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Bio-Inspired Ionic Sensors: Transforming Natural Mechanisms into Sensory Technologies

Nano-Micro Letters 2025年第8期17卷 67-94页

作者： Kyongtae Choi Gibeom Lee Min-Gyu Lee Hee Jae Hwang Kibeom Lee Younghoon Lee Department of Mechanical Engineering Kyung Hee University1732 Deogyeong-daeroGiheung-guYonginGyeonggi-do 17104Republic of Korea Department of Mechanical Engineering Gachon University1342 Seongnam-daeroSujeong-guSeongnamGyeonggi-do 13120Republic of Korea Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Mechanical Design Engineering Kumoh National Institute of Technology61 Daehak-roGumiGyeongsangbuk-do 39177Republic of Korea

Many natural organisms have evolved unique sensory systems over millions of years that have allowed them to detect various changes in their surrounding *** systems feature numerous receptors—such as photoreceptors,mechanoreceptors,and chemoreceptors—that detect various types of external stimuli,including light,pressure,vibration,sound,and chemical *** stimuli are converted into electrochemical signals,which are transmitted to the brain to produce the sensations of sight,touch,hearing,taste,and *** by the biological principles of sensory systems,recent advancements in electronics have led to a wide range of applications in artificial *** the current review,we highlight recent developments in artificial sensors inspired by biological sensory systems utilizing soft ionic *** versatile characteristics of these ionic materials are introduced while focusing on their mechanical and electrical *** features and working principles of natural and artificial sensing systems are investigated in terms of six categories:vision,tactile,hearing,gustatory,olfactory,and proximity ***,we explore several challenges that must be overcome while outlining future research directions in the field of soft ionic sensors.

关键词： Sensors Iontronics Soft materials Biomimetics

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Impact of Ni doping into Co2SiO4 compound: Synthesis, structural, morphological, dielectric, optical, photoluminescence, and magnetic properties

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Ceramics International 2025年第15期51卷 20839-20853页

作者： Anil Kumar, Bharat Barwar, Abhishek Barbar, Shiv K. Materials Science Laboratory Department of Physics Jai Narain Vyas University Jodhpur342005 India Department of Mechanical Engineering BITS Pilani Rajasthan India

The fabrication and characterization of orthosilicate compounds have received great interest due to their unique optical and magnetic features, and numerous fundamental and technological applications. Herein, a series of Ni doped cobalt orthosilicate compounds, Co2-xNixSiO4 (x = 0.0, 0.1, 0.3 and 0.5) were fabricated via ceramic route by sintering the processed powder at high temperatures. The powder X-ray diffraction results revealed that these compounds crystallize in the orthorhombic symmetry with crystallite size ranging from 29 to 56 nm. Fourier transform infrared and Raman spectra support the phase pure formation of these compounds in the orthorhombic structure. The micro images illustrate a wide range particle size distributions, and elemental analysis affirms the right stoichiometry of these compounds. The dielectric constant and loss angle tangent spectra over the broader frequency range of 101–109 Hz reveal the fundamental polarization and relaxation characteristics of dielectric ceramics. Frequency dependent alternating current electrical conductivity and analysis of UV–Vis reflectance spectra exhibit the wide band gap semiconducting behaviour which establish uses of these compounds in futuristic power electronic module and optoelectronic devices. The fluorescence spectra show a little shift towards the lower wavelength in the emission band by increasing the Ni concentration in the compound. Additionally, the CIE coordinates explain that the blue-violet emission from these compounds, make them useful for cutting edge luminescent devices. Magnetic characterization identified the antiferromagnetic to paramagnetic transition (TN) in these compounds, together with a decrease in TN from 50 K (x = 0.0) to 38 K (x = 0.5). The low temperature (10 K) magnetic hysteresis loops confirm the existence of strong antiferromagnetism with weak ferromagnetism. The presence of two p-type semiconductors (cobalt oxide and nickel oxide) play an important role between magnetic

关键词： Nickel oxide

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Correlation of work function and stacking fault energy through Kelvin probe force microscopy and nanohardness in diluteα-magnesium

