Journal of The European Ceramic Society最新文献_第6页

Fabrication of dense Cr₃AlB₄ polycrystals via pressure-assisted reactive sintering 压力辅助反应烧结制备致密Cr₃AlB₄多晶

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-13 DOI: 10.1016/j.jeurceramsoc.2025.117532

Jan Słomiński, Sebastian Komarek, Kamil Kornaus, Norbert Moskała, Agnieszka Różycka, Dariusz Zientara, Agnieszka Gubernat

{"title":"Fabrication of dense Cr₃AlB₄ polycrystals via pressure-assisted reactive sintering","authors":"Jan Słomiński, Sebastian Komarek, Kamil Kornaus, Norbert Moskała, Agnieszka Różycka, Dariusz Zientara, Agnieszka Gubernat","doi":"10.1016/j.jeurceramsoc.2025.117532","DOIUrl":"10.1016/j.jeurceramsoc.2025.117532","url":null,"abstract":"<div><div>This research investigates the synthesis of Cr₃AlB₄, a member of the MAB phase family, using the hot pressing (HP) method. Cr₃AlB₄ exhibits a combination of ceramic-like hardness and metal-like damage tolerance, making it valuable for applications in extreme environments. However, its synthesis is challenging due to phase transitions involving precursors. The study evaluates the influence of reaction sintering and annealing time on phase formation, grain growth, and material stability.</div><div>The results show that HP yields materials with over 80 % Cr₃AlB₄ phase content, but prolonged annealing leads to its decomposition into Cr₃B₄, which causes microstructural changes and grain cracking. Cracking is attributed to the differences in thermal expansion coefficients between Cr₃AlB₄ and other phases, leading to stress accumulation during cooling. To optimize the synthesis process, the study recommends controlling grain size and using non-reactive sintering additives to limit grain growth.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117532"},"PeriodicalIF":5.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116779","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

Coaxially 3D-printed ceramic scaffolds for thermal energy storage applications 用于热能储存应用的同轴3d打印陶瓷支架

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-13 DOI: 10.1016/j.jeurceramsoc.2025.117531

L. Moreno-Sanabria, I. Díaz-Herrezuelo, M.I. Osendi, M. Belmonte, P. Miranzo

引用次数: 0

Phase composition and temperature dependence of Young’s modulus and damping of natural basalt and its melt cast product 天然玄武岩及其熔铸产物杨氏模量和阻尼的相组成和温度依赖性

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-13 DOI: 10.1016/j.jeurceramsoc.2025.117529

Eva Gregorová , Willi Pabst , Petra Šimonová , Lucie Kotrbová , Petr Bezdička

引用次数: 0

A phase field model for cold sintering of barium titanate 钛酸钡冷烧结相场模型

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-13 DOI: 10.1016/j.jeurceramsoc.2025.117534

Kamalpreet Singh, Alessandro Leronni, Chris R. Bowen, James Roscow

引用次数: 0

Lightweight SiCN ceramics doped with rare earth elements for electromagnetic wave absorption and infrared stealth 用于电磁波吸收和红外隐身的稀土轻量化SiCN陶瓷

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-13 DOI: 10.1016/j.jeurceramsoc.2025.117528

Chang Liu , Kaidi Mao , Hang Teng , Rui Zhang , Haibin Sun , Qiangqiang Hu , Cuncheng Li , Hongyu Gong , Paolo Colombo , Xue Guo , Yurun Feng

引用次数: 0

Exploring the dielectric properties, glass ability and ferroelectric phases in the BaO-Bi2O3-TiO2-B2O3-Al2O3 system 探索BaO-Bi2O3-TiO2-B2O3-Al2O3体系的介电性能、玻璃化性能和铁电相

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-12 DOI: 10.1016/j.jeurceramsoc.2025.117527

Hongyi Deng , Lixu Xie , Alexander Martin , Kyle G. Webber , Dominique de Ligny , Maria Rita Cicconi

