Surface & Coatings Technology最新文献

{"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}

{"title":"High entropy oxide thin films of (HfNbTaTiZr)Ox by pulsed laser deposition","authors":"Muhamad Jalu Purnomo ,&nbsp;Yu-Chieh Lee ,&nbsp;Ching-An Huang ,&nbsp;Ing-Song Yu","doi":"10.1016/j.surfcoat.2025.132129","DOIUrl":"10.1016/j.surfcoat.2025.132129","url":null,"abstract":"<div><div>In recent years, high entropy oxide (HEO) thin films have attracted significant attention due to their exceptional physical, chemical and mechanical properties. Concurrently, pulsed laser deposition (PLD) has emerged as a prominent technique for thin film fabrication, especially for the ceramic materials. This study focuses on the synthesis of (HfNbTaTiZr)O_x thin films on silicon substrates, which was conducted by a 248 nm laser ablation on a high entropy alloy target of HfNbTaTiZr in a high vacuum chamber. A comprehensive suite of analytical techniques was employed to assess the films' morphological characteristics, chemical composition, microstructural, optical and mechanical properties. Morphological analysis conducted through scanning electron microscopy and atomic force microscopy revealed an ultra-smooth and uniform surfaces of thin films. X-ray photoelectron spectroscopy provided detailed insights into the films' chemical state, confirming the oxide layer with five elements of Hf, Nb, Ta, Ti and Zr, namely (HfNbTaTiZr)O_x. Moreover, post-annealing process at different temperatures was carried out for the amorphous (HfNbTaTiZr)O_x film. The microstructures of (HfNbTaTiZr)O_x thin films were investigated by X-ray diffraction and transmission electron microscopy. The surface morphology and phase transformation of (HfNbTaTiZr)O_x thin films were observed after annealing from 700 to 850 °C. Finally, their optical and mechanical properties of (HfNbTaTiZr)O_x thin films, were analyzed by spectroscopic ellipsometry and nanoindentation test, respectively. In this report, we have first illustrated an advanced PLD approach to fabricate an ultra-smooth HEO thin film of (HfNbTaTiZr)O_x, which could be a potential functional material for a wide range of applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"505 ","pages":"Article 132129"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776411","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":"ZnO:(B, Ga)/Au electrodes for improved Ohmic contacts on ultrawide-bandgap Ga2O3 films","authors":"Haofei Huang ,&nbsp;Hengzhi Xing ,&nbsp;Wei Zhang ,&nbsp;Shilin Wang ,&nbsp;Ke Tang ,&nbsp;Lujun Wang ,&nbsp;Lulu Wang ,&nbsp;Zhichao Qian ,&nbsp;Jian Huang ,&nbsp;Linjun Wang","doi":"10.1016/j.surfcoat.2025.132127","DOIUrl":"10.1016/j.surfcoat.2025.132127","url":null,"abstract":"<div><div>Gallium oxide (Ga₂O₃) is an ultrawide-bandgap semiconductor material known for its high breakdown field strength, large Baliga's figure of merit, and significant thermal and chemical stability, making it suitable for advanced technological applications. In this paper, Ga₂O₃ films were prepared using radio-frequency (RF) magnetron sputtering. B and Ga co-doped ZnO (BGZO)/Au composite electrodes were developed to achieve improved Ohmic contact characteristics with Ga₂O₃ films, comparing these results with those of widely used Ti/Au electrodes. The specific contact resistance of the electrodes was quantitatively measured using the dot circular transmission line model (d-CTLM) method. The results indicate that the presence of BGZO intermediate semiconductor layers (ISL) with appropriate thickness effectively reduces the specific contact resistance between the electrode and the Ga₂O₃ film, and the minimum specific contact resistance value is 1.049 × 10⁻² Ω·cm². This research provides critical insights into optimizing electrode to enhance the performance and reliability of Ga₂O₃-based devices.