Materialia最新文献

{"title":"Advanced BioS ceramics with integrated optical thermometry for smart scaffolds","authors":"Cláudio Yamamoto Morassuti ,&nbsp;Karina Feliciano Santos ,&nbsp;Gláucia Oliveira Guimarães ,&nbsp;Luis Humberto da Cunha Andrade ,&nbsp;Sandro Márcio Lima ,&nbsp;Jorge Vicente Lopes Silva ,&nbsp;Marco Antônio Sabino ,&nbsp;Fernando Ely ,&nbsp;Juliana Kelmy Macário Barboza Daguano","doi":"10.1016/j.mtla.2025.102386","DOIUrl":"10.1016/j.mtla.2025.102386","url":null,"abstract":"<div><div>This study reports the development of a smart scaffold with photothermal properties designed for 3D tissue engineering platforms. BioS scaffolds were fabricated via 3D printing (NS), sintered (S), and analyzed to assess the incorporation and behavior of Egyptian blue (EB) powder within a ceramic matrix. X-ray diffraction (XRD) confirmed the successful synthesis of EB. The EB powder was thoroughly characterized for its photothermal properties, exhibiting strong optical absorption and photoluminescence, making it a promising candidate for optical thermometry. Fourier transform infrared spectroscopy (FTIR) revealed structural differences between NS- and S-scaffolds following 3D printing. High-temperature sintering of BioS ceramic paste with EB densified the material and potentially induced phase transformations. Micro-computed tomography (µCT) analysis of grain size distribution indicated structural modifications between NS- and S-scaffolds. XRD identified calcium and sodium silicate as the predominant phases, with shifts in EB diffraction peaks after sintering. Scanning electron microscopy (SEM) revealed significant surface morphology changes, corroborating the µCT and XRD findings. The near-infrared (NIR) emission band of EB was utilized to develop a novel strategy for a ratiometric fluorescence thermometer based on a single emission band (²B₂g→²B₁ g). The EB powder exhibited a maximum relative sensitivity of 0.45% K^-1 at 293 K, while the NS- and S-scaffolds demonstrated sensitivities of 0.39% K^-1 and 0.30% K^-1, respectively. Hemolysis assays confirmed the hemocompatibility of the scaffolds, with red blood cell lysis below 1%. These findings support the safe application of these smart scaffolds in cell culture and biomedical research. Overall, this study provides new insights into developing a more physiologically relevant environment for <em>in vitro</em> cell culture assays by demonstrating the feasibility of integrating photoluminescent and thermosensitive properties– key features of smart materials–into biocompatible ceramic scaffolds. This approach advances the potential for real-time, <em>in vitro</em> monitoring and evaluation in biomedical applications.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"40 ","pages":"Article 102386"},"PeriodicalIF":3.0,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143683609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic deformation response of maraging steel 250 produced through directed energy deposition: Deformation behavior and constitutive model","authors":"Lulu Guo ,&nbsp;Lina Zhang ,&nbsp;Joel Andersson ,&nbsp;Olanrewaju Ojo","doi":"10.1016/j.mtla.2025.102383","DOIUrl":"10.1016/j.mtla.2025.102383","url":null,"abstract":"<div><div>This study investigates the dynamic deformation response of maraging steel 250 (MS250) produced through directed energy deposition-arc (DED-Arc) across various strain rates and temperatures, aiming to develop constitutive models for reliable finite element simulations. Analytical transmission electron microscopy and scanning electron microscopy are subsequently performed to better understand the effects of microstructure features of DED-Arc built MS250 on their dynamic deformation behaviors. Experimental results reveal the variable thermal softening effects and combined impacts of strain rate and strain on the dynamic mechanical performance of as-deposited specimens. The heat-treated DED-Arc MS250 exhibits the synergistic influences of strain and strain rate, along with joint impacts of temperature and strain rate in its deformation characteristics in high-temperature regimes. Conventional Johnson-Cook models fail to capture these effects, causing discrepancies between predicted and experimental data for as-built and heat-treated DED-Arc MS250 alloys. In contrast, modified Johnson-Cook