今日更新：Composite Structures 4 篇，Composites Part A: Applied Science and Manufacturing 3 篇，Composites Part B: Engineering 4 篇Composite StructuresEvolution of microstructure and mechanical properties of directional lamellar Ti3Si(Al)C2/Al composites via Al doping and electron beam melting infiltrationWenbo Du, Zhenqun Guo, Hailiang Deng, Zhengjun Yao, Cao Wu, Weihua Gu, Yanning Chen, Xuewei Tao, Xiangshan Kongdoi:10.1016/j.compstruct.2025.119403Al掺杂和电子束熔渗对Ti3Si(Al)C2/Al定向层状复合材料显微组织和力学性能的影响Directional lamellar Ti3Si(Al)C2/Al composites were fabricated by infiltration of molten Al in freeze casted Ti3Si(Al)C2 preforms. Infiltration by electron beam melting favored the breaking of oxide film on molten Al and reduction of the infiltration time (40 s) to control interface reactions. Doping Al in Ti3SiC2 preforms facilitated reactive wetting with Al matrix, which further halved the infiltration time and formed a compact interface. The composites consisted of Ti3Si(Al)C2, Al, TiAl3, and TiC, and in-situ formed TiAl3 improved the interface bonding. The internal diffusion of matrix Al led to TiAl3 formation along the lamellar direction, while the external diffusion of Ti damaged the lamellar structure of Ti3Si(Al)C2. Al doping promoted Ti3SiC2 decomposition and Ti external diffusion, causing a reduction of Ti3SiC2 volume fraction from 43 % to 15 % and tortuosity increase from 1.6 to 8.1. The composites fabricated via electron beam melting exhibited an average Young’s modulus of 95 GPa and hardness of 3.7 GPa, with these values increasing as the Al-doped content rose. While the maximum yield strength in compression of the composites, 370 MPa, was achieved at an Al doping content of 0.12, which was due to the contributions of the lamellar structure and TiAl3 formation.在冷冻铸造Ti3Si(Al)C2预铸坯中注入熔融Al，制备了Ti3Si(Al)C2/Al定向层状复合材料。电子束熔渗有利于铝液氧化膜的破裂，降低了渗渗时间（40 s），从而控制界面反应。在Ti3SiC2预成型中掺入Al有利于与Al基体的反应性润湿，使渗透时间进一步缩短一半，并形成致密的界面。复合材料由Ti3Si(Al)C2、Al、TiAl3和TiC组成，原位形成的TiAl3促进了界面结合。基体Al的内部扩散导致TiAl3沿片层方向形成，而基体Ti的外部扩散破坏了Ti3Si(Al)C2的片层结构。Al的掺入促进了Ti3SiC2的分解和Ti的外扩散，使Ti3SiC2的体积分数从43%降低到15%，扭曲度从1.6提高到8.1。通过电子束熔化制备的复合材料的杨氏模量为95 GPa，硬度为3.7 GPa，随着al掺杂量的增加，这些数值逐渐增加。 当Al掺杂量为0.12时，复合材料的最大屈服强度为370 MPa，这是由于层状结构和TiAl3的形成。Measuring the elastic constants of unidirectional CFRP laminate with time-of-flight inversion and template matching techniqueJuncen Wu, Yongfeng Song, Hongwei Hu, Zhanhong Zeng, Shuzeng Zhang, Xiongbing Lidoi:10.1016/j.compstruct.2025.119404用飞行时间反演和模板匹配技术测量单向CFRP复合材料的弹性常数The measurement of elastic constants in unidirectional carbon fiber reinforced polymers (CFRP) laminate is crucial for ensuring the desired material properties and for monitoring degradation during service. This study proposes a novel solution to the inverse problem of determining the elastic stiffness matrix. In contrast with the conventional methodology, which entails the extraction and classification of individual wave modes, the proposed method employs a more comprehensive strategy that utilizes overall time-of-flight (TOF) image matching between predicted data and recorded data. Based on the principles of wave propagation theory, the TOF inversion technique is proposed for the development of a prediction-based TOF template. Subsequently, the elastic stiffness matrix is reconstructed by aligning the predicted template with the collected experimental