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132127"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792436","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":"Ex-situ observation of microstructure evolution and electrical resistance transition in micro joints under electron current stressing","authors":"Yi-An Wu ,&nbsp;Zhao-Yu Yang ,&nbsp;Pei-Chia Hsu ,&nbsp;Chih-Ming Chen ,&nbsp;Yu-An Shen ,&nbsp;Cheng-En Ho","doi":"10.1016/j.surfcoat.2025.132124","DOIUrl":"10.1016/j.surfcoat.2025.132124","url":null,"abstract":"<div><div>Micro joint fabrication is a prevalent technology for microelectronic industry and the joint electrical and mechanical integrities significantly impact the electronic package reliability. In this study, the transitions in electrical resistance and crystallographic characteristics (grain orientation and size) of micro joints upon electron current stressing was characterized using an ohmmeter and an electron backscatter diffraction analysis system equipped in a field-emission scanning electron microscope. A significant decrease (approximately 7 %) in the joint electrical resistance accompanied with β-Sn grain reorientation and grain boundary elimination was induced in a few hours of the current stressing test. Mayadas-Shatzkes (M-S) model was employed to evaluate the contribution of grain boundary characteristics to the resistance drop, and revealed that approximately 85 % resistance drop was caused by the Sn grain reorientation and the remaining part (approximately 15 %) was by the grain boundary elimination. This quantitative analysis advanced the fundamental understanding of micro-joint characteristics in electrical transition induced by electromigration. Finally, a mitigation strategy of electromigration-induced β-Sn crystallographic and electrical transitions was proposed in this study.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"505 ","pages":"Article 132124"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785260","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":"Enhancement of high-temperature stability of solar absorber coatings on metallic substrates through diffusion barriers","authors":"C.I. Parra-Montero ,&nbsp;T.C. Rojas ,&nbsp;R. Escobar-Galindo ,&nbsp;J.C. Sánchez-López","doi":"10.1016/j.surfcoat.2025.132120","DOIUrl":"10.1016/j.surfcoat.2025.132120","url":null,"abstract":"<div><div>The high-temperature stability of solar absorber paints is critical for the efficiency of concentrating solar power systems, particularly central towers operating at ∼800 °C, where ion interdiffusion at the coating/substrate interface is significant. This work examines the effect of a diffusion barrier (DB) formed by controlled surface oxidation of stainless steel 316L (SS316) and Inconel 625 (INC625) at 800 °C to improve the thermal stability and optical performance. A CrAlSiN/AlSiO solar absorber tandem structure was deposited on oxidized and unoxidized substrates, with their stability compared after annealing at 800 °C for 2 h. The presence of the DB layer resulted in improved thermal stability and optical performance, with post-annealing absorptance values of 0.953 (SS316) and 0.949 (INC625), surpassing those of the reference samples, without the diffusion barrier (0.932 and 0.901, respectively). Microstructural and spectroscopic analyses confirmed the effectiveness of the DB, highlighting its potential for advanced concentrating solar power applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"507 ","pages":"Article 132120"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823740","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":"Reconstructed oxide scale driving fracture behavior to improve cold spray bonding","authors":"Xiao-Xue Dong,&nbsp;Mei-Jun Liu,&nbsp;Xiao-Tao Luo,&nbsp;Guan-Jun Yang,&nbsp;Chang-Jiu Li","doi":"10.1016/j.surfcoat.2025.132123","DOIUrl":"10.1016/j.surfcoat.2025.132123","url":null,"abstract":"<div><div>Cold spraying is a promising technology for biomedical and aerospace applications, yet weak inter-particle bonding remains a critical limitation to coating quality. This study introduces a novel approach to enhance interfacial bonding by reconstructing the oxide scale on titanium alloy powders. The reconstructed oxide scale features a loose and more friable structure that facilitates controlled fracture during particle impact, exposing more fresh metallic surfaces and enabling more metallurgical bonding. AC-STEM and interfacial analyses reveal that this reconstructed oxide scale significantly reduces the barrier effect of surface oxides, promoting stronger inter-particle bonding. Bond strength tests confirm substantial improvements in coating performance, demonstrating the potential of oxide scale reconstruction as an innovative strategy to optimize cold-sprayed coatings. These findings offer valuable insights into surface engineering for enhancing interfacial properties and advancing cold spray technology.