Journal of Materials Science & Technology最新文献

{"title":"Enhanced high-temperature stability in CuCrZrY alloys: reduced precipitate coarsening and recrystallization","authors":"Xinhao Zhang, Xiaoxin Zhang, Jun Zhang, Qingzhi Yan","doi":"10.1016/j.jmst.2024.12.044","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.044","url":null,"abstract":"Precipitation strengthening is a critical strategy for developing high-performance Cu alloys that combine exceptional strength with high conductivity. However, this method often loses effectiveness at elevated temperatures due to the poor thermal stability of the precipitates, which tend to coarsen rapidly, leading to accelerated mechanical degradation. In this study, we introduce a CuCrZrY alloy that demonstrates remarkable structural and mechanical stability at high temperatures. Notably, after annealing at 550 °C for 500 h, only 18.8% of the grains were recrystallized. Through a combination of experimental investigations and first-principles calculations, we discovered that the strong solute-vacancy binding energy of Y in Cu significantly impedes bulk diffusion of solute, thereby inhibiting precipitate coarsening and recrystallization. The coarsening rate constant for the CuCrZrY alloy was found to be approximately half that of the CuCrZr alloy. During prolonged annealing, the formation of sub-grains via recovery enhances boundary diffusion, leading to a layered distribution of precipitates. The recrystallization model further elucidates the interplay between eutectic phases, precipitates, and the migration of recrystallization boundaries. Initially, eutectic phases contribute to the accumulation of geometrically necessary dislocations during rolling, which triggers recrystallization in the early stages of annealing. Additionally, the triple junctions of sub-grain and recrystallization boundaries facilitate precipitate coarsening, thereby reducing the pinning force. Consequently, the CuCrZrY alloy undergoes a unique recrystallization process characterized by discontinuous precipitate coarsening and a cycle of pinning-depinning-repinning of recrystallized grain boundaries. These insights provide valuable guidance for designing Cu alloys with stable microstructural and mechanical properties under prolonged high-temperature conditions.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"13 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435703","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":"Harmonization of heterointerface states to enhance built-in electric field effects for electromagnetic wave absorption","authors":"Hongbao Zhu, Yi Yan, Jintang Zhou, Jiaqi Tao, Kexin Zou, Zhenyu Cheng, Zhengjun Yao, Xuewei Tao, Yiming Lei, Yao Ma, Peijiang Liu, Hexia Huang","doi":"10.1016/j.jmst.2024.12.043","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.043","url":null,"abstract":"Heterointerface engineering based on built-in electric field (BIEF) has been well-received in electromagnetic wave (EMW) absorption. However, the influence of interface size and number of interfaces on the BIEF and interface polarization loss mechanism remains unclear. Here, we designed a ternary dual heterointerfaces Co@C/SiO₂ nanocomposite. Experimental and theoretical analyses show that Co@C/SiO₂ has abundant Mott-Schottky heterointerfaces, and a reasonable increase in the heterointerface area leads to a strong BIEF effect, where the charge accumulates at the interface and subsequently migrates along the direction of the alternating electromagnetic field to promote the dissipation of EMW by polarization loss. However, an excessive number of interfaces leads to many carriers being bound by the interfaces, which is not conducive to forming electron channels. By coordinating the heterointerface states to achieve optimal EMW absorption performance, SZ-3 can accomplish an effective absorption width (EAB) of 5.93 GHz at a thickness of 1.91 mm. This work provides new ideas and methods for BIEF-based heterointerface engineering applied to EMW absorption materials.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"17 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417472","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":"Field fluctuations viscoplastic self-consistent crystal plasticity extended for modeling of hexagonal metals: Applications to deformation and recrystallization of alloy AZ31","authors":"Iftekhar A. Riyad, Marko Knezevic","doi":"10.1016/j.jmst.2025.01.009","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.009","url":null,"abstract":"In this paper, a recently developed field-fluctuations viscoplastic self-consistent (FF-VPSC) polycrystal plasticity formulation for cubic metals incorporating grain fragmentation and recrystallization models is extended to the modeling of hexagonal metals. The extended FF-VPSC model calculates the second moments of lattice rotation rates based on the second moments of stress fields and resulting intragranular misorientation distributions not only inside grains but also inside twins. The novel model retains a temperature-sensitive dislocation density-based hardening law along with an advanced composite grain model for handling primary and secondary twinning at the grain level. The model is used to interpret and predict the mechanical response and