Advanced Composites and Hybrid Materials最新文献

{"title":"Interface-engineered PBA-derived Cu/Co/Fe oxide heterostructures for d-band-center-regulated ampere-level tandem nitrate-to-ammonia electrosynthesis","authors":"Zhihao Lei,&nbsp;Shuai Qi,&nbsp;Yashuai Pang,&nbsp;Chao Liu,&nbsp;Heran Geng,&nbsp;Guozhan Yang,&nbsp;Yan Hu,&nbsp;Xiangwei Zhang,&nbsp;Yuman Zhou,&nbsp;Shanjiang Wang,&nbsp;Maosong Liu,&nbsp;Wenjia Li,&nbsp;Xun Geng,&nbsp;Shujuan Huang,&nbsp;Xinwei Guan,&nbsp;Liang Qiao,&nbsp;Jiabao Yi","doi":"10.1007/s42114-026-01907-3","DOIUrl":"10.1007/s42114-026-01907-3","url":null,"abstract":"<div><p>Electrochemical nitrate reduction reaction (NO₃⁻RR) offers a sustainable route for ammonia production while simultaneously mitigating nitrate pollution. However, the simultaneous realization of near-unity selectivity and industrially relevant current density remains challenging because it requires precise regulation of multistep intermediate conversion and interfacial electronic structure. Here, we report a family of Prussian blue analogue-derived Cu/Co/Fe oxide heterostructures as compositionally programmable hybrid materials for high-rate nitrate-to-ammonia electrosynthesis. By tuning the Cu/Co ratio, the heterointerface coupling and associated d-band-center modulation can be rationally regulated to optimize *NO_x adsorption and sequential hydrogenation. Among them, the Cu₁Co₁FeO catalyst demonstrates exceptional performance, achieving a Faradaic efficiency toward NH₃ of 99.1%, a yield rate of 0.89 mmol h^− 1 cm^− 2 at − 0.25 V vs. RHE, while sustaining stable operation for 90 h at 2 A cm^− 2. Operando Raman and FTIR spectroscopy reveal the dynamic evolution of surface Cu–OH and Co(OH)₂ interfacial species under working conditions, which synergistically promote NO₃⁻ activation and *NO₂⁻ hydrogenation, respectively. Density-functional-theory calculations further indicate that heterostructure coupling together with Co incorporation shifts the d-band center to an optimal regime, balancing *NO_x adsorption, lowering the barrier for nitrate reduction, and suppressing poisoning and competitive hydrogen evolution under high-flux operation. This work establishes a structure-property-performance relationship for Cu–Co cooperative catalysis in multicomponent oxide heterostructures and highlights PBA-derived hybrid materials as a scalable platform for interface-engineered electrocatalysis and sustainable ammonia synthesis under industrially relevant current-density regime.</p><h3>Graphical Abstract</h3><p> A Prussian blue analogue-derived ternary oxide heterostructure enables ampere-level tandem nitrate-to-ammonia electrosynthesis through cooperative Cu–Co catalysis. Heterointerface coupling modulates the d-band center to optimize*NO_x adsorption, while dynamically reconstructed Cu- and Co--associated surface species selectively promote NO₃⁻ activation and *NO₂⁻ hydrogenation, respectively, thereby accelerating nitrate-to-ammonia conversion at high current densities with sustained stability. This work highlights interface- and composition-engineered hybrid oxide heterostructures as a viable platform for high-rate, selective nitrate electroreduction</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01907-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface modification of UHMWPE fibers from hydrophobic to hydrophilic and hydrophilic-roughened for enhanced fiber/matrix interfacial bonding in strain-hardening cementitious composites (SHCC)","authors":"Yan Sun,&nbsp;Maryam Mudasir,&nbsp;Guoqiang Du,&nbsp;Ye Qian","doi":"10.1007/s42114-026-01899-0","DOIUrl":"10.1007/s42114-026-01899-0","url":null,"abstract":"<div><p>This study investigates the fiber/matrix interfacial bonding mechanism considering hydrophobic, hydrophilic, and hydrophilic-roughened fibers in Strain-Hardening Cementitious Composites (SHCC). Ultrahigh molecular weight polyethylene (UHMWPE) fibers (P-fibers) were modified using an amphiphilic modifier entrapment technique to enhance their hydrophilicity (I-fibers) and further coated with nanoclay to increase their surface roughness (I-NC-fibers). Surface characterizations including wetting behavior, FTIR, and SEM–EDX analysis were used to confirm the effectiveness of the modification techniques. The mechanical performance of SHCC reinforced with the three types of fibers was evaluated using uniaxial tensile tests. Compared to P-fibers, incorporating I-fibers and I-NC-fibers into SHCC increased the first-cracking tensile strength by 43.3% and 62.2%, ultimate tensile strength by 19.1% and 