data through a template matching process. Simulations were conducted to validate the reliability of the proposed method and to evaluate the selection of the template. The experimental results agreed well with data obtained from immersion tests, which are widely accepted as a reliable measurement technique. Furthermore, the proposed method enables the reconstruction of the elastic constants using only the specimen’s thickness information. This work presents a promising in situ approach with less manual intervention and straightforward determination of all elastic constants.测量单向碳纤维增强聚合物（CFRP）层合板的弹性常数对于确保材料性能和监测使用过程中的退化至关重要。本文提出了一种求解弹性刚度矩阵逆问题的新方法。与传统方法（需要提取和分类单个波模式）相比，该方法采用了更全面的策略，利用预测数据和记录数据之间的总体飞行时间（TOF）图像匹配。基于波传播理论原理，提出了TOF反演技术，用于开发基于预测的TOF模板。然后，通过模板匹配处理，将预测模板与采集的实验数据对齐，重构弹性刚度矩阵。通过仿真验证了所提方法的可靠性，并对模板的选择进行了评价。实验结果与浸没试验数据吻合良好，是一种被广泛接受的可靠的测量技术。此外，所提出的方法能够仅使用试样的厚度信息重建弹性常数。这项工作提出了一种有前途的原位方法，减少了人工干预，并直接确定了所有弹性常数。Effect of high performance composite macrofiber on the shear behavior of reinforced beams without stirrupsChen Lin, Zhanchong Shi, Terje Kanstad, Guomin Jidoi:10.1016/j.compstruct.2025.119406高性能复合大纤维对无箍筋加筋梁抗剪性能的影响Although numerous studies have investigated the effectiveness of steel fibers as shear reinforcement in concrete structures. The present study investigates a novel high-performance composite macrofiber (HPCF) for shear reinforcement in reinforced beams, encouraging its use in construction. Three groups of longitudinally reinforced beams, lacking shear reinforcement but containing varying HPCF contents, were fabricated. A multi-method validation approach was adopted, including four-point bending test, nonlinear finite element (FE) modeling, and theoretical analysis based on current design codes. Full-field strain and crack evolution were monitored using Digital Image Correlation (DIC), enabling a detailed evaluation of crack initiation and width development. Results revealed that a relatively low fraction of HPCF significantly enhanced beam’s shear capacity. The validated FE models were further used to explore the influence of longitudinal (ρL ) and shear (ρV ) reinforcement ratios on the shear behavior of beams with HPCF. Finally, safety margins of using HPCF as only shear reinforcement were evaluated using theoretical models outlined in different design codes. Although formulated only for steel fibers, FprEC2:2022 is shown to perform well also for HPCF. Overall, the experimental, numerical and theoretical findings support the feasibility of using HPCF as a reliable alternative to traditional shear reinforcement in concrete beams.尽管大量的研究调查了钢纤维作为混凝土结构抗剪钢筋的有效性。本研究研究了一种新型高性能复合大纤维（HPCF）用于钢筋梁的剪切加固，鼓励其在建筑中的应用。制作了三组纵向加筋梁，这些梁缺乏抗剪钢筋，但含有不同的HPCF含量。采用四点弯曲试验、非线性有限元建模和基于现行设计规范的理论分析等多方法验证方法。利用数字图像相关技术（DIC）监测了全场应变和裂纹演化，从而能够详细评估裂纹的起裂和宽度的发展。结果表明，较低比例的HPCF显著提高了梁的抗剪能力。通过验证的有限元模型，进一步探讨了纵向配筋率（ρL）和剪切配筋率（ρV）对HPCF梁抗剪性能的影响。最后，利用不同设计规范中概述的理论模型，对仅使用HPCF作为抗剪钢筋的安全边际进行了评估。虽然FprEC2:2022仅适用于钢纤维，但它也适用于HPCF。总的来说，实验、数值和理论结果都支持在混凝土梁中使用HPCF作为传统剪力钢筋的可靠替代方案的可行性。