texture evolution during deformation and dynamic recrystallization of magnesium alloy AZ31 in simple tension at temperatures ranging from room temperature to 200°C at a quasi-static strain rate. To study the role of deformation mechanisms on recrystallization kinetics, the alloy was pulled along the normal direction (ND), transverse direction (TD), and 45° direction between ND and the rolling direction (RD). Taking the experimentally measured initial texture and grain size as inputs, the model was successfully calibrated and validated to capture the evolution of thermo-mechanical response, texture, and twin volume fraction from room temperature to the dynamic recrystallization regime at 200°C. The differences in the response amongst the loading directions were successfully predicted owing to the extent of dynamic recrystallization and varying relative activities of slip and twinning modes, which the model internally adjusts based on slip and twin resistances evolving with the imposed loading conditions and temperature.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"79 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417465","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":"Developing a lamellar-structured Mg-4Li-3Al-0.4Ca alloy with high strength-ductility synergy","authors":"Xiaofei Cui, Yan Yang, Zihao Zhou, Zhonghua Hu, Yangyang Luo, Guobing Wei, Wen Gao, Bin Jiang, Xiaodong Peng, Fusheng Pan","doi":"10.1016/j.jmst.2024.11.083","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.11.083","url":null,"abstract":"The low strength of Mg-Li alloys sets a limit to lightweight applications. Introducing crystal defects (twins, dislocations, and SFs) is a distinctive strategy for maintaining good mechanical properties of metallic materials. A lamellar-structured Mg-4Li-3Al-0.4Ca alloy with high performance was prepared by hot extrusion and rotary swaging. The as-swaged alloy exhibits excellent mechanical properties with tensile strength, yield strength, elongation to failure, and specific strength of 391 MPa, 312 MPa, 14.2%, and 238.4 kN m kg⁻¹, respectively. The average grain size of the as-swaged alloy is 160 ± 23 nm, and the microstructure is mainly composed of lamellar structures, twins, ultrafine grains, and nano-grains. The abundant lamellar structures and twins promote the storage of dislocations and SFs, leading to the formation of twin-twin interactions and enhancing strain hardening. The formation of UFG and NG by dynamic recrystallization further improves the yield strength. Shearable second phases play a critical role in enhancing the yield strength and ductility. More importantly, extensive planar dislocation glide and &lt;<em>c</em>+<em>a</em>&gt; dislocations efficiently relax the local stress concentrations, and thus improve the ductility.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"66 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417470","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":"Recent progress on plastic forming of laminated metal composites: processes, heterogeneous deformation, and interfacial regulation","authors":"Xuefeng Tang, Qiyue Peng, Jinchuan Long, Xinyun Wang, Yongcheng Lin, Lei Deng, Junsong Jin, Pan Gong, Mao Zhang, Myoung-Gyu Lee","doi":"10.1016/j.jmst.2025.01.007","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.007","url":null,"abstract":"Laminated metal composites (LMCs) have widespread application prospects and are set to become indispensable in addressing modern engineering challenges owing to their capability of leveraging the synergy between different metals and tailoring performance by flexibly regulating the layered configuration. The plastic forming process, as a promising advanced manufacturing technology, has been increasingly adopted for the fabrication of LMC components due to its advantages of high material utilization rate, high production efficiency, and excellent mechanical properties of the product. This review delved into the research progress on the plastic-forming process of LMCs, including rolling, extrusion, spinning, etc. It outlined the forming principles, unique characteristics, bonding mechanisms, and the influence of key process parameters on deformation, microstructure, and property. This review focused on the heterogeneous deformation and interfacial regulation of LMCs, providing insights into the mechanisms of heterogeneous deformation, damage and fracture, and formation mechanisms of intermetallic compounds. It also delineated the experimental characterization and numerical modeling methods to elucidate the heterogeneous deformation behavior, as well as the approaches to evaluating and enhancing the performance of LMCs. Finally, the challenges and prospects of manufacturing high-performance LMCs by plastic forming process are orchestrated.