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8th International Congress on the science and Technology of Steelmaking, ICS 2022

作者： Mir, Ishfaq Pande, Manish M. Department of Metallurgical Engineering and Material Science Indian Institute of Technology Bombay Maharashtra Mumbai400076 India

ISBN: (纸本)9780930767136

The activity coefficient (γi) of a component in a ternary system can be represented by Wagner's Taylor series expansion. Alternatively, we can also obtain γI from a Redlich polynomial representing the excess Gibbs free energy (gE) of the system. In the present work, a quartic formalism has been developed for a ternary system to represent thermodynamic properties that connects available interaction parameter data on binary and ternary systems by 1. applying Gibbs Duhem equation to the Taylor's series expansion of the components 2. differentiating (Equation persented) with respect to n1, n2 and n3. It has been found that the interaction parameters are reduced from n2 + 3n to 1/2 (n − 1)(n + 4) due to the interrelationship between various interaction parameters. Therefore, the nth order interaction parameters in nth order truncation are not required as they can be obtained from lower order interaction parameters. © 2022 by the Association for Iron & Steel Technology.

关键词： Expansion

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A COMPARATIVE STUDY ON MANUFACTURING TECHNIQUES FOR PRODUCTION OF SUSTAINABLE RECYCLATE SANDWICH COMPOSITES 23

A COMPARATIVE STUDY ON MANUFACTURING TECHNIQUES FOR PRODUCTI...

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23rd International Conference on Composite materials, ICCM 2023

作者： Ravindran, Bharat Feuchter, Michael Schledjewski, Ralf Department of Polymer Engineering Processing of Composites Montanuniversität Leoben Leoben8700 Austria Department of Polymer Engineering Material Science and Testing of Polymers Montanuniversität Leoben Leoben8700 Austria

The use of natural fibres as reinforcement in composites has drawn a lot of attention for producing sustainable semi-engineered applications. Although natural fibre composite has witnessed significant progress, the suitable processes for manufacturing recycled sandwich composite remains a major challenge. This paper aims to make a comparative study of sandwich composite panels produced by two manufacturing technique namely resin transfer moulding (RTM) and vacuum assisted resin infusion (VARI). Both RTM and VARI belong to the family of liquid composite moulding (LCM) processes, but the differences in the processing methods can have a significant impact on the final product. Additionally, in an effort to determine the implications of size on the mechanical performance, sandwich composite panels were also constructed using recycled materials in the sizes of ~4 mm and ~10 mm. Density measurements, flexural and shear test performance are used to compare the composites manufactured by these two processes. The results indicate that sandwich panels produced from resin transfer moulding with recyclate size 4mm have enhanced densities and high load energy absorption, flexural strength and shear strength. The findings demonstrate unequivocally that manufacturing processes and recyclate size have a significant impact on material performance. © 2023 International Committee on Composite materials. All rights reserved.

关键词： Resin transfer molding

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The Non Evaporable Getters with High Throughput Pores and Chalking Resistance Applied to the Hydrogen Maser 37

The Non Evaporable Getters with High Throughput Pores and Ch...

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37th European Frequency and Time Forum, EFTF 2024

作者： Hou, Xueling Xiang, Jie Shen, Yihan Dai, JIayu Huang, Shuiming Lu, Tao School of Materials Science and Engineering Shanghai University Shanghai China ShangHai King Material Technology Ltd Shanghai University Technical Department Shanghai China Astronomical Observatory Chinese Academy of Sciences Time & Frequency Research Laboratory Shanghai China ShangHai King Material Technology Ltd. Technical Department Shanghai China

ISBN: (纸本)9798350354270

The effect of Cr addition on the hydrogen sorption characteristics of Zr56.97V35.85Fe7.18-xCrx (x=07.18) series alloys was studied in this paper. With the increase of Cr content, the hydrogen sorption kinetics of the alloy increased from 90 s to 25 s;the hydrogen sorption capacity increased from 2.19 wt% to 2.24 wt%. When x = 7.18, the alloys obtained the best comprehensive hydrogen sorption performance. The spherical powder of optimum Zr56.97V35.85Cr7.18 alloy was by plasma rotating electrode process (PREP). Then a 400 liter non evaporable getter pump (NEG pump) with Zr56.97V35.85Fe7.18-xCrx (x=0, 7.18) spherical powder porous structure was produced. NEG pump's initial hydrogen sorption speed and total hydrogen sorption quantity in 2 hours is 478 L s(x=7.18),780 PaL, respectively. The hydrogen sorption characteristics of Zr-V-Cr NEG pump is better than that of Zr-V-Fe. The contribution of this work solved the contradiction between sorption performance and mechanical properties of NEG pump in the application of hydrogen maser. © 2024 IEEE.

