Journal of Materials Science最新文献

{"title":"Enhancing the stability and photoluminescence of CsPbBr3 nanocrystals through Au nanoparticle integration","authors":"Heng Guo","doi":"10.1007/s10853-025-10727-7","DOIUrl":"10.1007/s10853-025-10727-7","url":null,"abstract":"<p>The meticulous design of the interaction between semiconductors and metals can significantly enhance the performance and stability of nano-luminescent materials, thereby expanding their broad application prospects. In this investigative endeavor, we have innovated a novel synthesis methodology that seamlessly integrates inorganic CsPbBr₃ perovskite nanocrystals (NCs) with gold nanoparticles (Au NPs). Photoluminescence analysis revealed that the emission intensity of the resultant Au-CsPbBr₃ hybrid NCs surpassed that of pristine CsPbBr₃ NCs. This enhancement was primarily ascribed to the localized surface plasmon resonance (LSPR) exhibited by the Au NPs. Furthermore, the Au-CsPbBr₃ hybrid NCs demonstrated remarkable stability, maintaining their excellent fluorescence properties even after exposure to natural environmental conditions for an extended duration. This simple and effective method of fabricating Au-CsPbBr₃ hybrid NCs offers exciting new avenues for optimizing optical properties and expanding the use of perovskite NCs in light-emitting diodes as well as a range of other optoelectronic devices.</p>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4615 - 4624"},"PeriodicalIF":3.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 molybdenum partitioning induced lattice strain and surface oxide chemistry on hydrogen permeation and corrosion behavior of Co-Mo coatings","authors":"G. Mohan Kumar,&nbsp;Akhand Pratap Singh,&nbsp;Shalini Anupindi,&nbsp;Chandan Srivastava","doi":"10.1007/s10853-025-10718-8","DOIUrl":"10.1007/s10853-025-10718-8","url":null,"abstract":"<div><p>Co-<i>X</i>Mo (<i>X</i> = 0, 1.5, 4, 8, 11) coatings were electrodeposited onto mild steel. Analysis of the electrochemical corrosion and hydrogen permeation behavior was conducted and correlated with the coating microstructure. All the Co-Mo coatings exhibited higher corrosion resistance than the pure Co coating. The corrosion resistance of the Co-Mo coatings, however, exhibited a non-monotonic trend with increase in molybdenum concentration, and at an optimum concentration of 4wt.% Mo, highest corrosion resistance was obtained. The polarization resistance values exhibited by pure Co, Co-4wt.% Mo, and Co-11wt.% Mo were 1491, 4968, and 2929 Ω cm², respectively. The highest corrosion resistance of Co-4wt.% Mo coating was due to lower coating strain and relatively stable passive oxide corrosion products (CoO and MoO₃). Conversely, the lowest corrosion resistance of pristine Co coating was due to higher coating strain and higher fraction of relatively less stable oxides (Co(OH)₂) after exposure to the corrosive media. The lowest and highest hydrogen permeation currents exhibited by Co-11wt.% Mo and Co-4wt.% Mo coatings were 5.6 and 10.3 μA/cm², respectively. The lowest hydrogen permeation through the Co-11wt.% Mo coating was due to compressive strain in the Co-Mo solids solution matrix (owing to the larger size of molybdenum atoms), which hindered hydrogen diffusion through the matrix. The higher hydrogen permeation through the Co-4wt.%Mo coating was due to the formation of relatively Mo-enriched clusters in the Co-Mo solid solution matrix, which produced tensile strain in the solid solution matrix near the matrix/cluster interface, thus providing a short-circuit path for hydrogen diffusion.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4764 - 4787"},"PeriodicalIF":3.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural and dielectric characteristics of CoFe2O4/nitrogen-enriched reduced graphene oxide composites via a one-pot solvothermal method","authors":"Pasupuleti Anil,&nbsp;V. V. Ravi Kanth Kumar,&nbsp;Bharath Chandran,&nbsp;N. Satyanarayana,&nbsp;R. Sai Prasad Goud","doi":"10.1007/s10853-025-10712-0","DOIUrl":"10.1007/s10853-025-10712-0","url":null,"abstract":"<div><p>A one-pot solvothermal method was employed to synthesise nanocrystalline CoFe₂O₄ (CFO) and CoFe₂O₄/Nitrogen-doped reduced graphene oxide (CFO/N-rGO) nanocomposites with varying graphene oxide (GO) contents ranging from 0 to 80 mg. Comprehensive structural analyses viz., X-ray diffraction (XRD), Fourier transform infrared (FTIR) studies,  high resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray analyses (EDX), and Raman spectroscopy confirmed the high purity of the