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"42 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417468","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":"Correlation between metastable pitting and structural heterogeneity in Co-based metallic glasses","authors":"Haoran Ma, Dongxue Han, Chunyang Mu, Feixiong Mao, Aina He, Yaqiang Dong, Deren Li, Qikui Man, Baogen Shen, Jiawei Li","doi":"10.1016/j.jmst.2025.01.006","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.006","url":null,"abstract":"By employing micrometer-diameter microelectrodes, the metastable pitting corrosion behavior of Co_68.15Fe_4.35Si_12.5B₁₂Cr₃ metallic glasses (MGs) exposed to 0.6 mol/L NaCl solution was investigated to clarify the correlation between metastable pitting and structural heterogeneity in MGs. Thermally induced degeneration of structural heterogeneity inhibits the initiation, decelerates the growth kinetics, and accelerates the repassivation kinetics of metastable pits while also decreasing the probability of transition from metastability to stability. This enhanced resistance to pitting corrosion is attributed to a reduction in active pitting precursor sites and a decrease in electrochemical activity caused by the structural homogenization of MGs.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"17 10 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417471","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":"First-principles modeling of passivation behaviors of stainless steels in corrosive environments","authors":"Wenjing Xu, Ergen Bao, Yueqi Si, Hui Ma, Peitao Liu, Yan Sun, Yongpeng Shi, Xing-Qiu Chen","doi":"10.1016/j.jmst.2024.11.082","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.11.082","url":null,"abstract":"Accurately determining the Flade potential (&lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;E&lt;/mi&gt;&lt;mtext is=\"true\"&gt;Flade&lt;/mtext&gt;&lt;/msub&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"2.322ex\" role=\"img\" style=\"vertical-align: -0.549ex;\" viewbox=\"0 -763.5 2559.2 999.8\" width=\"5.944ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;use xlink:href=\"#MJMATHI-45\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(738,-150)\"&gt;&lt;use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-46\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"653\" xlink:href=\"#MJMAIN-6C\" y=\"0\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"932\" xlink:href=\"#MJMAIN-61\" y=\"0\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"1432\" xlink:href=\"#MJMAIN-64\" y=\"0\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"1989\" xlink:href=\"#MJMAIN-65\" y=\"0\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;span role=\"presentation\"&gt;&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;E&lt;/mi&gt;&lt;mtext is=\"true\"&gt;Flade&lt;/mtext&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;E&lt;/mi&gt;&lt;mtext is=\"true\"&gt;Flade&lt;/mtext&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt;) is of significant importance in the design of novel corrosion-resisting alloys. However, due to the complex nature of the &lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;E&lt;/mi&gt;&lt;mtext is=\"true\"&gt;Flade&lt;/mtext&gt;&lt;/msub&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"2.322ex\" role=\"img\" style=\"vertical-align: -0.549ex;\" viewbox=\"0 -763.5 2559.2 999.8\" width=\"5.944ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;use xlink:href=\"#MJMATHI-45\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(738,-150)\"&gt;&lt;use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-46\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"653\" xlink:href=\"#MJMAIN-6C\" y=\"0\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"932\" xlink:href=\"#MJMAIN-61\" y=\"0\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"1432\" xlink:href=\"#MJMAIN-64\" y=\"0\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"1989\" xlink:href=\"#MJMAIN-65\" y=\"0\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;span role=\"presentation\"&gt;&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;E&lt;/mi&gt;&lt;mtext is=\"true\"&gt;Flade&lt;/mtext&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/span&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;E&lt;/mi&gt;&lt;mtext is=\"true\"&gt;Flade&lt;/mtext&gt;&lt;/msub&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt; influenced by several factors inclu","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"34 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417469","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":"Designing strategy for developing excellent elastocaloric material of Ni–Mn–Ti alloys with doping from first-principles calculations","authors":"Lei Zhao, Changlong Tan, Jianyong Wang, Jie Yang, Xiaochuan Wang, Wenbin Zhao, Jian Li, Zhaohui Luan, Xiaohua Tian","doi":"10.1016/j.jmst.2025.01.008","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.01.008","url":null,"abstract":"Ni–Mn–Ti Heusler alloys have great potential for elastocaloric refrigeration due to the colossal caloric effect and good mechanical properties. However, theoretical calculations on the characterization of the elastocaloric effect are rare. An important parameter to evaluate the elastocaloric effect is the transformation entropy change, whose main source is the vibrational entropy change (Δ<em>S</em>_vib). Unfortunately, the widely used quasiharmonic approximation method fails in the prediction of the vibrational entropy for high-temperature austenite due to its dynamical instability at 0 K. To solve this problem, the temperature dependent effective potential method was used considering the temperature and anharmonic effect. Sc, V, and Zr doping at the Ti sites in B2 