关键词： Getters

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Long-range enhancement for fluorescence and Raman spectroscopy using Ag nanoislands protected with column-structured silica overlayer

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Light(science & Applications) 2024年第12期13卷 3158-3170页

作者： Takeo Minamikawa Reiko Sakaguchi Yoshinori Harada Hiroki Tanioka Sota Inoue Hideharu Hase Yasuo Mori Tetsuro Takamatsu Yu Yamasaki Yukihiro Morimoto Masahiro Kawasaki Mitsuo Kawasaki Department of Systems Innovation Graduate School of Engineering ScienceOsaka UniversityOsaka 560-8531Japan Division of Interdisciplinary Researches for Medicine and Photonics Institute of Post-LED PhotonicsTokushima UniversityTokushima 770-8506Japan Department of Pathology and Cell Regulation Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyoto 602-8566Japan PRESTO Japan Science and Technology Agency(JST)Tokushima 770-8506Japan Institute for Integrated Cell-Material Sciences(iCeMS) Kyoto UniversityKyoto 606-8501Japan Department of Synthetic Chemistry and Biological Chemistry Graduate School of EngineeringKyoto UniversityKyoto 615-8510Japan Department of Medical Photonics Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyoto 602-8566Japan Technology and Engineering Division Ushio Inc.Hyogo 671-0224Japan The Institute of Science and Industrial Research Osaka UniversityOsaka 567-0047Japan Department of Molecular Engineering Graduate School of EngineeringKyoto UniversityKyoto 615-8510Japan

We demonstrate long-range enhancement of fluorescence and Raman scattering using a dense random array of Ag nanoislands(AgNIs)coated with column-structured silica(CSS)overlayer of over 100 nm thickness,namely,remote plasmonic-like enhancement(RPE).The CSS layer provides physical and chemical protection,reducing the impact between analyte molecules and metal *** plates are fabricated with high productivity using sputtering and chemical immersion in gold(I)/halide *** RPE plate significantly enhances Raman scattering and fluorescence,even without proximity between analyte molecules and metal *** maximum enhancement factors are 10^(7)-fold for Raman scattering and 102-fold for *** is successfully applied to enhance fluorescence biosensing of intracellular signalling dynamics in HeLa cells and Raman histological imaging of oesophagus *** findings present an interesting deviation from the conventional near-field enhancement theory,as they cannot be readily explained within its ***,based on the phenomenological aspects we have demonstrated,the observed enhancement is likely associated with the remote resonant coupling between the localised surface plasmon of AgNIs and the molecular transition dipole of the analyte,facilitated through the CSS *** further investigation is warranted to fully understand the underlying mechanisms,the RPE plate offers practical advantages,such as high productivity and biocompatibility,making it a valuable tool for biosensing and biomolecular analysis in chemistry,biology,and *** anticipate that RPE will advance as a versatile analytical tool for enhanced biosensing using Raman and fluorescence analysis in various biological contexts.

关键词： structure silica protected

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An anti-bacterial porous shape memory self-adaptive stiffened polymer for alveolar bone regeneration after tooth extraction

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Bioactive materials 2023年第3期21卷 450-463页

作者： Weijun Zhang Meilin Yu Yongqiang Cao Zihan Zhuang Kunxi Zhang Dong Chen Wenguang Liu Jingbo Yin Department of Polymer Materials School of Materials Science and EngineeringShanghai UniversityShanghai200444China Department of Endodontics Shanghai Stomatological Hospital&School of StomatologyFudan UniversityShanghai200001China Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases Fudan UniversityShanghai200001China School of Material Science and Engineering Tianjin Key Laboratory of Composite and Functional MaterialsTianjin UniversityTianjin300350China

The regeneration of alveolar bone after tooth extraction is critical for the placement of dental *** a rigid porous scaffold with defect shape adaptability is of great importance but challenging for alveolar bone ***,we design and synthesize a biocompatible poly(L-glutamic acid)-g-poly(ε-caprolactone)(PLGA-g-PCL)porous shape memory(SM)*** PLGA-g-PCL is then copolymerized with acryloyl chloride grafted poly(ω-pentadecalactone)(PPDLDA)having a higher phase transition temperature than shape recovery temperature to maintain stiffness after shape recovery to resist chewing *** hybrid pol-ydopamine/silver/hydroxyapatite(PDA/Ag/HA)is coated to the surface of(PLGA-g-PCL)-PPDL scaffold to afford the anti-bacterial *** porous SM scaffold can be deformed into a compact size and administered into the socket cavity in a minimally invasive mode,and recover its original shape with a high stiffness at body tem-perature,fitting well in the socket *** SM scaffold exhibits robust antibacterial activity against Staphy-lococcus aureus(***).The porous microstructure and cytocompatibility of PLGA allow for the ingrowth and proliferation of stem cells,thus facilitating osteogenic *** micro-CT and histological analyses demonstrate that the scaffold boosts efficient new bone regeneration in the socket of rabbit mandibular first *** porous shape memory self-adaptive stiffened polymer opens up a new avenue for alveolar bone regeneration.

