Journal of Materials Science & Technology最新文献

{"title":"The dynamics and mechanics during in situ spark plasma sintering of commercial/recyclable mixed aluminum powder: A four-dimensional quantitative study","authors":"Peng Chen, Xiaodong Cheng, Rengeng Li, Hao Wu, Guohua Fan","doi":"10.1016/j.jmst.2025.04.078","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.078","url":null,"abstract":"One of the critical challenges in additive manufacturing or powder metallurgy is the efficient reuse of metallic powders, particularly those exhibiting surface oxidation or irregular shapes. In the present study, we attempted to address this challenge by utilizing time-resolved three-dimensional imaging of the traditional sintering process. Specifically, a mixture of recycled elongated aluminum alloy powder and spherical commercial aluminum alloy powder was selected as the raw materials. The in situ sintering process was observed in four dimensions (time plus) using laboratory X-ray microscopy, integrated with a self-designed spark plasma sintering apparatus. Both the powder morphology and surface oxygen doping were characterized, with a focus on their impact on pore evolution and sintering kinetics. Through qualitative and quantitative analyses, the relationship between the dynamics of the sintering neck and both oxygen doping and sintering mechanics was established. Notably, the dynamic sintering behavior can be accurately predicted based on the transient changes in the morphology of the sintering neck. The present study therefore provides a comprehensive four-dimensional quantitative analysis and is expected to advance the understanding of the effects of powder morphology and oxygen doping on the kinetics of spark plasma sintering of metallic powders.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"243 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144371083","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":"Regulator-induced defective functionalization of MOFs: Efficient recovery of gold ions from wastewater","authors":"Zhiwei Wang, Zhengshen Bao, Xingliang Wang, Changqing Xia, Dehong Xu, Shixing Wang, Weili Li","doi":"10.1016/j.jmst.2025.04.080","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.080","url":null,"abstract":"Given the scarcity of precious metals in nature and the high costs of extraction and refinement, their recovery holds significant practical importance. In this study, we employed an induced-defect strategy to prepare a novel metal-organic framework material, UiO-67-MAA, using a one-step solvent method that exhibited rapid adsorption kinetics and ultra-high adsorption capacity. In addition, the ability of the material to recover Au(III) from aqueous solutions was evaluated through systematic adsorption experiments. Various characterisation methods were employed to verify the successful synthesis and structural stability of UiO-67-MAA. The maximum adsorption capacity of UiO-67-MAA for Au(III) reaches 814 mg/g. In repeated experiments, the removal effect of UiO-67-MAA on Au(III) remained significant even after five cycles. The adsorption mechanism was analysed by X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDS), confirming that S atoms interact with Au(III) to form a stable coordination structure. These results indicate that UiO-67-MAA possesses efficient adsorption properties for Au(III), thus demonstrating its significant potential for application in precious metal recovery.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"26 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370793","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":"Antibacterial and photocatalytic PVDF foam for simultaneous interface evaporation and water purification","authors":"Yu Du, Xiao Yang, Ting Wu, Yingying Chen, Heng Xie, Shupeng Wang, Zhiyong Chang","doi":"10.1016/j.jmst.2025.04.077","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.077","url":null,"abstract":"Water evaporation and purification have been extensively employed as a viable approach to address the global freshwater crisis. However, the capacity of evaporators to procure potable freshwater from seawater, sewage, and other aqueous environments is limited by challenging conditions. Herein, self-floating PVDF/TiO₂/GO foam with micro/nanostructure (MNPFG) and interconnected vapor escape channels is prepared economically and efficiently by combining compression molding and spray coating. The surface micro/nanostructures and inherent properties of PVDF allow the MNPFG to maintain a robust superhydrophobic state under dynamic impacts, extreme temperatures, and acidic, alkaline, or saline solutions, demonstrating a contact angle of 158° and a rolling angle of 9°. The combination of superoxide ions, photothermal effect, and physical puncture effect inhibits bacterial growth and reproduction, resulting in remarkable antibacterial activity (99.9%) against <em>Escherichia coli</em>. Moreover, the MNPFG exhibits catalytic and degradation rates of 0.019 min^–1 and 99%, respectively. The MNPFG with self-cleaning, antibacterial, and catalytic degradation properties is sufficient for simultaneous interface evaporation and water purification, with the purified water meeting the freshwater standards set by the World Health Organization without any detectable organic or microbial residues. The proposed approach offers an industrialized methodology for the large-scale production of solar evaporators suitable for freshwater generation and purification.