Surface & Coatings Technology最新文献

{"title":"Dry sliding friction and wear behavior of HVOF sprayed FeCrMnCoNi high entropy coatings (HECs) at room and elevated temperatures","authors":"Payank Patel ,&nbsp;Venkata Naga Vamsi Munagala ,&nbsp;Amit Roy ,&nbsp;Navid Sharifi ,&nbsp;Sima A. Alidokht ,&nbsp;Mary Makowiec ,&nbsp;Richard R. Chromik ,&nbsp;Christian Moreau ,&nbsp;Pantcho Stoyanov","doi":"10.1016/j.surfcoat.2025.132138","DOIUrl":"10.1016/j.surfcoat.2025.132138","url":null,"abstract":"<div><div>Despite their extensive use in the aerospace industry Ni-, Ti- and Co-based alloys have shown some limitations when used in tribological interfaces under extreme environments, particularly in next-generation aero-engines where high temperatures are prevalent. To address these challenges, there is a growing demand for the development of wear-resistant coatings capable of operating efficiently under such harsh environments. High entropy alloys (HEAs) have emerged as potential candidates for high temperature tribological applications due to their superior combination of mechanical and thermal properties. However, their wear behavior over a wide range of temperatures has not been extensively studied. In this study, FeCrMnCoNi high entropy coatings (HECs) were developed using the high-velocity oxygen fuel (HVOF) process under three different spraying conditions: oxygen-rich (OR), fuel-rich (FR), and fuel-rich with high feed rate (H-FR). The tribological behavior of these HECs was evaluated under dry sliding conditions at room temperature (100 m sliding) and 350 °C (12 m and 100 m sliding) against alumina counterballs. The OR coatings demonstrated significantly improved wear performance at both temperatures compared to FR and H-FR coatings. A detailed characterization of the wear tracks using high-resolution electron microscopy and surface profilometry revealed that the enhanced wear performance of OR coatings at elevated temperatures could be attributed to their relative higher hardness, the formation of a smooth and compact tribofilm in the contact region, and subsurface strengthening through grain refinement. This research provides valuable insights into the wear mechanisms of HEA-based coatings, offering a pathway to develop more effective high-temperature tribological solutions for aerospace and other industrial applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132138"},"PeriodicalIF":5.3,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the synergistic potential: Surface topology and osteogenic elements in biodegradable Zn alloys","authors":"Xuan Yang,&nbsp;Huafang Li","doi":"10.1016/j.surfcoat.2025.132140","DOIUrl":"10.1016/j.surfcoat.2025.132140","url":null,"abstract":"<div><div>The topological structure of material surfaces plays a crucial role in cell behavior and tissue regeneration. Current research and applications concerning topological structures for tissue repair predominantly revolve around polymer materials and traditional inert metals. To expand the application of topological structures in the field of biomaterials, this study employed laser etching to create four different topological structures – groove, grid, triangle, and star – on the surface of a biodegradable Zn-0.4Li alloy. In this study, we investigated the effects of different topological structures on the degradation and antibacterial properties of alloys, as well as their influence on cellular behavior and function when synergistically interacting with osteogenic active elements. Our results demonstrated that the presence of micro-nano composite topological structures has significantly altered the physicochemical properties of the material surface. Additionally, laser treatment and the increase in surface roughness resulted in the release of a higher Zn ion concentration. On the one hand, the material's antibacterial performance was enhanced under the combined action of the micro-nano composite on the surface inhibiting bacterial adhesion and the bactericidal effect of zinc ions. On the other hand, excessive zinc ions may cause the concern of cell viability decrease. The tolerance of cells to zinc ions was improved by adding osteogenic elements Ca²⁺ and Sr²⁺. The synergistic effect of micro-nano composite topological structures and osteogenic elements promoted cell adhesion and osteogenic differentiation, and induced cell orientation. The biocompatibility of the material has been significantly improved, enabling the material to be applied to tissue repair and regeneration.