Journal of The European Ceramic Society最新文献_第4页

The influence of scandium cations on the properties of YSAG:Sm3+ ceramics 钪离子对YSAG:Sm3+陶瓷性能的影响

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-16 DOI: 10.1016/j.jeurceramsoc.2025.117830

V.A. Lapin, A.A. Kravtsov, V.E. Suprunchuk, F.F. Malyavin, D.S. Vakalov, E.V. Medyanik, L.V. Tarala, V.A. Tarala

{"title":"The influence of scandium cations on the properties of YSAG:Sm3+ ceramics","authors":"V.A. Lapin, A.A. Kravtsov, V.E. Suprunchuk, F.F. Malyavin, D.S. Vakalov, E.V. Medyanik, L.V. Tarala, V.A. Tarala","doi":"10.1016/j.jeurceramsoc.2025.117830","DOIUrl":"10.1016/j.jeurceramsoc.2025.117830","url":null,"abstract":"<div><div>YSAG:Sm<sup>3+</sup> oxide powders, along with YAG:Sm as a reference material, were synthesized using a chemical precipitation method. The samarium content was fixed at 5 at%, while the scandium content varied from 0 to 50 at% in both the dodecahedral and octahedral sites. The sintering kinetics, microstructure, thermophysical properties, and optical characteristics of the samples were investigated. Results indicated that 50 at% scandium substitution in the octahedral site shifts the absorption peak corresponding to the <sup>6</sup>H<sub>5/2</sub> → <sup>6</sup>F<sub>9/2</sub> transition toward the blue region of the spectrum, thereby increasing absorption at the YAG:Nd laser emission wavelength of 1064 nm from 2.9 to 5.1 cm<sup>−1</sup>. Despite this notable advantage, the composition {Y<sub>2.70</sub>Sc<sub>0.15</sub>Sm<sub>0.15</sub>}[Sc<sub>1</sub>Al<sub>1</sub>]Al<sub>3</sub>O<sub>12</sub> exhibited a 25.1 % reduction in thermal conductivity compared to YAG:Sm. Additionally, the coefficient of thermal expansion of YSAG:Sm ceramics was higher than that of YAG:Sm. It was confirmed that YSAG:Sm<sup>3+</sup> ceramics are promising candidates for use as absorbing cladding in YAG:Nd lasers.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117830"},"PeriodicalIF":6.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Spark plasma sintering of binderless tungsten carbide: Densification, grain growth mechanism and mechanical properties 火花等离子烧结无粘结剂碳化钨：致密化、晶粒生长机理及力学性能

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-16 DOI: 10.1016/j.jeurceramsoc.2025.117827

Dapeng Sun , Zhongbiao Tang , Jiuxing Zhang , Cuiliu Han , Guojian Lin , Jian Huang , Jingwen Zhang , Jihua Shang , Yan Wang

{"title":"Spark plasma sintering of binderless tungsten carbide: Densification, grain growth mechanism and mechanical properties","authors":"Dapeng Sun , Zhongbiao Tang , Jiuxing Zhang , Cuiliu Han , Guojian Lin , Jian Huang , Jingwen Zhang , Jihua Shang , Yan Wang","doi":"10.1016/j.jeurceramsoc.2025.117827","DOIUrl":"10.1016/j.jeurceramsoc.2025.117827","url":null,"abstract":"<div><div>The densification and grain growth mechanism of binderless tungsten carbide (WC) during spark plasma sintering (SPS) were investigated by power-law creep and grain growth models. A comprehensive analysis of the phase composition, microstructure and mechanical properties of binderless WC was also implemented. The effective stress exponents (<em>n)</em> and grain growth exponents (<em>m</em>) were determined, and the isothermal densification of binderless WC was mainly controlled by grain boundary diffusion (<em>n</em> = 1.5) and dislocation climbing (<em>n</em> = 3), respectively. The corresponding apparent activation energies of densification (<em>Q</em><sub><em>d</em></sub>) were calculated to be 419.87 ± 57.88 kJ/mol and 920.81 ± 126.53 kJ/mol. The grain growth mechanism at higher temperatures (1900–2100℃) was determined to be grain boundary diffusion (<em>m</em> = 2). The binderless WC with well-balanced mechanical properties (<em>HV</em> = 2700 ± 27 kgf/mm<sup>2</sup>, <em>K</em><sub><em>Ic</em></sub> = 8.85 ± 0.12 MN/m<sup>3/2</sup>) was prepared via SPS at 1750℃.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117827"},"PeriodicalIF":6.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Compositionally engineered core@shell Ba(Zr, Ti)O3 for concurrent giant electrocaloric effect and ultra-wide operational window 组合工程core@shell Ba(Zr, Ti)O3，用于同时产生巨大的电热效应和超宽的操作窗口