50.4%, and strain capacity by 21% and 45.7%, respectively. Single-fiber pull-out tests further validated the findings, showing that I-fibers and I-NC-fibers exhibited enhanced interfacial frictional stress of 17.4% and 50.4%, and pull-out energy of 20.5% and 65.2%, respectively. The superior mechanical performance of SHCC can be attributed to the improved chemical bond fracture energy, frictional bonding stress, and pull-out energy at the fiber/matrix interface. Through micromechanical analysis, high pseudo strain hardening indicators, <span>({PSH}_{strength})</span> and <span>({PSH}_{energy})</span>, also ensured the saturated cracking and stable strain hardening behavior of SHCC reinforced with I-fibers and I-NC-fibers under tensile loading.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01899-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyclodextrin-assisted defect-rich MoWO3–x for synergistic adsorption–photocatalytic degradation of organic pollutants","authors":"Kyoungtae Park,&nbsp;Jaewon Lee,&nbsp;Kyunghoon Min,&nbsp;Byeongseok Kim,&nbsp;Hyung-Ho Park,&nbsp;Sang Eun Shim,&nbsp;Yingjie Qian","doi":"10.1007/s42114-026-01836-1","DOIUrl":"10.1007/s42114-026-01836-1","url":null,"abstract":"<div><p>Enhancing the adsorption and photocatalytic degradation of organic pollutants requires simultaneous optimization of interfacial properties and intrinsic electronic structure. Here, we report a one-pot hydrothermal synthesis of γ-cyclodextrin (γ-CD)-assisted molybdenum tungsten oxide (γ-MoWO_3−x), where γ-CD improves surface functionality and induces abundant structural defects. The γ-MoWO_3−x exhibits a 2.9-fold higher surface area and a more negatively charged surface (–27.25 to − 43.02 mV) due to γ-CD–derived hydroxyl groups. Acting as both an in situ reducing agent and defect-inducing molecule, γ-CD generates rich defective oxygen species and partially amorphizes the metal-oxide lattice, effectively tuning the band structure. As a result, γ-MoWO_3−x shows a 3.09-fold enhancement in adsorption–photocatalytic degradation of methylene blue, achieving &gt; 98% removal within 40 min under 1-sun irradiation. Mechanistic studies reveal hole-dominant oxidation pathways. Nanosecond transient absorption spectroscopy Indicates that γ-MoWO_3−x accumulates more photogenerated holes and exhibits a larger proportion of fast hole-decay components, suggesting a higher population of surface-accessible holes that can promote oxidation reactivity. Photoluminescence quenching and electrochemical impedance spectroscopy further indicate suppressed carrier recombination and improved charge mobility. Overall, this work presents a simple and scalable cyclic-oligosaccharide-mediated approach for simultaneous defect and interface engineering, providing valuable design principles for next-generation photocatalysts.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01836-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulfidation-induced phase engineering of NiCo2S4/MXene-nitrogen-doped carbon aerogels for boosting electromagnetic wave absorption","authors":"Jinmei Li,&nbsp;Hai Xie,&nbsp;Qihua Wang,&nbsp;Tingmei Wang","doi":"10.1007/s42114-026-01908-2","DOIUrl":"10.1007/s42114-026-01908-2","url":null,"abstract":"<div><p>The growing demand for electromagnetic compatibility in modern electronics requires the development of lightweight absorbers featuring strong attenuation and broad bandwidth. Although significant progress has been made, achieving optimal impedance matching while maintaining high dielectric loss remains a significant challenge for MXene-based composites. Herein, we tackled this issue using a sulfidation-induced phase engineering approach to construct NiCo₂S₄/MXene-nitrogen-doped carbon (NiCo₂S₄/MXene-NC) hierarchical aerogels. In this design, the chitosan (CS) biopolymer serves as an eco-friendly cross-linker, stabilizing few-layer MXene nanosheets and facilitating the formation of a robust three-dimensional (3D) conductive network via hydrothermal assembly and freeze-drying. Subsequent sulfidation treatment induced an in situ phase transition from urchin-like NiCo₂O₄ to NiCo₂S₄, enhancing electrical conductivity and generating numerous heterogeneous interfaces and defects. This innovative design orchestrates a synergistic interplay of dipole polarization, interfacial polarization, and multiple internal reflections within the porous network, optimizing both impedance matching and electromagnetic attenuation capability. As a result of these structural and compositional advantages, the optimized NiCo₂S₄/MXene-NC-4 aerogel exhibited outstanding electromagnetic wave (EMW) absorption performance. It achieved a minimum reflection loss (RL_min) of -55.7 dB at a thickness of 3.5 mm and a maximum effective absorption bandwidth (EAB_max) of 5.56 GHz at a thickness of 2.0 mm. Moreover, radar cross-section (RCS) simulations confirmed its superior electromagnetic dissipation capability across various incident angles. This work sets a paradigm for engineering high-performance EMW absorbers through integrated structural design and phase modulation, providing valuable insights for next-generation electromagnetic compatibility applications.