今日更新：Composite Structures 1 篇，Composites Part A: Applied Science and Manufacturing 6 篇，Composites Part B: Engineering 6 篇Composite StructuresNonlinear numerical simulation of plasticity, thermal and creep in particle-reinforced composites with a new three-dimensional VCFEMChun Li, Ran Guodoi:10.1016/j.compstruct.2025.119263基于新型三维VCFEM的颗粒增强复合材料塑性、热和蠕变非线性数值模拟This paper proposes a new three-dimensional Voronoi-cell finite element method (3D VCFEM), which incorporates plastic, thermal and creep strains, for the numerical simulation of particle-reinforced composites (PRCs). Firstly, the 3D VCFEM stress function, which contains interaction stress terms, is developed by improving the constitutive relation and nonlinear G-matrix of the complementary energy functional in 3D VCFEM, this results in the creation of a new 3D nonlinear complementary energy functional. Secondly, a comparison is conducted between the calculation results obtained from 3D VCFEM and ABAQUS in order to verify the validity and accuracy of the 3D VCFEM. In comparison to the finite element method, the 3D VCFEM exhibits superior capabilities in terms of adaptability and efficiency. Subsequently, the potential of the 3D VCFEM in simulating real materials with randomly distributed tremendous amounts of particles is demonstrated by an example of multi-inclusion PRCs with arbitrary element and integral domains. Finally, the impact of the stress function on the 3D VCFEM stress field is examined.本文提出了一种将塑性应变、热应变和蠕变应变结合起来的三维Voronoi-cell有限元方法（3D VCFEM），用于颗粒增强复合材料（prc）的数值模拟。首先，通过改进三维VCFEM中互补能量泛函的本构关系和非线性g矩阵，建立了包含相互作用应力项的三维VCFEM应力函数，从而建立了新的三维非线性互补能量泛函；其次，将三维VCFEM计算结果与ABAQUS计算结果进行对比，验证三维VCFEM的有效性和准确性。与有限元方法相比，三维VCFEM在适应性和效率方面表现出更强的能力。随后，通过具有任意单元和积分域的多包体prc实例，证明了三维VCFEM在模拟具有随机分布的大量粒子的真实材料方面的潜力。最后，分析了应力函数对三维VCFEM应力场的影响。Composites Part A: Applied Science and ManufacturingLaser powder bed fusion of high-performance carbon fiber reinforced PEEK composites: Process design and orthotropic behavior analysisHaibin Tang, Yingjie Yang, Shuxiang Zhang, Zhangxing Chen, Tingting Liudoi:10.1016/j.compositesa.2025.109013高性能碳纤维增强PEEK复合材料的激光粉末床熔合：工艺设计及正交异性行为分析Poly-ether-ether-ketone (PEEK) and PEEK-based composites are emerging as key materials in laser powder bed fusion (LPBF) techniques fabricated via selective laser sintering (SLS). In the current work, the process parameters and scanning strategies for LPBF of carbon fiber reinforced PEEK composites (LPBF-CF/PEEK) with a fiber weight fraction of 20 % are studied. The effect of nano-scale SiO2 flow agent content on the powder flowability and the mechanical property of LPBF-CF/PEEK composites is analyzed. Using optimal process parameters, LPBF-CF/PEEK composites with the ultimate tensile strength of 142 MPa and modulus of 11.3 GPa are successfully 3D printed. Further, the orthotropic behaviors of LPBF-CF/PEEK composites are evaluated. Uniaxial tension, compression, and pure shear tests are conducted along three principal directions, i.e., the powder spreading direction, transverse direction, and building direction for LPBF-CF/PEEK composites. Excellent mechanical performance is observed along all loading conditions, except for the tension in the building direction. A macro-scale constitutive model, combining the Liu-Huang-Stout yield criterion and the associated flow rule, is developed to characterize the elastoplastic behaviors of LPBF-CF/PEEK composites. The model is calibrated using the uniaxial loading data of LPBF-CF/PEEK composites, and validated with the LPBF-CF/PEEK structures featuring triply periodic minimal surface (TPMS).