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A review of recent research on bionic structural characteristics and performance mechanisms of biomimetic materials

Composites Part B: Engineering 2025年 304卷

作者： Haipeng, Wang Shaomin, Li Qijie, Zhou Haichun, Peng Xiaolin, Liu Zhenyu, Shao Peng, Song Key Laboratory of High-efficiency and Clean Mechanical Manufacture of MOE School of Mechanical Engineering Shandong University Jinan250061 China Institute of Aerospace Special Materials and Processing Technology HIWING Technology Academy of CASIC Beijing100074 China State Key Laboratory of Advanced Equipment and Technology for Metal Forming Shandong University Jinan250061 China Institute of Bionic and Micro-Nano Systems Beihang University Beijing100191 China Aerospace Times Feihong Technology Company Limited Beijing100094 China

Lightweight structures with high energy absorption (EA) performance are of great significance in many crucial fields. Biomimetic structural design has demonstrated an effective strategy to improve the performance of both materials and structures by incorporating the unique structural characteristics of natural organisms. This review paper provides an in-depth and comprehensive overview of some important advances in structural design to obtain novel bio-inspired structures with improved energy absorption properties. The structural designs are categorized and summarized based on the common characteristics of biomimetic structures and their bio-inspired sources, and detailedly introduced in terms of the structural configurations, manufacturing processes, analysis methods and energy absorption properties as well as the comparative analysis of performance indicators. Moreover, the application investigations of biomimetic lightweight structures across diverse engineering domains are explored. The introduction of biomimetic structural characteristics indeed significantly improved the structural energy absorption performance and crashworthiness while maintaining the similar overall weight. This phenomenon drives many researchers to devote themselves to this investigations, and continuously achieve new research results. Meanwhile, the endless variety of biological species in nature provides inexhaustible sources for biomimetic structural designs. However, most of these investigations stop at laboratory and are difficult to achieve actual applications due to their various limitations such as manufacturing processes, serviceability in specific environments, the cost of innovative materials and production, product maturity, and the feasibility and cost of mass production. In short, the biomimetic lightweight structures present great potential and broad application prospects, but there are still many challenges to the practical applications. © 2025 Elsevier Ltd

关键词： Structural dynamics

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Achieving Wideband Electromagnetic Wave Absorbing Performance for Pmma-Based Composites Foam by Designing the Alternating Directional (Ad) Microporous Structure

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SSRN 2023年

作者： Zhou, Danfeng Yu, Zirui Yuan, Huan Luo, Guoqiang Hu, Ruofei Jiang, Xueliang Shen, Qiang Hubei Key Laboratory of Plasma Chemistry and New Materials School of Material Science and Engineering Wuhan Institute of Technology Hubei Wuhan430205 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China School of Automotive Engineering Wuhan University of Technology Wuhan430070 China Department of Food Science & Chemical Engineering Hubei University of Arts and Science Xiangyang441053 China

Good impedance matching and attenuation ability of electromagnetic wave absorbing (EMA) materials are required to broaden the effective absorbing bandwidth (EAB) and lower minimum reflection loss (RLmin), achieving high EMA performance. Here we report a PMMA- based composite foam with alternating and directional (AD) microporous structure with broadened EAB of 3.53 GHz (8.49-12.02 GHz) and lowers RLmin of -19.35 dB, was manufactured via the one-step physical constraint foaming technology. Structural studies reveal that the AD microporous structure can induce the CNTs oriented distribution to improve effective concentration of CNTs, achieving excellent impedance matching. Meanwhile, it can also generate a large number of parallel-plate capacitors among the multiple interfaces to promote interfacial polarization, including enhancement of multiple reflection and scattering of electromagnetic wave at the multiple interfaces, endowing composites foam with high attenuation ability. This study lays the foundation for rational design and synthesis of EMA materials for broadband EMA performance. © 2023, The Authors. All rights reserved.

关键词： Electromagnetic wave absorption

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Lotus stem-inspired directional channel structured graphene oxide/collagen composite aerogels with high capillary effect for the adsorption of methylene blue dye

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International Journal of Biological Macromolecules 2025年 319卷

作者： Chengfei Yue Shuqi Tang Min Hu Md. Zahid Hasan Lei Luo Guangming Cai Ruquan Zhang Bowen Cheng State Key Laboratory of New Textile Materials and Advanced Processing Technologies School of Textile Science and Engineering Wuhan Textile University Wuhan 430200 China Hubei Integrative Technology and Innovation Center for Advanced Fiberous Materials Wuhan 430200 China Tianjin Key Laboratory of Pulp and Paper Tianjin University of Science & Technology Tianjin 300457 China