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-16 DOI: 10.1016/j.jeurceramsoc.2025.117831

Bingbo Wang , Weixue Yang , Zekun Li, Baoyuan Wang, Chen Wu, Ziquan Wang, Chengfeng Li, Jie Wang, Ying Hou

{"title":"Compositionally engineered core@shell Ba(Zr, Ti)O3 for concurrent giant electrocaloric effect and ultra-wide operational window","authors":"Bingbo Wang , Weixue Yang , Zekun Li, Baoyuan Wang, Chen Wu, Ziquan Wang, Chengfeng Li, Jie Wang, Ying Hou","doi":"10.1016/j.jeurceramsoc.2025.117831","DOIUrl":"10.1016/j.jeurceramsoc.2025.117831","url":null,"abstract":"<div><div>Simultaneously achieving large adiabatic temperature change (Δ<em>T</em>) and broad temperature span (<em>T</em><sub>span</sub>) remains a key challenge in eco-friendly electrocaloric ceramics. This work demonstrates a compositionally ordered core-shell design in Zr-doped BaTiO<sub>3</sub> (BaZr<sub><em>x</em></sub>Ti<sub>1-<em>x</em></sub>O<sub>3</sub>, 0.10 ≤ <em>x</em> ≤ 0.25) that synergistically enhances both parameters. Precise Zr gradient engineering induces phase transition overlap and strengthens relaxor behavior through controlled diffusion. The compositionally sandwiched core@double-shell architecture achieves a record Δ<em>T</em> of 6.6 K maintained over an ultra-wide <em>T</em><sub>span</sub> > 70 °C (Δ<em>T</em> ≥ 90 % Δ<em>T</em><sub>max</sub>), representing a ∼ 2-fold <em>T</em><sub>span</sub> extension compared to conventional homogeneous counterparts. Remarkably, the system exhibits the highest EC efficiency (<em>η</em>, 19.81) and refrigerant capacity (<em>RC</em>, 603.1 J kg<sup>−1</sup>) among lead-free electrocaloric ceramics. These breakthroughs originate from the coupled effects of Zr-modulated phase transition characteristics and interfacial polarization enhancement in the hierarchical structure. Our findings provide a generalizable microstructural design strategy for high-performance solid-state cooling materials.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117831"},"PeriodicalIF":6.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Regulation of oxygen vacancies in ITO powders and its impact on densification behavior ITO粉末中氧空位的调控及其对致密化行为的影响

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-16 DOI: 10.1016/j.jeurceramsoc.2025.117829

Weilong Zhong , Jishu Zeng , Xingyu Zhou , Long Hu , Yecheng Liang , Min Lin , Yimin Li , Zhijie Fang , Yongqing Wang