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Journal of Magnesium and Alloys 2024年第1期12卷 237-250页

作者： Yigit Türe Ali Arslan Kaya Hüseyin Aydin Jiang Peng Servet Turan Eskisehir Technical University Porsuk Vocational SchoolElectronics and Automation DepartmentProgram of MechatronicsEskisehirTurkey Mugla Sitki Kocman University Engineering FacultyMetallurgy and Materials Engineering DepartmentMuglaTurkey Hüseying Aydın TUBITAK MRCTurkey Jiang Peng Chongqing UniversityChina Eskisehir Technical University Engineering FacultyMaterials Science and Engineering DepartmentEskisehirTurkey

Electronic interactions of the Group 2A elements with magnesium have been studied through the dilute solid solutions in binary Mg-Ca,Mg-Sr and Mg-Ba *** investigation incorporated the difference in the‘Work Function'(ΔWF)measured via Kelvin Probe Force Microscopy(KPFM),as a property directly affected by interatomic bond types,*** electronic structure,nanoindentation measurements,and Stacking Fault Energy values reported in the *** was shown that the nano-hardness of the solid-solutionα-Mg phase changed in the order of Mg-Ca>Mg-Sr>***,it was shown,by also considering the nano-hardness levels,that SFE of a solid-solution is closely correlated with its‘Work Function'***-hardness measurements on the eutectics andΔWF difference between eutectic phases enabled an assessment of the relative bond strength and the pertinent electronic structures of the eutectics in the three *** withΔWF and at least qualitative verification of those computed SFE values with some experimental measurement techniques were considered important as those computational methods are based on zero Kelvin degree,relatively simple atomic models and a number of *** asserted by this investigation,if the results of measurement techniques can be qualitatively correlated with those of the computational methods,it can be possible to evaluate the electronic structures in alloys,starting from binary systems,going to ternary and then multi-elemental *** investigation has shown that such a qualitative correlation is *** all,the SFE values are not treated as absolute values but rather become essential in comparative investigations when assessing the influences of alloying elements at a fundamental level,that is,free electron density *** study indicated that the principles of‘electronic metallurgy'in developing multi-elemental alloy systems can be followed via practical experimental methods,i.e.ΔWF measurements using KPF

关键词： Mg alloys Dilute alloys Work function Stacking fault energy Kelvin probe force microscopy Short range order Miedema Nanoindentation Eutectics

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Constructing quasi-vertical fiber bridging behaviors of aramid pulp at interlayer of laminated basalt fiber reinforced polymer composites to improve flexural performances

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Chinese Journal of Aeronautics 2023年第12期36卷 477-488页

作者： Guangming YANG Fei CHENG Shihao ZUO Jinheng ZHANG Yang XU Yunsen HU Xiaozhi HU Yong WEI Guangjun GOU School of Materials and Chemistry Southwest University of Science and TechnologyMianyang 621010China Engineering Research Center of Biomass Materials Ministry of EducationSouthwest University of Science and TechnologyMianyang 621010China School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Department of Mechanical Engineering University of Western AustraliaPerth WA 6009Australia

Basalt Fiber Reinforced Polymer(BFRP)composites have huge potential application respects for some civil fields due to enough strength/modulus to weight and low cost by replacing carbon fiber *** at the issues in the Resin-Rich Region(RRR)and Interfacial Transition Region(ITR)of fiber reinforced polymer composites,the characteristic Aramid Pulp(AP)fibers with micro-fiber trunk and nano-fiber branches were manufactured into multiple non-woven ultra-thin interleaving at the interlayers of BFRP composites via compression molding to reinforce the flexural strengths and elastic *** fibers were introduced into RRR to form interleaving at the interlayer,the brittle epoxy adhesive layer was improved and enabled to avoid cracking under a low external *** fiber branches of AP were also embedded into BF layer to construct quasi-vertical fiber bridging behaviors in ITR,stronger mechanical interlocking was created to prevent crack propagation along the bonding interface of BF/***-point bending testing results showed the interleaving film with 4 g/m^(2)AP exhibited the best effect among various areal densities and yielded average 315.75 MPa in flexural strength and 21.38 GPa in elastic modulus,having a 63.4%increment and a 47.1%increment respectively compared with the ***,the simple and low-cost AP interleaving is confirmed as an effective method in improving interlayer structure and flexural performance of BFRP composites,which may be considered to manufacture high-performance laminated fiber reinforced polymer composites in civil aviation industry.