Frequent water pollutants caused by organic dyes in the textile industry pose a serious threat to ecosystems, and there is a high demand for rapid cleanup and degradation of these pollutants. Inspired by the structure of the natural lotus stem and the self-assembly behavior of collagen (COL), we designed a composite aerogel with rapid organic dye adsorption driven by the capillary effect. Briefly, COL molecules were rapidly in situ self-assembled on the graphene oxide (GO) surface through a simple pretreatment process, aiming to achieve strong interfacial interactions between COL fibrils and GO. Then, the unidirectional freeze-drying technology was used to prepare GO/COL composite aerogels with directional channels for rapid dye adsorption. The resulting GO/COL composite aerogels achieved significantly increased structural stability under the synergistic effect of strong interfacial interactions and directional channel structure, which can not only obviously enhance the mechanical properties of GO/COL composite aerogels, but also endow them with a capillary effect, making them have an encouraging dye adsorption effect. This work provides a new type of GO composite aerogel based on the self-assembly behavior of COL, which has the advantages of high structural stability, environmental friendliness, strong adsorption capacity, and is a promising dye adsorbent in the textile industry.

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Microstructure and Magnetic Properties of Novel High-Entropy Perovskite Ceramics (Gd0.2la0.2nd0.2sm0.2y0.2)Mno3 with A-Site Short-Range Disorder

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SSRN 2023年

作者： Qin, Jiedong Wen, Zhiqin Ma, Bo Wu, Zhenyu Lv, Yunming Yu, Junjie Zhao, Yuhong Key Laboratory of New Processing Technology for Nonferrous Metals & Materials Ministry of Education Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources School of Materials Science and Engineering Guilin University of Technology Guilin541004 China Beijing Advanced Innovation Center for Materials Genome Engineering China

Rare earth-based high-entropy perovskite ceramics (HEPCs) (Gd0.2La0.2Nd0.2Sm0.2Y0.2)MnO3 (GLNSYMnO3) were prepared by using a solid-state reaction method, and the structure, morphology and magnetic properties of the HEPCs were studied. SEM and TEM analysis elucidates that the powder samples have a single orthorhombic (Pbnm Space group) perovskite phase without impurities. The grain size of the samples increases with increasing sintering temperature, the as-calcined powder is composed of irregular particles, and all of them demonstrate more obvious aggregation between the grains. The weaker magnetic interactions between rare earth elements and transition metal elements can explain the relatively low TC. Magnetic measurements yield a coercivity Hc is 0.050kOe in the samples, and Ms is approximately 38.72 emu/g at 2 K. This study contributes to magnetic properties research in HEPCs. © 2023, The Authors. All rights reserved.

关键词： Microstructure

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Strategy for Co-Enhancement of Strength-Corrosion Resistance of Cu-7ni-3al-1fe-1mn Alloy: Rare Earth Sm Microalloying

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SSRN 2023年

作者： Han, Qiuli An, Shizhong Song, Kexing Liu, Haitao Zhou, Yanjun Huang, Tao Cheng, Chu Zhang, Yanmin School of Materials Science and Engineering Henan University of Science and Technology Luoyang471000 China Henan Academy of Sciences Zhengzhou450002 China Henan Key Laboratory of Non-Ferrous Materials Science & Processing Technology Luoyang471000 China Provincial and Ministerial Co-Construction of Collaborative Innovation Center for Non-Ferrous Metal New Materials and Advanced Processing Technology Luoyang471000 China Longmen Laboratory Luoyang471000 China

We discover that the strength and corrosion resistance of Cu-7Ni-3Al-1Fe-1Mn alloy can be enhanced via rare earth Sm microalloying. When Sm content is 0.01 wt.%, the alloy exhibits not only the maximum tensile strength, which is 6% higher than the Sm-free alloy but also the lowest corrosion rate, which is 40% lower than the Sm-free alloy. Further analysis indicates that the increased strength can be mainly attributed to grain refinement and the formation of Sm-S precipitations. The improvement of corrosion resistance is primarily due to the formation of Cu-Sm precipitates, leading to a positive shift of the corrosion potential. © 2023, The Authors. All rights reserved.

