Yubao Xiao

Shanghai Ocean University

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Numerical Simulation of the Electromagnetic Dross Removal Technology Applied in Zinc Pot of Hot-Dip Galvanizing Line

Metals (2022)

Yubao Xiao Qingtao Guo Tie Liu Qiang Wang Chai Ming-liang

The forming of zinc dross floating on the surface of molten zinc in zinc pot is inevitable during hot-dip galvanizing production. The cleaning of zinc dross has always been a challenge and a difficult problem to solve. Based on the electromagnetic field theory and its application, a new electromagnetic dross removal technology was proposed, and the zinc dross driven by flowing molten zinc was possible to remove in an electromagnetic field circumstance. Through the coupling simulation of electromagnetic field and flow field, the electromagnetic force acting on molten zinc and the flow situation of molten zinc were simulated. The results showed that electromagnetic field can effectively act on the top surface of molten zinc and affect the flow of molten zinc. Different load conditions of electromagnetic field and the distance between the bottom surface of the iron core and the top surface of molten zinc related to zinc dross removal effect were discussed. Finally, the optimal application parameters of the electromagnetic dross removal technology were put forward.

Dross

10.3390/met12101714

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Citations (2)

Effect of crystal orientation on droplet wetting behavior on single-crystal Al2O3 substrates: An experimental study

Physics of Fluids (2020)

Chengyu He Tie Liu Lei Tian Yubao Xiao Yuan Shang

The wetting property of liquids on a solid surface is of key relevance to many areas ranging from biological systems to industrial applications. The wetting behavior of water, glycerin, and castor oil (featuring varying viscosities and surface energies) on single-crystal α-Al2O3 substrates with various crystal orientations of (0001), (112¯0), (101¯0), and (011¯2) was studied using the improved sessile drop method at room temperature and a closed environment. The effects of substrate crystal orientation on the liquid wetting behavior and its dependence on the liquid type were investigated. The contact angle of all three liquids on the (0001)-orientated substrates was obviously smaller than those of the other substrate orientations. The effects of α-Al2O3 substrate crystal orientation on the liquid wetting behavior on the substrates can be attributed to the liquid and substrate surface energies, the liquid viscosity, and the substrate atomic arrangement. The wetting process of water on α-Al2O3 could be divided into two stages. The contact angle was basically unchanged in stage I, and evaporation of droplets causes stepwise decreases of the contact angle in stage II. The height and contact angle of glycerin and castor oil on the substrates change very slowly in 1800 s. The findings of this study help provide a better understanding of the wetting behavior of liquids on solids and its mechanism.

Wetting transition

Crystal (programming language)

10.1063/5.0030285

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Citations (5)

Instrument to characterize the wetting behavior of molten metal on a solid substrate under high magnetic field

Review of Scientific Instruments (2019)

Yubao Xiao Tie Liu Zhengyang Lu Shuang Yuan Guojian Li

A specially developed experimental platform to measure the wettability of molten metals on solid substrates under high magnetic fields in combination with the sessile drop method is presented in this work. The desired magnetic field was generated by a superconducting magnet containing a channel with a diameter of 300 mm, in which the main body of the experimental apparatus was installed. The developed setup was used to observe the in situ wetting behavior of a molten metal on a solid substrate and simultaneously record sample images in real time under a high magnetic field during the wetting process. Contact angles were determined by analyzing the recorded images with the help of analytical software. Experiments using a typical molten metal and a solid substrate were conducted. The results revealed that the wettability of the molten metal on the solid substrate was obviously improved under a high external magnetic field.

Molten metal

10.1063/1.5094376

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Citations (11)

Replacement of fish meal with defatted black soldier fly (Hermetia illucens) in diet of Pacific white shrimp (Litopenaeus vannamei): growth, flesh quality and transcriptome

Journal of Insects as Food and Feed (2024)