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01908-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanofiber-constructed composite polymer electrolytes with dual-pathway Li⁺ transport and catalytic sulfide interfaces for lithium-sulfur batteries","authors":"Chih-Yu Kuo,&nbsp;Wei-Ming Huang,&nbsp;Jing-Yu Li,&nbsp;Mohamed Gamal Mohamed,&nbsp;Shiao-Wei Kuo,&nbsp;Chih-Feng Huang,&nbsp;Bing-Joe Hwang,&nbsp;Yun-Sheng Ye","doi":"10.1007/s42114-026-01892-7","DOIUrl":"10.1007/s42114-026-01892-7","url":null,"abstract":"<div><p>Composite polymer electrolytes (CPEs) are emerging as a promising materials platform for next-generation electrochemical systems, yet their development is often constrained by insufficient mechanical integrity, limited ion-transport efficiency, and unstable interfacial chemistry in hybrid architectures. Herein, we report a nanofiber-constructed hybrid composite electrolyte formed by integrating poly(ionic liquid)-modified aramid nanofibers (PIL@ANFs) with sulfide-based lithium thiophosphate (Li₃PS₄, LPS) nanoparticles. The PIL coating stabilizes ANFs during deprotonation, preserves their nanofibrillar morphology, and enables the formation of a continuous three-dimensional Li⁺ transport scaffold. Uniformly incorporated LPS nanoparticles simultaneously reinforce the mechanical framework, enhance ionic conductivity, and introduce catalytically active sulfide interfaces. The resulting hybrid composite exhibits high ionic conductivity (~ 10^-3 S cm^-1), an elevated Li⁺ transference number (&gt; 0.7), and robust interfacial stability at 60 °C. Advanced spectroscopic analyses (X-ray photoelectron spectroscopy and solid-state ⁶Li nuclear magnetic resonance), combined with density functional theory and all-atom molecular dynamics simulations, reveal a dual-mode ion-transport mechanism: localized Li⁺ hopping at polarized sulfide-rich domains coupled with long-range surface diffusion along the PIL@ANF network. This cooperative transport architecture also enables selective polysulfide anchoring on LPS surfaces, accelerating redox kinetics and suppressing interfacial degradation. As a proof of concept, the hybrid electrolyte enables stable lithium metal cycling and delivers high reversible capacity and rate capability in lithium–sulfur cells at elevated temperature. This work establishes a structure-guided strategy for designing mechanically robust, ionically conductive, and catalytically active hybrid composite electrolytes, highlighting the potential of nanofiber–sulfide architectures for advanced electrochemical materials.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01892-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plant cuticle-inspired surface functionalization of bamboo: integrating fire resistance, superhydrophobicity, and bioprotection","authors":"Rui Peng,&nbsp;Xi Yu,&nbsp;Linpeng Yu,&nbsp;Yuhan Jiang,&nbsp;Minglei Su,&nbsp;Rong Zhang,&nbsp;Zixuan Yu,&nbsp;Xiaobei Jin,&nbsp;Daochun Qin","doi":"10.1007/s42114-026-01891-8","DOIUrl":"10.1007/s42114-026-01891-8","url":null,"abstract":"<div><p>The widespread application of bamboo, a renewable and eco-friendly material, is hindered by its inherent flammability, hygroscopicity, and susceptibility to biological degradation. Inspired by the hierarchical barrier architecture of the plant leaf cuticle, this study pioneers a cuticle-mimetic bilayer design to develop a multifunctional modified bamboo (PPCU-PDB) via a vacuum-assisted layer-by-layer strategy. This design uniquely couples a crosslinked, cutin-like inner network with a wax-like outer hydrophobic layer. A crosslinked network of polyethyleneimine, phytic acid, and copper(II) ions (PEI-PA-Cu²⁺, PPCU) was constructed on delignified bamboo as the cutin-analogous inner layer, followed by grafting with 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PFDTS) to form the wax-like outer layer. Atomic force microscopy (AFM) and