聚醚醚酮（PEEK）及其基复合材料是选择性激光烧结（SLS）制备激光粉末床熔合（LPBF）技术的关键材料。本文研究了纤维质量分数为20 %的碳纤维增强PEEK复合材料（LPBF- cf /PEEK）的LPBF的工艺参数和扫描策略。分析了纳米级SiO2流动剂含量对LPBF-CF/PEEK复合材料粉末流动性和力学性能的影响。通过优化工艺参数，成功打印出了抗拉强度为142 MPa、模量为11.3 GPa的LPBF-CF/PEEK复合材料。进一步，评价了LPBF-CF/PEEK复合材料的正交各向异性行为。对LPBF-CF/PEEK复合材料沿粉末扩散方向、横向方向和构建方向进行单轴拉伸、压缩和纯剪切试验。除了建筑方向的张力外，在所有加载条件下均观察到优异的机械性能。结合Liu-Huang-Stout屈服准则和相关流动规律，建立了表征LPBF-CF/PEEK复合材料弹塑性行为的宏观本构模型。该模型使用LPBF-CF/PEEK复合材料的单轴载荷数据进行校准，并使用具有三周期最小表面（TPMS）的LPBF-CF/PEEK结构进行验证。Poly(butylene adipate-co-terephthalate) as a new healing agent for epoxy/basalt compositesLaura Simonini, Daniele Rigotti, Jeevan Kishore Reddy Pidapa, Alessandro Pegorettidoi:10.1016/j.compositesa.2025.109010聚己二酸丁二酯是一种新型的环氧/玄武岩复合材料的愈合剂The aim of this work was to demonstrate that interfacial healing in epoxy/basalt composites can be achieved by coating basalt fibres with thermoplastic polymer poly(butylene adipate-co-terephthalate) (PBAT). As a reference healing agent, the widely studied polycaprolactone (PCL) was also used to coat the basalt fibres. The two polymers were applied by fluid coating from polymer solutions at different coating speeds. Scanning electron microscopy revealed smooth and high quality coatings for both polymers at low coating speeds. At higher coating speeds (>20 mm/s), PCL behaved like a Newtonian fluid, forming droplet-like structures. PBAT, on the other hand, behaved like a non-Newtonian shear-thinning fluid, forming droplets at speeds above 80 mm/s. Contact angle measurements showed a significant reduction in contact angle hysteresis (θH) for fibers coated with both polymers compared to uncoated, with PBAT exhibiting the lowest θH and a smoother surface. The coated fibers were then combined with an epoxy matrix to form microcomposites and tested in a microdebonding configuration to measure the interfacial shear strength (IFSS). Moreover, the fiber/matrix interface was healed by a 30 min thermal treatment at 80 °C for PCL and at 120 °C for PBAT and healing efficiency (HE) parameter was evaluated by repeating the microdebonding test. With the new PBAT coating HE values up to 89.5 % were obtained, very similar to the HE values of up to 93.8 % achieved with the reference PCL coating. In conclusion, PBAT coating resulted to be a promising alternative candidate to PCL to reach interfacial healing in basalt fibers reinforced epoxy composites.这项工作的目的是证明在玄武岩纤维上涂覆热塑性聚合物聚己二酸丁二酯（PBAT）可以实现环氧/玄武岩复合材料的界面愈合。作为参考愈合剂，广泛研究的聚己内酯（PCL）也被用于涂覆玄武岩纤维。将两种聚合物以不同的涂覆速度从聚合物溶液中进行流体涂覆。扫描电镜显示，在低涂层速度下，这两种聚合物的涂层光滑且质量高。在较高的涂层速度下（bbb20 mm/s）， PCL表现得像牛顿流体，形成液滴状结构。另一方面，PBAT表现得像一种非牛顿剪切变薄流体，在80 mm/s以上的速度下形成液滴。接触角测量显示，与未涂覆的纤维相比，涂覆两种聚合物的纤维接触角滞后（θH）显著降低，PBAT表现出最低的θH和更光滑的表面。然后将涂层纤维与环氧基结合形成微复合材料，并在微剥离配置下进行测试，以测量界面剪切强度（IFSS）。此外，对PCL和PBAT分别在80 °C和120 °C下进行30 min的热处理，并通过重复微脱粘测试来评估纤维/基体界面的愈合效率（HE）参数。新PBAT涂层的HE值高达89.5 %，与参考PCL涂层的HE值高达93.8 %非常相似。综上所述，PBAT涂层在玄武岩纤维增强环氧复合材料中实现界面愈合是一种有希望的替代PCL涂层。