Journal of Materials Science最新文献

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Fabrication and characterization of WO3/Fe2O3/GO ternary heterostructure for visible light-driven photocatalytic hydrogen production 可见光催化制氢用WO3/Fe2O3/GO三元异质结构的制备与表征
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-20 DOI: 10.1007/s10853-026-13759-9
Yashika, Anupam Agarwal, Aanchal Sethi
{"title":"Fabrication and characterization of WO3/Fe2O3/GO ternary heterostructure for visible light-driven photocatalytic hydrogen production","authors":"Yashika,&nbsp;Anupam Agarwal,&nbsp;Aanchal Sethi","doi":"10.1007/s10853-026-13759-9","DOIUrl":"10.1007/s10853-026-13759-9","url":null,"abstract":"<div><p>A ternary heterostructure WO<sub>3</sub>/Fe<sub>2</sub>O<sub>3</sub>/GO (WFG) nanocomposite for effective photocatalytic hydrogen production under irradiation of visible light is synthesized by hydrothermal process. The combination of GO with WO<sub>3</sub>/Fe<sub>2</sub>O<sub>3</sub> heterostructure improved visible light absorption and interfacial charge separation, leading to a lowered optical band gap of 1.96 eV along with enhanced charge-transfer properties. Under visible light exposure in a Na<sub>2</sub>S/Na<sub>2</sub>SO<sub>3</sub> sacrificial system, WFG demonstrated a hydrogen evolution of 25.26 mmol g<sup>−1</sup> over 10 h corresponding to HER of 2.526 mmol g<sup>−1</sup> h<sup>−1</sup>. The increased activity was supported by PL, EIS, Mott–Schottky, and VB-XPS analysis which indicated reduced charge recombination and beneficial interfacial electronic interactions. The photocatalyst maintained its effectiveness across six consecutive cycles showing strong stability which is further supported by post-reaction XRD, FTIR, XPS, and TEM. An estimated apparent quantum efficiency of around 4.41% suggests effective use of visible light photons. These results indicate that WO<sub>3</sub>/Fe<sub>2</sub>O<sub>3</sub>/GO (WFG) nanocomposite is a potential photocatalyst for visible light-induced hydrogen production.</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":"61 43","pages":"33696 - 33724"},"PeriodicalIF":4.4,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099059","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}
引用次数: 0
Effect of Nb and Ta alloying on corrosion behavior and passive film chemistry of biomedical Ti–Zr-based medium-entropy alloys in PBS solution Nb和Ta合金化对生物医用ti - zr基中熵合金在PBS溶液中的腐蚀行为和钝化膜化学的影响
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-20 DOI: 10.1007/s10853-026-13760-2
Shiwen Hu, Pengjie Wei, Yang Liu, Zefeng Chen, Dexue Liu
{"title":"Effect of Nb and Ta alloying on corrosion behavior and passive film chemistry of biomedical Ti–Zr-based medium-entropy alloys in PBS solution","authors":"Shiwen Hu,&nbsp;Pengjie Wei,&nbsp;Yang Liu,&nbsp;Zefeng Chen,&nbsp;Dexue Liu","doi":"10.1007/s10853-026-13760-2","DOIUrl":"10.1007/s10853-026-13760-2","url":null,"abstract":"<div><p>Ti–Zr-based medium-entropy alloys are promising candidates for biomedical implants owing to their favorable biocompatibility and ability to form protective passive films in physiological environments. However, the relationship between Nb/Ta-induced changes in <i>α</i>′/<i>α</i>″/<i>β</i> phase constitution and the corresponding corrosion and passivation behavior of Ti–Zr-rich alloys remains insufficiently understood. In this work, Ti–Zr–Nb and Ti–Zr–Ta medium-entropy alloy series with different Nb/Ta contents were fabricated by vacuum arc melting, with commercially pure Ti and Ti–6Al–4V used as reference materials. Their microstructure and surface electrochemical heterogeneity were characterized, while corrosion behavior and passive film chemistry were evaluated in PBS solution; Gibbs free energy analysis and early cell adhesion assessment were also performed. XRD and EBSD results reveal that increasing Nb/Ta content promotes the transition from <i>α</i>′/<i>α</i>″/<i>β</i> multiphase structures to β-dominated matrices, with Nb showing a stronger β-stabilizing effect than Ta. Electrochemical results demonstrate that corrosion resistance does not improve monotonically with increasing Nb/Ta content. Ta5 exhibits the lowest corrosion current density of 1.13 × 10<sup>−6</sup> A cm<sup>−2</sup>, whereas Nb4 shows the lowest passive current density