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132140"},"PeriodicalIF":5.3,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of diamond nanoparticles on the performance of PEO coatings on zirconium: Microstructural, mechanical, corrosion, and tribological properties","authors":"Noori Mohsen ,&nbsp;Yousefpour Mardali ,&nbsp;Abdollah-Pour Hassan ,&nbsp;Pishbin Hassan","doi":"10.1016/j.surfcoat.2025.132139","DOIUrl":"10.1016/j.surfcoat.2025.132139","url":null,"abstract":"<div><div>This study investigates the effect of diamond nanoparticle concentrations (0.2, 0.5, and 0.8 g/L) on the performance of PEO coatings on zirconium substrates, focusing on their microstructural, mechanical, corrosion, and tribological properties. The results indicate that diamond nanoparticles filled the coating pores, reducing surface roughness and increasing deposition rates and coating thickness as the concentration increased. Despite these modifications, the phase composition remained unchanged due to the high melting point of the nanoparticles. The coating with 0.5 g/L nanoparticle concentration exhibited the highest hardness (12.64 GPa) and Young's modulus (245 GPa), representing a 405 % increase in hardness compared to pure zirconium. Electrochemical tests showed that the 0.5 g/L sample had the best corrosion resistance, acting as an effective barrier against corrosive agents, with a 99.54 % reduction in corrosion current density compared to pure zirconium. Furthermore, tribological analysis demonstrated improved wear resistance and lower friction, with the 0.5 g/L coating achieving the lowest coefficient of friction of 0.224. Overall, the incorporation of diamond nanoparticles significantly enhanced the corrosion, mechanical, and tribological properties of the coatings, with 0.5 g/L emerging as the most effective concentration based on quantitative results.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132139"},"PeriodicalIF":5.3,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative study on microstructure evolution of metamorphic layers induced by grinding and laser quenching in hardened AISI 52100 steel","authors":"Cong Mao ,&nbsp;Tianhui Zeng ,&nbsp;Yongle Hu ,&nbsp;Dejia Zhang ,&nbsp;Mingjun Zhang ,&nbsp;Wentao Wang ,&nbsp;Jun Gong ,&nbsp;Weidong Tang ,&nbsp;Yuanqiang Luo ,&nbsp;Z.M. Bi","doi":"10.1016/j.surfcoat.2025.132142","DOIUrl":"10.1016/j.surfcoat.2025.132142","url":null,"abstract":"<div><div>This study presents a comparative analysis of the similarities and differences in the microstructure characteristics between ground and laser-quenched metamorphic layers on the AISI 52100 steel, revealing the respective impacts of thermal and mechanical effects on the microstructure evolution of metamorphic layers (i.e. white layer (WL) and dark layer (DL)). The results show that both thermal and mechanical effects result in grain refinement within WL. However, the increase in the proportions of sub-grain boundaries (SGBs) and low-angle grain boundaries (LAGBs) is caused by the mechanical effect, irrespective of the thermal effect. Furthermore, in addition to the mechanical effect, the thermal effect is also responsible for increased dislocation density within WL. The thermal effect causes the partial dissolution of carbides, while the mechanical effect results in the deformation and refinement of carbides in WL. In the DL, the thermal effect coarsens grains through grain boundary migration, accompanied by forming carbides due to the precipitation of C atoms. The dislocation density and the proportions of SGBs are reduced. However, the influence of the mechanical effect on the microstructure alterations of the DL is negligible. The hardness of the ground WL is increased by approximately 49.1 %, and such an increase is attributed to three factors: solid solution strengthening due to thermal effect, dislocation strengthening due to mechanical effect, and grain boundary strengthening due to thermal and mechanical effects. The thermal effect results in the formation of over-tempered martensite in the subsurface layer, reducing the hardness of ground DL by approximately 35.4 %. The results provide theoretical guidance for controlling the generation or utilization of metamorphic layers on AISI 52100 steel.