Microstructure regulatable PbWO4 fillers reinforced B4C/HDPE composites for synergistic radiation shielding of neutron and gamma-rayZhipeng Huo, Zuoyang Chen, Yidong Lu, Guoqiang Zhongdoi:10.1016/j.compositesa.2025.109011 微结构可调的PbWO4填料增强B4C/HDPE复合材料对中子和伽马射线的协同辐射屏蔽PbWO4/B4C/HDPE composites doped with synthesized regular-shaped PbWO4 fillers with different microstructures are prepared to shield neutron and gamma-ray. The effect of filler morphology on various properties of the composites is detailed investigated. X-ray Diffraction (XRD) and Scanning Electron Microscope (SEM) reveal that different crystallinity and crystal growth priority of the crystal planes of PbWO4 generate different microstructures. SEM and Brunauer-Emmett-Teller (BET) specific surface area test reveal that the rough micron spherical PbWO4-III fillers exhibit significantly larger specific surface area (S BET = 9.99 m2/g) than others due to its significantly rougher surface containing abundant secondary granular structures. The PbWO4-III/B4C/HDPE composite exhibits the best melting temperatures (T p = 133.8 °C) and mechanical properties due to its increased thermal restriction sites and interfacial compatibility between fillers and matrix caused by the high S BET and homogeneous particle size of PbWO4-III fillers. The accelerated ultraviolet ageing test reveals that PbWO4 reinforced composites exhibit excellent anti-ultraviolet ageing properties. The PbWO4/B4C/HDPE composites exhibit significant enhancements of radiation shielding performance due to the synergistic shielding effect caused by PbWO4, B4C and HDPE. The superior PbWO4-III/B4C/HDPE composite exhibits the best total neutron cross-section (Σ = 0.224 cm−1) and linear attenuation coefficient (μ = 0.107 cm−1) due to the increased probability of interaction between the composite and radiation particles rendered by the superior S BET and dispersion of PbWO4-III fillers.采用合成的不同微结构的规则形状PbWO4填料，制备了屏蔽中子和γ射线的PbWO4/B4C/HDPE复合材料。详细研究了填料形态对复合材料各项性能的影响。x射线衍射（XRD）和扫描电镜（SEM）分析表明，不同结晶度和晶体生长优先级的PbWO4晶面产生了不同的微观结构。SEM和BET比表面积测试结果表明，粗糙微米级球形PbWO4-III填料的比表面积显著增大(S BET = 9.99 m2/g)，由于其表面明显粗糙，含有丰富的二次颗粒结构。PbWO4-III/B4C/HDPE复合材料表现出最佳熔融温度(T p = 133.8 °C)和机械性能，这是由于高S引起的热限制位点增加和填料与基体之间的界面相容性 PbWO4-III填料的BET和均匀粒径。紫外加速老化试验表明，PbWO4增强复合材料具有优异的抗紫外老化性能。由于PbWO4、B4C和HDPE的协同屏蔽作用，PbWO4/B4C/HDPE复合材料的辐射屏蔽性能显著增强。优异的PbWO4-III/B4C/HDPE复合材料表现出最佳的总中子截面（Σ = 0.224 cm−1）和线性衰减系数（μ = 0.107 cm−1），这是由于优异的S增强了复合材料与辐射粒子相互作用的概率 PbWO4-III填料的BET和分散性。Regulating the electro-dielectric architectures of carbon black-engineered polyester fibers and fabrics for strain sensing and microwave absorptionShuang Gao, Xiang Li, Mingwei Tu, Jie Huang, Xiaoming Qi, Yaqin Fudoi:10.1016/j.compositesa.2025.109015 调节炭黑工程聚酯纤维和织物的电介质结构，用于应变传感和微波吸收With the advent of next-generation high-frequency wireless electronic sensors, signal interference between sensors become severe. Integrating the sensor and microwave absorber is highly needed, but challenges remain in a single-component material due to the contradiction between electrical conductivity and dielectric properties. Here, a one-step surface sizing of polyester fibers (PET) and coating of carbon black (CB) using styrene-acrylic emulsion (SAE) as sizing regent was proposed to produce multifunctional fibers (PET-SAE/C) continuously. This approach endows the fibers with balanced electrical conductivity and dielectric properties, making them a promising material for strain sensors and microwave absorbers. The obtained PET-SAE/C fibers exhibit remarkable sensitivity to the resistance changes over 1000 cycles of strain-sensing treatment. Simultaneously, the PET-SAE/C fibers had strong microwave absorption properties with a minimum reflection loss (RLmin ) of −67.82 dB at a predicted thickness of 2.28 mm. The fibers were successfully weaved into 3D fabrics, which retained outstanding strain sensing and microwave absorption performance, the RLmin approached −62.87 dB at the thickness of 2.28 mm. This study provides insights into creating flexible, efficient, and multifunctional fiber and fabric materials for integrating strain sensors and microwave absorbers in versatile wireless electronics.