among the designed alloys, 2.60 × 10<sup>−5</sup> A cm<sup>−2</sup>. Although Nb10 and Ta10 display higher interfacial impedance near OCP, they also exhibit higher corrosion/passive current densities and earlier current rise behavior during anodic polarization. XPS analysis identified TiO₂/ZrO₂-based passive films containing Nb- or Ta-containing oxide species, while the Gibbs free energy data indicate that the formation of these high-valence oxides is thermodynamically favorable. These results indicate that high impedance near OCP does not necessarily guarantee stable anodic passivation. Instead, relatively low Nb/Ta additions provide a better balance between corrosion resistance, passive current response, high-potential film stability, and early cell adhesion.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"34147 - 34172"},"PeriodicalIF":4.4,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099050","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}
引用次数: 0
High-efficiency three-dimensional electrocatalytic degradation of tetracycline over a novel Fe2O3/Co3O4-loaded sodium alginate particle electrode 新型负载Fe2O3/ co3o4海藻酸钠颗粒电极上四环素的高效三维电催化降解
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-20 DOI: 10.1007/s10853-026-13507-z
Yuwei Sun, Jiashuang Lei, Chuqi Ren, Zhenhua Liu, Hongxue Du, Honghui Teng, Mingyue Piao
{"title":"High-efficiency three-dimensional electrocatalytic degradation of tetracycline over a novel Fe2O3/Co3O4-loaded sodium alginate particle electrode","authors":"Yuwei Sun,&nbsp;Jiashuang Lei,&nbsp;Chuqi Ren,&nbsp;Zhenhua Liu,&nbsp;Hongxue Du,&nbsp;Honghui Teng,&nbsp;Mingyue Piao","doi":"10.1007/s10853-026-13507-z","DOIUrl":"10.1007/s10853-026-13507-z","url":null,"abstract":"<div><p>The pervasive contamination of water bodies by tetracycline (TC) highlights the importance of developing efficient remediation technologies. This study presents the synthesis and application of a novel sodium alginate (SA)-based particle electrode (Fe<sub>2</sub>O<sub>3</sub>/Co<sub>3</sub>O<sub>4</sub>-PB/SA) for the enhanced electrocatalytic degradation of TC in a three-dimensional system. Comprehensive characterization confirmed the successful fabrication and enhanced electrochemical properties of the material. Under optimized conditions, the system achieved a high TC removal efficiency of 93.4%. Mechanistic investigations revealed that hydroxyl radicals played the predominant role, contributing 57% to the degradation. Furthermore, the synergistic combination of liquid chromatography–mass spectrometry analysis and density functional theory calculations elucidated the degradation pathways and identified the electrophilic hotspots on the TC molecule, thereby explaining the reaction mechanism at the electronic level. This work not only provides a high-performance particle electrode but also delivers a profound mechanistic understanding for the electrocatalytic treatment of antibiotic wastewater.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"33515 - 33531"},"PeriodicalIF":4.4,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099049","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}
引用次数: 0
Fabrication of carbon nanotube–zinc oxide transparent conductive electrodes and evaluation for thin-film solar cells 碳纳米管-氧化锌透明导电电极的制备及薄膜太阳能电池性能评价
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-20 DOI: 10.1007/s10853-026-13772-y
Abdulrasheed B. Adio, Abdulrasheed M. Ajao, Abubakar D. Atere
{"title":"Fabrication of carbon nanotube–zinc oxide transparent conductive electrodes and evaluation for thin-film solar cells","authors":"Abdulrasheed B. Adio,&nbsp;Abdulrasheed M. Ajao,&nbsp;Abubakar D. Atere","doi":"10.1007/s10853-026-13772-y","DOIUrl":"10.1007/s10853-026-13772-y","url":null,"abstract":"<div><p>Transparent conductive oxides (TCOs) are widely used as transparent electrodes in optoelectronic devices, including thin-film solar cells. Indium tin oxide (ITO) is commonly used. However, the scarcity and high cost of indium have created the need for alternative TCOs. Zinc oxide (ZnO)-based TCOs have attracted attention as potential substitutes for ITO, although improvements in their optical and electrical properties are required. This study aimed to develop carbon nanotube (CNT)–ZnO composite transparent conductive