Journal of Materials Science & Technology最新文献

{"title":"Temperature-dependent island size-morphology correlation in Smoluchowski ripening from machine-learning molecular dynamics","authors":"Tong Liu, Chongteng Wu, Ziqi Sun, Yongkang Jiang, Tao Zhang, Zhenwei Wu, Maozhi Li, Yuefeng Su, Gang Sun, Duanyun Cao","doi":"10.1016/j.jmst.2026.08.088","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.088","url":null,"abstract":"Precise fabrication of nanostructures on surfaces requires an atomic-level understanding of surface ripening. Although Smoluchowski ripening (SR) describes the phenomenon where nanostructures migrate, collide, and coalesce, resolving the coupled temperature-dependent evolution of island size and morphology in a many-island ensemble remains challenging. Here, we develop a high-accuracy machine-learning potential (MLP) combined with large-scale molecular dynamics (MD) simulations to examine nanosecond-scale, early-stage nonequilibrium SR-like coarsening of Zn adatoms on the Zn(0001) basal surface over 100–500 K at 12.5% coverage, using three independent 4 ns trajectories at each temperature. We identify a reproducible three-stage evolution: initial clustering and early aggregation, active coalescence, and quasi-steady ripening. Temperature strongly regulates island size and morphology, with higher temperatures yielding larger, less morphologically anisotropic islands. Crucially, we uncover a consistent temperature-dependent island size-morphology correlation and trace it to the coupling between size-dependent thermodynamic preference for higher-coordination compact structures and temperature-enhanced kinetic relaxation through edge diffusion and post-coalescence rearrangement. These results demonstrate the capability of MLP-MD and provide an atomistic framework for understanding the coupled evolution of island size and morphology during early-stage surface coarsening, with significant implications for fields such as catalysis and electronic devices.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"47 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hardness convergence enables ductilization of flash-heated high-carbon martensitic steel via two-stage tempering","authors":"Haixiao Ye, Liejun Li, Xianqiang Xing, Jianping Ouyang, Jixiang Gao, Chengpeng Huang, Zhengwu Peng","doi":"10.1016/j.jmst.2026.08.087","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.087","url":null,"abstract":"Flash quench-tempering is an efficient route for producing ultrahigh-strength high-carbon martensitic steels by refining the martensitic framework and retaining a high defect density. However, further improving ductility without sacrificing ultrahigh strength remains challenging because non-equilibrium carbon distribution generates microscale mechanical heterogeneity and promotes strain localization. Here, we propose a two-stage tempering strategy to ductilize a flash-heated high-carbon low-alloy martensitic steel without sacrificing strength. Compared with the flash quench-tempered (QT) steel, which exhibited a yield strength of ∼2067 MPa, an ultimate tensile strength of ∼2254 MPa, and a total elongation of ∼7.5%, the secondary-tempered steel, hereafter referred to as QTT steel, maintained comparable strength while increasing the total elongation to ∼11.1%. Microstructural characterization revealed continued carbide evolution from η-Fe<ce:inf loc=\"post\">2</ce:inf>C to θ-Fe<ce:inf loc=\"post\">3</ce:inf>C, while the martensitic block size and dislocation density were both largely retained. Nanoindentation mapping demonstrated a clear convergence of local hardness after secondary tempering, as evidenced by the decrease in the fraction of high-hardness indents above 12 GPa from 19% to 3.5% and the reduction in hardness standard deviation from 3.1 to 1.8 GPa. High-resolution micro-digital image correlation (μ-DIC) further revealed reduced microscale strain heterogeneity after secondary tempering, indicating improved deformation compatibility. This enhanced ductility is attributed to hardness convergence and improved deformation compatibility rather than global martensite softening. These findings establish two-stage tempering as a practical strategy for ductilizing flash-heated ultrahigh-strength martensitic steels by tailoring local mechanical gradients.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"9 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temperature-dependent interfacial degradation and premature oxide spallation of a Y-Hf co-doped AlCrFeNi multi-principal element alloy","authors":"Aihui Huang, Yusheng Tian, Yifeng Tang, Dongyu Wei, Han Zhang, Shiping Cai, Pengyi Lv, Ning Wang, Youbei Sun, Chao Yang, Guoliang Zhu, Jie Lu, Xiaofeng Zhao, Paul K. Chu","doi":"10.1016/j.jmst.2026.08.089","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.089","url":null,"abstract":"The high-temperature oxidation resistance of multi-principal element alloys (MPEAs) is influenced by the adhesion and stability of the oxide scale. In this study, the oxidation behavior and failure mechanism of the Y-Hf co-doped AlCrFeNi MPEA at 1100 and 1200°C in static air are studied. After oxidation for 500 h at 1100°C, a