随着下一代高频无线电子传感器的出现，传感器之间的信号干扰变得越来越严重。集成传感器和微波吸收体是非常必要的，但由于电导率和介电性能之间的矛盾，单组分材料仍然存在挑战。本文提出了以苯乙烯-丙烯酸乳液（SAE）为施胶剂对聚酯纤维（PET）和炭黑（CB）涂层进行一步表面施胶的方法，以连续生产多功能纤维（PET-SAE/C）。这种方法使纤维具有平衡的导电性和介电性能，使其成为应变传感器和微波吸收器的有前途的材料。得到的PET-SAE/C纤维对1000次应变传感处理后的电阻变化表现出显著的敏感性。同时，PET-SAE/C纤维具有较强的微波吸收性能和最小的反射损耗（RLmin）为−67.82 dB，预测厚度为2.28 mm。这些纤维成功地编织成3D织物，保留了出色的应变传感和微波吸收性能 厚度为2.28 mm，接近−62.87 dB。该研究为在多功能无线电子产品中集成应变传感器和微波吸收器的柔性、高效和多功能纤维和织物材料提供了见解。A novel phosphinate-decorated montmorillonite nano-micro hybrid for enhanced flame retardancy and mechanical properties of epoxy resinShu-Gen Wu, Chuan Liu, Zhen Qin, Dong-Yi He, Wen-Long Xie, Ze-Kun Wang, Yu-Zhong Wang, Li Chendoi:10.1016/j.compositesa.2025.109016 一种新型磷酸盐修饰蒙脱土纳米微杂化物，用于增强环氧树脂的阻燃性和力学性能There is a pressing need to develop epoxy resin (EP) composites that can achieve a harmonious balance between safety performance (fire resistance) and service performance (including mechanical, thermal, and dielectric properties). To address the challenge for balanced safety concerns (fire safety in particular) and service performance in EP composites, a novel organic–inorganic hybrid flame retardant, named OMMT@BIEPA-Al, was designed and prepared through an in-situ growth of aluminum alkylphosphinate with reactive benzimidazole groups on organic-modified montmorillonite (OMMT), enhancing its dispersion in EP. At 5 wt% loading, the EP composite achieves the UL-94 V-0 rating with a Limiting Oxygen Index (LOI) value of 28.8 %. Cone calorimetry shows reductions of 41.6 % in peak heat release rate (PHRR), 23.4 % in total heat release (THR), and 21.6 % in total smoke production (TSP). The mechanical properties demonstrate great improvement, most notably a 165.3 % increase in impact strength. The dielectric properties are also ameliorated, with the dielectric constant dropping to 3.85 at 1 MHz. This work highlights the substantial potential of the OMMT@BIEPA-Al hybrid in simultaneously enhancing the flame retardancy, mechanical, thermal, and dielectric attributes of EP, thereby opening up promising avenues for the development of high-performance EP composites.迫切需要开发能够在安全性能（防火性能）和使用性能（包括机械、热学和介电性能）之间实现和谐平衡的环氧树脂（EP）复合材料。为了解决EP复合材料在安全性（特别是防火安全性）和使用性能之间的平衡问题，设计并制备了一种新型的有机-无机杂化阻燃剂OMMT@BIEPA-Al，该阻燃剂是通过在有机改性蒙脱土（OMMT）上原位生长具有活性苯并咪唑基团的烷基膦酸铝来增强其在EP中的分散。在5 wt%负载下，EP复合材料达到UL-94 V-0额定值，极限氧指数（LOI）值为28.8 %。锥量热法显示，峰值放热率（PHRR）降低了41.6 %，总放热率（THR）降低了23.4% %，总产烟率（TSP）降低了21.6% %。力学性能有很大改善，最显著的是冲击强度提高了165.3 %。介电性能也得到改善，在1 MHz时介电常数降至3.85。这项工作突出了OMMT@BIEPA-Al混合材料在同时增强EP的阻燃性、机械性能、热学性能和介电性能方面的巨大潜力，从而为高性能EP复合材料的开发开辟了有前途的道路。Ag nanoparticles uniformly anchored on attapulgite nanosheets synergistically improve the tribological properties of BF/PTFE fabric compositesHao Chen, Zhaozhu Zhang, Yaohui He, Chaoying Liao, Yue Zhang, Mingming Yang, Fanjie Chu, Junya Yuandoi:10.1016/j.compositesa.2025.109017 Ag纳米颗粒均匀锚定在凹凸棒土纳米片上，协同提高了BF/PTFE织物复合材料的摩擦学性能Liner composites (LC) are susceptible to damage under the rigours of heavy loads. Attapulgite, as a one-dimensional clay mineral, has been used as a reinforcing filler for fabric composites to overcome this defect due to its friction chemistry and rolling effect. Attapulgite nanosheets, as a novel two-dimensional