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132142"},"PeriodicalIF":5.3,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improving the corrosion resistance and mechanical properties of 2205 duplex stainless steel welded joints by laser cladding CoCrFeNiTiSi high-entropy alloys coating","authors":"Hua Yang ,&nbsp;Fengyuan Shu ,&nbsp;Jia Deng ,&nbsp;Xin Zhang ,&nbsp;YuZhong Ren ,&nbsp;Bing Lei ,&nbsp;Xin Yuan","doi":"10.1016/j.surfcoat.2025.132137","DOIUrl":"10.1016/j.surfcoat.2025.132137","url":null,"abstract":"<div><div>Laser cladded CoCrFeNiTiSi high-entropy alloy (HEA) coatings with excellent comprehensive properties and promising application potential were proposed to improve the corrosion resistance and mechanical properties of 2205 duplex stainless steel (DSS) metal inert gas (MIG) weld joints. The microstructure, the mechanical properties, and the corrosion resistance of the HEAs were investigated systematically by way of scanning electron microscope (SEM), transmission electron microscope (TEM), quasi-static tensile test, and electrochemical test, etc. The laser cladded coatings were composited of FCC and BCC phases and characterized by fine equiaxed grains. Microstructure evolution of cladded coatings was achieved through changing the input current during laser cladding process so as to manipulated the corrosion resistance and mechanical properties, whereas variation was hardly observed in the types of phases in the coatings. As compared with the WM, the pitting corrosion resistance of laser cladded weld metal (LCWM) was significantly improved, which should be attributed to the passivation effect of Cr element in HEA materials. The excellent mechanical properties of LCWM were supposed to be originated from the strengthening effect of refined grains and the formation of BCC phase hindering dislocation movement. Coatings obtained with input current of 340 A had presented the best pitting corrosion resistance while the coatings with input current of 380 A exhibited perfect combination of improved strength and enhanced ductility. The WM was entitled excellent pitting corrosion resistance by laser cladded HEA coatings whereas the traditional soften effect of HAZ was fortunately avoided, which gave birth to a comprehensive improvement in mechanical properties and corrosion resistance.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132137"},"PeriodicalIF":5.3,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure and performance insights in La modified carbon quantum dots-epoxy coating with efficiency corrosion and wear resistance","authors":"Qi Zeng ,&nbsp;Haitao Yin ,&nbsp;Qunfang Li ,&nbsp;Ihor I. Bulyk ,&nbsp;Zhixiang Wang ,&nbsp;Shengguo Zhou","doi":"10.1016/j.surfcoat.2025.132108","DOIUrl":"10.1016/j.surfcoat.2025.132108","url":null,"abstract":"<div><div>Epoxy resin is a very versatile material but has limited corrosion and wear resistance. Carbon quantum dots are a new type of corrosion inhibitor material with good dispersibility. In this paper, lanthanum nitrate, ethylenediamine and citric acid were mixed to prepare lanthanum‑nitrogen doped carbon quantum dots (La/N-CQDs) by a hydrothermal method, which could show good dispersion and compatibility in epoxy resin. Meanwhile, a series of La/N-CQDs modified La/N-CQDs@EP coatings with long-term corrosion resistance and friction reduction were successfully prepared on the NdFeB surface by spin-coating method. The results of electrochemical tests and tribological tests show that the La/N-CQDs doped EP composite coatings could effectively enhance the anti-corrosion and anti-wear protection to the NdFeB surface. The La/N-CQDs@EP composite coating doped with 2 wt% La/N-CQDs showed the lowest corrosion current density and remained the highest impedance modulus after 14 days of immersion in 3.5 wt% NaCl solution. While the La/N-CQDs@EP composite coating doped with 1.5 wt% La/N-CQDs possess relatively low friction coefficient and wear rate. The excellent corrosion protection and wear resistance of the La/N-CQDs@EP coatings were mainly due to the enhanced interfacial bonding, and improved the densification of the epoxy resin structure. These indicated that La/N-CQDs modified EP composite coatings could effectively control the corrosion and wear loss of NdFeB in some harsh environments.