disordered Ni₈Mn₅Ti₃ were studied about phase stability, martensitic transformation, and elastocaloric properties. The results revealed the austenitic structures of all the doping systems exhibit antiferromagnetic coupling characteristics at 300 K due to the temperature effect. Sc and Zr doping at the Ti sites decreased the Δ<em>S</em>_vib value, whereas V doping at the Ti site increased the Δ<em>S</em>_vib value. Further analysis proved the important evaluation criterion that the Δ<em>S</em>_vib value increases with the tetragonal distortion ratio and volume change, which has important guiding significance for improving the elastocaloric effect. Besides, the calculations of elastic constants presented all the doping systems maintain outstanding ductility evaluated from the <em>B</em>/<em>G</em> ratio. This work provides an effective strategy for designing excellent elastocaloric material with large vibrational entropy change and good mechanical properties.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"1 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417466","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":"Molecular tailoring of pomegranate-like CoMn2O4 via vanadium doping to achieve durable aqueous zinc-ion batteries with enhanced diffusion kinetics","authors":"Guangfeng Liang, Zuze Li, Qingze Jiao, Haibo Jin, Yuefeng Su, Ning Li, Jingbo Li, Zhiyong Xiong, Caihong Feng, Yun Zhao","doi":"10.1016/j.jmst.2024.12.041","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.041","url":null,"abstract":"Manganese-based binary transition metal oxides (BTMO) emerge as a highly followed cathode for aqueous zinc-ion batteries (AZIBs) in recent years because of the relatively stable structure and exceptional energy density. Nonetheless, the problems of slow electrochemical reaction kinetics and low intrinsic conductivity have limited their development. Herein, V was introduced into pomegranate-like CoMn₂O₄ to form V doped CoMn₂O₄ (V-CMO) with lauxriant oxygen vancancies via a straightforward solvothermal method, followed by a calcination treatment. DFT calculations demonstrate that oxygen vacancies improve the intrinsic conductivity of V-CMO and reduce Zn²⁺ diffusion energy barrier. Simultaneously, the unique pomegranate-like morphology with abundant pores and the void space promotes the exposure of electrochemical active sites and reduces the volume strain of electrode during cycling, which can further improve the long-term cycling and rate performance of V-CMO cathode. Consequently, V-CMO cathode shows a high specific capacity (306.6 mAh g⁻¹ at 0.1 A g⁻¹ after 200 cycles) and outstanding cycling stability (98.6 mAh g⁻¹ at 1 A g⁻¹ after 2000 cycles with a decay of 0.05 % per cycle). Furthermore, the assembled flexible ZIBs based on V-CMO exhibit outstanding mechanical stability and excellent electrochemical properties at different deformations. This work sheds some new light on designing spinel-type Mn-based cathode for high-performance ZIBs.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"63 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417467","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":"Nanocomposite hydrogel orchestrating multiple modulation of degenerative microenvironment for potential application in intervertebral disc regeneration","authors":"Huitong Luo, Zhipeng Sun, Zetao Wang, Wanqing Lun, Qi Feng, Dafu Chen, Xiaodong Cao","doi":"10.1016/j.jmst.2024.12.042","DOIUrl":"https://doi.org/10.1016/j.jmst.2024.12.042","url":null,"abstract":"Effective treatment of intervertebral disc degeneration with biomaterials remains a challenge, owing to the difficulty in simultaneously overcoming oxidative stress and its associated cascades in the nucleus pulposus microenvironment, which includes cellular senescence, apoptosis, inflammation, and extracellular matrix (ECM) degradation. To address these issues, a multifunctional hydrogel (HG-QNT) loaded with transforming growth factor-<em>β</em>1 (TGF-<em>β</em>1) and quercetin-based nanoparticles (QUNPs) is developed through borate ester bonding and Schiff base reaction-induced crosslinking. Specifically, QUNPs fabricated via coordination and hydrophobic interactions endow the hydrogel with extraordinary antioxidative properties. Benefiting from the multi-dynamic crosslinking, the hydrogel achieves self-healing, mechanical stability, and pH-responsive release of QUNPs and TGF-<em>β</em>1. The HG-QNT hydrogel is demonstrated to enhance the proliferation of encapsulated nucleus pulposus cells, thereby providing an ideal platform for cell transplantation. The cooperative antioxidation of QUNPs and the hydrogel carrier renders HG-QNT effective in mitigating oxidative stress, resulting in the suppression of cellular senescence, mitochondrial dysfunction, apoptosis, excessive inflammation, and abnormal catabolism. Afterwards, TGF-<em>β</em>1 and QUNPs act in synergy with the hydrogel to restore the anabolic/catabolic balance by enhancing ECM synthesis. Overall, the strategy orchestrating multiple modulation by HG-QNT hydrogel shows great potential for application in intervertebral disc regeneration.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"25 1 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143418484","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}