material, have both the characteristics of clay and the ability to exploit the susceptibility of two-dimensional materials to interlayer slip. Therefore, in this work, a nanosheet (AT-NS) with uniform size was synthesized and applied for the first time in the field of friction. The AT-NS surface was loaded with AgNPs to construct AT-NS/Ag hybrids in order to achieve synergistic effects between 0D and 2D materials in the hybrid filler. The interlayer slip of the 2D AT-NS counteracted part of the shear force, and the AT-NS as well as its released Ag nanoparticles participated in the formation of the transfer film. For the tribological property tests of the composites, the wear rate and friction coefficient of the AT-NS/Ag1 composites with 2.0 wt% addition were reduced by 89.59 % and 9.5 % at 87.4 Mpa, respectively.内衬复合材料（LC）在严酷的重载作用下容易受到损伤。凹凸棒石是一种一维粘土矿物，由于凹凸棒石具有摩擦化学和滚动效应，因此被用作织物复合材料的增强填料。凹凸棒石纳米片作为一种新型的二维材料，既具有粘土的特性，又能利用二维材料对层间滑移的敏感性。因此，本文合成了一种具有均匀尺寸的纳米片（AT-NS），并首次应用于摩擦领域。在AT-NS表面加载AgNPs，构建AT-NS/Ag杂化体，实现0D和2D材料在杂化填料中的协同效应。二维AT-NS的层间滑移抵消了部分剪切力，AT-NS及其释放的Ag纳米颗粒参与了转移膜的形成。在复合材料的摩擦学性能测试中，在87.4 Mpa下，添加2.0 wt%的at - ns /Ag1复合材料的磨损率和摩擦系数分别降低了89.59 %和9.5 %。Composites Part B: EngineeringAntibacterial and biodegradable whey protein/gelatin composite films reinforced with lotus leaf powder and garlic oil for sustainable food packagingBehrokh Shams, Douglas W. Bousfield, Evan K. Wujcikdoi:10.1016/j.compositesb.2025.112549 抗菌和可生物降解乳清蛋白/明胶复合膜与荷叶粉和大蒜油增强可持续食品包装Whey protein isolate (WPI) shows great potential for sustainable food packaging, thanks to its exceptional oxygen and oil barrier properties., but its moisture barrier and mechanical strength are limiting factors. The novelty of this study lies in incorporation of hydrophobic lotus leaf (L) particles in WPI-based bio-composites and comparing two binders: sodium alginate (S) and polyethylene-glycol-sorbitan-monooleate also known as Tween®80 (T) to enhance moisture barrier and mechanical strength. The lotus leaf powder reduced water vapor transmission rate (WVTR) by 64% to 445.86 (g/m2⋅day), and the binders further reduced WVTR by up to 46% while doubling tensile strength. Foldability was significantly improved, with T-based films retaining durability for over at least three months. Films with T exhibited higher thermal stability and surface hydrophobicity, with a contact angle above 90°. The optimal film, G20-T-L-GO, included T as the binder, 20 (w/w% WPI) of glycerol, and garlic oil (GO) for antibacterial properties. This formulation demonstrated antibacterial activity against “Staphylococcus aureus” with around 3 cm of inhibition zone but not “Escherichia coli”. It achieved a 76% WVTR reduction compared to the control sample with no lotus leaf and exhibited rapid biodegradation in soil within four days. Additionally, it dissolved entirely in salt water, deionized water, and tap water over the same period, confirming its biodegradable nature. These features make this bio-composite film a viable option for sustainable and functional primary and secondary food packaging due to all components being FDA approved.乳清分离蛋白（WPI）因其出色的阻氧和阻油性能，在可持续食品包装方面展现出巨大潜力，但其阻湿性和机械强度是限制因素。本研究的创新之处在于将疏水性荷叶（L）颗粒掺入以 WPI 为基础的生物复合材料中，并比较了两种粘合剂：海藻酸钠（S）和聚乙二醇山梨醇酐单油酸酯（也称为吐温®80，T），以增强阻湿性和机械强度。荷叶粉使水蒸气透过率（WVTR）降低了 64%，降至 445.86（克/平方米·天），而粘合剂进一步将 WVTR 降低了多达 46%，同时使拉伸强度翻倍。可折叠性显著提高，以 T 为基础的薄膜至少能保持三个月的耐用性。含 T 的薄膜表现出更高的热稳定性和表面疏水性，接触角超过 90°。最优薄膜 G20-T-L-GO 采用 T 作为粘合剂，含 20（质量分数 WPI）的甘油，并添加大蒜油（GO）以增强抗菌性能。