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132108"},"PeriodicalIF":5.3,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ellipsometric characterization of magnetron sputtered metal-dielectric-metal (MDM) multilayers for Optical Vernier Scale biosensors with ultra-high sensitivity and large dynamic range","authors":"Yun Zhang,&nbsp;May Thawda Phoo,&nbsp;Juan Antonio Zapien","doi":"10.1016/j.surfcoat.2025.132133","DOIUrl":"10.1016/j.surfcoat.2025.132133","url":null,"abstract":"<div><div>We provide a systematic investigation of the optical properties of a hybrid plasmonic–photonic Optical Vernier Scale (OVS) biosensor using multiple zero-reflection points (ZRPs) with ultra-low limit of detection (LoD) of ~10⁻⁸ refractive index unit (RIU) and large dynamic range of ~6 orders of magnitude in RIU sensing. The synergic collaboration of <em>p</em>- and <em>s</em>-polarized ZRPs results in the OVS operation mode that enables precise optical quantification of biomolecular interaction events based on the dynamic fitting of the sensing medium's refractive index changes. The optical model provides a quantitative description of the biosensor operation in terms of its structure and the parameterized dispersion properties of the constitutive silver (Ag) and aluminum nitride (AlN) layers, in the spectral range from 320 to 1690 nm, as well as the ability to follow the dynamic RIU changes in real-time during sensor functionalization and operation. The AlN thin films were first deposited on glass substrates by reactive magnetron sputtering from Al target under different Ar/N₂ gas ratios at room temperature. The optical constants, thickness, and surface roughness of the AlN thin films were then investigated using spectroscopic ellipsometry. It was found that the reactive gas flow ratio can control the optical properties of the AlN films. When the reactive gas ratio was adjusted from 30 % to 70 %, the refractive index (<em>n</em>) of the AlN thin films varied from 1.75 to 1.84 at a wavelength of 633 nm, the extinction coefficient (<em>k</em>) of the AlN samples varied from 0.005 to 0.05 at a wavelength of 233 nm, and the band gap <span><math><msub><mi>E</mi><mi>g</mi></msub></math></span>, defined where the extinction coefficient <em>k</em> &lt; 0.001, varies between 0 and 5.03 eV. Finally, the application of the AlN film in a metal-dielectric-metal (MDM) multilayer was investigated, showing unique spectral characteristics by total internal reflection ellipsometry measurements and used for the bio-detection of rabbit IgG with a LoD below 10 ng/mL. The demonstrated stability and reliability of our fitting method, coupled with the excellent sensitivity of the MDM multilayer structure, make this system highly competitive in the field of biosensing.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132133"},"PeriodicalIF":5.3,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on properties and tribological behaviors of silicon nitride-based Ti-DLC films","authors":"Xiaolong Wang ,&nbsp;Songhua Li ,&nbsp;Shengqi Fan ,&nbsp;Dantong Yu ,&nbsp;Jing Deng ,&nbsp;Chuang Zuo","doi":"10.1016/j.surfcoat.2025.132131","DOIUrl":"10.1016/j.surfcoat.2025.132131","url":null,"abstract":"<div><div>Silicon nitride is widely used in ceramic bearings. Silicon nitride-based Ti-DLC films with different low doped Ti content were prepared by multifunctional high frequency magnetron sputtering system, to expand the application of silicon nitride in aerospace and modern industry by improving its tribological properties. SEM, Raman, XPS and AFM were used to analyze the structure and composition of the films. The mechanical properties were measured by nanoindentation and scratch test. The tribological performances were studied at room temperature and the friction and wear mechanism was analyzed. Ti-DLC films with low doped Ti content present a dense amorphous structure. The content of sp³-C in Ti-DLC films increases first and then decreases, with the increase of doped Ti content. It means that the increase of doped Ti content improves the hardness, elastic modulus and the adhesion behaviors. Moreover, the increase of doped Ti content reduces friction coefficient and wear rate, which is