{"title":"Regulation of oxygen vacancies in ITO powders and its impact on densification behavior","authors":"Weilong Zhong , Jishu Zeng , Xingyu Zhou , Long Hu , Yecheng Liang , Min Lin , Yimin Li , Zhijie Fang , Yongqing Wang","doi":"10.1016/j.jeurceramsoc.2025.117829","DOIUrl":"10.1016/j.jeurceramsoc.2025.117829","url":null,"abstract":"<div><div>The concentration of oxygen vacancies in ITO (indium tin oxide) powders plays a critical role in determining their optoelectronic properties and sintering performance. In this study, ITO powders with varying oxygen vacancy concentrations—24.05 %, 29.80 %, 30.86 %, and 44.74 %—were prepared by annealing in four different atmospheres: H<sub>2</sub>, Ar, N<sub>2</sub>, and O<sub>2</sub>, respectively. The sintering densification behaviors of these powders were systematically investigated using TMA. The results indicated that in the initial sintering stage (800–1050°C), a higher oxygen vacancy concentration (44.74 % in ITO-H<sub>2</sub>) significantly enhanced densification. However, the highest final density (>85 %) was achieved by the ITO-O<sub>2</sub> sample with the lowest oxygen vacancy concentration (24.05 %) after the second stage (1050–1350°C) and the final stage (1350–1500°C) of sintering shrinkage. Notably, the ITO powder annealed in N<sub>2</sub> exhibited significantly poor densification during all stages, reducing linear shrinkage by 16 %, which was attributed to the formation of Sn-N bonds.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117829"},"PeriodicalIF":6.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Progress of porous ceramics applied for solar thermochemical CO production 多孔陶瓷在太阳能热化学CO生产中的应用进展

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-15 DOI: 10.1016/j.jeurceramsoc.2025.117826

Xuezhi Li , Yin’e Liu , Yifan Liu , Xintong Xu , Huihui Kong , Xiaoyan Zhang

{"title":"Progress of porous ceramics applied for solar thermochemical CO production","authors":"Xuezhi Li , Yin’e Liu , Yifan Liu , Xintong Xu , Huihui Kong , Xiaoyan Zhang","doi":"10.1016/j.jeurceramsoc.2025.117826","DOIUrl":"10.1016/j.jeurceramsoc.2025.117826","url":null,"abstract":"<div><div>Using metal oxides as carriers, the solar-driven two-step reaction can efficiently convert CO<sub>2</sub> into clean fuel, thereby promoting carbon emission reduction and renewable energy production simultaneously. The solar-to-fuel conversion efficiency is directly determined by the design, parameters, composition, and structure of the solar reactor. This work is comprehensively reviewed based on state of the art CeO<sub>2</sub> and perovskites. It covers key aspects such as the mechanism of thermochemical CO<sub>2</sub> decomposition by metal oxides, the influence of metal ion doping on redox reaction activity, and the impact of morphological specificity and pore structure on thermal radiation, mass transfer properties, and fuel generation kinetics. Additionally, prospective porous structure fabrication technologies with high applicability potential but currently underexplored in thermochemical cycles are highlighted. Key insights are presented for the design and fabrication of porous ceramics in solar thermal chemical fuel synthesis, bridging sustainable energy conversion with technological advancements.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117826"},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Formation of a helium-bubble-free region in irradiated SiC via Mg ion implantation: Irradiation experiments combined with first-principles calculations 镁离子注入辐照SiC中无氦泡区形成：结合第一性原理计算的辐照实验

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-15 DOI: 10.1016/j.jeurceramsoc.2025.117825

Jun Hui , Min Liu , Shuo Wang , Jia Peng Chen , Biao Wang

引用次数: 0

Role of powder microstructure in aerosol-deposited alumina coatings 粉末微观结构在气溶胶沉积氧化铝涂层中的作用

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-15 DOI: 10.1016/j.jeurceramsoc.2025.117828

Zhenying Yang , Mehdi Jadidi , Kailin Chen , Shuyi Zhou , Yu Zou , Ali Dolatabadi , Thomas W. Coyle

