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}
Jun Hui , Min Liu , Shuo Wang , Jia Peng Chen , Biao Wang
{"title":"Formation of a helium-bubble-free region in irradiated SiC via Mg ion implantation: Irradiation experiments combined with first-principles calculations","authors":"Jun Hui , Min Liu , Shuo Wang , Jia Peng Chen , Biao Wang","doi":"10.1016/j.jeurceramsoc.2025.117825","DOIUrl":"10.1016/j.jeurceramsoc.2025.117825","url":null,"abstract":"<div><div>We unveiled the following findings: i) Mg implantation leads to the disappearance of 468 nm He bubbles in its vicinity, whereas He bubbles in Mg-free samples accumulate on the irradiated surface. The addition of Mg reduces the Raman peak shift induced by He irradiation, mitigating bond contraction. ii) The superiority of Mg lies in its ability to maintain the stability of SiC bonds and mechanical strength. He distorts and destabilizes the short-range lattice, causing neighbor instability. Atomic undercoordination by He and vacancy formation shorten the nearest Si–C bonds, leading to a dense electron and energy shell, which may contribute to irradiation-induced hardening. iii) The two abnormal density of states polarization peaks of He are attributed to neighbor instability and non-bonding states, while vacancies exhibit only polarization peaks. Mg does not alter the bandgap or Fermi level of SiC.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117825"},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106054","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}
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}
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}
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}
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}
{"title":"First Ga2Se3 infrared transparent chalcogenide ceramics","authors":"Mathieu Chevereau , Emmanuel Véron , Séverine Brassamin , David Le Coq , Laurent Calvez , Xiang-Hua Zhang , Louisiane Verger , Sébastien Chenu","doi":"10.1016/j.jeurceramsoc.2025.117823","DOIUrl":"10.1016/j.jeurceramsoc.2025.117823","url":null,"abstract":"<div><div>Fully dense infrared (IR) transparent chalcogenide ceramics were obtained from densification of Ga<sub>2</sub>Se<sub>3</sub> crystalline powder by Spark Plasma Sintering (SPS) under vacuum. Promising results were attained such as a maximum transmission of 63 % at λ = 11 µm, close to the maximum value of transmittance previously measured for single crystals, a wide transparency spectral range (4–16 µm), and a refractive index of 2.58 at λ = 1.55 µm. Electron Back Scattered Diffraction (EBSD) was used to elucidate grain microstructure, showing randomly oriented particles and a bimodal grain size distribution. These ceramics exhibit expected mechanical properties for selenide materials with a Vickers hardness of 287 kg/mm² and a Young’s modulus of 52 GPa.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117823"},"PeriodicalIF":6.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046209","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}
Zitao Shi , Xiao Zhang , Aopu Zhang , Shuren Zhang , Bin Tang
{"title":"Achieving ultra-high Q×f values in Y2O3 ceramics by Sm substitution and enhancing electrical insulation","authors":"Zitao Shi , Xiao Zhang , Aopu Zhang , Shuren Zhang , Bin Tang","doi":"10.1016/j.jeurceramsoc.2025.117822","DOIUrl":"10.1016/j.jeurceramsoc.2025.117822","url":null,"abstract":"<div><div>Reducing the dielectric loss of Y<sub>2</sub>O<sub>3</sub> ceramics is crucial for enhancing their performance in high-frequency communication applications. In this study, Y<sub>2-<em>x</em></sub>Sm<sub><em>x</em></sub>O<sub>3</sub> (0 ≤<em>x</em> ≤ 2) ceramics were sintered using a one-step method within a temperature range of 1475°C to 1750°C. The phase composition of the system varies with <em>x</em>: cubic (0 ≤<em>x</em> ≤ 0.8), dual-phase (0.8˂<em>x</em> ≤ 1.2), and monoclinic (1.2 <<em>x</em> ≤ 2). The bond valence of Y atoms decreases from 2.8967 <em>v</em>.<em>u</em>. (<em>x</em> = 0) to 2.6819 <em>v</em>.<em>u</em>. (<em>x</em> = 0.8), resulting in an increase in the <em>ε</em><sub><em>r</em></sub> from 10<em>.</em>8–12.3. The Y<sub>1.6</sub>Sm<sub>0.4</sub>O<sub>3</sub> ceramic (<em>ε</em><sub><em>r</em></sub>=11.9 ± 0<em>.</em>4, <em>τ</em><sub><em>f</em></sub>=−44.9 ± 0.5 ppm/°C) achieves an ultra-high Q×<em>f</em> value of 164,176 ± 5750 GHz at 12.2 GHz. Complex impedance spectroscopy analysis reveals a strong correlation between the conductive activation energy (<em>E</em><sub><em>a</em></sub>) and the Q×<em>f</em> values. Compared to Y<sub>2</sub>O<sub>3</sub> ceramics (<em>E</em><sub><em>a</em></sub>=1.66 eV), Y<sub>1.6</sub>Sm<sub>0.4</sub>O<sub>3</sub> ceramic exhibits a higher <em>E</em><sub><em>a</em></sub> (1.91 eV), suggesting that the improved insulating properties in this system contribute to its low dielectric loss.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117822"},"PeriodicalIF":6.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145118098","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}
{"title":"Enhancement of photoelectrochemical responses via annealing of air-based sputtered TiN films in controlled atmospheres","authors":"Guan-Sheng Wang, Xin-Xian Yang, Fu-Hsing Lu","doi":"10.1016/j.jeurceramsoc.2025.117817","DOIUrl":"10.1016/j.jeurceramsoc.2025.117817","url":null,"abstract":"<div><div>This study demonstrates the significant enhancement of the photoelectrochemical performance of air-based sputter-deposited TiN films via annealing in an N<sub>2</sub>/H<sub>2</sub> atmosphere. For comparison, the films were also annealed in air and N<sub>2</sub>, with all three atmospheres subjected to varying nitrogen/oxygen partial pressures. X-ray diffraction results showed that the relative intensities of rutile TiO<sub>2</sub> increased with decreasing the nitrogen/oxygen partial pressures. The preferred orientation of TiO<sub>2</sub> shifted from (101) in air and N<sub>2</sub> to a stable (110) in N<sub>2</sub>/H<sub>2</sub>, facilitating the formation of faceted TiO<sub>2</sub>. An optimal photocurrent density of 3650 ± 160 µA/cm<sup>2</sup> was achieved at 1000 °C for 5 h in N<sub>2</sub>/H<sub>2</sub>, surpassing values reported in the literature. The enhanced performance is attributed to large-faceted TiO<sub>2</sub> grains, oxygen vacancies in TiO<sub>2</sub>, and synergistic effects of low resistivity and plasmonic properties of TiN. This facile approach offers a promising strategy for advancing photoelectrochemical applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 2","pages":"Article 117817"},"PeriodicalIF":6.2,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061050","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}