High-precision machining of Cf/C-SiC ceramic matrix composites by innovative laser assisted ultrasonic grindingFangyong Niu, Zheng Li, Xintong Cai, Qihao Zhang, Liangliang Li, Jinbo Niu, Renke Kang, Zhigang Dong, Yan Bao, Dongjiang Wu, Guangyi Madoi:10.1016/j.compstruct.2025.119407 新型激光辅助超声磨削法加工Cf/C-SiC陶瓷基复合材料Ceramic matrix composites (CMCs) are increasingly adopted for thermal-end components in advanced aerospace systems. Laser assisted ultrasonic grinding (LAUG), a recently developed method, enables efficient and low-damage machining of CMCs, yet its influence on machining precision remains unclear. This study focuses on the comparison of conventional grinding (CG), ultrasonic assisted grinding (UAG), and LAUG machining of grooves in Cf/C-SiC composites. Results show that laser treatment generates a trapezoidal thin-wall array in Cf/C-SiC, softening the SiC matrix and 90° fiber bundles by 72.1 % and 34.3 %, respectively. The hardness difference is reduced by 76.7 %, mitigating material heterogeneity and enhancing machinability. Compared with CG, LAUG improves groove sidewall verticality, bottom surface parallelism, and dimensional precision by 53.7 %, 76.6 %, and 93.2 %, respectively. Additionally, LAUG reduces bottom surface roughness and corner rounding radius by 45.9 % and 37.2 %, while grinding force amplitude and range decrease by up to 64.8 % and 75.8 %. The reduced deviation between theoretical and actual grinding trajectories enhances machining precision significantly. This study demonstrates that LAUG achieves high-precision machining of CMCs components.陶瓷基复合材料越来越多地用于先进航空航天系统的热端部件。激光辅助超声磨削（LAUG）是近年来发展起来的一种高效、低损伤的复合材料加工方法，但其对加工精度的影响尚不清楚。研究了Cf/C-SiC复合材料沟槽的常规磨削（CG）、超声辅助磨削（UAG）和LAUG加工的比较。结果表明，激光处理在Cf/C-SiC中形成了一个梯形薄壁阵列，SiC基体和90°光纤束的软化程度分别为72.1 %和34.3 %。硬度差降低了76.7 %，减轻了材料的不均匀性，提高了可加工性。与CG相比，LAUG将槽壁垂直度、底面平行度和尺寸精度分别提高了53.7 %、76.6% %和93.2 %。此外，LAUG使底表面粗糙度和圆角半径分别降低45.9% %和37.2% %，磨削力幅度和范围分别降低64.8% %和75.8% %。理论与实际磨削轨迹偏差的减小，显著提高了加工精度。研究表明，LAUG可实现cnc零件的高精度加工。Composites Part A: Applied Science and ManufacturingA synergistic functionalization strategy for polycarbonate-based CFRTPs: enhanced adhesion and accelerated depolymerizationSooyeon Ryu, Young Nam Kim, Su-Bin Lee, Somi Yoon, Unseok Jung, Hunsu Lee, Seong Yun Kim, Yong Chae Jungdoi:10.1016/j.compositesa.2025.109125聚碳酸酯基CFRTPs的协同功能化策略：增强附着力和加速解聚Polycarbonate (PC) is a widely utilized engineering thermoplastic in automotive, aerospace, and electronic applications due to its exceptional toughness, transparency, thermal stability, and dimensional integrity. However, its high molecular weight and resultant viscosity hinder resin impregnation in composite manufacturing, and its non-biodegradability raises sustainability concerns. To address these limitations, we developed a dual-surface functionalization strategy for PC films by combining chemoselective amination and inductively coupled plasma (ICP) treatment. This approach introduced high-density amine groups both on the surface and within the bulk of PC films, enhancing their surface characteristics as evidenced by a 35 % reduction in contact angle, a 122 % increase in surface energy, and a 16 % increase in surface nitrogen content. These modifications resulted in a 53 % enhancement in interlaminar shear strength and more uniform resin impregnation with fewer voids in carbon fiber-reinforced thermoplastic composites (CFRTPs). Furthermore, the modified PC enabled rapid and selective depolymerization under mild conditions (80 °C, 12h), allowing for clean separation of matrix and carbon fibers with full retention of fiber integrity. This work demonstrates a scalable and sustainable route to high-performance CFRTPs by leveraging the intrinsic advantages of PC in conjunction with precise surface modification chemistry.