models tailored for each condition align closely with experimental results. Verification tests conducted under new impact conditions further validate the enhanced predictive capabilities of the modified models. Besides, as-deposited MS250 steel shows inferior flow stress and energy absorption, but post-fabrication heat treatment significantly improves its dynamic mechanical performance. The heat treatment also improves the resistance of heat-treated DED-Arc MS250 steel to forming adiabatic shear bands during room temperature impact tests, in comparison with the as-built condition. This improvement is associated with the formation of nano-sized, coherent, needle-shaped Ni₃Mo precipitates, which balance strength and ductility.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"40 ","pages":"Article 102383"},"PeriodicalIF":3.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epitaxial growth mechanism and structural characterization of spinel-type LixMn2O4 electrodes realized via pulsed laser deposition","authors":"S. Sanna ,&nbsp;P. Orgiani ,&nbsp;O. Krymskaya ,&nbsp;D. Di Castro ,&nbsp;A. Galdi ,&nbsp;M. Tkalčević ,&nbsp;C. Aruta ,&nbsp;A. Tebano","doi":"10.1016/j.mtla.2025.102382","DOIUrl":"10.1016/j.mtla.2025.102382","url":null,"abstract":"<div><div>Spinel-type lithium manganese oxide (LiMn₂O₄) is considered one of the most promising cathode materials for rechargeable batteries due to its high operating voltage, reduced toxicity, and lower cost compared to cobalt-based cathodes. However, the stability of LiMn₂O₄ is a significant challenge, as it tends to degrade over time, with manganese ion segregation leading to a reduction in battery capacity.</div><div>The crystal structure of Li_xMn₂O₄ is highly dependent on the lithium content (x), and it can exist either in a single-phase or a two-phase form. These structural variations significantly affect the material's electrochemical performance. In this work, we present the growth and structural characterization of Li_xMn₂O₄ thin films, with (x) values of 1 and 0.7, aimed at improving chemical stability and overall performance.</div><div>The epitaxial Li_xMn₂O₄ films were deposited using Pulsed Laser Deposition on different single-crystal substrates, including water-soluble Sr₃Al₂O₆-buffered SrTiO₃(100). Films grown on MgO(001) for both <em>x</em> = 1 and <em>x</em> = 0.7 exhibited excellent crystallographic quality, while films deposited on SrTiO₃(001) showed good quality for <em>x</em> = 1, albeit with a slightly higher mosaic spread compared to those on MgO. Notably, for <em>x</em> = 0.7, a two-phase region was observed on the SrTiO₃ and MgO substrates, where both phases shared the same structure but differed slightly in lattice parameters.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102382"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of hyperglycemia and resveratrol on the processes of implant osseointegration and peri-implant bone remodeling: Revealed by non-linear analysis","authors":"Robert S. Liddell ,&nbsp;Suzette Guo ,&nbsp;Anthony Staibano ,&nbsp;John E. Davies","doi":"10.1016/j.mtla.2025.102371","DOIUrl":"10.1016/j.mtla.2025.102371","url":null,"abstract":"<div><div>Hyperglycemia is detrimental to bone healing and quality. Oral administration of resveratrol may have protective effects on bone repair. This study investigated the impact of resveratrol on the bone anchorage of microtopographic or nanotopographic implants placed in the tibiae of hyperglycemic and euglycemic rats.</div><div>Blood glucose, body weight, and implant removal torque were measured. Anchorage during the process of osseointegration, and later bone remodeling, were quantified by fitting a biphasic asymptotic curve. We hypothesized that resveratrol would enhance the process of osseointegration and reverse the detrimental effects of hyperglycemia.</div><div>Hyperglycemic animals had elevated blood sugar levels and reduced weight gain; neither affected by resveratrol. Nanotopographic implant removal torque was increased by 1.2 times (<em>p</em> = 0.0002, 95 % CI [1.1,1.3]) compared to microtopographic implants. At 84 days, linear modeling indicated that the untreated hyperglycemic groups’ removal torque values were half of the untreated euglycemic groups’ (<em>p</em> = 0.0005, 95 % CI [0.3,0.8]). This reduction in anchorage is associated with less virtual distal implant drift. Resveratrol treatment increased anchorage in hyperglycemic rats by 1.8 times (<em>p</em> = 0.005, 95 % CI [1.1,2.8]), returning measurements to euglycemic levels.