Journal of Materials Science & Technology最新文献

{"title":"2D/2D COF/MOF S-Scheme heterojunction boosts photocatalytic H2 evolution","authors":"Xiaoya Ren, Kaihui Huang, Yixin Wei, Meng Cai, Mengjie Li, Rongchen Shen, Xin Li, Guosheng Shao, Fujun Miao","doi":"10.1016/j.jmst.2025.09.038","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.038","url":null,"abstract":"Covalent organic frameworks (COFs) hold great promise for photocatalysis; however, their activity for photocatalytic hydrogen evolution is frequently hindered by the critical limitation of rapid charge recombination. Herein, we report an S-scheme MOF/COF heterojunction synthesized through a facile in-situ growth approach. This architecture was evaluated for its photocatalytic hydrogen production performance. This innovative S-scheme heterojunction architecture synergistically improves light harvesting, enhances redox capability, and facilitates effective separation and transport of photogenerated charge carriers and exciton dissociation, thus significantly boosting photocatalytic hydrogen evolution activity. Under optimal conditions, the COF/MOF S-Scheme heterojunction exhibits a maximum photocatalytic hydrogen production rate of 276.01 mmol g⁻¹ h⁻¹, representing a 2.24-fold improvement over the parent COF. Comprehensive mechanistic studies, including in-situ XPS and femtosecond transient absorption spectroscopy, elucidate the S-scheme charge transfer pathway and promote charge separation dynamics, while the strategic integration of Ni metal nodes with Pt cocatalysts simultaneously optimizes charge transfer and active sites. These findings offer valuable insights for precisely designing various kinds of COF-based S-scheme heterojunctions, advancing sustainable solar-to-hydrogen energy conversion.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"120 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209476","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":"Triple junction kinetics: Unified atomic mechanism and coordinated grain boundary network evolution","authors":"Yingbin Chen, Xiaohong Shao, Guohua Fan, Ming Wen, Ze Zhang, Jiangwei Wang","doi":"10.1016/j.jmst.2025.08.065","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.065","url":null,"abstract":"Triple junctions (TJs), as essential components connecting adjoining grain boundaries (GBs), govern the coordinated evolution of the entire GB network in polycrystalline materials under thermomechanical stimulations. Despite decades of research, a comprehensive understanding of TJ kinetics and their contributions to coordinated GB network evolution remains largely elusive, especially in experiments at the atomic scale. Using state-of-the-art <em>in situ</em> nanofabrication-nanomechanical testing with atomic resolution, we present direct evidence that multiple modes of TJ kinetics occur through conservative/non-conservative disconnection activities across neighboring GBs in Au and Pt polycrystals. TJ kinetics can transform mutually between conservative and non-conservative modes, holding significance for enhancing the deformation flexibility and sustaining plasticity of the overall GB network. A unified framework of TJ kinetics is further established by considering the coupling between GB plasticity, intragranular plasticity, and TJ excess volume. These findings are applicable to general TJs with non-coaxial GBs, providing a missing cornerstone for understanding the plasticity of polycrystalline materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"1 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209477","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":"Rotary bending fatigue behavior of maraging steel with an anisotropic gradient nanostructured surface layer","authors":"Z.M. Niu, Y.B. Lei, Y.Y. Liu, B. Gao, Y.T. Sun, Z.B. Wang","doi":"10.1016/j.jmst.2025.08.066","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.066","url":null,"abstract":"Surface modifications are imperative approaches to promote the fatigue performance of maraging steels, which typically possess high surface notch sensitivity. In this study, a gradient microstructured surface layer with nanolaminates and anisotropic mechanical properties was manufactured on an 18% Ni maraging steel by surface mechanical grinding treatment (SMGT). Rotary bending fatigue tests demonstrated that the fatigue performance of SMGT samples is significantly promoted, with an increase of ∼31% in the fatigue limit relative to as-received samples. Investigations of fatigue mechanisms indicated that the promoted fatigue performance is first related to the enhanced strength and hardness in the gradient nanostructured surface layer. Meanwhile, the anisotropic microstructure and mechanical properties of nanolaminates also play decisive roles in significantly enhancing the fatigue performance under high stress amplitudes. This is because the nanolaminates might not only suppress the growth of surface defects by hindering dislocation transmission along the normal direction, but also depress the damage accumulation in microstructure by accommodating dislocation slide along the rolling and transverse directions during fatigue.