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

Understanding the effect of rare-earth doping in ABO3 ferroelectrics on capacitive energy storage 了解ABO3铁电体中稀土掺杂对电容储能的影响

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-15 DOI: 10.1016/j.jeurceramsoc.2025.117539

Yu-Lin Duan , Jian Wang , Zhong-Hui Shen , Meng-Jun Zhou , Jian-Yong Jiang , Han-Xing Liu , Ce-Wen Nan

{"title":"Understanding the effect of rare-earth doping in ABO3 ferroelectrics on capacitive energy storage","authors":"Yu-Lin Duan , Jian Wang , Zhong-Hui Shen , Meng-Jun Zhou , Jian-Yong Jiang , Han-Xing Liu , Ce-Wen Nan","doi":"10.1016/j.jeurceramsoc.2025.117539","DOIUrl":"10.1016/j.jeurceramsoc.2025.117539","url":null,"abstract":"<div><div>Rare-earth doping, even in trace amounts, can significantly regulate the energy storage performance of ferroelectric materials by synergistically adjusting microscopic behaviors such as crystal structure and energy bands. However, understanding the mechanisms by which different rare-earth elements influence the energy storage performance such as polarization and breakdown remains a major challenge. To address this, we use density functional theory to systematically investigate the effect of rare-earth doping on the microscopic ferroelectric behavior in three ABO<sub>3</sub> perovskite ferroelectrics by substituting <em>A</em>-site or <em>B</em>-site ions with 15 types of rare-earth ions. The results show that when introducing rare-earth ions, lattice structure and electronic state distribution can be rebuilt due to strong volume effect and hybridization, thereby altering the ion displacement polarization, reversal energy barrier, and energy gap. Notably, their effects highly depend on the occupancy of rare-earth ions on the <em>A</em>-site or <em>B</em>-site. For <em>A</em>-site doping, a decrease in the ionic radius of rare-earth ions generally leads to increases in the <em>c</em>/<em>a</em> ratio, polarization strength, reversal energy barrier, and energy gap, whereas <em>B</em>-site doping shows the opposite trends. This work reveals the underlying mechanisms of rare-earth doping on affecting the energy storage performance and provides important theoretical guidance for engineering rare-earth doping in perovskite ferroelectrics.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117539"},"PeriodicalIF":5.8,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070589","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

The use of niobium carbide as grain growth inhibitor in WC-10Co cemented carbides 碳化铌作为晶粒生长抑制剂在WC-10Co硬质合金中的应用

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-14 DOI: 10.1016/j.jeurceramsoc.2025.117533

Alexandre Mégret, Véronique Vitry, Fabienne Delaunois

{"title":"The use of niobium carbide as grain growth inhibitor in WC-10Co cemented carbides","authors":"Alexandre Mégret, Véronique Vitry, Fabienne Delaunois","doi":"10.1016/j.jeurceramsoc.2025.117533","DOIUrl":"10.1016/j.jeurceramsoc.2025.117533","url":null,"abstract":"<div><div>A key parameter in the processing of tungsten carbide materials is the control of the grain growth during the sintering stage. To limit the grain coarsening, grain growth inhibitors are added during the mixing of the powders. Those are transition metal carbides (vanadium, chromium, niobium, molybdenum) that are added in small amounts. Niobium carbide is an efficient GGI and can bring enhanced fracture toughness and reasonable hardness. The influence of niobium carbide (alone or with a combination of other inhibitors) on the grain growth was studied. To ensure a good homogeneity, a two-step ball milling was carried out: the first with cobalt and inhibitors, the second with WC and the doped-cobalt powder. The powders were sintered by vacuum sintering before the characterization of mechanical properties such as hardness and toughness. Niobium carbide is found to be an effective inhibitor since the mechanical properties are superior compared to the other inhibitors. Hardness and fracture toughness are 1858 ± 31 HV<sub>30</sub> and 9.8 ± 0.2 MPa√m for NbC alone and 1930 ± 22 HV<sub>30</sub> and 9.4 ± 0.3 MPa√m for the mixture NbC+Cr<sub>3</sub>C<sub>2</sub> respectively.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117533"},"PeriodicalIF":5.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068856","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

Fabrication, spectroscopy, and laser operation of Nd:LuScO3 transparent ceramics Nd:LuScO3透明陶瓷的制备、光谱学和激光操作

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-14 DOI: 10.1016/j.jeurceramsoc.2025.117537

Fangliang Shen , Bingheng Sun , Conghui Huang , Yin Hang , Benxue Jiang , Jintai Fan , Long Zhang