</div><div>Higher bone anchorage was seen for nanotopographic implants, compared to microtopographic implants during the process of osseointegration, but the nanotopographic surface provided no further advantage during bone remodeling. The hyperglycemic condition significantly reduced bone anchorage at later time points, which was eradicated by resveratrol administration. These results may be explained by hyperglycemia and resveratrol disrupting and recovering microcirculation respectively, indicating that resveratrol affects microcirculation rather than the process of bone remodeling.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102371"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editors for Materialia","authors":"","doi":"10.1016/S2589-1529(25)00054-7","DOIUrl":"10.1016/S2589-1529(25)00054-7","url":null,"abstract":"","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102387"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laser-directed energy deposition as a promising dissimilar joining technique: A case study on SS316L and IN718 with CoCrFeNi-based fillers","authors":"Raj Patel ,&nbsp;Shengbiao Zhang ,&nbsp;Jiaqi Dong ,&nbsp;Marcus H. Hansen ,&nbsp;Wen Chen ,&nbsp;Kelvin Y. Xie","doi":"10.1016/j.mtla.2025.102381","DOIUrl":"10.1016/j.mtla.2025.102381","url":null,"abstract":"<div><div>Dissimilar metal joining is widely used in the automotive and aerospace industries for weight reduction and alloy integration. In this study, CoCrFeNi high-entropy alloy (HEA) and CoCrFeNi +TiB₂ were employed as fillers to join stainless steel 316 L and Inconel 718 using laser-directed energy deposition (L-DED). The rapid cooling and localized melting in <span>L</span>-DED suppressed intermixing, interdiffusion, and the formation of large brittle intermetallics while leading to negligible heat-affected zone. The addition of TiB₂ microparticles to the CoCrFeNi HEA filler refined the microstructure and improved mechanical properties. TiB₂, acting as a reactive inoculant, decomposed during the process to form Cr-rich and Ti-rich inter-dendritic cellular structures, enhancing the hardness and tensile strength of the weld zone, and the ductility of the joined parts. The combined use of <span>L</span>-DED and reactive inoculants demonstrates the potential to expand material options for dissimilar metal joining, enabling stronger and tougher weld zones for advanced engineering applications.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102381"},"PeriodicalIF":3.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of oxygen vacancies on dielectric properties and phase transition of rutile-type (TiVCrNbTa)O2","authors":"Jian Guo ,&nbsp;Siwen Yu ,&nbsp;Chengyi Chu ,&nbsp;Jianguo Pan ,&nbsp;Peiling Ke ,&nbsp;Gongjun Zhang ,&nbsp;Aihua Sun","doi":"10.1016/j.mtla.2025.102380","DOIUrl":"10.1016/j.mtla.2025.102380","url":null,"abstract":"<div><div>High-entropy ceramics (HECs) are a novel category of multicomponent ceramics featuring significant atomic-scale disorder. This unique structure preserves the intrinsic properties of individual elements while enabling their interactions to generate intriguing phenomena. In this study, single-phase and dual-phase (TiVCrNbTa)O₂ high-entropy oxide ceramics (HEOs) were fabricated via a straightforward sintering process. The synthesis of single-phase HEOs with a pure rutile structure was achieved at 1400 °C by altering the sintering atmosphere from air to argon. The single-phase (TiVCrNbTa)O₂ HEOs exhibited remarkable dielectric properties, with dielectric constants (∼5) and dielectric loss attain the order of 10^–3 in the frequency range of 2–4 GHz. The dual-phase (TiVCrNbTa)O₂ HEOs also have approximate dielectric properties and exhibit excellent thermal stability from room temperature to 1200 °C under the air atmosphere. A new single-phase and dual-phase HEOs was successfully synthesized, and their dielectric properties as well as thermal stability meet the requirements of wave-transparent materials.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102380"},"PeriodicalIF":3.