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"189 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209475","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":"Enhancing bonding strength and oxidation resistance of high-temperature silicone composite coatings using submicron low-melting glass powder","authors":"Tongjun Zhao, Shasha Yang, Zehao Chen, Yao Du, Jinlong Wang, Minghui Chen, Shenglong Zhu, Fuhui Wang","doi":"10.1016/j.jmst.2025.07.077","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.077","url":null,"abstract":"This study comparatively investigated the influence of micron low-melting glass (LMG) powder and submicron LMG powder on the bonding strength and oxidation resistance of high-temperature silicone composite coatings. Compared with the micron counterpart, submicron LMG powder reduced porosity, enhancing the structural integrity and cohesive strength of the coating. At high temperatures, the thermo-oxidative decomposition of silicone resin generated numerous cavities within the coating. At 650 °C, LMG powder underwent viscosity softening, transitioning into a viscous flow regime. Under capillary forces, the viscous LMG phase infiltrated surrounding cavities, followed by coalescence. The uniform distribution of submicron LMG powder within the coating promoted the formation of a homogeneous LMG phase, thereby establishing a barrier effect on oxygen ingress. Hence, at 650 °C, the silicone composite coating formulated with submicron LMG powder, Al flakes and other heat-resistant pigments exhibited superior oxidation resistance. Moreover, owing to the higher bond energy of covalent bonds formed by the glass network compared to the secondary bonds formed by the decomposed silicone resin, the cohesive strength of the coating containing submicron LMG powder increased from 2.11 MPa to 2.61 MPa.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"35 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195182","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":"Multifunctional paper-based platform with CuCo2O4 nanozyme and MB/N-Mo2C composites for dual-mode detection of inflammatory biomarkers","authors":"Shichang Liu, Puhua Hao, Shicheng Qiu, Yan Yu","doi":"10.1016/j.jmst.2025.09.039","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.039","url":null,"abstract":"C-reactive protein (CRP) is a critical biomarker for inflammation, extensively utilized in clinical diagnostics, especially in orthopedics for monitoring inflammation and assessing treatment efficacy. Developing portable and cost-effective methods for CRP detection is essential for facilitating point-of-care diagnostics in clinical practice. In this study, we developed a portable, dual-modal paper-based microfluidic device designed for the selective and highly sensitive detection of CRP in human serum. This innovative platform employs molecular imprinting technology, utilizing CRP as a template to synthesize molecularly imprinted polymers (MIPs) that create selective recognition sites on the surface of the material. The MIPs are combined with methylene blue (MB)-modified N-Mo₂C and peroxidase-like CuCo₂O₄ nanozyme, enabling both electrochemical and colorimetric sensing. Additionally, a rotating valve is incorporated into the device to control the flow direction of reagents, preventing interference between the sensing pathways. Our results demonstrate that the platform exhibits excellent selectivity, repeatability, and stability for CRP detection. Further testing with real samples confirmed the reliability and practicality of this method. This system offers a portable, rapid, and reliable approach to CRP detection, with significant potential for point-of-care diagnostics. Moreover, it presents a promising tool for the early diagnosis and monitoring of orthopedic inflammation, particularly in resource-limited environments.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"5 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203991","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":"Effect of initial thickness on bendability and inhomogeneous deformation of Mg alloy plates","authors":"Weijie Ren, Wenyu Du, Huagui Huang, Shuyang Qin, Jingna Sun, Pengfei Wang, Renlong Xin","doi":"10.1016/j.jmst.2025.09.030","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.030","url":null,"abstract":"Plate thickness plays a critical role in engineering applications by directly influencing the forming behavior of materials. Magnesium (Mg) alloys undergo significant bending deformation during forming processes, making it essential to understand the thickness effect on their bending behavior. In this study, three-point bending tests were