibbs free energy of BiFeO3-based ceramics
Herein, the 0.725Bi1-xLaxFe0.985Sc0.015O3 − 0.275BaTiO3 (x = 0, 0.005, 0.010, 0.015; abbreviated as 0La, 5La, 10La, 15La, BLFS-BT) with additive of MnO2 were prepared with traditional ceramic technologies. Pure p...
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Article
Hot Tearing of Fe-18Mn-0.6C-2.6Al High Manganese Steel
Fe-Mn-C-Al high manganese steel has a large tendency to hot tearing, making it difficult to continuously cast and even leading to steel leakage accidents. In this paper, the effects of cooling rate and strain ...
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Effect of Isothermal Annealing on the Corrosion Resistance of Detonation Sprayed Fe-Based Amorphous Coatings
During this study, the effects of isothermal annealing on the corrosion resistance of a detonation sprayed Fe-based amorphous coating were investigated. Microscopic analysis revealed that the Fe-based amorphou...
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Article
Low-threshold upconversion plasmonic lasers based on CsPbBr3 nanoplates
Upconversion lasers offer a robust platform for the new generation of highly integrated nonlinear optoelectronic applications. They are central in addressing the ongoing pursuit of miniaturization, low loss, a...
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Precipitation Behavior of TiN During the Solidification of High-Titanium Steel
TiN is an inevitable inclusion in high-titanium steel, and controlling its size and distribution is the key to balancing the wear resistance and service life of high-titanium steel. In this paper, the precipit...
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Article
Liquid-phase epitaxial layer by layer brushing fabrication of metal-organic frameworks films
Development of metal-organic framework (MOF) films is of great importance to expand their applications. Herein, we report a facile and universal method of liquid-phase epitaxial (LPE) layer by layer (LBL) brus...
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Article
Fabrication of superhydrophobic aluminum alloy surfaces by nickel and phosphorus chemical deposition
The special wettability of superhydrophobic aluminum alloys has a broad applied foreground in important industrial fields, such as aviation, automobiles, and ships. However, the microstructures of superhydroph...
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Numerical Simulation of Melt Flow, Heat Transfer and Solidification in Final Solidification Zone of Bloom Continuous Casting with Vertical Linear Electromagnetic Stirring
In this study, a novel technique of Vertical Linear Electromagnetic Stirring (V-LEMS) was proposed and applied in the final solidification zone of the 260 mm × 300 mm GCr15 bearing steel continuous casting (CC...
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Comparative Study on the Microstructure and Properties of 304 Stainless Steel Coatings Prepared by High-Velocity Oxygen Fuel Spraying and Air Plasma Spraying
The 304 stainless steel coatings were applied to a 6061-T6 aluminum alloy substrate using high-velocity oxygen fuel spraying (HVOF) and air plasma spraying (APS) techniques. The objective of this study was to ...
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Article
Mn/Co co-doped porous carbon material derived from self-assembly of CoPc and ZIF-11 for oxygen reduction reaction
Develo** low-cost, high-performance oxygen reduction reaction (ORR) electrocatalyst plays a key role in promoting the low-carbon green production. Herein, a Mn/Co co-doped carbon-based non-noble metal electr...
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Microstructures and mechanical properties of TiAl joint brazed with Ti-Mn-Fe-Ni-Zr system medium-entropy filler alloy
A five-element medium-entropy filler alloy with composition of Ti-(18 ~ 24)Mn-(12 ~ 18)Fe-(3 ~ 8)Ni-(3 ~ 8)Zr (wt.%) was proposed for vacuum brazing of TiAl-based alloy. The filler alloy was mainly composed of...
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Article
Regulating the hydrogenation selectivity of platinum using a two-dimensional zeolite
Unsaturated alcohols are important pharmaceutical intermediates; however, their synthesis from unsaturated aldehydes is challenging because the C=C hydrogenation is more thermodynamically preferential than the...
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The facile preparation and performances of prelithiated silicon oxide anode materials
Silicon oxide (SiOx) anode materials have gained significant attention in lithium-ion batteries due to their high theoretical specific capacity (above 1965 mAh g−1), relatively stable cycling performance, and low...
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Effect of Electric Field on the Microstructure and Properties of NiAl Alloy Sheet Prepared by Foil Reaction Synthesis
NiAl alloy sheet was successfully prepared using current-assisted sintering, thus verifying the possibility of preparing a NiAl thin-wall component by current-assisted sintering and foil/foil reaction synthesi...
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Article
Fibration of powdery materials
Non-destructive processing of powders into macroscopic materials with a wealth of structural and functional possibilities has immeasurable scientific significance and application value, yet remains a challenge...
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Open AccessScientific analysis of two compound eye beads unearthed in Hejia Village, Zhouling
The glass compound eye bead is the exquisite embodiment of the glassmaking technology of ancient craftsmen, and is an example of the cultural exchange between China and the West during the Warring States Perio...