electrodes and investigate the effects of CNT–ZnO concentration and spin-coating speed on their optical and electrical properties. CNT–ZnO solutions with concentrations of 1, 2, and 3 mg/mL were deposited on glass substrates using spin-coating speeds of 1000, 2000, and 3000 rpm. The fabricated electrodes were characterized using UV–Vis spectroscopy, a four-point probe system, scanning electron microscopy, and atomic force microscopy. The electrodes exhibited transmittance values of 83.98–87.30% and sheet-resistance values of 48.01–91.83 Ω/sq, with a maximum figure of merit (FoM) of 48.95. The highest transmittance of 87.30% was obtained at 2 mg/mL and 3000 rpm, while the lowest sheet resistance of 48.01 Ω/sq was obtained at 1 mg/mL and 2000 rpm; the highest FoM of 48.95 and lowest NUF of 4.72 × 10⁻<sup>3</sup> were obtained at 2 mg/mL and 2000 rpm. The results demonstrate that CNT–ZnO composite concentration and spin-coating speed can be optimized to obtain favorable optical and electrical properties, indicating the potential of the fabricated electrodes for transparent electrode applications, including potential applications in thin-film solar cells.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"33834 - 33844"},"PeriodicalIF":4.4,"publicationDate":"2026-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099051","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}
引用次数: 0
Investigation on deformation mechanism and recrystallization behavior of a Mg–Gd–Y–Zn–Mn alloy by hot compression Mg-Gd-Y-Zn-Mn合金热压缩变形机理及再结晶行为研究
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-19 DOI: 10.1007/s10853-026-13758-w
Menghan Zhang, Jingyu Jiang, Hengjun Luo, Yuan Ye, Xianhua Chen
{"title":"Investigation on deformation mechanism and recrystallization behavior of a Mg–Gd–Y–Zn–Mn alloy by hot compression","authors":"Menghan Zhang,&nbsp;Jingyu Jiang,&nbsp;Hengjun Luo,&nbsp;Yuan Ye,&nbsp;Xianhua Chen","doi":"10.1007/s10853-026-13758-w","DOIUrl":"10.1007/s10853-026-13758-w","url":null,"abstract":"<div><p>This study investigates the hot deformation behavior of a Mg–Gd–Y–Zn–Mn alloy. A strain-compensated hyperbolic-sine Arrhenius constitutive model was established, and hot processing maps were constructed. The dynamic recrystallization (DRX) mechanisms and the roles of second phases under different deformation conditions were systematically examined. The results show that the constitutive model exhibits reasonable fitting accuracy (correlation coefficient R = 0.992, root mean square error RMSE = 8.992MPa, and average absolute relative error AARE = 7.283%). The hot processing maps indicate that the optimum hot working window is 420–500 °C with a strain rate of approximately 0.01 s<sup>−1</sup>. Microstructural analysis reveals that in the instability region, deformation is dominated by prismatic &lt;a&gt; slip, the DRX fraction is below 10%, and discontinuous DRX (DDRX) is the primary mechanism, while continuous DRX (CDRX) is suppressed by lamellar LPSO phases. In the instability-edge region, prismatic &lt;a&gt; slip remains dominant but is accompanied by limited basal and pyramidal slip and DDRX still dominates. In the stable region, multiple slip systems are activated simultaneously, and distinct Orowan looping is observed. At high temperatures, most lamellar long-period stacking-ordered (LPSO) phases dissolve, while the undissolved LPSO phases together with <i>α</i>–Mn particles inhibit grain boundary migration, resulting in a bimodal grain structure. This work provides a theoretical basis for designing hot working processes for Mg–Gd–Y–Zn–Mn alloys.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"34124 - 34146"},"PeriodicalIF":4.4,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098650","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}
引用次数: 0
Hierarchical structuring of polycarbonate for concurrent superhydrophobic retention and SERS activity 聚碳酸酯超疏水保留和SERS活性的分层结构
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-19 DOI: 10.1007/s10853-026-13709-5
Mohammad Kamal Hossain, Nuraiz Hossain, Rashid S. Al Abri