关键词： Basalt fiber reinforced polymer Aramid pulp fiber Resin-rich region Interfacial transition region Quasi-vertical fiber bridging behavior Flexural performance improvement

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Fabrication of nitride films by co-sputtering of high-entropy alloys and tungsten

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Journal of the Australian Ceramic Society 2023年第1期59卷 105-115页

作者： Hu, Ding-Chiang Kuo, Dong-Hau Kao, Jin-Yih Chen, Chun-Sheng Tsao, Chung-Chen Hsu, Chun-Yao Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei10607 Taiwan Department of Mechanical Engineering Lunghwa University of Science and Technology Taoyuan33306 Taiwan

This study produces (AlCrNbSiTiV-W)N films onto soda-lime glass and SUS 304 stainless steel substrates using reactive co-sputtering. The target materials are high-entropy alloys (HEAs, AlCrNbSiTiV, 2 inches in diameter) and tungsten (W, 3 inches in diameter). The deposition time is 15 min, the sputtering power for targets of W and (AlCrNbSiTiV) is 200 W, the substrate temperature is 150 °C and the properties of (AlCrNbSiTiV-W)N films for various N2/(Ar + N2) flow ratios (0, 5, 10, 15, and 20%) are determined the mechanical properties (such as surface morphology, film hardness, wear, surface roughness, and corrosion resistance) and microstructure (such as grain size, lattice structure, and elemental content). The XRD results show that (AlCrNbSiTiV-W)N film has a W (110) diffraction peak at 2θ∼40°. The microstructure of (AlCrNbSiTiV-W)N film is uniform, dense structure, and there is no peeling or cracking. As the N2/(Ar + N2) flow ratio increases to 20%, the highest hardness is 37.52 GPa, Young’s modulus is 210.4 GPa, the lowest friction coefficient is 0.516, and the best corrosion resistance is –221.6 mV. © 2022, The Author(s) under exclusive licence to Australian Ceramic Society.

关键词： Corrosion resistance

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The vital application of rare earth for future high-performance electromagnetic wave absorption materials:A review

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Journal of materials science & Technology 2024年第9期176卷 188-203页

作者： Jing Qiao Lutong Li Jiurong Liu Na Wu Wei Liu Fan Wu Zhihui Zeng Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) School of Materials Science and EngineeringShandong UniversityJinan 250061China School of Mechanical Engineering Shandong UniversityJinan 250061China Department of Chemistry and Applied Biosciences ETH ZurichCH-8093 ZurichSwitzerland State Key Laboratory of Crystal Materials Shandong UniversityJinan 250061China School of Mechanical Engineering Nanjing University of Science&TechnologyNanjing 210094China

Rare earth(RE)takes an irreplaceable role in various fields,especially the high-tech electronics industry,which is usually comparable to the vitamin of *** the development of electromagnetic wave(EMW)absorption materials,the participation of RE makes a significant contribution as well,and great progress has been *** researches have illuminated that the strategy of both doping RE elements and constructing RE oxide composites exhibited huge potential for the fabrication of high-efficiency EMW absorption *** believe a systematic summary will be highly desired for a comprehensive understanding and future *** this review,we first summarized the research background,basic principles,and mechanisms of EMW ***,we classify the RE EMW absorption materials into RE-doped ferrites,RE-transition metal intermetallics,RE oxides,and other categories,view their current progress by typical studies,and expound their respective features,strengths,weaknesses,and absorption ***,the current challenges and future outlook of RE EMW absorption materials are highlighted,in the hope of guidance for a sound future development.