聚碳酸酯（PC）是一种广泛应用于汽车、航空航天和电子应用的工程热塑性塑料，因为它具有卓越的韧性、透明度、热稳定性和尺寸完整性。然而，它的高分子量和由此产生的粘度阻碍了树脂在复合材料制造中的浸渍，而且它的不可生物降解性引起了可持续性问题。为了解决这些限制，我们通过结合化学选择性胺化和电感耦合等离子体（ICP）处理，开发了PC膜的双表面功能化策略。这种方法在PC薄膜的表面和内部都引入了高密度胺基团，增强了它们的表面特性，接触角降低了35% %，表面能增加了122 %，表面氮含量增加了16% %。这些改性使碳纤维增强热塑性复合材料（CFRTPs）的层间剪切强度提高了53. %，树脂浸渍更均匀，空隙更少。此外，改性PC在温和的条件下（80 °C, 12h）实现了快速和选择性的解聚，使基体和碳纤维能够干净地分离，同时充分保持纤维的完整性。这项工作通过利用PC的内在优势与精确的表面改性化学相结合，展示了一种可扩展和可持续的高性能cfrtp途径。Influence of sample size on permeability of carbon–carbon composites with stochastic microstructureT. Lavaggi, J.W. Gillespie, P.D. Mulye, C. Binetruy, S.G. Advanidoi:10.1016/j.compositesa.2025.109126样品尺寸对随机微观结构碳-碳复合材料渗透率的影响Permeability is one of the key parameters for the successful densification of carbon–carbon composites (CCC), as it governs the ability of the matrix precursor to infiltrate the porous carbonized structure. Unlike the case of traditional dry fiber preforms, such as continuous or woven textiles, which exhibit a periodic microstructure having a relatively small representative volume element (RVE), the microstructure of pyrolyzed CCC is far more complex. In CCC a periodic fabric architecture is combined with a matrix that is highly stochastic exhibiting a broad distribution of pore sizes and a network of interconnected transverse cracks within tows and delaminations between layers that extend beyond the fabric intrinsic RVE dimensions. For accurate permeability measurements, the size of a statistically homogenous RVE must be determined. In this study, a T800SC 12K 2 x 2 twill weave fabric (RVE size 25 mm2) with MT35700 benzoxazine resin is pyrolyzed to form CCC with 57 % fiber volume fraction and 20 % porosity measured in a previous study. The effect of the sample size on the effective permeability of the pore network developed during pyrolysis for cross-ply laminates having 5 and 33 layers is investigated. The results of experiments on samples of different in-plane dimensions, ranging from 400 to 2000 mm2, are compared to numerical simulations of permeability using 70 full-thickness high-resolution computed-tomography (CT) images, with in-plane dimensions of 1.80 by 1.97 mm2, as the statistical description of the geometry of the porous microstructure. Monte Carlo simulations are performed on numerical models of the 5 and 33 ply laminates of in-plane dimensions ranging from about 3.5 mm2 to 35000 mm2. This procedure is used to identify the minimum size of the statistical representative volume element (sRVE) of the CCC microstructure. For a coefficient of variation of 5 %, the size of the sRVE was determined to be 350 mm2 for the sample of 5 plies and 130 mm2 for the sample of 33 plies. In both cases the sRVE is significantly larger than the RVE of the twill weave. The predicted effective permeability on the sRVE is found to be in agreement with the experimental permeability.渗透率是碳-碳复合材料致密化的关键参数之一，它决定了基体前驱体渗透多孔碳化结构的能力。与传统的干纤维预成型（如连续或机织纺织品）不同，其表现出具有相对较小的代表性体积元（RVE）的周期性微观结构，热解CCC的微观结构要复杂得多。在CCC中，周期性织物结构与高度随机的矩阵相结合，显示出广泛的孔隙大小分布和在拖中相互连接的横向裂缝网络，以及超出织物固有RVE尺寸的层之间的分层。为了精确测量渗透率，必须确定统计上均匀的RVE的大小。 在本研究中，将T800SC 12K 2 x 2斜纹织物（RVE尺寸为25 mm2）与MT35700苯并嗪树脂进行热解，形成具有57 %纤维体积分数和20 %孔隙率的CCC。研究了样品尺寸对5层和33层交叉层合板热解过程中孔隙网络有效渗透率的影响。将不同面内尺寸（400 ~ 2000 mm2）样品的实验结果与70张全层高分辨率计算机断层扫描（CT）图像的渗透率数值模拟结果进行了比较，其中面内尺寸为1.80 × 1.97 mm2，作为多孔微观结构几何形状的统计描述。