conducted on AZ31 Mg alloy plates with thicknesses ranging from 1 to 12 mm (denoted as T1–T12) at room temperature. In-situ digital image correlation (DIC) was employed to capture the heterogeneous strain fields and spatial distribution of the neutral layer, while electron backscatter diffraction (EBSD) was used to analyze the gradient microstructure along the thickness. A crystal plasticity finite element method (CPFEM) was applied to correlate bending behavior with plate thickness. Combined experimental and simulation results reveal that bendability, gradient strain, twinning behavior, neutral layer shift, and cross-sectional distortion are strongly thickness-dependent. Notably, medium-thick plates exhibit a unique wing-shaped distribution of strain and twinning at the intrados, leading to non-uniform neutral layer displacement. The CPFEM successfully captures the thickness-dependent bendability and heterogeneous deformation, and the underlying mechanisms are thoroughly discussed. This study provides valuable insights for improving the stamping performance of Mg alloy plates and the precision of straightening and forming processes.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"62 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203993","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":"Simultaneously enhancing strength and plasticity in AlMoNbTaTiZr refractory high-entropy alloys via powder metallurgy","authors":"Naonao Gao, Xiping Cui, Xu Tang, Yuanyuan Zhang, Weihang Lu, Zhiqi Wang, Hao Ding, Guanghui Cong, Xiangxin Zhai, Wei Li, Xuecong Zhang, Lin Geng, Lujun Huang","doi":"10.1016/j.jmst.2025.07.078","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.078","url":null,"abstract":"This study presented a powder metallurgy (PM) strategy combining mechanical alloying (MA) and spark plasma sintering (SPS) for fabricating the high-performance AlMoNbTaTiZr refractory high-entropy alloys (RHEAs), which are composed of BCC phases, ordered B2 phases and grain boundary Al₄Zr₅ intermetallics. By optimizing ball milling processes, SPS sintering temperatures, and Al/Zr content, a relatively high content of B2 phase with a high degree of structural ordering and desired discontinuous Al₄Zr₅ intermetallics at grain boundaries was achieved. And it was noteworthy that the average grain size of AlMo_0.5NbTa_0.5TiZr RHEA was only 14.8 μm, an order of magnitude smaller than that of as-cast AlMo_0.5NbTa_0.5TiZr RHEA. These endowed the PM AlMo_0.5NbTa_0.5TiZr RHEAs with a low density (7.4 g/cm³) and significantly improved mechanical properties, especially at 1000°C, with the yield strength of 853 MPa and compressive strength of 929 MPa. Moreover, with a decrease in the content of Al and Zr elements, the yield strength, fracture strength and fracture strain at room temperature for the present PM Al_0.5Mo_0.5NbTa_0.5TiZr_0.5 RHEA were up to 2408 MPa, 2783 MPa and 20.8%, which were approximately 400 MPa and 108% higher than that of as-cast AlMo_0.5NbTa_0.5TiZr RHEA, respectively. More importantly, the specific strengths of present PM AlMo_0.5NbTa_0.5TiZr and Al_0.5Mo_0.5NbTa_0.5TiZr_0.5 RHEAs were far higher than that of publicly reported Ni-based superalloys, particularly above 1000°C, having a potential for partial substitution of conventional Ni-based superalloys to meet the dual demands for aerospace’s weight reduction and performance improvement. Finally, the microstructure evolution characteristics and strengthening-toughening mechanisms of PM AlMo_0.5NbTa_0.5TiZr RHEAs were discussed.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"18 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203977","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":"Iron single atoms anchored on hierarchically porous carbon spheres as separator coating for high-performance magnesium-sulfur batteries","authors":"Fan Zhang, Nan Jiang, Zhengyuan Gao, Shijiao Sun, Zhirong Zhao-Karger, Xiangyu Zhao","doi":"10.1016/j.jmst.2025.09.033","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.033","url":null,"abstract":"Magnesium-sulfur (Mg–S) batteries have attracted increasing interest owing to their high theoretical energy density, intrinsic safety, and cost advantages. However, their practical deployment is hindered by several challenges, including the sluggish redox kinetics of sulfur species, severe polysulfide shuttle effects, and poor cycling stability. Herein, we report a separator modification strategy using single-atom iron anchored on hierarchically porous nitrogen-doped carbon nanospheres (Fe–NC) as a multifunctional interlayer. This Fe–NC coating functions both as a physical barrier to suppress polysulfide diffusion and as a catalytic interface offering abundant active sites for strong chemisorption and accelerated conversion of magnesium polysulfides (MgPSs), as evidenced by comprehensive structural, spectroscopic, and electrochemical analyses. Mg–S cells with Fe–NC-modified separators exhibit markedly enhanced electrochemical performance over those with pristine glass fiber (GF) separators, achieving an initial discharge capacity of 741 mAh g⁻¹ at 0.1 C and maintaining 248 mAh g⁻¹ after 150 cycles at 0.5 C. This work highlights the promise of atomic-level catalyst design for functional separator engineering toward high-performance Mg–S batteries.