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132123"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807444","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":"Engineered porous bio-ceramic coating with antibacterial and excellent biocompatibility on the surface of low modulus multi-component titanium alloy","authors":"Hong Wu ,&nbsp;Ziqing Duan ,&nbsp;Luxin Liang ,&nbsp;Gen Li ,&nbsp;Qingge Wang ,&nbsp;Jingbo Liu ,&nbsp;Aqsa Kanwal ,&nbsp;Bing Wang ,&nbsp;Cuie Wen ,&nbsp;Lin Bo","doi":"10.1016/j.surfcoat.2025.132121","DOIUrl":"10.1016/j.surfcoat.2025.132121","url":null,"abstract":"<div><div>In order to integrate biomimetic porous structure with bioactive metal elements, a novel containing-Ag/Mg coating was developed on the surface of Ti-Nb-Zr-Mg (TNZM) alloy with low modulus using micro-arc oxidation (MAO) technology. The thickness of MAO coating with dual-layered structure gradually decreases with the increase of AgNO₃ concentration in the electrolyte. The inner layer in the MAO coating comprising basal elemental oxides (TiO₂, Nb₂O₅, ZrO₂, and MgO) shows high degree of density and continuity. In contrast, the outer layer in the MAO coating exhibits a morphology typical of a volcanic pile pore surface. In addition to having the same metal oxides as the inner layer, the outer layer also contains hydroxyapatite Ca, P, Ag and O. The MAO coatings provide barrier protection, the ranking for corrosion rate from low to high is: MAO-2 &lt; MAO-3 &lt; MAO-1 &lt; TNZM. The antibacterial rate of MAO-3 against <em>E. coli</em> is as high as 100 %. Meanwhile, the porous structure and released Ca/P/Mg synergistically regulate early osteoblast attachment and activity. This result indicates that the Mg and Ag sustained-release bionic MAO coating has excellent corrosion resistance, antibacterial properties, and cytocompatibility. Engineered porous bio-ceramic coating has potential application prospects in the field of bone implantation.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132121"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807445","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":"Pioneering work for the implementation of the inverted fireball technology for more effective PVD magnetron sputtering","authors":"M. Fenker ,&nbsp;G.T. Eichenhofer ,&nbsp;D. Baeurer ,&nbsp;J. Gruenwald ,&nbsp;M. Oberberg ,&nbsp;J. Albrecht ,&nbsp;H. Kaßner","doi":"10.1016/j.surfcoat.2025.132119","DOIUrl":"10.1016/j.surfcoat.2025.132119","url":null,"abstract":"<div><div>Inverted fireballs (IFBs) represent a groundbreaking advance in plasma physics, offering a new level of control over plasma density and surface modification capabilities. Despite their remarkable potential, the integration of IFBs with established industrial processes remains a significant challenge. Here, we demonstrate the first successful incorporation of an IFB configuration into a magnetron sputtering system, marking a crucial breakthrough in plasma-assisted coating technology.</div><div>Using titanium deposition onto high-speed steel as a model system, we investigated plasma parameters and resulting film properties. Multipole resonance probe measurements revealed plasma densities reaching 1 × 10¹⁶ m⁻³, while optical emission spectroscopy provided insights into the plasma composition. The IFB-assisted magnetron sputtering process yielded films with significantly enhanced mechanical properties, particularly increased hardness, compared to conventional magnetron sputtering.</div><div>This advance overcomes the previous limitations of IFB technology, which was restricted to DC or AC discharges and gaseous precursors. This new approach, using a magnetron sputtering source and an IFB, enables its application with solid precursors and metal-based plasmas. Our results establish a new paradigm for plasma-assisted coating processes, offering improved efficiency and enhanced technological possibilities for industrial applications. This innovative combination of IFB and magnetron sputtering technologies opens new avenues for advanced materials processing and surface engineering.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"505 ","pages":"Article 132119"},"PeriodicalIF":5.