对5层和33层板的数值模型进行了蒙特卡罗模拟，其面内尺寸范围从约3.5 mm2到35000 mm2。该程序用于确定CCC微观结构的统计代表性体积元（sRVE）的最小尺寸。对于变异系数为5 %，确定5层样品的sRVE大小为350 mm2, 33层样品的sRVE大小为130 mm2。在这两种情况下，sRVE都明显大于斜纹织物的RVE。结果表明，预测的储层有效渗透率与实验渗透率基本一致。Swelling pretreatment to promote the degradation of epoxy composites and retention of carbon fiber propertiesTianxiang Fan, Xue Gu, Yanyan Guo, Bin Cao, Jing Xu, Fuyou Ke, Ye Chendoi:10.1016/j.compositesa.2025.109127 膨胀预处理促进环氧复合材料的降解和碳纤维性能的保留With the increasing demand for lightweight materials, carbon fiber reinforced epoxy composites have seen rapid growth, leading to significant waste management challenges. The highly cross-linked epoxy matrix limits degradation efficiency, but swelling pretreatment enhances diffusion, accelerating degradation. However, concerns remain regarding volatile solvents, solvent selection and the effects on recovered carbon fibers. In this study, N-methyl-2-pyrrolidone, optimized using Hansen Solubility Parameters, was employed for swelling pretreatment. The results demonstrated a threefold increase in degradation efficiency while preserving carbon fiber strength from 91.8% to 98.6%. Furthermore, interfacial properties improved, which is crucial for broadening the applications of recycled carbon fibers. These findings highlight the potential of swelling pretreatment in facilitating efficient composite recycling while maintaining properties of carbon fiber, offering a promising route for high-value reuse.随着对轻量化材料的需求不断增加，碳纤维增强环氧复合材料的快速增长，导致了重大的废物管理挑战。高度交联的环氧树脂基体限制了降解效率，但溶胀预处理增强了扩散，加速了降解。然而，对挥发性溶剂、溶剂选择和对回收碳纤维的影响的关注仍然存在。本研究采用Hansen溶解度参数优化的n -甲基-2-吡咯烷酮进行溶胀预处理。结果表明，在保持碳纤维强度从91.8%到98.6%的同时，降解效率提高了三倍。此外，界面性能得到改善，这对扩大再生碳纤维的应用至关重要。这些发现突出了膨胀预处理在促进复合材料高效回收的同时保持碳纤维性能的潜力，为高价值再利用提供了一条有前途的途径。Composites Part B: EngineeringNanonet encapsulating magnetic nanoparticles with double active layers and high structural stability on carbon fiber for composite interface enhancement and electromagnetic wave absorptionJinchuan Chen, Jiahao Sun, Huajie Xu, Feng Yang, Yujing Zhang, Ming Huang, Chuntai Liu, Changyu Shendoi:10.1016/j.compositesb.2025.112731 纳米网络在碳纤维表面封装具有双活性层和高结构稳定性的磁性纳米颗粒，用于复合界面增强和电磁波吸收The structural stability of carbon fiber (CF) surface modification is vital for carbon fiber reinforcement polymer composites with harsh processing environments. To achieve it, CF anchored with magnetic Fe3O4 nanoparticles is designed to be encapsulated with an in-situ synthesized MoS2@CNT-COOH nanonet (MCN). This encapsulation effectively prevents the shedding of Fe3O4 nanoparticles during composite processing and guarantee the interface and property stability of the composite. Additionally, this hierarchical structure comprises respective active oxidation layers and significantly boosts the interfacial compatibility and stress transfer between CF and Polyamide 6 (PA6) resin. Consequently, the tensile strength of MCN@Fe3O4-CF/PA6 composites is enhanced by 23.9% compared to those of untreated-CF/PA6 composites. The synergistic effect of the high MCN dielectric loss in the outer layer and the stable Fe3O4 magnetic loss layer in the inner layer improves the composite electromagnetic wave (EMW) impedance matching and attenuation ability. The results present a minimum reflection loss value of -65.3 dB at a thinner thickness of 1.6 mm and maximum effective absorption bandwidth reaches 6.76 GHz at a thickness of 1.8 mm. The composite radar cross-section values are less than -10 dBm2 at all tested detection angles. This CF surface modification method offers a novel and effective approach to manufacture high performance CF composite EMW absorbers with great stability.