关键词： Shape memory scaffold Alveolar bone regeneration Stiffened Self-adaptive Anti-Bacterial

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New insights into the mechanism of localised corrosion induced by TiN-containing inclusions in high strength low alloy steel

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Journal of materials science & Technology 2022年第29期124卷 141-149页

作者： Chao Liu Reynier I.Revilla Xuan Li Zaihao Jiang Shufeng Yang Zhongyu Cui Dawei Zhang Herman Terryn Xiaogang Li Institute of Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China National Materials Corrosion and Protection Data Center University of Science and Technology BeijingBeijing 100083China Department of Materials and Chemistry Research Group Electrochemical and Surface EngineeringVrije Universiteit BrusselBrusselsBelgium School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Department of Material Science and Engineering Ocean University of ChinaQingdao 266100China

This work investigated the chemical and electrochemical mechanisms of localised corrosion triggered by CaS·xMgO·y Al_(2)O_(3)·TiN complex inclusions in high strength low alloy steel(HSLAS)under a simulated marine *** focus was given to the role of the TiN portion of the inclusion on the initiation and growth of the corrosion *** thermodynamic process of pitting initiation was investigated by Gibbs free energy,Pourbaix diagram and first principle *** corrosion is mainly induced by inclusions and triggered by dissolution of adjacent distorted *** dissolution of CaS portion in CaS·xMgO·y Al_(2)O_(3)·TiN complex inclusion creates an acidic aggressive environment that accelerates the further dissolution of inclusion and *** coupling effect between TiN inclusion and matrix is directly *** covered with a TiOfilm acts as the cathodic phase in galvanic corrosion,although it has a lower Volta potential than the *** is an unusual correlation with the scanning Kelvin probe force microscopy result,which has been explained for this special system.

关键词： High strength low alloy steel TiN-containing inclusion Localised corrosion Pourbaix diagram First principle calculation

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A NEW METHOD FOR MANUFACTURING ANODE SUPPORTED SOLID OXIDE FUEL CELLS WITH AFL 23

A NEW METHOD FOR MANUFACTURING ANODE SUPPORTED SOLID OXIDE F...

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23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022

作者： Akduman, Osman Yağız Uyanık, Mehmet Sinan Kabakcı, Elif Soydan, Ali Murat Gebze Technical University Engineering Faculty Department of Material Science and Engineering Kocaeli Gebze Turkey Gebze Technical University Institute of Energy Technologies Kocaeli Gebze Turkey Canakkale 18 Mart University Engineering Faculty Department of Material Science and Engineering Kocaeli Gebze Turkey

ISBN: (纸本)9786250008430

In this study, a new method to manufacture anode supported SOFCs (solid oxide fuel cells) with AFL (anode functional layer) is proposed. To manufacture the anode supports, anode mixture with polyethylene glycol (PEG) is prepared and anode mixture is fed into a twin screw extruder and extruded in the shape of tubes. PEG in the anode tubes is selectively removed to by water debinding and sweat debinding methods and AFL layer is obtained with different microstructure and porosity. SEM (Scanning electron microscope) images of the manufactured SOFCs show AFL layers with the thickness of approximately 7 µm, which is akin to the values given in the literature. Electrolyte and cathode layers are added to the anode tubes using dip coating. Effects of AFL on performance of the manufactured cells are tested. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.

关键词： Anodes

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Towards developing Mg alloys with simultaneously improved strength and corrosion resistance via RE alloying

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Journal of Magnesium and Alloys 2021年第1期9卷 41-56页

作者： Jinshu Xie Jinghuai Zhang Zihao You Shujuan Liu Kai Guan Ruizhi Wu Jun Wang Jing Feng Key Laboratory of Superlight Material and Surface Technology Ministry of EducationCollege of Material Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Department of Materials Physics and Chemistry Harbin Institute of TechnologyHarbin 150001China Department of Materials Science and Engineering University of TokyoTokyoJapan Ningbo Branch Ordnance Science Institute of ChinaNingbo 315103China

Magnesium(Mg)alloys have received an increasing interest in the past two decades for their tremendous application *** strength and corrosion resistance levels of common Mg alloys are still relativity low,and especially they are to be improved *** addition of rare earth(RE)to Mg alloys is believed to be beneficial for both the strength and corrosion resistance,and some RE-modified traditional Mg alloys have been studied and some new RE-containing Mg alloys have been developed by ***,further simultaneous improvements in both strength and anti-corrosion require a better understanding of the behavior and mechanism of RE in Mg *** this review,the common influence mechanisms of RE on mechanical and anti-corrosion properties of Mg alloys are summarized,and the latest research progress of RE-containing Mg alloys with simultaneously improved strength and corrosion resistance are *** is demonstrated that the research on high-strength and high corrosion resistant RE-containing Mg alloys is still immature,and some opinions and suggestions are put forward for the synergetic improvement of the strength and corrosion resistance of Mg alloys,so as to contribute to the further development of Mg alloys with higher performance.