该配方对“金黄色葡萄球菌”表现出约 3 厘米的抑菌圈，但对“大肠杆菌”无抑制作用。与不含荷叶的对照样本相比，其水蒸气透过率降低了 76%，并且在土壤中四天内即可迅速生物降解。此外，它在盐水、去离子水和自来水中均能在相同时间内完全溶解，这证实了其可生物降解的特性。由于所有成分均获美国食品药品监督管理局批准，这些特性使这种生物复合薄膜成为可持续且功能性的食品初级和次级包装的可行选择。Nanoconfined Polymer Brushes for Enhanced Solar Steam Generation with Antifouling and Self-Cleaning PropertiesYue You, Yuxi Ma, Yingying Han, Juan Du, Xin Li, Yiming Bu, Yijun Qian, Weiwei Lei, Shuaifei Zhao, Jingliang Lidoi:10.1016/j.compositesb.2025.112608具有防污和自清洁性能的增强太阳能蒸汽发电纳米聚合物刷Interfacial solar steam generation is a promising technology for freshwater recovery from seawater and wastewater. However, surface salt crystallization and/or fouling on evaporators significantly reduce the long-term water evaporation efficiency. To address this issue, a new type of nanoconfined polymer brush (PB) with amide functional groups is designed and employed for improved antifouling properties and enhanced water evaporation. The PB utilizes graphene oxide nanosheets of atomic thickness as the substrate, with polymers growing on the nanosheets as bristles. The hydrophilic amide groups and nano-space confinement of PBs create layers with strong Donnan effect that trap five-fold more intermediate water (IW) than bulk water. Consequently, the high contents of IW act as an effective water evaporation source within the nanoconfined channels, preventing crystallization and enhancing water evaporation (2.25 kg m-2 h-1) with a light-to-heat conversion efficiency of about 86.9%. The evaporator based on PBs bring a new avenue for achieving a high solar steam generation efficiency with excellent salt self-cleaning capacity.界面太阳能蒸汽发电是一种很有前途的从海水和废水中回收淡水的技术。然而，蒸发器表面的盐结晶和/或结垢会显著降低水的长期蒸发效率。为了解决这一问题，设计了一种具有酰胺官能团的新型纳米聚合物刷（PB），并将其用于提高防污性能和提高水分蒸发。PB利用原子厚度的氧化石墨烯纳米片作为衬底，在纳米片上生长的聚合物作为刷毛。亲水酰胺基团和PBs的纳米空间限制形成了具有强唐纳效应的层，其捕获的中间水（IW）是原始水的五倍。因此，高含量的IW在纳米受限通道内作为有效的水蒸发源，防止结晶并促进水蒸发（2.25 kg m-2 h-1），光热转换效率约为86.9%。以PBs为基础的蒸发器为实现太阳能蒸发器的高效蒸发器和优异的盐自净能力开辟了新的途径。Research strategy of transition metal sulfide-based composite materials in sodium-ion batteries anodes: heterostructure and theoretical calculationPengcheng Zhang, Zhiyuan Wang, Zhangxing He, Diao Zhang, Jiansheng Wang, Yingna Zhaodoi:10.1016/j.compositesb.2025.112564钠离子电池负极过渡金属硫化物基复合材料研究策略：异质结构与理论计算This review investigates the application of transition metal sulfide (TMS) anode materials in modern energy storage systems, including sodium-ion batteries (SIBs). Despite its high specific energy capacity and excellent electronic conductivity being advantageous for energy storage, issues such as volumetric expansion, particle aggregation, and reduced conductivity during charge-discharge cycles are hindering the potential commercialization of TMS. Integrating TMS with alternative materials effectively mitigates these problems. This study evaluates the efficacy of TMS in conjunction with nanocarbon materials, two-dimensional MXenes, and MOF-derived TMS materials as anode components in SIBs. It clarifies the relationship between performance optimization and advancements in heterostructure engineering. Furthermore, it examines contemporary theoretical calculations and enhanced numerical modeling techniques for TMS materials in SIBs applications. Ultimately, the principal problems and prospective research avenues for TMS materials in the domain of SIBs are delineated. This paper thoroughly analyzes the performance benefits of TMS composite material systems in SIBs, offering researchers a clear insight into the current research landscape and delineating a blueprint for the advancement of TMS in SIBs.