continuous, adherent α-Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> scale consisting of inner columnar grains and outer equiaxed grains is formed. In contrast, severe spallation and interfacial rumpling are observed after oxidation for 50 h at 1200°C, despite the formation of a similar α-Al<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">3</ce:inf> scale. The premature spallation is attributed to the degradation of the oxide-scale/alloy interface. Accelerated Al consumption and phase-dependent Al/Ni mobility mismatch promote interfacial pore formation, reducing the effective contact area between the scale and substrate. The sulfur enrichment detected at the spalled interface suppresses pore healing and converts interfacial pores into effective decohesion sites. Furthermore, the reduced high-temperature strength of the alloy enhances oxide rumpling, facilitating stress localization and accelerating scale spallation. These results indicate that the beneficial Y-Hf reactive-element effect in stabilizing the oxide scale becomes insufficient at 1200°C under severe interfacial degradation conditions, providing scientific guidance for developing MPEAs with enhanced oxidation resistance.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"17 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in covalent organic frameworks-based S-scheme photocatalysts","authors":"Guotai Sun, Jiayao Wei, Zige Tai, Yuting Liu, Yaoyao Wang, Hongyu Xiang","doi":"10.1016/j.jmst.2026.09.013","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.013","url":null,"abstract":"Covalent organic frameworks (COFs) have drawn considerable interest in photocatalysis owing to their π‑conjugated networks, large specific surface areas, and adjustable pore structures. However, single‑component COFs are constrained by rapid photo-generated charge recombination and insufficient redox driving forces, which hamper their catalytic efficiency. Constructing S‑scheme heterostructures by coupling COFs with suitable semiconductors can facilitate charge separation and boost both oxidation and reduction capacities. This review first outlines the evolution of S‑scheme heterojunctions and the regulation principles of interfacial charge carrier migration. Subsequently, COFs are categorized according to their linkages and building blocks. Then, the synthesis strategies and characterization approaches of COF‑based S‑scheme heterostructures, along with the applications in photocatalytic H<ce:inf loc=\"post\">2</ce:inf> production, H<ce:inf loc=\"post\">2</ce:inf>O<ce:inf loc=\"post\">2</ce:inf> synthesis, CO<ce:inf loc=\"post\">2</ce:inf> reduction, organic conversion, and pollutant degradation, are reviewed. Lastly, to address the remaining challenges, we propose several recommendations, including strengthening interfacial bonding, enhancing durability, lowering costs, and incorporating multiple advanced characterization techniques, to facilitate the fabrication of high-efficiency photocatalytic systems.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"36 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zr-regulated discontinuous precipitation suppressing intermediate-temperature embrittlement in L12-strengthened HEAs","authors":"Hua Luo, Jiang Ju, Pengbo Wang, Limin Lai, Xier Luo, Tao Yang, Guoliang Zhu, Junhua Luan, Kangcheung Chan","doi":"10.1016/j.jmst.2026.09.012","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.012","url":null,"abstract":"Intermediate-temperature embrittlement (ITE) limits the structural reliability of L1<ce:inf loc=\"post\">2</ce:inf>-strengthened high-entropy alloys (HEAs). However, the microstructural origin of preferential grain-boundary damage during ITE, particularly the role of discontinuous precipitation (DP), remains unclear. In the heat-treated Al<ce:inf loc=\"post\">0.5</ce:inf>Cr<ce:inf loc=\"post\">0.9</ce:inf>FeNi<ce:inf loc=\"post\">2.5</ce:inf>V<ce:inf loc=\"post\">0.2</ce:inf> HEA, ITE is closely associated with preferential damage along DP-affected grain boundaries. Here, we reveal that trace Zr microalloying mitigates ITE by regulating this damage process. Zr addition increases the elongation at 700 °C from ∼2.5% to ∼23.4% while retaining comparable strength. Multiscale characterization reveals that Zr substantially reduces the DP area fraction, refines DP colonies, and modifies the body-centered cubic morphology within the DP regions by decreasing the proportion of lamellar constituents. The refined DP structure disrupts continuous brittle damage pathways and delays grain-boundary crack initiation. In addition, serrated grain boundaries may further impede crack propagation. Consequently, the dominant failure mode shifts from intergranular fracture to ductile fracture. These findings indicate that Zr-induced DP refinement mitigates grain-boundary damage and improves ductility in the studied alloy at 700 °C, suggesting a potential microstructural design route for alleviating ITE in L1<ce:inf loc=\"post\">2</ce:inf>-strengthened HEAs.