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776422","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":"Impact of non-uniform CMAS deposition and penetration on the performance degradation of a film-cooled vane with TBCs under a hot streak condition","authors":"Li Shi,&nbsp;Changce Wang,&nbsp;Xiao Tan,&nbsp;Siqi Liao,&nbsp;Zhixuan Deng,&nbsp;Rongli Deng,&nbsp;Jiasheng Song","doi":"10.1016/j.surfcoat.2025.132118","DOIUrl":"10.1016/j.surfcoat.2025.132118","url":null,"abstract":"<div><div>This paper presents a model and computational method to analyze the impact of CMAS deposition and penetration on the aerodynamic performance, cooling efficiency, and stress evolution of a film-cooled turbine vane under a hot streak condition. The results indicate that the insulation effect of the deposit layer enhances the vane's cooling efficiency as it thickens, leading to reduced temperatures within the coating and a decreased CMAS penetration rate. However, CMAS penetration increases the thermal conductivity of the coating, thereby diminishing its insulation effectiveness. After 1500 h of deposition, the CMAS penetration coefficient decreases by 11.8 %, while the thermal conductivity of the top coat (TC) increases by 8.93 %. Cooling efficiency improves by 2.1 % after 1500 h due to deposition, but this effect diminishes to 1.06 % because of CMAS penetration. Additionally, the thermally grown oxide (TGO) increases from 1.0 μm to 1.729 μm after 1500 h, and further to 1.761 μm with CMAS penetration. CMAS penetration results in a maximum stress increase of 34 MPa in the TGO after 1500 h, indicating significant stress accumulation in the TGO, followed by the bond coat (BC) and top coat (TC).</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132118"},"PeriodicalIF":5.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792435","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":"Micro-arc oxidation treatment applied on the surface of β TiNb matrix composites as a strategy to modulate cellular behavior","authors":"Vinícius Richieri Manso Gonçalves ,&nbsp;Diego Rafael Nespeque Corrêa ,&nbsp;Giovana Collombaro Cardoso ,&nbsp;Gerson Santos de Almeida ,&nbsp;Willian Fernando Zambuzzi ,&nbsp;Conrado Ramos Moreira Afonso ,&nbsp;Paulo Noronha Lisboa-Filho ,&nbsp;Carlos Roberto Grandini","doi":"10.1016/j.surfcoat.2025.132113","DOIUrl":"10.1016/j.surfcoat.2025.132113","url":null,"abstract":"<div><div>Large bone injuries require long-term implant materials with multifunctional properties. While β-type Ti<img>Nb alloys offer a reduced elastic modulus closer to bone stiffness, metallic materials remain susceptible to degradation under friction in corrosive environments, such as articulating joints exposed to body fluids. In this context, Ti-based matrix composites (TMCs) have emerged as promising alternatives, as β Ti<img>Nb matrices reinforced with TiC and/or TiB precipitates have recently demonstrated superior tribocorrosion resistance compared to unreinforced β Ti<img>Nb alloys, while maintaining low elastic moduli. The current study focuses on enhancing the biological properties of β-TMCs through surface micro-arc oxidation (MAO) treatment. An electrolyte enriched with Ca-, P-, and Mg-based compounds was used to generate bioactive porous oxide coatings. X-ray photoelectron spectroscopy (XPS) revealed Ca/P ratios close to 1.67 in all MAO coatings, while high-resolution spectra identified phosphate functional groups and calcium carbonate, indicating favorable compositions for bone regeneration. TiB and TiC may have formed volatile oxides such as B₂O₃ and CO₂, whereas only B₂O₃ was detected in the XPS results. Furthermore, TiB in the substrate refined pore sizes to below 1 μm² and increased MAO coating thickness to over 11 μm, although neither TiB nor TiC affected the anatase-to-rutile ratio. In vitro cellular assays demonstrated that MAO-treated β-TMCs facilitate osteoblast proliferation due to their controlled porous surface structure and biomimetic composition. These findings support β-TMCs as promising candidates for biomedical applications, with MAO treatment serving as an effective strategy for enhancing biological performance. Further preclinical studies are required to validate their clinical potential.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"506 ","pages":"Article 132113"},"PeriodicalIF":5.3,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792437","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}