nanocomposites, along with the presence of diverse functional groups and phonon modes associated with both GO and CoFe₂O₄. The XRD analysis revealed a crystallite size of approximately ~ 24 nm for the CFO/N-rGO80 composite. SEM imaging demonstrated the porous microstructure and agglomeration of ferrite nanoparticles. Raman spectroscopy identified distinct symmetric and asymmetric stretching modes corresponding to tetrahedral and octahedral cations, as well as new vibrational modes attributed to nitrogen-doped reduced graphene oxide (N-rGO) integration. X-ray photoelectron spectroscopy (XPS) detected Co⁺² and Fe⁺³ within the tetrahedral and octahedral sites of the ferrite lattice alongside nitrogen dopants on graphene oxide. Magnetic measurements revealed a gradual reduction in saturation magnetization (M_s) from 74.38 emu/g for the CFO sample (0 mg GO) to 68.40 emu/g for the CFO/N-rGO80 sample (80 mg GO). The improved dielectric properties of the CoFe₂O₄/Nitrogen-doped reduced graphene oxide (CFO/N-rGO) composite were examined through dielectric studies across a frequency range of 1 Hz to 20 MHz. The CFO/N-rGO80 composite demonstrated the highest dielectric constant (<i>ε</i>ʹ = 53.21) and dielectric loss (<i>ε</i>ʹʹ = 37.60) at 1 MHz, along with the maximum AC conductivity (<i>σ</i> = 2.10 × 10⁻³ Sm⁻¹). These results highlight the enhanced dielectric properties of the nanocomposites due to the incorporation of N-rGO into CFO, which could be a promising material for high dielectric energy storage and microwave-absorbing materials.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4687 - 4711"},"PeriodicalIF":3.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 barrier and corrosion protection properties of epoxy coatings by aminofunctionalized silica nanoparticles in epoxidized eucommia ulmoides gum/epoxy double crosslinked networks","authors":"Yongqin Wang,&nbsp;Mingyang Li,&nbsp;Yuzhu Xiong","doi":"10.1007/s10853-025-10690-3","DOIUrl":"10.1007/s10853-025-10690-3","url":null,"abstract":"<div><p>In this study, we prepared an epoxy resin-based coating characterized by a double crosslinked network, which exhibits superior mechanical and anti-corrosion properties. The nano-silica surface, modified by <i>N</i>-(2-aminoethyl)-3-aminopropyl trimethoxysilane (KH792), features an abundance of reactive groups. These groups interact with the reactive groups on the molecular chain segments of the adjacent coating matrix. Simultaneously, the epoxy groups in the epoxidized eucommia ulmoides gum (EEUG) are able to react with the curing agent, contributing to the formation of a denser three-dimensional crosslinked network within the coating. This interaction improves the coating’s mechanical properties, adhesion, and corrosion resistance. Furthermore, the nano-silica forms bonds with the hydroxyl groups on the metal substrate surface, improving the coating’s adhesion by increasing the number of bonding sites. The EP/EEUG coating, containing 5 wt% KH792-SiO₂, demonstrates the highest Shore hardness and exhibits exceptional adhesion strength of 11.09 MPa, which represents a 54.2% increase compared to the composite coating without nano-silica. This addition also leads to a higher crosslinking density, significantly improving the corrosion protection and tensile strength of the composite film. At a nano-silica concentration of 5 wt%, the composite coating shows the largest arc tolerance radius and the highest coating resistance, with an impedance value of 9.86 × 10⁹ Ω cm² after a 15-day immersion in a 3.5 wt% NaCl solution.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4625 - 4644"},"PeriodicalIF":3.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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-temperature compression behavior prediction of medium Mn steel: a comparative study of Arrhenius constitutive equation, machine learning, and symbolic regression models","authors":"Boyuan Huang,&nbsp;Zheyue Zhang,&nbsp;Shuai Zhao,&nbsp;Xufei Li,&nbsp;Renbo Song,&nbsp;Jianlin Sun","doi":"10.1007/s10853-025-10719-7","DOIUrl":"10.1007/s10853-025-10719-7","url":null,"abstract":"<div><p>This study aims to accurately predict the compression stress–strain curves of medium Mn steel under high-temperature conditions. The Arrhenius constitutive equation with Zener–Hollomon, machine learning (ML), and genetic programming-based symbolic regression (GP-SR) was used to construct a prediction model for the high-temperature compression properties of medium manganese steel. The prediction performance of the three models was fairly