引用次数: 0

High-power piezoelectric ceramics with superior figure-of-merits through tailored grain engineering 高功率压电陶瓷，通过量身定制的颗粒工程，具有优越的性能

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-14 DOI: 10.1016/j.jeurceramsoc.2025.117536

Dong-Gyu Lee , Yi Yeon Kim , Hyun Soo Kim , Minwoo Kim , Tae Kyoung Yoon , Xukun Su , Iman M. Imani , Il-Ryeol Yoo , Sunghoon Hur , Heemin Kang , Sahn Nahm , Yongke Yan , Chong-Yun Kang , Jeong Min Baik , Kyung-Hoon Cho , Hyun-Cheol Song

{"title":"High-power piezoelectric ceramics with superior figure-of-merits through tailored grain engineering","authors":"Dong-Gyu Lee , Yi Yeon Kim , Hyun Soo Kim , Minwoo Kim , Tae Kyoung Yoon , Xukun Su , Iman M. Imani , Il-Ryeol Yoo , Sunghoon Hur , Heemin Kang , Sahn Nahm , Yongke Yan , Chong-Yun Kang , Jeong Min Baik , Kyung-Hoon Cho , Hyun-Cheol Song","doi":"10.1016/j.jeurceramsoc.2025.117536","DOIUrl":"10.1016/j.jeurceramsoc.2025.117536","url":null,"abstract":"<div><div>This study highlights the optimization of Mn-doped (1-x)Pb(Mg<sub>2/3</sub>Nb<sub>1/3</sub>O<sub>3</sub>-xPbTiO<sub>3</sub> (PMN-PT) ceramics for high-power piezoelectric applications through a combination of (001) grain texturing with BaTiO<sub>3</sub> seed and oxygen atmosphere sintering. The synergistic effects of Mn-induced domain-pinning and grain alignment significantly improved both the soft and hard piezoelectric properties. Optimized ceramics achieved a piezoelectric coefficient (<em>d</em><sub><em>33</em></sub>) of 455 pC/N and a mechanical quality factor (<em>Q</em><sub><em>m</em></sub>) of 1466, demonstrating high-performance potential. Oxygen sintering reduced porosity, further boosting mechanical stability and piezoelectric response. High-power performance tests confirmed these advancements, achieving a maximum vibration velocity of 0.45 m/s. This study underscores the potential of combining texturing and defect control to develop high-performance piezoelectric materials tailored for advanced applications in high-frequency and high-power devices.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117536"},"PeriodicalIF":5.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116777","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

The oxidation resistance and plasma ablation performance at 3000 K of HfC-TiC ultra-high temperature ceramics HfC-TiC超高温陶瓷在3000 K下的抗氧化性能和等离子烧蚀性能

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.2025.117530

Wenjing Luo , Hongting Tang , Rong Li , Bangbang Liu , Baojiong Hu , Qiang Zhen

{"title":"The oxidation resistance and plasma ablation performance at 3000 K of HfC-TiC ultra-high temperature ceramics","authors":"Wenjing Luo , Hongting Tang , Rong Li , Bangbang Liu , Baojiong Hu , Qiang Zhen","doi":"10.1016/j.jeurceramsoc.2025.117530","DOIUrl":"10.1016/j.jeurceramsoc.2025.117530","url":null,"abstract":"<div><div>Ultra-high-temperature ceramics (UHTCs), owing to their exceptional performance under extreme heat and harsh conditions, have become the preferred choice for critical thermal protection materials in high-speed aerospace vehicles. Here, the HfC-TiC ceramics were fabricated through pressureless sintering, and its oxidation behaivor was investigated using non-isothermal method. The oxidation activation energy of HfC-TiC sample reaches 385.39 kJ/mol. Then the ablation behavior of HfC-TiC ceramics was tested under plasma ablation conditions (3000 K, 5.0 MW/m<sup>2</sup>). The mass ablation rate and linear ablation rate of HfC-TiC can reach −1.11 × 10<sup>−3</sup> g·s<sup>−1</sup> and −1.40 × 10<sup>−3</sup> mm·s<sup>−1</sup> after being ablated for 300 seconds, respectively. The oxide layers in the center consisted of a porous oxide upper layer, a dense Ti-enriched intermediate layer, and an oxide inner layer. This complex multi-layered oxidative configuration synergistically protected the underlying carbide matrix, significantly enhancing the ablation resistance of HfC-TiC ceramics.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117530"},"PeriodicalIF":5.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107261","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

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