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-throughput characterisation of the long-term ageing of an A357+1wt%Cu cast aluminium alloy using temperature gradient","authors":"Thomas Perrin ,&nbsp;Arthur Després ,&nbsp;Pierre Heugue ,&nbsp;Alexis Deschamps ,&nbsp;Frédéric De Geuser","doi":"10.1016/j.mtla.2025.102378","DOIUrl":"10.1016/j.mtla.2025.102378","url":null,"abstract":"<div><div>A357 alloy is a widely studied cast aluminium alloy used in applications such as cylinder heads or aerospace applications. The addition of 1wt% copper to this alloy modifies the nanometric precipitation sequence and improves heat resistance. Thermal ageing resistance is a critical property for such applications and the ability to predict the end of life of these products is crucial. In this study, we investigate the effect of long-term ageing on an A357+1wt%Cu alloy. We have developed a combinatorial approach to gather sufficient data to model the evolution of mechanical properties during extended ageing. Samples have been aged in a temperature gradient for durations up to 10,000 h and then characterised using space-resolved Small- and Wide-Angle X-ray Scattering (SAXS &amp; WAXS), as well as hardness mapping. Complementary Transmission Electron Microscopy (TEM) observations were also performed. Finally, a simple approach based on time-temperature equivalence is implemented to predict the evolution of the mechanical properties and the nanometric precipitation during long-term ageing.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102378"},"PeriodicalIF":3.0,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnesophilic Cu (110) facet enables highly reversible Mg stripping/plating","authors":"Yating Tang ,&nbsp;Baihua Qu ,&nbsp;Dong Wang ,&nbsp;Yuhang Chen ,&nbsp;Yue Hao ,&nbsp;Jili Yue ,&nbsp;Guangsheng Huang ,&nbsp;Qian Li ,&nbsp;Jingfeng Wang ,&nbsp;Xianhua Chen ,&nbsp;Fusheng Pan","doi":"10.1016/j.mtla.2025.102377","DOIUrl":"10.1016/j.mtla.2025.102377","url":null,"abstract":"<div><div>The rechargeable magnesium batteries (RMBs) present compelling alternatives to lithium-ion batteries (LIBs), offering not only high capacity but also the advantage of free of dendrite formation of magnesium (Mg) anode. However, challenges arise from the instability in Mg deposition under extreme high current density conditions. Here, a facile chemical treatment with sodium formate (HCOONa) is reported for obtaining oxidation-resistant and magnesiophilic surface-reconfigured Cu (110) facets (SF-Cu) composite magnesium anodes. The Mg-plated SF-Cu (Mg@SF-Cu) electrodes exhibit excellent cyclic stability of over 2000 h and high coulombic efficiency of 99.0 % during Mg stripping/plating processes. This work demonstrates the feasibility of the facet modulated of Cu collectors as Mg deposition carriers to enhance the electrochemical reversibility of RMBs.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102377"},"PeriodicalIF":3.0,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A catalogue of metallic glass-forming alloy systems","authors":"Weijie Xie ,&nbsp;Mingxing Li ,&nbsp;Yitao Sun ,&nbsp;Chao Wang ,&nbsp;Liwei Hu ,&nbsp;Yanhui Liu","doi":"10.1016/j.mtla.2025.102375","DOIUrl":"10.1016/j.mtla.2025.102375","url":null,"abstract":"<div><div>Rational materials design out of vast compositional space is attractive yet challenging. The data-driven approach has shown promise in accelerating the development of advanced multicomponent alloys, such as metallic glasses. However, data-driven development of glass-forming alloys is limited by the sparse and biased datasets. In this study, we establish the high-throughput experimental database (HED), featuring an unprecedented quantity and diversity of experimental data. This database, encompassing 15,080 materials from 33 alloy systems synthesized and characterized under consistent conditions, provides a robust dataset for the training of machine learning model. The developed model is validated by both literature data and high-throughput experiments, and enables the creation of a catalogue of metallic glass forming alloy systems. The catalogue would serve as a practical reference for efficient design of glass-forming alloys systems.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"39 ","pages":"Article 102375"},"PeriodicalIF":3.0,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}