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"45 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337536","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":"Twin-rich Ag coatings by additive rotary spray deposition manufacturing: Current-carrying friction machining to construct nanolamellar structures","authors":"Dexin Chen, Jiebin Du, Mingchong Lu, Jiamin Fang, Wei Li, Zhongxiao Song, Zhixin Kang, Xiaopei Li, Jun Sun","doi":"10.1016/j.jmst.2025.06.007","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.007","url":null,"abstract":"In this study, a self-developed additive manufacturing technique, known as rotary spray deposition, was employed to uniformly deposit twin-rich Ag coatings onto Cu surfaces. The impact of the key deposition parameters, including spray distance, flow rate, and duration, on the surface morphology and thickness of the Ag coatings was meticulously investigated to achieve exceptionally high-quality coatings. These coatings exhibited a low resistivity of 1.711 × 10<ce:sup loc=\"post\">−8</ce:sup> Ω m and a high hardness of 145 HV, which was attributable to the high-density twins and stacking faults (SFs) induced by the rotary spray deposition process. Subsequently, nanolamellar structures were produced on the trilayers under extreme machining conditions of current-carrying friction, aided by the use of lubricating oil (polyalphaolefin). The tribological behavior and wear mechanisms of the Ag coatings were systematically examined to determine the optimal load and current parameters for the effective formation of nanolamellar structures within the optimally worn subsurface microstructures. The primary formation mechanism was identified as sliding-induced dynamic deformation, characterized by high strain rates and strain gradients during the current-carrying friction machining process. Moreover, the nanolamellar structures demonstrated a remarkable ability to absorb the stress and strain arising from the current-carrying friction process, thereby enhancing the wear resistance of the Ag coatings. As a result, this technique is anticipated to pave new pathways for the development of nanolamellar structures and high-strength metallic materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"25 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341086","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":"Atomic-level design of artificial superoxide dismutase with exceptional substrate specificity","authors":"Fengxian Zhang, Ruohan Yu, Min Qi, Yutong Ye, Zhi Chen, Cao Li, Zechao Zhuang, Yi Liu, Minmin Liang, Dingsheng Wang, Ziqiang Xu","doi":"10.1016/j.jmst.2025.05.038","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.038","url":null,"abstract":"Nanomaterial-based artificial enzymes can rival the activity of natural enzymes. However, their substrate specificity remains insufficient, which limits their practical applications in catalytic therapies. Herein, we combine atomic-precise synthesis with the philosophy of enzyme mimicry to successfully fabricate a single-atom manganese nanozyme (Mn-SAzyme) that structurally mimics the active center of natural Mn superoxide dismutases (SOD) with high precision. X-ray absorption spectroscopy experiments confirm a high structural similarity of the coordination shell of Mn centers in both Mn-SAzyme and natural SOD, including their elemental composition, coordination number, and bond length. As expected, Mn-SAzyme exhibits excellent SOD-like activity while showing negligible peroxidase, catalase, oxidase, or glutathione peroxidase-like activity, indicating its remarkable substrate specificity identical to that of natural SOD. Furthermore, it demonstrates promising therapeutic effects against acute kidney injury by eliminating reactive oxygen species and supplying SOD activity. Therefore, mimicking the active sites of natural enzymes at the atomic level creates unprecedented opportunities for developing nanozymes with superior substrate specificity and expanding the practical applications of enzymatic therapy.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"12 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341087","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":"Terminally functionalized polymer electrolytes with enhanced interfacial compatibility for robust solid-state lithium metal batteries","authors":"Zhiyuan Lin, Yunhang Li, Wenbin Zhang, Guanghua Guo, Weihan Chen, Li Zhang, Shanran Yang, Yonggao Xia, Guofa Cai","doi":"10.1016/j.jmst.2025.04.075","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.075","url":null,"abstract":"Solid-state lithium metal batteries (SSLMBs) with high-voltage cathodes offer significant potential for next-generation energy storage but face challenges related to poor oxidative stability and interfacial incompatibility of polymer electrolytes (PEs). Herein, terminally functionalized