beneficial to tribological performance. The tribological performances of silicon nitride-based Ti-DLC films are optimal when the doped Ti content is 0.64 at. %, and the average friction coefficient is as low as 0.006 which is close to super slippery and the wear rate is 3.68 × 10⁻⁷ mm³·N⁻¹·m⁻¹. The design prepared the ultra-low friction Ti-DLC film on the silicon nitride can reduce harmful friction losses, creating application possibilities of silicon nitride in harsh conditions. Particularly, it provides new ideas and technical support for the manufacture of self-lubricating silicon nitride bearings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132131"},"PeriodicalIF":5.3,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multifunctional Ag/MWCNT/HA coatings on Ti6Al4V alloy via plasma electrolytic oxidation: Enhanced electrochemical and antibacterial properties for dental implants","authors":"Mahendran Logesh,&nbsp;Han-Cheol Choe","doi":"10.1016/j.surfcoat.2025.132128","DOIUrl":"10.1016/j.surfcoat.2025.132128","url":null,"abstract":"<div><div>This study investigates an innovative surface modification approach for Ti6Al4V dental implants using plasma electrolytic oxidation (PEO) to create a multifunctional coating incorporating hydroxyapatite (HA), multi-walled carbon nanotubes (MWCNTs), and silver nanoparticles (Ag NPs). The research aims to enhance the implant's mechanical properties, corrosion resistance, and antibacterial efficacy. Various concentrations of Ag NPs were integrated into the coating to optimize performance. Surface characterization techniques, including field-emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and roughness measurements, were employed to analyze the coating's morphology and composition. Mechanical properties were assessed through nanoindentation tests. Corrosion behavior was evaluated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) in 0.9 % NaCl environment. The antibacterial activity was tested against <em>Escherichia coli</em>. Results demonstrate that the Ag/MWCNT/HA coating significantly improves surface characteristics, with the optimal Ag NP concentration enhancing corrosion resistance (<em>R</em>_<em>p</em> = 3.25 × 10¹⁵ Ω.cm²) and antibacterial performance. This innovative coating system shows promise for improving the longevity and success rate of dental implants.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132128"},"PeriodicalIF":5.3,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A facile synthesis of density-tunable ZnO nanorod-array on PVTF film for biomedical application","authors":"Siyuan Fan ,&nbsp;Xuzhao He ,&nbsp;Wenjian Weng ,&nbsp;Chengwei Wu ,&nbsp;Kui Cheng","doi":"10.1016/j.surfcoat.2025.132125","DOIUrl":"10.1016/j.surfcoat.2025.132125","url":null,"abstract":"<div><div>The nanotopological morphology of biomaterials plays a significant role in cytocompatibility. As a coating for tissue engineering implants, zinc oxide nanorod (ZNR) arrays are usually utilized as anti-adhesion layers for cells with relatively limited applications in regulating cytocompatibility such as cell adhesion and proliferation. In this study, ZNR arrays were loaded onto the surface of the poly (vinylidene fluoride-trifluoroethylene) (PVTF) substrate, and an embedding effect of molten PVTF on ZNR was achieved through high temperature capillary phenomenon. The embedding degree could be controlled by adjusting the C-axis orientation of ZNR arrays, thus allowing the construction of PVTF-ZNR composite films with varying nanorod distribution densities. The tunable surface nanotopology structure regulated the adhesion and proliferation behaviors of bone marrow mesenchymal stem cells (BMSCs), among which the surface nanostructure with a low nanorod distribution density was conducive to the spreading and proliferation of BMSCs. Furthermore, the nanostructure can detach from the surface after the early stage of adhesion and proliferation, ceasing to affect cellular behavior. The composite film is beneficial for tissue regeneration implants to promote cell adhesion and proliferation in early implantation. Additionally, it's promising in further repair due to the excellent piezoelectric property of PVTF.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132125"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}