three-dimensional laser scanning microscopy revealed a cross-scale roughness hierarchy (microscale Sa = 12.00 ± 0.31 μm, nanoscale Ra = 44 ± 1.02 nm), which is crucial for stabilizing the Cassie-Baxter wetting state. The modified material achieved a limiting oxygen index (LOI) of 43.19 ± 1.10%. The peak heat release rate (P_HRR) and total heat release (THR) decreased by 50.45 ± 2.21% and 19.98 ± 1.45%, respectively, compared to untreated bamboo. A water contact angle (WCA) of 151.3 ± 1.8° confirmed superhydrophobicity, accompanied by improved dimensional stability (anti-swelling efficiency, ASE = 59.91 ± 2.34%). Antibacterial rates against <i>Staphylococcus aureus</i> and <i>Escherichia coli</i> both exceeded 99.99%, and anti-mold efficacy against <i>Aspergillus niger</i> reached 75 ± 0%. Notably, the biomimetic bamboo retained self-extinguishing capability (LOI′ = 35.68 ± 0.94%) and robust coating integrity even after 14 days of water leaching, a level of post-leaching flame retardancy seldom achieved by bio-based modification systems. This work provides a new cuticle-inspired paradigm for high-performance, durable, and multifunctional bamboo materials.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 5","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01891-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148986347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial engineering of flower-like Fe₃O₄@C/FRGO multiscale heterostructures for broadband and efficient microwave absorption","authors":"Cao Yang,&nbsp;Jialiang Luo,&nbsp;Yue Wang,&nbsp;Yiqing Xue,&nbsp;Guigao Liu,&nbsp;Zhehong Lu,&nbsp;Suwei Wang,&nbsp;Wei Jiang","doi":"10.1007/s42114-026-01838-z","DOIUrl":"10.1007/s42114-026-01838-z","url":null,"abstract":"<div><p>Rational microstructure design and compositional regulation have emerged as effective pathways to enhance electromagnetic wave (EMW) absorption, However, simultaneously achieving strong absorption, broad bandwidth, thin thickness and low filler loading remains challenging. Herein, three-dimensional hierarchical heterostructures comprising amorphous carbon-wrapped magnetite supported on flower-like reduced graphene oxide (Fe₃O₄@C/FRGO) was constructed through spray-drying assembly, spatially confined solvothermal crystallization, and defect-modulated carbonization. By tailoring the reduction degree of FRGO and tuning ferrite composition through thermal treatment, the dielectric-magnetic properties and interfacial interactions are precisely regulated. With merely ≈ 3.26 wt% incorporation of FRGO, the optimized composite exhibits a minimum reflection loss (RL_min) of -66.29 dB at 1.94 mm (20 wt% filler) and a broad effective absorption bandwidth (EAB) of 6.60 GHz (11.30–17.90 GHz) at 2.73 mm (30 wt% filler). This exceptional performance is attributed to the engineered heterointerfaces that facilitate multi-path energy dissipation via magneto–dielectric coupling optimized impedance matching, intensive interfacial polarization from abundant hierarchical architectures and the flower-like structure induced multiple scatterings. This study highlights the pivotal role of interfacial engineering in heterostructured absorbers and offers a design paradigm for high-performance EMW-absorbing materials through coordinated component–structure modulation.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01838-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial reorganization of scalable PEEK/ COF membrane via crystallization-induced shrinkage strategy for molecular sieving","authors":"Xue Li,&nbsp;Zhiwei Zhao,&nbsp;Lulu Yuan,&nbsp;Liyuan Chen,&nbsp;Siwen Ding,&nbsp;Ren Qiang,&nbsp;Haibo Zhang,&nbsp;Jinhui Pang,&nbsp;Zhenhua Jiang","doi":"10.1007/s42114-026-01902-8","DOIUrl":"10.1007/s42114-026-01902-8","url":null,"abstract":"<div><p>Incorporating covalent organic frameworks (COF)-fillers into mixed matrix membranes (MMMs) has great potential for scalable organic solvent nanofiltration (OSN). However, the deficient interfacial compatibility poses a fatal defect and contributes to dissatisfactory molecular sieving capability. Herein, we fabricate scalable polyether ether ketone/covalent organic frameworks (PEEK/COF) mixed-matrix membranes by crystallization-induced shrinkage strategy. By virtue of crystallization-induced shrinkage of the polymer substrate, the interface between COF and PEEK reorganized to form a defect-free separation layer. The optimal PEEK/COF membrane realizes a high ethanol permeance of 61.4 L m^− 2 h^− 1 bar ^− 1 and 90.6% rejection of sunset yellow (452 Da). The resultant membranes maintain superior rejection performance after immersing in an organic solvent at high temperature or continuous operation for 36 h. The universality is proved by blending other nanomaterials. This study provides a feasible method for the preparation of OSN membranes and promotes the practical scalable OSN application of nanomaterials-based separation membranes.