compared by using the leave-one-out cross-validation dataset partitioning method. The average R² value of the Arrhenius constitutive equation on the training set is 0.855, and the average RMSE value is 12.14MPa. The ML dataset was constructed using the equidistant point method, and a new feature “strain level” was introduced. Combining support vector regression (SVR) with eXtreme gradient boosting (XGBoost) improved model performance, increasing R² from 0.824 to 0.907 and reducing RMSE from 10.70 to 8.28 MPa. The GP-SR method, combined with optimized hyperparameters and multiple iterations, produced a highly effective predictive formula with an average R² of 0.942 and an average RMSE of 7.87 MPa, and it demonstrated significant advantages. Compared with the ML models, this formula has excellent interpretability. Therefore, the formula obtained using the GP-SR method achieves higher accuracy compared to traditional equations and models. It provides an accurate reference for predicting stress–strain curves and selecting hot working parameters in the hot working process of medium Mn steel.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4788 - 4807"},"PeriodicalIF":3.5,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene-based SERS-active substrates for environmental detection: nanoarchitectonics and applications","authors":"Ling Xin,&nbsp;Yibing Liu,&nbsp;Li Wang,&nbsp;Zhuang Li","doi":"10.1007/s10853-025-10731-x","DOIUrl":"10.1007/s10853-025-10731-x","url":null,"abstract":"<div><p>Surface-enhanced Raman scattering (SERS) has become a powerful tool for detecting various analytes, due to its extremely high sensitivity and identification capability. The introduction of graphene not only overcomes some inherent drawbacks of SERS but also exhibits good synergistic effects compared to traditional noble metal nanoparticle-enhanced substrates, thereby significantly improving the sensing performance of SERS and expanding its application field. In this work, the preparation, detection technology, and application progress of SERS substrates in environmental detection are mainly summarized for understanding the advancements in graphene-based SERS substrates. SERS detection technology such as molecular labeling, immunochromatography, microfluidics, molecularly imprinted polymers, and colorimetry is introduced, and the advantages and limitations of the technology are discussed. The focus is on summarizing the application of SERS in environmental detection, such as in the detection of pesticides, metal ions, and organic compounds. Our work will help to deeply understand the principles, advantages, and challenges of using SERS-active substrates for environmental detection. At the same time, it provides a reference for optimizing environmental detection technology, promoting their widespread applications, and improving detection accuracy.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4559 - 4592"},"PeriodicalIF":3.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the work hardening behavior of machining WNbMoTaZrx (x = 0.5 and 1.0) refractory high entropy alloys","authors":"Haidong Yang,&nbsp;Richeng Sheng,&nbsp;He Lin,&nbsp;Junsheng Zhang,&nbsp;Xiquan Xia,&nbsp;Shunhua Chen","doi":"10.1007/s10853-025-10740-w","DOIUrl":"10.1007/s10853-025-10740-w","url":null,"abstract":"<div><p>Tool wear and surface quality are significantly influenced by work hardening during machining. This work focused on the work hardening behavior during the machining of WNbMoTaZr_x (x = 0.5 and 1.0) refractory high entropy alloys (RHEAs). The effect of polycrystalline cubic boron nitride tool geometric parameters on cutting forces, Vickers hardness, and the microstructure of machined side surface of RHEAs was studied. It was found that the RHEAs showed different degrees of work hardening. Compared to WNbMoTaZr_0.5, the softer and tougher interdendrites of WNbMoTaZr_1.0 compressed the dendrite area under the grinding and squeezing effect of negative chamfering surface, which effectively reduced the degree of work hardening and led to the appearance of abnormal cutting forces. The changes of negative chamfer angles and tool corner radius also affected the degree and behavior of work hardening. In conclusion, RHEAs showed different work hardening behaviors, including dendrite refinement, dendrite breakage, and dendrite compression, which in turn resulted in different degrees of work hardening and increase in cutting force.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4883 - 4896"},"PeriodicalIF":3.