本文综述了过渡金属硫化物（TMS）负极材料在现代储能系统中的应用，包括钠离子电池（sib）。尽管其高比能容量和优异的电子导电性有利于能量存储，但诸如体积膨胀、粒子聚集和充放电循环过程中电导率降低等问题阻碍了TMS的潜在商业化。将TMS与替代材料相结合有效地缓解了这些问题。本研究评估了TMS与纳米碳材料、二维MXenes和mof衍生的TMS材料作为sib阳极组件的效果。阐明了性能优化与异质结构工程进步之间的关系。此外，它还检查了sib应用中TMS材料的当代理论计算和增强的数值模拟技术。最后，概述了TMS材料在sib领域的主要问题和未来的研究方向。本文深入分析了TMS复合材料系统在sib中的性能优势，为研究人员提供了对当前研究前景的清晰见解，并描绘了TMS在sib中的发展蓝图。Anomalous high-temperature oxidation behavior of SiC coatings on Cf/SiC Composites: Degradation mechanisms and microstructural evolution from 1200 °C to 1400 °CXiangyu Cai, Hongjiao Lin, Zhongyuan Sun, Lu Zhang, Songshan Jiang, Nan Meng, Zhixun Wen, Tao Feng, Shouyi Sun, Zhufeng Yuedoi:10.1016/j.compositesb.2025.112605SiC涂层在Cf/SiC复合材料上的异常高温氧化行为：从1200℃到1400℃的降解机制和微观组织演变SiC coatings on Cf/SiC composites undergo oxidation in high-temperature environments, reacting with O2 to form SiO2 layers. The low diffusion rate of O2 through SiO2 underscores its role in enhancing oxidation resistance. Pre-oxidation of SiC coated Cf/SiC composites (Cf/SiC–SiC) facilitates the formation of a protective SiO2 layer. This process significantly enhances the long-term oxidation resistance of the resulting Cf/SiC–SiO2 composites, with the degree of improvement being critically dependent on pre-oxidation temperature, SiO2 formation kinetics, oxygen diffusion rates, and other thermodynamic factors. In this investigation, Cf/SiC–SiC composites were subjected to isothermal oxidation at 1200 °C, 1300 °C, and 1400 °C for durations of 24 h, 48 h, 72 h, and 96 h. Results showed that at 1300 °C, the composite exhibited the lowest weight loss rate and optimum oxidation resistance. Specifically, the weight loss rate exhibited a continuous decrease from 1200 °C to 1300 °C, reaching its minimum value at 1300 °C. However, weight loss rate rapidly increased at 1400 °C, leading to a diminished protective performance. This phenomenon can be attributed variations into the density, uniformity, and fluidity of the oxide layer at different temperatures. The microscopic mechanisms underlying the differences were discussed in terms of atomic stress, gas diffusion, and phase transformation. A comprehensive analysis and validation of the findings were conducted using reactive molecular dynamics (MD) simulations and high-temperature oxidation experiments. Additionally, Transmission Electron Microscopy (TEM), X-ray Diffraction (XRD), and Fourier Transform Infrared (FTIR) Spectroscopy, were utilized to analyze the microstructural evolution and chemical composition of the oxidized composites.Cf/SiC复合材料上的SiC涂层在高温环境下氧化，与O2反应形成SiO2层。O2通过SiO2的低扩散速率强调了其增强抗氧化性的作用。对SiC涂层的Cf/SiC复合材料（Cf/SiC - SiC）进行预氧化，有利于形成保护性的SiO2层。该工艺显著提高了Cf/ SiC-SiO2复合材料的长期抗氧化性，其改善程度主要取决于预氧化温度、SiO2形成动力学、氧扩散速率和其他热力学因素。在本研究中，Cf/ SiC-SiC复合材料分别在1200°C、1300°C和1400°C等温氧化24 h、48 h、72 h和96 h。结果表明，在1300°C时，复合材料的失重率最低，抗氧化性能最佳。具体来说，从1200°C到1300°C，失重率呈连续下降趋势，在1300°C时达到最小值。然而，在1400°C时，失重率迅速增加，导致防护性能下降。这种现象可归因于不同温度下氧化层的密度、均匀性和流动性的变化。从原子应力、气体扩散和相变等方面讨论了差异的微观机制。利用反应分子动力学（MD）模拟和高温氧化实验对研究结果进行了综合分析和验证。利用透射电镜（TEM）、x射线衍射（XRD）和傅里叶变换红外光谱（FTIR）分析了氧化复合材料的微观组织演变和化学成分。