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"152 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Around-the-clock intelligent sensing transportation systems based on vdWs n-p-n heterostructure memristive arrays","authors":"Wendi Xu, Haoning Liu, Hong Wang, Yuli Xue, Jialiang Yang, Yuejiao Zhang, Shufang Wang, Xiaobing Yan","doi":"10.1016/j.jmst.2026.09.011","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.011","url":null,"abstract":"The detection of near-infrared light is of great importance in fields such as traffic monitoring, medical imaging, and security monitoring. However, conventional sensing systems based on the von Neumann architecture face fundamental challenges in terms of integration and performance due to their sensing-computing separation model. In this study, we present a van der Waals n-p-n Bi<ce:inf loc=\"post\">2</ce:inf>Te<ce:inf loc=\"post\">3</ce:inf>/SnSe/Nb:SrTiO<ce:inf loc=\"post\">3</ce:inf> hetero-memristor. This device combines the advantages of two-dimensional (2D) topological insulators and 2D ferroelectric materials. Modulating the ferroelectric polarization effectively adjusts the device performance, achieving a 75% yield, an optical on/off ratio of approximately 10<ce:sup loc=\"post\">4</ce:sup>, and a pulse cycle lifetime of over 10<ce:sup loc=\"post\">8</ce:sup> cycles. Furthermore, the device exhibits stable 32 resistance states and a pronounced wavelength-dependent optical response, demonstrating exceptional stability over 31000 optical switching cycles under 808 nm illumination. By integrating optical measurement precision with infrared spectral robustness, a near-infrared sensing system based on memristor sensing arrays has been realized. Incorporating the memristive sensing characteristics into the YOLOv11-based recognition framework, the proposed system achieves accuracy rates of 83% and 93% for pedestrian and vehicle recognition, respectively. These recognition outcomes demonstrate the potential of intelligent near-infrared sensing systems for neuromorphic perception applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"164 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring strain delocalization in particle-reinforced metal matrix composites toward strength-ductility synergy through core-shell heterostructured metallic building blocks","authors":"Elham Garmroudi Nezhad, Farhad Saba, Daijun Hu, Genlian Fan, Zhanqiu Tan, Zhiqiang Li, Di Zhang","doi":"10.1016/j.jmst.2026.07.119","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.07.119","url":null,"abstract":"Particle-reinforced metal matrix composites (PRMMCs) suffer from severe strain localization stemming from the mechanical incompatibility between hard reinforcements and soft metallic matrices. To overcome this challenge, SiC-nanoparticle-decorated aluminum powder was subjected to low-energy ball milling to produce core-shell heterostructured building blocks composed of ultrafine-grained (UFG) shells surrounding coarse-grained (CG) cores. Upon consolidation with micro-SiC particles, these building blocks induce a bulk composite featuring a dual core-shell architecture of CG-UFG matrix and SiC-UFG particles. Mechanistically, the UFG shells served distinct and complementary functions: Those around the CG in the matrix provided a hetero-deformation-induced strengthening contribution of ∼68 MPa (∼14% of yield strength) via long-range back stresses arising from hetero-interfaces; concurrently, those around micro-SiC particles suppressed strain localization at particle-matrix interfaces and promoted macroscale uniform deformation. As a result, an exceptional tensile strength of ∼685 ± 26 MPa combined with &gt; 8% elongation was achieved. Therefore, the featured dual core-shell architecture induced by CG-UFG metallic building blocks offers a robust design route for achieving strength-ductility synergy in PRMMCs.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"61 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic-guided design of cost-effective ultrahigh-strength carbide-free bainitic steel","authors":"Qiyang Tan, Zhong Zheng, Haiwei Chang, Ruth Knibbe, Ming-Xing Zhang","doi":"10.1016/j.jmst.2026.08.085","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.085","url":null,"abstract":"Carbide-free bainitic (CFB) steels offer an attractive combination of strength, ductility, and toughness but generally rely on complex alloy chemistries and prolonged isothermal treatments to achieve bainite formation and retained-austenite stabilisation. Here, a new air-cooled CFB steel with simplified chemistry was developed using a thermodynamics-guided alloy design framework. By analysing the effects of common alloying elements on the bainite start temperature, <mml:math altimg=\"si11.svg\"><mml:msubsup><mml:mi>T</mml:mi><mml:mn>0</mml:mn><mml:msup><mml:mrow></mml:mrow><mml:mo>′</mml:mo></mml:msup></mml:msubsup></mml:math> paraequilibrium locus, and bainite hardenability, the carbon partitioning window is introduced as a thermodynamic descriptor to assess the compatibility of bainite formation under continuous cooling. Using this framework, it is shown that combined additions of cost-effective Mn, Al, and Si are sufficient to promote carbide-free bainite without relying on conventional heavy alloying with Ni, Cr, or Mo. Based on this design strategy, a Fe-0.4C-3.5Mn-2Si-0.5Al steel was selected and experimentally validated. The alloy formed a fully CFB microstructure directly after forging and air cooling, eliminating the need for prolonged isothermal treatment. The as-forged steel exhibits a yield strength of ∼1650 MPa, an ultimate tensile strength exceeding 2300 MPa, an elongation greater than 8%, and a Charpy impact toughness of 14 J. These properties are comparable to those of heavily alloyed CFB and martensitic steels while requiring substantially simpler chemistry and processing. The proposed design framework provides a practical pathway for developing cost-effective, sustainable ultrahigh-strength bainitic steels.