关键词： Rare earth Electromagnetic wave absorption Composite Rare earth oxide

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Highly dense and ultrathin gadolinia-doped ceria interlayer for enhanced performance of large-area anode-supported solid oxide fuel cell

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Progress in Natural science:materials International 2023年第5期33卷 733-741页

作者： Sang Woo Shin Amjad Hussain Muhammad Zubair Khan Dong Woo Joh Tak-Hyung Lim Seung-Bok Lee Jong-Eun Hong Joon Hyung Shim Rak-Hyun Song Hydrogen Energy Research Division Korea Institute of Energy Research Department of Mechanical Engineering Korea University Department of Advanced Energy and System Engineering Korea University of Science and Technology(UST) Department of Materials Science & Engineering Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology

The fabrication of a highly dense and ultrathin Gd doped ceria(GDC) interlayer on a large-area, porous electrolyte-coated planar anode support using vacuum slurry coating is studied for application in solid oxide fuel cells(SOFCs). The electrolyte-coated planar anode support body is fabricated by tape casting and pre-sintering is performed at 1100, 1150, and 1200°C. The GDC interlayer is coated onto the pre-sintered electrolyte-coated anode support using a vacuum slurry coating process with different immersion times(30–60 s). A highly dense and ultrathin GDC interlayer with a thickness of 1.48 μm is produced after co-sintering at 1400°C. The 1200°C pre-sintered electrolyte-coated anode support showed a thin and highly dense GDC interlayer which is attributed to a lower shrinkage difference between the coated GDC interlayer and pre-sintered body. The electrochemical performance of a vacuum slurry-coated GDC interlayer cell is 38 % higher compared to that of the screen-printed GDC-coated cell at 700°C due to the greatly reduced Ohmic and electrode polarization resistances. The considerable improvement in the performance is attributed to the ultrahigh GDC density which has prevented the secondary phase formation between the cathode and electrolyte. This study presents the economical, scalable, and reproducible process for the fabrication of highly robust GDC interlayer for the large-area planar anode-supported SOFCs.

关键词： Solid oxide fuel cell Vacuum slurry coating GDC interlayer Sintering Performance

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Interfacial reactions in the Sn-9.0 wt.% Zn/Cu-Ti alloy (C1990 HP) couple

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Soldering and Surface Mount Technology 2024年第1期36卷 30-38页

作者： Laksono, Andromeda Dwi Chen, Chih-Ming Yen, Yee-Wen Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei Taiwan Department of Chemical Engineering National Chung Hsing University Taichung Taiwan Study Program of Material and Metallurgical Engineering Institut Teknologi Kalimantan Balikpapan Indonesia

Purpose: The purpose of this study was to examine the influence of adding a small amount of Ti to a Cu-based alloy, specifically the commercial Hyper Titanium Copper alloy (C1990 HP), which contains Cu-3.28 wt.% Ti, on its interfacial reaction with Sn-9.0 wt.% Zn (SnZn) solder, using the liquid/solid reaction couple technique. Design/methodology/approach: The SnZn/C1990 HP couples were subjected to a reaction temperature of 240–270°C for a duration of 0.5–5 h. The resulting reaction couple was characterized using a scanning electron microscope, energy dispersive spectrometer, electron probe microanalyzer and X-ray diffractometer. Findings: It was observed that the scallop-shaped CuZn5 and planar Cu5Zn8 phases were formed in almost all SnZn/C1990 HP couples. With increased reaction duration and temperature, the Cu-rich intermetallic compound (IMC)-Cu5Zn8 phase became a dominant IMC formed at the interface. The total thickness of the IMCs was increased with the increase in the reaction duration and temperature. The IMC growth obeyed the parabolic law, and the IMC growth mechanism was diffusion controlled. The activation energy of the SnZn/C1990 HP couple was 64.71 kJ/mol. Originality/value: This article presents an analysis of the IMC thickness in each sample using ImageJ software, followed by kinetic analysis using Origin software at various reaction temperatures of SnZn/C1990 HP in liquid/solid couples. The study also includes detailed reports on the morphology, interface composition and X-ray diffraction analysis, as well as the activation energy. The findings can serve as a valuable reference for electronic packaging companies that utilize C1990 HP substrates. © 2023, Emerald Publishing Limited.