{"title":"Hierarchical structuring of polycarbonate for concurrent superhydrophobic retention and SERS activity","authors":"Mohammad Kamal Hossain,&nbsp;Nuraiz Hossain,&nbsp;Rashid S. Al Abri","doi":"10.1007/s10853-026-13709-5","DOIUrl":"10.1007/s10853-026-13709-5","url":null,"abstract":"<div><p>In this study, a commercially available polycarbonate (PC) sheet was chemically treated to develop a hierarchically structured surface, followed by silver (Ag) sputtering. This simple, one-step method produced micro- and nanoscale roughness that trapped air, leading to superhydrophobic behavior consistent with the Cassie–Baxter model. High-resolution FESEM imaging revealed complex dual-layer nanostructures, including flower-like microscale formations with petal-like nanoscale features atop a textured base. These features significantly increased surface roughness, resulting in a water contact angle (WCA) of approximately 150.7°. To enhance functionality, a thin Ag layer was sputtered onto the structured surface. Post-treatment analysis confirmed that the nanostructures remained intact and uniformly decorated with Ag, further increasing the WCA to about 156.7°, indicating stronger superhydrophobicity. This preserved nanostructure also provided a larger effective surface area ideal for molecular adsorption. The Ag-decorated PC was evaluated for SERS activity using Rhodamine 6G (R6G) as a probe. While pristine PC showed only its characteristic Raman bands, the treated surface produced a significantly enhanced R6G signal, with complete suppression of the background polymer signal—confirming strong SERS performance. This dual-function platform combines superhydrophobicity with high-sensitivity detection, offering practical potential for applications in biosensing, environmental monitoring, and chemical analysis.</p><h3>Graphical abstract</h3><p>FESEM micrograph of treated PC along with WCA of 150.7° and Raman spectrum (left panel) and that of Ag-decorated treated PC along with WCA of 156.7°and enhanced SERS spectrum of R6G adsorbed thereon (right panel).</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"35229 - 35245"},"PeriodicalIF":4.4,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163062","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}
引用次数: 0
Synergistic doping of the grain interior and grain boundary alters deformation mechanisms and enables extreme strength in nanocrystalline Ni-Cr-Y alloys 晶粒内部和晶界的协同掺杂改变了Ni-Cr-Y纳米晶合金的变形机制,使其具有极高的强度
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-19 DOI: 10.1007/s10853-026-13753-1
Yi Liu, Jason R. Trelewicz, Timothy J. Rupert
{"title":"Synergistic doping of the grain interior and grain boundary alters deformation mechanisms and enables extreme strength in nanocrystalline Ni-Cr-Y alloys","authors":"Yi Liu,&nbsp;Jason R. Trelewicz,&nbsp;Timothy J. Rupert","doi":"10.1007/s10853-026-13753-1","DOIUrl":"10.1007/s10853-026-13753-1","url":null,"abstract":"<div><p>Solid solution addition and grain boundary segregation have been independently shown to enhance the strength of nanocrystalline alloys. In the present study, the interplay between these two effects is investigated in nanocrystalline Ni-Cr-Y sputtered films through systematic variation of alloying element contents with grain size kept constant. Cr is introduced into a solid solution and serves to strengthen the lattice, while Y segregates to the grain boundaries to stabilize these features. Nanoindentation is used to probe hardness, with unexpected trends and very high values observed. Cr additions led to nanocrystalline solid solution strengthening, yet saturation was observed at higher concentrations due to the emergence of grain boundary-dominated processes, as evidenced by pileup morphologies containing slip steps and grain rotation. Y enrichment was observed at the examined grain boundaries, enhancing boundary-mediated strengthening by pinning the dislocations and suppressing dislocation emission, grain boundary sliding, and grain rotation processes. With increasing Y concentration, the nanocrystalline solid solution strengthening effect induced by Cr addition becomes weaker. This phenomenon can be attributed to a reduced dislocation bowing distance caused by dopant pinning. Most notably, the strongest ternary Ni-Cr-Y alloy exhibited a hardness of 11.0 GPa, among the highest hardness values reported for single-phase nanocrystalline Ni alloys with grain sizes near 20 nm. These findings highlight how tuning grain and grain boundary chemistry offers a viable strategy to control dislocation mechanics and improve the strength of nanocrystalline metals.</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":"61 43","pages":"34103 - 34123"},"PeriodicalIF":4.4,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098767","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}