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01902-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiscale compressive behavior and constitutive modeling of self-skinning polyurethane grouting materials: synergistic effects of density and dimensional","authors":"Yongshen Wu,&nbsp;Wang Pan,&nbsp;Cuixia Wang,&nbsp;Timon Rabczuk,&nbsp;Chao Zhang","doi":"10.1007/s42114-026-01895-4","DOIUrl":"10.1007/s42114-026-01895-4","url":null,"abstract":"<div><p>In trenchless rehabilitation of infrastructures, self-skinning polyurethane grouting materials (SSPUGMs) are tailored to meet different strength requirements and defect sizes within infrastructures. However, the synergistic effects of specimen size parameters and skin preservation on their compressive behavior — particularly regarding constitutive models — remain poorly understood. In this work, the compressive performance, failure mechanisms, and damage constitutive models were investigated through a multiscale method combining macro-micro experimental characterization, molecular dynamics simulations, and theoretical analysis accounting for density differences and size effects. The results showed that macroscopic compression failure modes involved core fragmentation, skin rupture, collapse, and through-cracks. Microscopically, the cell fracture rates at the failure section approached 100%. Compressive deformation induces nanovoid nucleation and enhances interchain sliding within the SSPUGMs matrix. The elastic, yielding, and failure stages are predominantly governed by density and diameter-to-height ratio (ranging from 0.5 to 2.0), with specimen size exhibiting negligible influence. To quantitatively capture these stress-strain relationships, a segmented constitutive model was developed, along with a simplified model incorporating density and size for practical engineering applications, achieving a mean prediction error below 11% compared to experimental data. This work offers valuable insights for engineering applications of SSPUGMs.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01895-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on impact abrasive wear performance of interfacial phase transition-reinforced particle-reinforced medium manganese steel composites","authors":"Jinrong Chai,&nbsp;Jinya Wang","doi":"10.1007/s42114-026-01885-6","DOIUrl":"10.1007/s42114-026-01885-6","url":null,"abstract":"<div><p>To address the technical bottleneck of poor resistance to impact-abrasive wear in traditional medium manganese steel, this study designs and prepares zirconia-toughened alumina particle-reinforced medium manganese steel composites (ZTA/MMS) based on the interfacial phase transformation strengthening mechanism. A synergistic strengthening mechanism combining the anti-plowing effect of ZTA particles and interfacial stress-induced martensitic transformation energy absorption is proposed. Results show that ZTA/MMS exhibits significantly higher abrasion resistance than the matrix. The wear loss first decreases and then increases with increasing impact energy and Mn content, which is closely related to the regulatory effect of Mn content on interfacial martensitic transformation. During impact abrasive wear, ZTA particles effectively inhibit the plowing effect of abrasives on the matrix; meanwhile, interfacial martensitic transformation can absorb impact energy, strengthen the constraint effect of the particles, and prolong their protective effect. The optimal wear resistance is achieved when the Mn content is 8% (ZTA/Mn8), with a wear resistance 2.6 times higher than that of the matrix. This work verifies that the introduction of interfacial phase transformation strengthening can significantly enhance the adaptability of ZTA/MMS to impact-abrasive wear service conditions, providing a novel design concept for developing high-performance anti-wear composites.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"9 4","pages":""},"PeriodicalIF":15.5,"publicationDate":"2026-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-026-01885-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148751058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}