{"title":"Role of powder microstructure in aerosol-deposited alumina coatings","authors":"Zhenying Yang , Mehdi Jadidi , Kailin Chen , Shuyi Zhou , Yu Zou , Ali Dolatabadi , Thomas W. Coyle","doi":"10.1016/j.jeurceramsoc.2025.117828","DOIUrl":"10.1016/j.jeurceramsoc.2025.117828","url":null,"abstract":"<div><div>The selection of feedstock powder particles is critical for coating formation in aerosol deposition (AD). AD favors sub-micrometer-sized powders, which are susceptible to aggregation and agglomeration. This study investigates the effect of powder characteristics on coating formation using two types of alumina powders: one consisting of dense, single particles, and the other of agglomerated particles. The morphology, microstructure, and mechanical properties of the coatings deposited on Si substrates were strongly influenced by the powder morphology and pretreatment. Without pretreatment, dense particle powders caused substrate erosion, whereas agglomerated powders produced thick coatings. Ball milling was employed to modify both types of powders, introducing surface defects with reduction in particle and crystallite size. Thick coatings were deposited using ball-milled dense or agglomerated powders. Although deposition with agglomerated powders was easier, coatings from dense powders exhibited higher density and hardness. Differences in particle behavior upon impact were discussed and related to coating microstructure.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117828"},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Atmosphere-dependent in-situ ceramic whisker formation and performance enhancement in Al2O3-C refractories Al2O3-C耐火材料中随气氛变化的原位陶瓷晶须形成及性能增强

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-13 DOI: 10.1016/j.jeurceramsoc.2025.117824

Yuqi Guo , Ning Liao , Guoping He , Tianbin Zhu , Shengli Jin , Yawei Li

{"title":"Atmosphere-dependent in-situ ceramic whisker formation and performance enhancement in Al2O3-C refractories","authors":"Yuqi Guo , Ning Liao , Guoping He , Tianbin Zhu , Shengli Jin , Yawei Li","doi":"10.1016/j.jeurceramsoc.2025.117824","DOIUrl":"10.1016/j.jeurceramsoc.2025.117824","url":null,"abstract":"<div><div>Al<sub>2</sub>O<sub>3</sub>-C refractories are critical for flow control in continuous casting, yet the relationship between their structure evolution and high-temperature properties remains insufficiently understood. This study systematically investigates the synergistic effects of additives (Si, Al) and heat-treatment atmospheres (coke-bed vs. N<sub>2</sub>) on the microstructure and performance of Al<sub>2</sub>O<sub>3</sub>-C refractories. The results demonstrated that: 1) Compared to coke-bed treatment, N₂ atmosphere reduces the in-situ formation temperature of SiC and AlN whiskers by 100–200 °C, while facilitating columnar Sialon formation at 1400 °C. 2) N<sub>2</sub> treatment achieves optimal pore size distribution at 1200 °C due to accelerated whisker formation, whereas coke-bed requires 1400 °C for comparable refinement. 3) The N<sub>2</sub>-derived microstructure, featuring optimized porosity and minimized oxygen contamination, significantly improves thermal shock resistance and oxidation resistance. This work advances the understanding of <em>in-situ</em> ceramic phase formation (SiC/AlN/Sialon) and its role in tailoring the service performance of Al<sub>2</sub>O<sub>3</sub>-C refractories.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117824"},"PeriodicalIF":6.2,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Atomically dispersed Fe-Co in electrospun SiC fiber matrix for enhanced electromagnetic wave absorption and desirable thermal stability 原子分散的Fe-Co在静电纺SiC纤维基体中增强电磁波吸收和理想的热稳定性

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-13 DOI: 10.1016/j.jeurceramsoc.2025.117821

Chen Tang , Mengying Liu , Bowen Han , Jiayi Ye , Lei Dong , Xiaohang Yang , Jiaju Meng , Weiyan Wang , Zhaowei Liu , Kang Zhao , Yufei Tang