引用次数: 0
Correction: CaO-controlled Al/Fe2O3 thermite for on-site repair of 304 SS 更正:cao控制的Al/Fe2O3铝热剂用于现场修复304 SS
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-19 DOI: 10.1007/s10853-026-13783-9
Chen Yu, Guangzhen Ren, Yuqiang Liu, Yan Zhang, Daqian Sun
{"title":"Correction: CaO-controlled Al/Fe2O3 thermite for on-site repair of 304 SS","authors":"Chen Yu,&nbsp;Guangzhen Ren,&nbsp;Yuqiang Liu,&nbsp;Yan Zhang,&nbsp;Daqian Sun","doi":"10.1007/s10853-026-13783-9","DOIUrl":"10.1007/s10853-026-13783-9","url":null,"abstract":"","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 44","pages":"35277 - 35277"},"PeriodicalIF":4.4,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163160","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}
引用次数: 0
Mechanical properties and CMAS corrosion behavior of Sc2O3 and Y2O3 co-stabilized ZrO2 pellets Sc2O3和Y2O3共稳定ZrO2球团的力学性能和CMAS腐蚀行为
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-19 DOI: 10.1007/s10853-026-13778-6
Yangguang Liu, Wenkang Zhang, Zimeng Wang, Xiaolin Yao, Fang Zhang, Vitus Mwinteribo Tabie, Fengping Zhong, Jing Chen, Xianrui Zou, Puzhen Shao, Xiao Li, Weize Wang, Shan-tung Tu
{"title":"Mechanical properties and CMAS corrosion behavior of Sc2O3 and Y2O3 co-stabilized ZrO2 pellets","authors":"Yangguang Liu,&nbsp;Wenkang Zhang,&nbsp;Zimeng Wang,&nbsp;Xiaolin Yao,&nbsp;Fang Zhang,&nbsp;Vitus Mwinteribo Tabie,&nbsp;Fengping Zhong,&nbsp;Jing Chen,&nbsp;Xianrui Zou,&nbsp;Puzhen Shao,&nbsp;Xiao Li,&nbsp;Weize Wang,&nbsp;Shan-tung Tu","doi":"10.1007/s10853-026-13778-6","DOIUrl":"10.1007/s10853-026-13778-6","url":null,"abstract":"<div><p>Rare-earth stabilizer design provides an effective approach for enhancing the high-temperature CMAS corrosion resistance of zirconia-based ceramics. In this study, Sc<sub>2</sub>O<sub>3</sub>–Y<sub>2</sub>O<sub>3</sub> co-stabilized ZrO<sub>2</sub> pellets containing 0–6 wt% Sc<sub>2</sub>O<sub>3</sub> were prepared by solid-state reaction, cold isostatic pressing, and high-temperature sintering. Their microstructures, phase constitution, apparent crystallite size, mechanical properties, porosity, and CMAS corrosion behavior were systematically investigated. Rietveld profile fitting showed that an m-ZrO<sub>2</sub>–Y<sub>2</sub>O<sub>3</sub>–Sc<sub>2</sub>O<sub>3</sub> model reproduced the powder patterns of YSZ and 2ScY more closely than those of 4ScY and 6ScY, indicating limitations of the three-phase model at higher Sc<sub>2</sub>O<sub>3</sub> contents. In contrast, the sintered pellets were satisfactorily described by a t-ZrO<sub>2</sub> model, supporting a predominantly tetragonal structure. Increasing the Sc<sub>2</sub>O<sub>3</sub> content partially suppressed grain growth and increased hardness, but reduced the critical crack-growth energy release rate. After CMAS exposure, degraded, loose, and dense matrix zones were identified in the cross-sections. The degradation thickness, loose-zone height, and effective CMAS penetration depth progressively decreased with increasing Sc<sub>2</sub>O<sub>3</sub> content. Overall, Sc<sub>2</sub>O<sub>3</sub>–Y<sub>2</sub>O<sub>3</sub> co-stabilization improved the CMAS resistance of zirconia pellets relative to YSZ, with 6ScY exhibiting the lowest measured degradation and penetration values.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"61 43","pages":"33479 - 33501"},"PeriodicalIF":4.4,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098766","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}
引用次数: 0
Rational design of a broadband-responsive core-shell Sb2S3/BiOBr S-scheme heterojunction for simultaneous H2O2 production and tetracycline hydrochloride degradation 合理设计宽带响应的Sb2S3/BiOBr s方案异质结,用于同时产生H2O2和降解盐酸四环素
IF 4.4 3区 材料科学
Journal of Materials Science Pub Date : 2026-09-19 DOI: 10.1007/s10853-026-13741-5
Biao Guo, Xinying Sun, Xia Wu, Yuqing Zhang, Xinxin Liu, Shigang Xin, Zhen Zhao
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