关键词： Mg alloy Rare earth(RE) High strength Corrosion resistance

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Morphology effects in MnCeO_(x)solid solution-catalyzed NO reduction with CO:Active sites,water tolerance,reaction pathway

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Nano Research 2023年第5期16卷 6951-6959页

作者： Quanquan Shi Yifei Zhang Zhiwen Li Zhongkang Han Liangliang Xu Alfons Baiker Gao Li College of Science&College of Material Science and Art Design Inner Mongolia Agricultural UniversityHohhot 010018China College of Chemistry and Chemical Engineering Shenyang Normal UniversityShenyang 110034China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and TechnologyDaejeon 34141Republic of Korea Department of Chemistry and Applied Biosciences Institute for Chemical and BioengineeringETH ZurichHönggerbergHClCH-8093 ZurichSwitzerland

Morphological effects of nanoparticles are crucial in many solid-catalyzed chemical *** herein prepared two manganese-ceria solid solutions,well-defined MnCeO_(x)nanorods and MnCeO_(x)-nanocubes,exposing preferentially(111)and(100)facets of ceria,*** incorporation of Mn dopant into ceria lattice strongly enhanced the catalytic performance in the NO reduction with ***_(x)(111)catalyst outperformed MnCeO_(x)(100)counterpart due to its higher population density of oxygen vacancy ***-situ infrared spectroscopy investigations indicated that the reaction pathway over MnCeO_(x)and pristine CeO_(2)is similar and that besides the direct pathway,an indirect pathway via adsorbed hyponitrite as an intermediate cannot be ruled out.X-ray photoelectron and Raman spectroscopies as well as first-principles density functional theory(DFT)calculations indicate that the enhanced catalytic performance of MnCeO_(x)can be traced back to its“Mn–OL(VÖ)–Mn–OL(VÖ)–Ce”*** Mn dopant strongly facilitates the formation of surface oxygen vacancies(VÖ)by liberating surface lattice oxygen(OL)via CO*+OL→CO_(2)*+VÖand promotes the reduction of NO,according to NO*+VÖ→N*+OL and 2N*→N_(2).The Mn dopant impact on both the adsorption of CO and activation of OL reveals that a balance between these two effects is critical for facilitating all reaction steps.

关键词： NO reduction with CO manganese-ceria solid solution morphology effects reaction mechanism active sites

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Enhanced Li storage of pure crystalline-C_(60) and TiNb_(2)O_(7)-nanostructure composite for Li-ion battery anodes

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Journal of Energy Chemistry 2024年第10期97卷 478-485,I0010页

作者： Injun Jeon Linghong Yin Dingcheng Yang Hong Chen Seong Won Go Min Seung Kang Hyung Soo Ahn Chae-Ryong Cho Department of Nano Fusion Technology Pusan National UniversityBusan 46241South Korea Division of Energy&Environmental Technology Daegu Gyeongbuk Institute of Science&Technology(DGIST)Daegu 42988South Kored College of Life Sciences Qingdao Agricultural UniversityQingdao 266109ShandongChina Department of Electronics Material Engineering Korea Maritime and Ocean UniversityBusan 49112South Korea Department of Nanoenergy Engineering Pusan National UniversityBusan 46241South Korea

We propose a method for producing composite materials(hTNO@C_(60))comprising crystalline C_(60)particles and hollow-structu red TiNb_(2)O_(7)(hTNO)nanofibers via facile liquid-liquid interface precipitation followed by low-temperature *** allows the systematic design of crystalline C_(60)as an active material for Li-ion battery *** hTNO@C_(60)composite demonstrates outstanding cyclic stability,retaining a capacity of 465 mA h g^(-1)after 1,000 cycles at 1 A g^(-1)It maintains a capacity of 98 mA h g^(-1)even after16,000 ultralong cycles at 8 A g^(-1)The enhancement in electrochemical properties is attributed to the successful growth and uniform doping of crystalline C_(60),resulting in improved electrical *** excellent electrochemical stability and properties of these composites make them promising anode materials.

关键词： Li-ion battery Anode material TiNb_(2)O_(7) nanofiber Fullerene Electrochemical performance

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