关键词： Corrosion resistance

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Influence of Fe substitution at Al-site on the microstructure and thermophysical properties of garnet-type (Y0.4Er0.6)3Al5O12 ceramics

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Ceramics International 2025年第18期51卷 26338-26347页

作者： Wang, Xuanli Wang, Jun Xie, Min Wang, Zhigang Zhang, Yonghe Song, Xiwen School of Materials Science and Engineering Inner Mongolia University of Science and Technology Baotou014010 China Inner Mongolia Key Laboratory of Advanced Ceramic Material and Devices Baotou014010 China Ministry of Education Baotou014010 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China Inner Mongolia North Heavy Industry Group Co. Ltd. Baotou014010 China Department of Chemical Engineering Ordos Vocational College Ordos017000 China

In this study, a series of (Y0.4Er0.6)3(Al1-xFex)5O12 (x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0) ceramics were prepared by solid phase synthesis. The effects of Fe doping on the phase structure, lattice occupancy, Raman shift, ionic valence state, micromorphology and thermophysical properties of the ceramics were systematically investigated. The results show that all the (Y0.4Er0.6)3(Al1-xFex)5O12 ceramics exhibit a single Y3Al5O12 phase and the valence state of iron is +3. With the increase of Fe doping concentration, both the lattice constant and cell volume gradually expand, which is attributed to the substitution of Al3+ (smaller ionic radius) by Fe3+ (larger ionic radius). This substitution induces lattice distortion that accelerates the sintering process, resulting in an increase in both ceramic density and grain size. In terms of thermophysical properties, significant improvements were observed compared to pure Y3Al5O12 and (Y0.4Er0.6)3Al5O12 ceramics. Specifically, thermal conductivity decreases, and the thermal expansion coefficient increases with higher Fe doping levels. The (Y0.4Er0.6)3(Al0.2Fe0.8)5O12 ceramic exhibits the lowest thermal conductivity (1.31 W/m·K at 1100 °C), approximately 11.5 % lower than that of (Y0.4Er0.6)3Al5O12 (1.48 W/m·K at 1100 °C). Additionally, (Y0.4Er0.6)3Fe5O12 ceramic demonstrates the highest coefficient of thermal expansion (11 × 10−6 K−1 at 1200 °C), which is around 36.3 % greater than that of (Y0.4Er0.6)3Al5O12 (8.07 × 10−6 K−1 at 1200 °C). © 2025

关键词： Sintering

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One-Step Coaxial Spinning of Core-Sheath Hydrogel Fibers for Stretchable Ionic Strain Sensors

SSRN

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SSRN 2022年

作者： Wu, Hui Wang, Lin Lou, Hengyi Wan, Junmin Pu, Xiong National Engineering Lab of Textile Fiber Materials & Processing Technology Zhejiang Sci-Tech University Hangzhou310018 China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing101400 China Key Laboratory of Advanced Textile Materials and Manufacturing Technology

High-strength, highly conductive, and stretchable conductive fibers are essential for the development of flexible electronic devices. Here, we develop a continuous coaxial wet-spinning method to fabricate stretchable, conductive, and freeze-resistant hydrogel fibers with a core-sheath structure. The core is a supramolecular hydrogel, poly (APhe-AAm) (PAA), obtained by radical polymerization of acrylamide (AAm) and acryloyl-L-phenylalanine (APhe), and the sheath consists of PVDF-HFP and PU with hydrochloric acid as the coagulation bath. The hydrogel fibers exhibit excellent mechanical properties with a tensile strength of 3.1 MPa and elongation at a break of 750% due to the abundant multi-hydrogen bonding interactions. Hydrochloric acid plays two roles in this system: one is to promote hydrogen bond formation and improves mechanical properties, and the other is to provide plentiful ions to confer excellent electrical conductivity (10.59 S m-1) and freezing resistance (-20 oC). The application of fiber strain sensors for detecting human motion and pressure sensing demonstrates great potential as wearable electronic devices. © 2022, The Authors. All rights reserved.

关键词： Temperature

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Strain manipulation of ferroelectric skyrmion bubbles in a freestanding PbTiO3 film: A phase field simulation

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Physical Review B 2022年第22期105卷 224101-224101页

作者： Yixuan Zhang Qian Li Houbing Huang Jiawang Hong Xueyun Wang School of Aerospace Engineering Beijing Institute of Technology Beijing 100081 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing 100084 China Advanced Research Institute of Multidisciplinary Science Beijing Institute of Technology Beijing 100081 China

So far nanoscale topological polar structures have been mainly observed in ferroelectric superlattices, nanodots, and complex heterostructures, originating from the intricate interplay of built-in electric field, polarization, strain, and their gradient-related energies. However, solid substrates hinder the continuous strain manipulation of the ferroelectric topological textures. Recently, a breakthrough in fabricating freestanding films has demonstrated the possibility of continuous strain manipulation, but there has been little experimental or theoretical investigation of whether polar topological structures exist in freestanding films. Herein, by performing phase field simulation on (PbTiO3)20/(SrTiO3)10 freestanding bilayers, we observed the stabilized ferroelectric skyrmion bubbles in a ferroelectric layer. A thickness-dependent phase diagram indicates that the skyrmion bubbles exist when the ferroelectric layer is between eight and 30 unit cells. Meanwhile, we demonstrated that the uniaxial strain is an effective way to manipulate the skyrmion bubble in freestanding films, which not only induces consolidation and rearrangement of skyrmion bubbles, but also induces a phase transition from the topological skyrmion bubble state to a standard a1/a2 domain state. These results provide us guidance with a mechanical approach to control topological polar structures in freestanding films.