关键词： Binary alloys

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Data-driven mapping-relationship mining between hardness and mechanical properties of dual-phase titanium alloys via random forest and statistical analysis

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Rare Metals 2024年第2期43卷 829-841页

作者： Hai-Chao Gong Qun-Bo Fan Hong-Mei Zhang Xing-Wang Cheng Wen-Qiang Xie Kai Chen Lin Yang Jun-Jie Zhang Bing-Qiang Wei Shun Xu School of Materials Science and Engineering Beijing Institute of TechnologyBeijing100081China National Key Laboratory of Science and Technology on Materials Under Shock and Impact Beijing100081China Beijing Institute of Technology Chongqing Innovation Center Chongqing401135China Department of Mechanical and Materials Engineering University of Nebraska-LincolnLincolnNE68588USA

In order to accelerate the research on the property optimization of titanium alloy based on high-throughput methods,it is necessary to reveal the relationship between hardness and other mechanical properties which is still *** this work,taking Ti20C alloy as research object,almost all the microstructure of dual-phase titanium alloys were covered by traversing over 100 heat treatment ***,massive experiments including microstructure characterization and performance test were conducted,obtaining 51,590 pieces of microstructure data and 3591 pieces of mechanical property ***,based on large-scale data-driven technology,the quantitative mapping relationship between hardness and other mechanical properties was deeply *** results of random forest models showed that the correlation between hardness(H)and Charpy impact energy(A_(k))(or elongation,A)was hardly dependent on the microstructure types,while the relationship between H and tensile strength(R_(m))(or yield strength,R_(p0.2))was highly dependent on microstructure ***,combined with statistical analysis,it was found that the relationship between H and Ak(or A)were negatively ***,the relationship between H and strength was positively linear for equiaxed microstructure,and strength was linked to d^(−1/2)(d,equivalent circle diameter)ofα-grains in the form of classical Hall–Petch formula;but for other microstructures,the relationships were ***,the above rules were nearly the same in the rolling direction and transverse ***,a"four-quadrant partition map"between H and R_(p0.2)/R_(m) was established as a versatile material-screening tool,which can provide guidance for on-demand selection of titanium alloys.

关键词： Dual-phase titanium alloy Data-driven Hardness Mapping relationship

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Microstructural and electrochemical behaviour of severely surface-deformed 316L steel manufactured by conventional and selective laser melting routes

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materials science and Technology (United Kingdom) 2024年第17期40卷 1268-1284页

作者： Kumar, Vikesh Kumbhar, Nilesh K. Joshi, Manoj D. Ma, Yuan-Ron Singh, Indrasen Hosmani, Santosh S. Department of Metallurgical Engineering and Materials Science Indian Institute of Technology Indore Indore India Department of Mechanical Engineering Marathwada Mitra Mandal's College of Engineering Pune India Department of Physics National Dong Hwa University Hualien Taiwan Department of Mechanical Engineering Indian Institute of Technology Indore Indore India

This study thoroughly examines the influence of conventional and selective laser melting (SLM) routes and surface mechanical attrition treatment (SMAT) on the microstructural and electrochemical properties of 316L steel. Compared to wrought specimens, the SLM specimens exhibit significantly smaller grains (∼41 vs. ∼83 µm) and higher dislocation density (∼7.2 × 1013 vs. ∼3.7 × 1012 m−2). Both specimens show nearly doubled surface hardness after SMAT, with the SLM surface displaying a ∼30 nm grain size and minimal α’ phase. The microstructure significantly influences passivation and corrosion behaviour. The SLM specimens exhibit superior electrochemical characteristics to wrought counterparts in SMATed (0.00299 mmpy) and non-SMATed (0.00771 mmpy) conditions. SMAT effectively eliminates surface porosity, enhancing the passivation and corrosion resistance of SLM steel. © The Author(s) 2024.

关键词： X ray photoelectron spectroscopy

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