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"393 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148984726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Host-guest interaction and π–π stacking-directed construction of three-dimensional monolithic precursors for molecular-level N/O/S co-doped porous carbon in supercapacitors","authors":"Yijian Zhang, Yan Wang, Bin Xie, Wuyi Xiao, Manqing Zhao, Qiuhong Bai, Cong Li, Yu Xu, Luwei Zhang, Yehua Shen","doi":"10.1016/j.jmst.2026.08.081","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.08.081","url":null,"abstract":"Heteroatom doping is an effective strategy for enhancing the electrochemical performance of porous carbon for supercapacitors. However, inhomogeneous dopant distribution within carbon frameworks presents challenges in enhancing specific capacitance. Herein, a molecular-level heteroatom doping strategy was proposed for constructing N/O/S co-doped porous carbon (DPC) through synergistic integration of chemically induced phase separation (CIPS), host-guest inclusion, and π–π stacking interactions. Monochlorotriazinyl-β-cyclodextrin was synthesized as a host molecule and oxygen source to encapsulate sulfur-containing guest molecules, and the aromaticity of triazine moieties and guest molecules further promoted π–π stacking-assisted assembly. Meanwhile, branched polyethylenimine (b-PEI) served as both nitrogen source and crosslinker to construct a three-dimensional interconnected monolithic precursor via CIPS. The resulting monolithic precursor enabled homogeneous heteroatom incorporation to enhance pseudocapacitance and facilitated the formation of hierarchically porous carbon with abundant accessible active sites after carbonization and activation. Benefiting from uniform N/O/S co-doping, high specific surface area, and hierarchical porosity, the obtained DPC delivered a high specific capacitance of 642 F g<ce:sup loc=\"post\">−1</ce:sup> at 0.5 A g<ce:sup loc=\"post\">−1</ce:sup> and maintained 99% capacitance retention after 20,000 cycles in a three-electrode system. Furthermore, the assembled symmetric supercapacitor achieved an energy density of 19.78 Wh kg<ce:sup loc=\"post\">−1</ce:sup> at a power density of 299.95 W kg<ce:sup loc=\"post\">−1</ce:sup>, with 96% capacitance retention after 10,000 cycles. Notably, the assembled asymmetric supercapacitor delivered an energy density of 40.2 Wh kg<ce:sup loc=\"post\">−1</ce:sup>. This work provides an effective strategy for achieving uniform heteroatom doping in porous carbon materials toward high-performance supercapacitors.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"4 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148947073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon nitride enhanced with carbon dots in PDMS coatings: A synergistic approach for elevating corrosion resistance and photothermal self-healing activity","authors":"Keyi Chen, Shunhong Zhang, Tao Zhou, Bo Xiong, Yuzhen Zhao, Weilong Shi","doi":"10.1016/j.jmst.2026.09.010","DOIUrl":"https://doi.org/10.1016/j.jmst.2026.09.010","url":null,"abstract":"Multifunctional photothermal self-healing anticorrosion coatings have attracted increasing attention for practical applications. Herein, CDs were loaded onto carbon nitride nanosheets (g-C<ce:inf loc=\"post\">3</ce:inf>N<ce:inf loc=\"post\">4</ce:inf> (CN)) and incorporated into polydimethylsiloxane (PDMS) to prepare carbon dots-decorated carbon nitride (CCN)/PDMS coatings with photothermal self-healing, antimicrobial, and anti-biofouling functions. As verified by electrochemical impedance spectroscopy tests, the impedance arc radius of CCN/PDMS coatings after 28 days of immersion is still 2.81 × 10<ce:sup loc=\"post\">9</ce:sup> Ω cm<ce:sup loc=\"post\">2</ce:sup>, which is higher than that of pure PDMS coatings (4.61 × 10<ce:sup loc=\"post\">7</ce:sup> Ω cm<ce:sup loc=\"post\">2</ce:sup>) and CN/PDMS coatings (6.85 × 10<ce:sup loc=\"post\">8</ce:sup> Ω cm<ce:sup loc=\"post\">2</ce:sup>). In addition, the coating scratches were able to be photothermally self-healed within 120 min, while exhibiting a certain degree of anti-biofouling properties with inhibition and suppression of <ce:italic>Chlorella</ce:italic> and <ce:italic>Escherichia coli</ce:italic>. This work serves as a reference framework for the design of multifunctional smart anti-corrosion coatings.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"37 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148947074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}