碳纤维表面改性的结构稳定性对加工环境恶劣的碳纤维增强聚合物复合材料至关重要。为了实现这一目标，CF锚定与磁性Fe3O4纳米颗粒被设计封装在原位合成MoS2@CNT-COOH纳米网络（MCN）中。这种封装有效地防止了复合材料加工过程中Fe3O4纳米颗粒的脱落，保证了复合材料的界面和性能稳定性。此外，这种分层结构由各自的活性氧化层组成，显著提高了CF和PA6树脂之间的界面相容性和应力传递。结果表明，MCN@Fe3O4-CF/PA6复合材料的抗拉强度比未经处理的cf /PA6复合材料提高了23.9%。外层高MCN介电损耗与内层稳定的Fe3O4磁损耗层的协同作用，提高了复合电磁波（EMW）的阻抗匹配和衰减能力。结果表明，在厚度较薄的1.6 mm处，反射损耗最小值为-65.3 dB；在厚度为1.8 mm处，有效吸收带宽最大值为6.76 GHz。在所有测试的探测角下，复合雷达截面值均小于-10 dBm2。这种CF表面改性方法为制备高性能、高稳定性的CF复合EMW吸波材料提供了一种新颖有效的方法。The effect of PTFE on the deformation behavior of PPS composites for high-pressure hydrogen applicationsAlexander Pöllinger, Julia Maurer, Sarah Heupl, Fabian Wilde, Domonkos Tolnai, Stefan Krenn, Klaus Gebhardt, Eleni Siakkou, Christoph Burgstaller, Vasiliki-Maria Archodoulaki, Michael Schöbeldoi:10.1016/j.compositesb.2025.112692聚四氟乙烯对高压氢气PPS复合材料变形行为的影响Efficient storage of hydrogen is crucial for the widespread adoption of renewable energy. Reciprocating piston compressors, featuring advanced sealing solutions, are essential to meet the stringent demands of non-lubricated hydrogen applications, ensuring gas purity and high pressure differentials. Polyphenylene sulfide polymer matrix composites exhibit high mechanical strength and low friction and wear, making them valuable in tribological applications. This study investigates carbon fiber reinforced polyphenylene sulfide modifications with different PTFE contents by employing advanced imaging techniques to assess the effect of dry-lubricant on properties with respect to application in high-pressure reciprocating compressors. Thermo-mechanical and tribological testing, along with microstructure analysis utilizing synchrotron tomography, presents the importance of dry lubricating PTFE additives. Furthermore, the research provides insights into the micromechanical deformation behavior of short fiber reinforced polymers and identifies promising compositions suitable for advanced hydrogen compression.有效的氢气储存对于可再生能源的广泛采用至关重要。往复式活塞压缩机具有先进的密封解决方案，对于满足非润滑氢气应用的严格要求至关重要，可以确保气体纯度和高压差。聚苯硫醚聚合物基复合材料具有高机械强度和低摩擦磨损的特点，在摩擦学领域具有重要的应用价值。本研究采用先进的成像技术，研究了不同PTFE含量的碳纤维增强聚苯硫醚改性，以评估干式润滑剂对高压往复式压缩机性能的影响。热机械和摩擦学测试，以及利用同步加速器断层扫描的微观结构分析，提出了干润滑PTFE添加剂的重要性。此外，该研究为短纤维增强聚合物的微观力学变形行为提供了见解，并确定了适合先进氢压缩的有前途的组合物。Geometric topology–driven purely resistive electrodes in hexagonally close-packed urchin-like hollow carbon sphere monolayers for flexible electronicsTianyu Zhu, Sai Zhang, Min Chen, Lan Shi, Limin Wudoi:10.1016/j.compositesb.2025.112730几何拓扑驱动的纯电阻电极在六边形紧密堆积的海胆状空心碳球单层柔性电子Periodic array–structured carbon materials have attracted considerable attention owing to their broad applications in heterogeneous catalysis, energy storage, photonics and sensors. However, they are typically assembled into multi-layer stacks that introduce complex internal interfaces, leading to carrier scattering and charge accumulation, thereby reducing electrical performance. Furthermore, structural changes under external force limit the applicability of multi-layer materials in flexible electronics. Herein, to effectively address these issues, a