{"title":"Exploring the dielectric properties, glass ability and ferroelectric phases in the BaO-Bi2O3-TiO2-B2O3-Al2O3 system","authors":"Hongyi Deng , Lixu Xie , Alexander Martin , Kyle G. Webber , Dominique de Ligny , Maria Rita Cicconi","doi":"10.1016/j.jeurceramsoc.2025.117527","DOIUrl":"10.1016/j.jeurceramsoc.2025.117527","url":null,"abstract":"<div><div>In this study, Bi- and Ti-rich glasses have been designed and investigated for the development of ferroelectric glass-ceramics (GCs). The glass formation range, the structure of the glass network and the crystalline phases obtained in the glass-ceramics were explored. Glass compositions within the <em>x</em>BaO-(90-<em>x</em>)(40Bi<sub>2</sub>O<sub>3</sub>-25TiO<sub>2</sub>-35B<sub>2</sub>O<sub>3</sub>)-10Al<sub>2</sub>O<sub>3</sub> system were synthesized through rapid press quenching of the melt, with a controlled melting temperature of 1000°C. Raman spectroscopy was carried out to investigate the impact of Bi<sub>2</sub>O<sub>3</sub>, TiO<sub>2</sub> and BaO on the arrangement of the structural units in these glasses. Subsequent thermal treatment in the temperature range of 500–700°C led to the formation of glass-ceramics containing the ferroelectric Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub> crystal phase in all compositions. Notably, glass-ceramics containing 10–16 mol% of BaO exhibited a single Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub> crystal phase upon complete crystallization. The microstructure and temperature-dependent dielectric properties of glasses and GCs were investigated as a function of the Ba content. The permittivity <em>ε</em><sub><em>r</em></sub> of the glasses is quite high compared to other glass systems, ranging between 22 and 28, and it is greatly increased in the crystallized samples (up to 70). Furthermore, no phase transitions up to 300 °C are observed, especially in GCs with a single Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub> crystal phase, making these materials strong candidates for energy storage dielectrics. The samples developed in this study demonstrate the potentiality of obtaining piezoelectric glass-ceramics in network former-poor matrices.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117527"},"PeriodicalIF":5.8,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107258","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

Environmental response characteristics of substoichiometric ZrCx exposed to inductively coupled air plasma 亚化学计量ZrCx暴露于电感耦合空气等离子体的环境响应特性

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-10 DOI: 10.1016/j.jeurceramsoc.2025.117491

Matthew T. Konnik , Lorenzo Capponi , Trey Oldham , Francesco Panerai , Kelly A. Stephani

{"title":"Environmental response characteristics of substoichiometric ZrCx exposed to inductively coupled air plasma","authors":"Matthew T. Konnik , Lorenzo Capponi , Trey Oldham , Francesco Panerai , Kelly A. Stephani","doi":"10.1016/j.jeurceramsoc.2025.117491","DOIUrl":"10.1016/j.jeurceramsoc.2025.117491","url":null,"abstract":"<div><div>An inductively coupled plasma jet was used to elucidate fundamental response characteristics of substoichiometric zirconium carbide in a hypersonic-relevant environment. Specimens were subjected to high-enthalpy air at surface temperatures between 1850 and 2525 °C. Corrosion progressed linearly, though the most extreme condition exhibited diffusion-limiting behavior. Surface cracking shifted to porosity at higher temperatures, potentially indicating a shift in gas exchange character. Spectral emittance and optical bandgap differences were attributed to nitrogen, carbonates, and surface annealing. Bulk scale porosity decreased and developed gradients at higher temperatures. Final reaction products were identified as oxides and oxynitrides, while interfaces included oxynitrides, oxycarbides, carbonitrides, and carbon at lower temperatures. Plasma dwell time influenced local electron density of zirconium, possibly due to vacancies mediated by high temperatures and free electrons. This analysis quantifies high degrees of spatial and temporal dependence of composition and microstructure, necessitating multiphysics testing for efficient design and innovation of refractories for hypersonics.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117491"},"PeriodicalIF":5.8,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135036","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

Preparation of Ti3+ self-doped Li4Ti5O12 as high-performance anode for lithium ion batteries 高性能锂离子电池负极Ti3+自掺杂Li4Ti5O12的制备

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-09 DOI: 10.1016/j.jeurceramsoc.2025.117525