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"24 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195212","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":"Synergistic effects of interstitial elements and TiB to overcome strength-ductility trade-off in titanium matrix composites","authors":"Zekun Zheng, Zhaohui Zhang, Jiaying Chen, Xuezhe Zhang, Junjie Xu, Chengze Liu, Yongqing Fu, Jingchuan Zhu, Longlong Dong, Lai-Chang Zhang","doi":"10.1016/j.jmst.2025.09.040","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.040","url":null,"abstract":"High-strength titanium matrix composites commonly show an inherent strength-ductility trade-off dilemma, which restricts their wide-range applications. Herein, we achieved synergistic strengthening of Ti-6Al-4V matrix composites by interstitial C, N, and TiB via powder metallurgy and obtained ultra-high tensile strength (1510±5 MPa) and good elongation (8.7%±0.3%). In situ-formed TiB promotes equiaxialization of matrix grains, hinders grain growth, and provides numerous nucleation sites for dynamically recrystallized grains. By evaluating the distribution of interstitial C and N in the Ti-6Al-4V matrix and their effect on the stability of the TiB/Ti interface, first-principles calculation results demonstrated that C and N tend to occupy the octahedral interstitial positions in α-Ti, thus inducing lattice distortion and significantly enhancing the (001)_TiB/(0001)_α-Ti interfacial strength. In addition, quasi-in-situ electron backscatter diffraction under tensile tests revealed the influences of interstitial C and N on the deformation mechanism of the composites. Interstitial C and N promote the activation of &lt;<em>c</em>+<em>a</em>&gt; dislocations in composites and increase the proportion of pyramidal &lt;<em>c</em>+<em>a</em>&gt; slip systems. The simultaneous activation of multiple slip systems is the primary factor in improving the composite’s ductility. Experimental and theoretical calculation results in this work provide a new strategy for designing and fabricating ultra-high-strength titanium matrix composites without sacrificing their ductility.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"3 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195181","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":"Low-density and high-modulus steel achieved by hypereutectic TiB2 and high Al ferrite phase","authors":"Jikui Liu, Yizhuang Li, Qianduo Zhuang, Mingxin Huang, Wei Xu","doi":"10.1016/j.jmst.2025.09.036","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.036","url":null,"abstract":"High-aluminum low-density steels have been extensively studied due to their potential for lightweight and energy-saving applications. However, high aluminum content causes severe problems, such as a marked reduction in Young’s modulus and also carbide-induced challenges in casting and processing. This study aims to tackle these issues by advancing the concept of lightweight steels, offering a new class of carbon-free, austenite-based low-density triplex steel. This novel approach enables the utilization of ceramic and δ-ferrite to achieve an optimal balance of physical properties (low density and high Young’s modulus) and mechanical properties. Specifically, using conventional cost-effective steel fabrication routes, we produced an as-hot-rolled heterogeneous microstructure characterized by a fully equiaxed-austenitic matrix embedded with elongated δ-ferrite bands and micron-sized TiB₂ particles. Physically, this new low-density steel achieves an impressively low density of 6.88 g cm⁻³ while preserving a high Young’s modulus of 225 GPa, resulting in a high specific modulus. Mechanically, this new steel shows nearly a 100% increase in yield strength compared to the conventional Fe-TiB₂ steel, while retaining good ductility. The improved strength-ductility balance is attributed to the dual roles of δ-ferrite and its associated microstructural heterogeneity: the high dislocation density in δ-ferrite strengthens the steel through the composite effect, and the soft/hard phase contrast between δ-ferrite and austenite promotes additional strain hardening via the generation of geometrically necessary dislocations. This work presents a viable approach to producing low-density, stiff, strong, and ductile steels on a large scale for cost-effective lightweight applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"42 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195209","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}