carbon microsphere film with geometric-topological design is introduced. A monolayer colloidal microsphere template is first prepared by the self-assembly technique, and the subsequent in situ growth yields an urchin-like hollow carbon sphere array film. It exhibits a stable 0° phase angle over a wide frequency range (1 Hz to 0.1 MHz) and demonstrates excellent linearity and symmetry in current–voltage behaviour, with no hysteresis of the electrical signal. It exhibits pure resistance behaviour and precision with variations of <0.025%. When made into a flexible pressure sensor, the sensor achieves a sensitivity of ≤408 kPa−1 and an ultrafast response time of 0.8 ms. In addition, it can enable individuals with limited experience to perform precise manual operations such as vein injection.周期性阵列结构碳材料因其在多相催化、储能、光子学和传感器等方面的广泛应用而受到广泛关注。然而，它们通常被组装成多层堆叠，引入复杂的内部界面，导致载流子散射和电荷积累，从而降低电气性能。此外，外力作用下的结构变化限制了多层材料在柔性电子器件中的应用。为了有效地解决这些问题，本文介绍了一种具有几何拓扑设计的碳微球膜。首先通过自组装技术制备单层胶体微球模板，随后原位生长产生海胆状中空碳球阵列薄膜。它在宽频率范围内（1hz至0.1 MHz）具有稳定的0°相角，并且在电流-电压行为中具有出色的线性和对称性，没有电信号的迟滞。它具有纯电阻行为和精度，变化<0.025%。制成柔性压力传感器，灵敏度≤408kpa−1，响应时间超快，达到0.8 ms。此外，它可以使经验有限的个人进行精确的手动操作，如静脉注射。Recycling Wind Turbine Blade to Fabricate 3D Framework for Ultra-robust Composite with Enhanced Electromagnetic Interference ShieldingDawei Luo, Fujie Wang, Liang Li, Yixuan Cao, Shuangqiao Yang, Qi Wangdoi:10.1016/j.compositesb.2025.112734 回收风力涡轮机叶片制造增强电磁干扰屏蔽的超鲁棒复合材料3D框架Electromagnetic interference (EMI) shielding composites with both thermal response, management functions and antibacterial properties are highly desirable for use in fields such as rail transit, and construction engineering. In this study, fine recycled wind turbine blades powder, obtained from a facile yet effective solid-state shearing milling (S3M) equipment, was deposited with Ag nanoparticles using polydopamine (PDA) as an intermediate layer via electroless plating. Comprehensive analyses confirm the synthesis of silver-plated powder (referred to as as WPA). Subsequently, epoxy and WPA mixture coating was developed to encapsulate glass fiber fabric (GFF) via vacuum-assisted resin transfer molding (VARTM) process. In this sandwich-like structure, GFF not only reinforces the composite but also serves as a filler barrier, enabling uniform filler distribution on its surface and forming a dense conductive network. Meanwhile, WPA enhance its interfacial interactions with epoxy resin through a mechanical interlocking structure, forming a robust framework that enables efficient stress transfer. GFF-reinforced EP/WPA laminate, with 3 GFF layers, achieves a tensile strength of ∼166.7 MPa and a tunable EMI shielding effectiveness of 48.2 to 68.6 dB depending on the number of GFF layers. Additionally, the laminate exhibits versatile usability, such as outstanding thermal management capability, performance stability, and good antibacterial performance.具有热响应、管理功能和抗菌性能的电磁干扰（EMI）屏蔽复合材料在轨道交通和建筑工程等领域非常受欢迎。在这项研究中，从一个简单而有效的固态剪切铣削（S3M）设备中获得的细再生风力涡轮机叶片粉末，以聚多巴胺（PDA）作为中间层，通过化学镀沉积银纳米粒子。综合分析证实了镀银粉（简称WPA）的合成。随后，通过真空辅助树脂转移成型（VARTM）工艺，开发了环氧树脂和WPA混合涂层来封装玻璃纤维织物（GFF）。在这种三明治状结构中，GFF不仅增强了复合材料，而且作为填料屏障，使填料均匀分布在其表面，形成致密的导电网络。同时，WPA通过机械联锁结构增强了与环氧树脂的界面相互作用，形成了一个坚固的框架，实现了有效的应力传递。GFF增强EP/WPA层叠板具有3个GFF层，其抗拉强度为~ 166.7 MPa，根据GFF层数的不同，其EMI屏蔽效率可调为48.2至68.6 dB。此外，层压板具有多种可用性，如出色的热管理能力，性能稳定性和良好的抗菌性能。来源：复合材料力学仿真Composites FEM