Enci Jin, Qiushi Song, Hongwei Xie, Zhiqiang Ning, Yu Kai

引用次数: 0

Investigating the effect of spark plasma sintering temperature and post-sintering annealing in LiNi0.5Mn1.5O4 for its ideal design towards practical battery applications 研究火花等离子烧结温度和烧结后退火对LiNi0.5Mn1.5O4的影响，使其在电池中的理想设计更接近实际应用

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-09 DOI: 10.1016/j.jeurceramsoc.2025.117524

Jon G. Bell , Rishabh Shukla , Shangxiong Huangfu, Michael Stuer

{"title":"Investigating the effect of spark plasma sintering temperature and post-sintering annealing in LiNi0.5Mn1.5O4 for its ideal design towards practical battery applications","authors":"Jon G. Bell , Rishabh Shukla , Shangxiong Huangfu, Michael Stuer","doi":"10.1016/j.jeurceramsoc.2025.117524","DOIUrl":"10.1016/j.jeurceramsoc.2025.117524","url":null,"abstract":"<div><div>In this work, the effect of spark plasma sintering (SPS) and post-annealing in pure Ar and O<sub>2</sub> on structure, ac/dc-conductivity, impedance, and electronic properties of LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> (LNMO) are investigated, which establish a roadmap for the design of an ideal compound. Structural analysis using XRD reveals that the unit cell volume increases with SPS temperature and post-annealing in Ar and decreases in O<sub>2</sub> due to a reduction in oxygen vacancies. The dc-conductivity shows the dominance of SPH conduction up to 200 K, while Mott-VRH conduction prevails until 168 K. Frequency dispersion modeling of ac-conductivity (σ<sub>ac</sub>) with modified JPL supports the NSPT model, and scaling of σ<sub>ac</sub> follows the modified Summerfield model. In addition, DRT clearly distinguishes grain, grain boundary, interfacial, and electrode contributions and shows that post-annealing in Ar(O<sub>2</sub>) can be effectively used to increase(decrease) the grain and grain boundary resistance, which can be utilized to design and property-tune LNMO for practical applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117524"},"PeriodicalIF":5.8,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934986","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

Enhancing proton-conducting solid oxide fuel cell performance with Pr-doped BaZr0.5Fe0.5O3-δ cathodes

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-09 DOI: 10.1016/j.jeurceramsoc.2025.117526

Zhaoling Wei , Juan Liu , Jinhuai Wang , Zhiwen Zhu , Zhihao Wang , Lei Bi

{"title":"Enhancing proton-conducting solid oxide fuel cell performance with Pr-doped BaZr0.5Fe0.5O3-δ cathodes","authors":"Zhaoling Wei , Juan Liu , Jinhuai Wang , Zhiwen Zhu , Zhihao Wang , Lei Bi","doi":"10.1016/j.jeurceramsoc.2025.117526","DOIUrl":"10.1016/j.jeurceramsoc.2025.117526","url":null,"abstract":"<div><div>Developing high-performance cathodes remains crucial for advancing proton-conducting solid oxide fuel cells (H-SOFCs). While Fe-doped BaZrO<sub>3</sub> (BZF), derived from the proton conductor BaZrO<sub>3</sub>, demonstrates moderate performance, it underperforms compared to recently reported cathodes. To address this limitation, we introduce Pr as a co-dopant in BZF, creating BaZr<sub>0.4</sub>Fe<sub>0.5</sub>Pr<sub>0.1</sub>O<sub>3</sub> (BZFPr). Pr-doping induces electronic structure modifications that weaken metal-oxygen bonds, generating abundant oxygen vacancies and enhancing protonation capabilities. These changes synergistically improve oxygen and proton diffusion kinetics. Furthermore, Pr doping elevates the oxidation state of Fe, significantly boosting oxygen reduction reaction (ORR) activity. After microstructural optimization, BZFPr achieves exceptional performance with a peak power density of 1686 mW cm<sup>−2</sup> and a low polarization resistance of 0.059 Ω cm<sup>2</sup> at 700 °C—values surpassing most state-of-the-art cathodes. The BZFPr cathode also exhibits remarkable operational stability under fuel cell conditions, establishing Pr doping as an effective strategy for developing high-performance, durable cathodes for H-SOFCs.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117526"},"PeriodicalIF":5.8,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942879","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