Ji Zheng Z. Gan Tianxiao Huang Yubao Xiao Wenyue Xu

Abstract This study evaluated the impacts of replacing fish meal (FM) with defatted black soldier fly ( Hermetia illucens ; BSF) on the growth performance, flesh quality and transcriptome of Pacific white shrimp ( Litopenaeus vannamei ). In a diet containing 560 g/kg FM, BSF was used to replace 0%, 20%, 40%, 60%, 80% and 100% of dietary FM (BSF0, BSF20, BSF40, BSF60, BSF80 and BSF100). Thus, six isonitrogenous and isolipidic diets were prepared, and then fed to juvenile Pacific white shrimp (1.70 ± 0.10 g) for 60 days. In growth performance, the BSF20 group showed the similar FCR and WGR to the control group ( ), and the other four BSF groups presented significantly lower WGR and higher FCR than the BSF0 group ( ). The flesh chewiness and the contents of crude lipid, collagen and total amino acid in flesh were significantly decreased ( ), and flesh cooking loss, thawing loss was significantly increased when the replaced FM was ≥40% ( ). When the replaced FM reached 60%, the flesh hardness, heat-insoluble collagen content, shear force, body surface redness and the ratio of n-3/n-6 fatty acids were significantly lower ( ), while n-6 polyunsaturated fatty acid content and total free amino acid content in flesh were significantly higher than those of the BSF0 group ( ). Hepopancreatic samples were used for transcriptomic analysis, and a total of 1,456 differentially expressed genes (DEGs) were identified between the BSF groups and BSF0 group, which were mainly involved in growth-promoting, energy metabolism and antioxidant capacity key pathways and genes, including the cathepsin L , folate synthesis pathway, redox-related genes and glutathione metabolism pathway. In conclusion, in a diet containing 560 g/kg FM, BSF could successfully replace 20% of dietary FM, and higher FM replacement (≥40%) decreased the growth performance and flesh quality of Pacific white shrimp.

Litopenaeus

Hermetia illucens

Flesh

White (mutation)

10.1163/23524588-00001235

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Citations (0)

Unveiling the SEI layer formed on pillar-structured MXene anode towards enhanced Li-ion storage

Scripta Materialia (2021)

Nana Zhao Yijun Yang Yubao Xiao Chong Wang Minh Ngoc Ha

MXenes

10.1016/j.scriptamat.2021.113988

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Citations (12)

Research on solidification behavior of a high Mn steel during continuous casting based on solidification characteristic unit analysis

Materials Letters (2022)

Dong Pan Honggang Zhong Qingtao Guo Yuting Li Yubao Xiao

Equiaxed crystals

Liquid steel

10.1016/j.matlet.2022.133028

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Citations (3)

Wetting Transition in a Molten Metal and Solid Substrate System in High Magnetic Fields

Metallurgical and Materials Transactions A (2020)

Yubao Xiao Tie Liu Zhengyang Lu Guojian Li Shuang Yuan

Wetting transition

10.1007/s11661-020-05706-3

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Citations (9)

Wetting behaviors of molten melt drops on polycrystalline Al2O3 substrates in high magnetic fields

Journal of Material Science and Technology (2019)

Tie Liu Yubao Xiao Zhengyang Lu Noriyuki Hirota Guojian Li

Molten metal

10.1016/j.jmst.2019.08.037

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Citations (15)

Microstructure evolution of peritectic Al–18 at.% Ni alloy directionally solidified in high magnetic fields

Journal of Material Science and Technology (2020)

Yubao Xiao Tie Liu Yuxin Tong Meng Dong Jinshan Li

Directional solidification

Lorentz force

Rotating magnetic field

Magnetic shape-memory alloy

10.1016/j.jmst.2020.11.004

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Citations (15)

Magnetic and magnetoresistive properties of cubic Laves phase HoAl$_2$ single crystal

arXiv (Cornell University) (2011)

M. Patra S. Majumdar S. Giri Yubao Xiao Tapan Chatterji

We report the magnetization ($M$) and magnetoresistance (MR) results of HoAl$_2$ single crystals oriented along $<100>$ and $<110>$ directions. Although HoAl$_2$ has cubic Laves phase structure, a large anisotropy is observed in $M$ and MR results below Curie temperature ($T_C$) at 31.5 K. A satisfactory correlation between magnetic entropy change ($\Delta S_M$) and MR could be established along $<110>$ direction and in $<100>$ direction except for the temperature ($T$) region, around which spin reorientation takes place. Large inverse magnetocaloric effect is observed at low-$T$ which is associated with the spin reorientation process in $<100>$ direction. A theoretical model based on Landau theory of phase transition can describe $T$-variation of -$\Delta S_M$ for $T > T_C$.

Magnetic refrigeration

Laves phase

10.48550/arxiv.1107.1975

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Citations (2)