polymer electrolytes (TFPEs) with chain polymer backbones were designed to enhance the antioxidation resistance and interfacial compatibility. Introduced the electron-withdrawing group of isocyanate (–NCO) at the end of the polymer chain to eliminate the end hydroxy (–OH), which can enhance the interfacial compatibility and antioxidative decomposition capacity for PEs. The terminally functionalized poly (1,6-hexanediol) carbonate diols polymer electrolytes (TFPCDL) deliver good electrochemical stability, wide electrochemical stability window (4.7 V), and high ionic conductivity (3.75 × 10⁻⁴ S cm⁻¹ at 25°C). Batteries employing TFPCDL demonstrated stable cycling performance with 88% capacity retention after 100 cycles when charged to 4.5 V. This work not only highlights a promising strategy for designing antioxidative PEs but also accelerates the practical application of SSLMBs with advanced cathode materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"175 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337533","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":"Research progress in solid-state hydrogen storage alloys: A review","authors":"Kang Chen, Mei Yi Lau, Xinyuan Luo, Jiani Huang, Liuzhang Ouyang, Xu-Sheng Yang","doi":"10.1016/j.jmst.2025.05.037","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.037","url":null,"abstract":"Promoting the widespread utilization of hydrogen energy, supported by efficient storage and conversion technologies, represents a pivotal strategy for addressing global energy and environmental challenges. Among these technologies, the development of compact, safe, and economically viable hydrogen storage (abbreviated as H-storage) solutions is essential for advancing a hydrogen-based economy. Conventional technologies, such as compressed gaseous hydrogen and cryogenic liquid hydrogen, face limitations including safety concerns, high energy consumption, and significant evaporation losses. In comparison, metal hydride-based storage offers a promising alternative by enabling hydrogen to form stable compounds with metals under moderate conditions, thereby improving safety and hydrogen density (H-density). The review provides a comprehensive analysis of recent advances in the most appealing solid-state hydrogen storage alloys (HSAs), with a focus on their de-/hydrogenation properties and cycling stability. Key materials discussed include V-based body-centered cubic (BCC) HSAs, Mg-based crystalline and amorphous HSAs, and multi-component alloys—either employed as used as standalone H-storage materials or as multifunctional catalysts to improve hydrogen kinetics of Mg-based materials. The review begins by examining synthesis methods for HSAs. Afterwards, the review summarizes and discusses the H-storage properties of the above HSAs, with a particular emphasis on their de-/hydriding kinetics, thermodynamics, and cycling performance. In addition to highlighting the latest advancements of solid-state HSAs in the field of hydrogen energy, the remaining challenges and prospects of the emerging research are also discussed.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"24 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341107","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":"Revealing the impact of valence electron concentration on precipitation and tensile behavior of a FeMnCoCr-based high-entropy alloy","authors":"Xinyu Wang, Lifang Sun, Zhufeng He, Dongxu Shi, Shuang Jiang, Jialong Tian, Mingwei Zhu, Nan Jia","doi":"10.1016/j.jmst.2025.05.036","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.036","url":null,"abstract":"This study systematically investigated the tensile behavior of the face-centered cubic high-entropy alloys (HEAs) with the composition of (Fe₅₀Mn₃₀Co₁₀Cr₁₀)₉₆₋₄<em>_x</em>Ni₄<em>_x</em>Al₂Ti₂ (<em>x</em> = 3, 5, 8, at.%). Special attention is given to the effect of valence electron concentration (VEC) that increases from 7.7 to 8.0 and finally to 8.3 for the three alloys on their precipitation behavior, deformation mechanism, and mechanical property. For the different alloys, after aging treatment, L1₂ and B2/7M precipitates form within grains and along grain boundaries, respectively. With increasing VEC, the size and volume fraction of precipitates increase monotonically. The L1₂ precipitate evolves from a single rod-like morphology to a mixture of rod-like and spherical morphologies, while the B2 phase gradually transfers into the 7M martensite, resulting in an enhanced precipitation-induced strengthening. The plastic deformation mechanism associated with precipitation transfers from dislocation bypass in the alloy with a VEC of 7.7 to dislocation cutting through spherical L1₂ particles in those with higher VECs of 8.0 and 8.3. As the volume fraction of spherical precipitates increases, their interaction with dislocations becomes more pronounced, promoting uniform plastic deformation. The (Fe₅₀Mn₃₀Co₁₀Cr₁₀)₆₄Ni₃₂Al₂Ti₂ alloy with the highest VEC exhibits optimal mechanical properties, with its yield strength increasing from 269 to 655 MPa during aging while maintaining a uniform elongation of 21%. Especially, the work hardening rate dramatically increases from 1944 to 3456 MPa at 0.1 true strain. The significant improvement in yield strength is attributed to the synergistic strengthening from L1₂ precipitates and 7M martensite, whereas the excellent work hardening capability results from the frequent interaction between dislocations, as well as the transformation of the 7M martensite into the B2 phase during deformation. These findings provide guidance for the design and development of precipitation-strengthened HEAs with high strength and good ductility.