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 innovative g-C3N4/SiO2/PDMS composite coating with photocatalytic NO purification and self-cleaning functions","authors":"Siyu Wu,&nbsp;Xiaoyu Yang,&nbsp;Xuejuan Cao,&nbsp;Xiangyu Wang,&nbsp;Mingxuan Huang,&nbsp;Lei Deng","doi":"10.1007/s10853-025-10723-x","DOIUrl":"10.1007/s10853-025-10723-x","url":null,"abstract":"<div><p>As a traditional photocatalyst, UV-responsive TiO₂ has been widely favored, but its light energy utilization is lower than that of g-C₃N₄ with a visible light response. However, the photogenerated carriers of g-C₃N₄ have a low separation efficiency. In this study, SiO₂ was utilized as a carrier to compound with TiO₂ and g-C₃N₄ to ameliorate these flaws and advance their photocatalytic function. FT-IR, SEM, AFM, UV–Vis DRS, and PL were used to examine the optical performance, surface structure, and appearance of the composites. Taking the compounding ratio of SiO₂ and photocatalysts as a variable, NO purification rate as the evaluation index of photocatalyst pollution purification effect, and water and oil contact angle as the evaluation index of hydrophobicity and oleophobicity of photocatalytic coatings, the photocatalysts of SiO₂:TiO₂ = 3:1 and SiO₂:g-C₃N₄ = 5:1 were discovered to have the best photocatalytic effect among the same series of materials, with the latter having the greatest impact. The coatings of SiO₂:TiO₂ = 5:1 and SiO₂:g-C₃N₄ = 5:1 combined with PDMS exhibited the best hydrophobicity and oleophobicity of the same series of coatings, with the latter having the greatest effect. By varying the PDMS percentage in the SiO₂:g-C₃N₄ = 5:1/PDMS coatings, the optimal SCN5-1/P coating with 75% PDMS content was finally obtained, which had NO purification rate of 38.43%, and water and oil contact angles of 131.86° and 135.16°. This work provides a preparation method for producing high-efficiency photocatalytic self-cleaning coatings, which will aid in the advancement of photocatalytic self-cleaning technology.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4645 - 4668"},"PeriodicalIF":3.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Thin-walled aluminium waste remelting in circulation circuit with magnetodynamic pump","authors":"Oleksiy Smirnov,&nbsp;Vladyslav Fikssen,&nbsp;Volodymyr Kukhar,&nbsp;Maksym Goryuk,&nbsp;Oleksandr Hrushko,&nbsp;Oleksandr Rud,&nbsp;Viktor Lomakin","doi":"10.1007/s10853-025-10737-5","DOIUrl":"10.1007/s10853-025-10737-5","url":null,"abstract":"","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4946 - 4947"},"PeriodicalIF":3.5,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-10737-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of pre-inoculation treatment on non-metallic micro-inclusion population and microstructure of spheroidal graphite irons","authors":"António Pires,&nbsp;Leander Michels,&nbsp;Sónia Simões,&nbsp;Cathrine Hartung,&nbsp;Emmanuelle Ott,&nbsp;Bente Kroka,&nbsp;Carlos Silva Ribeiro","doi":"10.1007/s10853-024-10570-2","DOIUrl":"10.1007/s10853-024-10570-2","url":null,"abstract":"<div><p>Producing high-quality spheroidal graphite irons has become challenging due to the need for high-quality raw materials. The iron-silicon-carbon alloy microstructure is influenced by the non-metallic micro-inclusions (microparticles) dispersed in the melt that can act as exogenous nucleation sites for graphite during solidification. For that, ferrosilicon alloys with specially selected active elements are often added to the melt to modify those micro-inclusions during the production of this material. In this context, the present study investigates the effect of a (Zr, Al, Ca)-ferrosilicon on micro-inclusion dispersion and microstructure of spheroidal graphite irons, as a pre-inoculation addition, where the sulfur and oxygen activity are the highest. The micro-inclusions were analyzed based on their chemical composition, area fraction, number density, and size distribution. The data suggests that the oxide population is greatly affected by coarsening of the oxide inclusions when the melt is pre-inoculated. Furthermore, the pre-inoculation treatment leads to the formation of more complex multiphase inclusions. Graphite nucleus types were statistically reported, and the results show that they are mainly sulfides and nitrides.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 10","pages":"4727 - 4746"},"PeriodicalIF":3.5,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-024-10570-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143622277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}