关键词： Electric polarization Ferroelectric domains Phase-field modeling

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Saxs "Unveils" Porous Anodes for Potassium-Ion Batteries: Dynamic Evolution of Pore Structure in Fe@Fe 2 O 3 /Pcnfs Composite Nanofibers

SSRN

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SSRN 2023年

作者： Shi, Haiting Jinxi, Bao Xianyan, Wu Feng, Tian Shuaitong, Liang Shao, Ruiqi Jingjing, Shi Yingjie, Dong Xu, Zhiwei State Key Laboratory of Separation Membranes and Membrane Processes School of Textile Science and Engineering Tiangong University Tianjin300387 China College of Materials and Textile Engineering Nanotechnology Research Institute Jiaxing University Jiaxing314001 China Shanghai Synchrotron Radiation Facility Zhangjiang Lab Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai201204 China International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhongyuan University of Technology Zhengzhou450007 China

The porous structure plays a key role in improving the electrochemical performance of composite nanofibers. However, the dynamic evolution of the pore structure and its action during the ion intercalation/extraction process for the negative electrode is not clear. Herein, porous carbon nanofibers composites (Fe@Fe2O3/PCNFs) were prepared as the negative electrode materials for sodium/potassium-ion batteries. Electrochemical test findings revealed that the composites had good electrochemical characteristics, and the porous structure provided more pseudo-capacitive behaviors for the composite electrodes. After 1500 discharge/charge cycles at a current density of 1000 mA g-1, the specific capacities of the potassium-ion and sodium-ion batteries were 144.8 mAh g-1 and 157.8 mAh g-1, respectively. We innovatively used the synchrotron small-angle X-ray scattering (SAXS) technique to systematically investigate the kinetic process of potassium formation in composites and showed that the kinetic process of potassium reaction in composites can be divided into four stages, and the pores with smaller average diameter distribution are more sensitive to the changes of the reaction process. This work provides a new way to study the deposition kinetics of sodium/potassium in porous materials, which facilitates the design of porous structures and realizes the development of alkali metal ion-anode materials with higher energies. © 2023, The Authors. All rights reserved.

关键词： Potassium

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Interface engineering of phase separation in SrRuO3/SrTiO3 hybrid superlattices

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Physical Review B 2022年第2期106卷 024424-024424页

作者： Zhangzhang Cui Yingying Zhang Xiaofang Zhai Hanghui Chen Yi-De Chuang Jinghua Guo Zhengping Fu Zhengcao Li Yalin Lu Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering University of Science and Technology of China Hefei Anhui 230026 China Anhui Laboratory of Advanced Photon Science and Technology University of Science and Technology of China Hefei Anhui 230026 China State Key Laboratory for New Ceramics and Fine Processing Key Laboratory of Advanced Materials of Ministry of Education School of Materials Science and Engineering Tsinghua University Beijing 100084 China School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China NYU-ECNU Institute of Physics NYU Shanghai Shanghai 200122 China Department of Physics New York University New York New York 10003 USA Advanced Light Source Lawrence Berkeley National Laboratory Berkeley California 94720 USA

Most observed phase separation phenomena in complex oxides occur in systems with chemical dopants or structural defects, and theories have established the strong connection between phase separation and the random distribution of chemical dopants. Recent experiments on fabricated high-quality oxide superlattices also confirmed that the phase separation is suppressed in the clean systems without chemical disorders. Thus far, phase separation in strongly correlated oxides without the need of chemical dopants or structural defects has not been fully demonstrated. Here, we have built chemically ordered hybrid superlattices using prototypical SrRuO3 and SrTiO3 perovskite oxides. Contrary to previous understandings, we observe phase separation of two magnetic phases with different spin easy axes. We elucidate this phenomenon through first-principles calculations that the hybrid superlattices have a spontaneous structural instability, leading to a coexistence of ferromagnetic and antiferromagnetic phases. Our findings provide an alternative pathway other than chemical doping to introduce phase separation in correlated oxides and imply that phase separation can exist in clean systems without the need of chemical disorders.

关键词： Magnetic anisotropy Magnetotransport Phase separation Complex oxides Superlattices

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