Hydraulic bulge forming comparison of continuous and stretch broken carbon fiber prepreg laminatesYoni Shchemelinin, Jared W. Nelson, Cecily Ryan, Dilpreet Bajwa, Doug S. Cairns, Chris Ridgard, Roberta Amendoladoi:10.1016/j.compositesb.2025.112607连续与拉伸断裂碳纤维预浸层板液压胀形比较The demand for carbon fiber reinforced polymer composites is motivated by the increased need for high-strength, low-density materials, particularly in the automotive and aerospace industries. Continuous carbon fibers have limited formability due to their inherent brittleness which does not allow for plastic deformation. To address this limitation, stretch broken carbon fiber (SBCF) is being developed. SBCF is a form of carbon fiber created by statistically distributed breakage of aligned fibers at inherent flaw points. The final material is constituted of collimated shorter fibers with an average length larger than chopped fibers. In this work a hydraulic bulge test was used to evaluate the out-of-autoclave elevated temperature formability of quasi-isotropic prepreg laminates prepared with Hexcel IM-7 12 K continuous fibers and Montana State University SBCF newly generated materials impregnated with Cycom 977-3 resin. The enhanced formability of SBCF composites, when compared to the continuous ones, was demonstrated by a symmetrical stress response and a pseudo-plastic deformation mechanism until failure.对碳纤维增强聚合物复合材料的需求是由于对高强度、低密度材料的需求增加，特别是在汽车和航空航天工业。连续碳纤维由于其固有的脆性而不允许塑性变形，因而具有有限的成形性。为了解决这一限制，人们正在开发拉伸断裂碳纤维（SBCF）。SBCF是一种由排列纤维在固有缺陷点处的统计分布断裂而形成的碳纤维。最终材料由准直短纤维组成，其平均长度大于短切纤维。本文采用液压胀形试验对Hexcel IM-7 12k连续纤维和蒙大拿州立大学SBCF新生成材料浸渍Cycom 977-3树脂制备的准各向同性预浸层合板的高温成形性能进行了评价。与连续复合材料相比，SBCF复合材料的成形性增强表现为均匀的应力响应和直至失效的伪塑性变形机制。Flexural and flexural-after-impact strength of basalt fiber reinforced polymer improved by ultra-thin zirconia fiber/epoxy filmsJiaxin He, Yanan Lyn, Fei Cheng, Xiang Yuan, Guangming Yang, Xueling Liang, Shuying Shi, Hongyong Jiang, Xiaozhi Hu, Xi Chendoi:10.1016/j.compositesb.2025.112609超薄氧化锆纤维/环氧树脂膜提高玄武岩纤维增强聚合物的抗弯和抗冲击强度This study focused on the interlaminar structure optimization and flexural performance improvement of laminated basalt fiber reinforced polymers (BFRP). Zirconia fiber (ZF) was self-prepared in laboratory by electrospinning method and used as reinforcing fiber to mix with epoxy resin form ZF/epoxy mixture, and then were introduced into interlayer of BFRP composite to build multi-directional flexible pins. The flexible ZF pins behaved as the fiber bridging to connect and grasp adjacent layers for stronger interlaminar bonding. Various areal densities (0.75 wt.%, 1.5 wt.%, 3 wt.%, 4.5 wt.%) of ZF were designed to evaluate the reinforcement effect. Three point bending results showed that BFRP composites with 3 wt.% ZF exhibited the best flexural strength of 293.84 MPa and flexural strength after impact (FAI) of 23.44 MPa, enhanced by 48.67% and 44.87% respectively compared with the unreinforced specimens. The impact resistance was improved and the failure modes of BFRP were also changed from delamination-dominated failure to quasi-shear failure. In summary, the self-prepared ZF via electrospinning was a useful fiber to improve the flexural strength and FAI of BFRP composite, and had the potential to be an alternative in manufacturing high-performance laminated fiber-reinforced composite for civilian products.研究了层状玄武岩纤维增强聚合物（BFRP）的层间结构优化和抗弯性能改善。采用静电纺丝法在实验室自行制备氧化锆纤维（ZF），并将其作为增强纤维与环氧树脂混合形成ZF/环氧树脂混合料，再将其引入BFRP复合材料中间层中，形成多向柔性引脚。柔性ZF引脚充当光纤桥接，连接和抓住相邻层，以增强层间键合。设计了不同面积密度（0.75 wt.%、1.5 wt.%、3 wt.%、4.5 wt.%）的ZF来评价补强效果。三点弯曲试验结果表明，添加3 wt.% ZF的BFRP复合材料的抗折强度为293.84 MPa，冲击后抗折强度（FAI）为23.44 MPa，分别比未加筋试件提高48.67%和44.87%。BFRP的抗冲击性能提高，破坏模式由分层为主转变为准剪切破坏。综上所述，静电纺丝法制备的ZF是一种提高BFRP复合材料抗弯强度和FAI的有效纤维，具有制造高性能民用层压纤维增强复合材料的潜力。来源：复合材料力学仿真Composites FEM