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"7 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337534","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":"An all-fiber Janus film with multi-band synergistic optical modulation for long-term efficient thermal management","authors":"Peng Yang, Zhiyuan Zong, Yipeng Wu, Zhengcai Xia, Liang Chen, Shaochun Tang","doi":"10.1016/j.jmst.2025.04.076","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.076","url":null,"abstract":"Radiative cooling and solar heating are recognized as green and sustainable passive thermal management technologies that can significantly reduce global energy and environmental burdens. However, current thermal management materials are usually based on single-band optical modulation and rely on the involvement of inorganic nanoparticles, making them less effective for coping with long-lasting dynamic seasonal and weather changes. A comprehensive investigation into the overall CO₂ mitigation potential remains lacking. Herein, an all-fiber fabric with integrated heating and cooling functions is developed for long-term and efficient thermal management. The cooling layer composed of PVDF-HFP/PDMS hybrid microfibers allows maximum scattering of sunlight leading to ultrahigh reflectance of 98.9%, while the heating layer, composed of carbon nanofibers, minimized scattered sunlight and attenuated infrared vibrations. This fabric allows switchable solar reflectance (97%) and IR emittance (25%) by flipping, resulting in ∼5.8°C sub-ambient cooling and ∼35.2°C super-ambient heating under ∼73 mW/cm². Furthermore, it has a higher annual energy savings of ∼13.0 MJ/(m²·year) in midlatitude regions compared to conventional concrete, and achieves CO₂ reductions of 6.3–27.9 kg-CO₂eq over its service life. The all-fiber structure offers high adaptability to practical application environments and presents a promising solution in zero-energy thermal management in dynamic and multifarious complex scenarios.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"632 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337535","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":"Large-bandgap gallium selenide photodetectors and their application in anti-interference optoelectronic imaging and optical communications","authors":"Huanrong Liang, Degao Xu, Yu Chen, Yuhang Ma, Xinyi Guan, Zhaoqiang Zheng, Wenjing Huang, Jiandong Yao, Gang Ouyang, Guowei Yang","doi":"10.1016/j.jmst.2025.04.074","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.04.074","url":null,"abstract":"The exploration of novel materials stands as the linchpin in the advancement of the next-generation photodetectors. Group III-VI compound semiconductors have attracted extensive research enthusiasm due to their numerous advantages, including simple crystal structure, environmentally friendly composition, and outstanding air stability. Nevertheless, the exploration of the optoelectronic properties of Ga₂Se₃ remains relatively scarce to date as compared to other group III-VI compound semiconductors, primarily hampered by the challenges in synthesis. As an endeavor, this study has embarked on an exhaustive exploration of the physical and optoelectronic attributes of Ga₂Se₃ from both theoretical and experimental aspects. Initiating with an in-depth analysis on the electronic structure through systematical first-principles calculations, this study has determined that Ga₂Se₃ bears a sizable bandgap up to ≈ 1.96 eV as well as an optimal carrier mobility of ≈ 7081.97 cm² V⁻¹ s⁻¹. In addition, the carrier transport has been revealed to be highly anisotropy, making it compelling in multifunctional optoelectronic devices. Following this, a two-step synthetic methodology has been formulated to achieve the preparation of Ga₂Se₃. Notably, the corresponding Ga₂Se₃-based photodetector exhibits distinct photoresponse to 405 nm violet light, boasting a responsivity of 0.326 mA/W, an external quantum efficiency of 0.1%, and a specific detectivity of 8.73 × 10⁹ Jones. Furthermore, the Ga₂Se₃ photodetectors have been used as the sensing components to realize proof-of-concept optoelectronic imaging and optical communication applications, demonstrating exceptional anti-interference capability to white light interference. In the end, polarization-resolved photoresponse has been unveiled. On the whole, this study provides a new material platform and a distinct pathway for broadening the horizons of optoelectronic research.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"17 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144335393","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}