{"title":"Atomically dispersed Fe-Co in electrospun SiC fiber matrix for enhanced electromagnetic wave absorption and desirable thermal stability","authors":"Chen Tang , Mengying Liu , Bowen Han , Jiayi Ye , Lei Dong , Xiaohang Yang , Jiaju Meng , Weiyan Wang , Zhaowei Liu , Kang Zhao , Yufei Tang","doi":"10.1016/j.jeurceramsoc.2025.117821","DOIUrl":"10.1016/j.jeurceramsoc.2025.117821","url":null,"abstract":"<div><div>The aerospace industry urgently demands high-performance electromagnetic wave absorbing materials that maintain stability under extreme temperatures. In this work, Fe-Co co-doped SiC nanofibers were developed via precision electrospinning and controlled pyrolysis. An atomic-scale dispersion of Fe and Co was achieved through a metal-polymer coordination strategy. These dopants function as active sites that promote phase nucleation, while also serving as electron donors to enhance polarization loss. Subsequent tuning of doping concentration enables synergy among conductive loss, polarization loss and magnetic loss. The optimized nanofiber exhibits outstanding performance, demonstrating an RLmin of −58.49 dB at 14.88 GHz with a 1.25 mm thickness, as well as a maximum EAB of 4.77 GHz. Remarkably, the material also demonstrates desirable thermal stability in argon atmospheres up to 1200 °C, even after oxidation at 800 °C for 30 min, it retains an RLmin of −26.35 dB and EAB of 3.04 GHz. This work establishes a new paradigm in doping-induced phase engineering, providing transformative strategy for developing next-generation extreme-environment electromagnetic wave absorbers.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117821"},"PeriodicalIF":6.2,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Indium-doped BaHfO3 electrolytes with oxygen vacancies engineering for high proton conductivity and low-temperature solid oxide fuel cells 用于高质子电导率和低温固体氧化物燃料电池的掺铟BaHfO3电解质氧空位工程

IF 6.2 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-09-12 DOI: 10.1016/j.jeurceramsoc.2025.117819

Zezhong Wang , Ying Li , Wenlong Huang , Jie Zheng , Yongtao Huang

{"title":"Indium-doped BaHfO3 electrolytes with oxygen vacancies engineering for high proton conductivity and low-temperature solid oxide fuel cells","authors":"Zezhong Wang , Ying Li , Wenlong Huang , Jie Zheng , Yongtao Huang","doi":"10.1016/j.jeurceramsoc.2025.117819","DOIUrl":"10.1016/j.jeurceramsoc.2025.117819","url":null,"abstract":"<div><div>The development of electrolyte materials with high ionic conductivity at low operating temperatures (400–600 °C) remains a critical challenge for solid oxide fuel cells (SOFCs). Proton-conducting ceramics have emerged as promising candidates due to their low activation energy for proton transport, making them suitable for low-temperature SOFC applications. In this study, a series of BaHf<sub>1-<em>x</em></sub>In<sub><em>x</em></sub>O<sub>3-<em>δ</em></sub> (<em>x</em> = 0, 0.05, 0.10, 0.15, and 0.20) ceramics were synthesized via solid-state reaction. The dominant proton conductivity, accompanied by oxygen ion conduction, was confirmed through defect equilibrium model, concentration cell studies, and H/D isotope experiments. X-ray photoelectron spectroscopy (XPS) revealed that indium doping significantly enhances oxygen vacancy concentration, thereby facilitating proton conduction. Compared to undoped BaHfO<sub>3</sub>, indium doping markedly increased ionic conductivity and reduced the activation energy for grain boundary conduction. The BaHf<sub>0.85</sub>In<sub>0.15</sub>O<sub>2.925</sub> (BHI15) electrolyte exhibited a low (ASR) area-specific ohmic resistance of 0.20 Ω cm<sup>2</sup> and achieved an exceptional power output of 956 mW cm⁻² at 550 °C. These findings underscore the effectiveness of indium doping in enhancing proton conductivity, offering a viable strategy for designing high-performance electrolytes for low-temperature SOFCs.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117819"},"PeriodicalIF":6.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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