Journal of The European Ceramic Society最新文献

{"title":"Transparent ceramics by cold sintering process – Challenges and opportunities","authors":"Vojtěch Nečina","doi":"10.1016/j.jeurceramsoc.2025.117519","DOIUrl":"10.1016/j.jeurceramsoc.2025.117519","url":null,"abstract":"<div><div>Cold sintering has become increasingly popular in ceramic sciences thanks to its simplicity and energy efficiency. However, is this technique suitable for preparation of transparent ceramics as well? The present paper aims to provide a review of the available literature about the preparation of transparent ceramics by cold sintering process, followed by a discussion of relevant parameters (temperature, pressure, dwell time and liquid phase type and content) and key aspects (mechanisms) of the process. Additionally, novel results concerning preparation of transparent rock salt (NaCl) ceramics are presented as a proof of concept.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117519"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942878","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":"Atomic migration behavior of Ta4HfC5-SiBCN ceramics sintered by hot-pressing","authors":"Jingyi Guan ,&nbsp;Daxin Li ,&nbsp;Bo Wang ,&nbsp;Zhihua Yang ,&nbsp;Ning Cao ,&nbsp;Ling Li ,&nbsp;Yingying Wang ,&nbsp;Dechang Jia ,&nbsp;Yu Zhou","doi":"10.1016/j.jeurceramsoc.2025.117510","DOIUrl":"10.1016/j.jeurceramsoc.2025.117510","url":null,"abstract":"<div><div>Ultra-high temperature ceramics matrix composites have great potential for application in the aerospace. However, the effects of atomic diffusion behavior on the properties are not clear. This work focuses on the diffusion behavior of Ta₄HfC₅-SiBCN multilayer gradient ceramics with meshing structure sintered by hot-pressing sintering. The order of atomic interdiffusion coefficients is Hf&gt; Ta&gt; Si, corresponding to (17.03 ± 8.15), (14.38 ± 5.67) and (10.71 ± 2.88) × 10⁻¹⁸ m²/s, respectively. Moreover, the atomic migration behavior between Ta₄HfC₅ and SiBCN was studied based on first principles. The results show that the vacancy migration energy of Ta atoms in SiC is 0.92 eV, which is greater than that of Hf atoms with 0.18 eV. In addition, Hf atoms promotes vacancy diffusion of Si atoms in the TaC lattice. This work provides data support for the exploration of basic research and diffusion mechanisms.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117510"},"PeriodicalIF":5.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924881","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":"Digital light processing of ceria-stabilized zirconia: Role of powder pre-treatment on printability and physico-mechanical properties","authors":"Bartolomeo Coppola,&nbsp;Elisa Fiume,&nbsp;Vanessa Terranova,&nbsp;Laura Montanaro,&nbsp;Paola Palmero","doi":"10.1016/j.jeurceramsoc.2025.117512","DOIUrl":"10.1016/j.jeurceramsoc.2025.117512","url":null,"abstract":"<div><div>In this study, the role of pre-treatment of a ceria-stabilized zirconia powder on slurry printability in Digital Light Processing as well as on density, microstructural features and flexural strength of the sintered materials was investigated. Three powder batches, namely un-milled, ball-milled, and ball-milled and thermally post-treated were compared. Ball-milling induced tetragonal-to-monoclinic phase transformation and the appearance of oxygen vacancies. The thermal post-treatment was effective in restoring a higher tetragonal phase content and the starting cerium oxidation state. Slurries with a fixed solid loading (41 vol%) and variable amounts of dispersant were prepared. Different curing behaviors and, consequently, different qualities of the printed parts were observed. The milled and thermally treated powder was used to produce high-density sintered materials characterized by submicrometric grains (≅ 600 nm) and high flexural strength (≅ 560 MPa).</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117512"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934987","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":"Enhanced ferroelectricity in Bi2WO6/CoFe2O4 magnetoelectric composite ceramic with coherent interfaces","authors":"Shaojie Sun ,&nbsp;Huijiadai Luo ,&nbsp;Fangzhe Li ,&nbsp;Lu Cao ,&nbsp;Jingxin Tian ,&nbsp;Hua Ke ,&nbsp;Yu Zhou","doi":"10.1016/j.jeurceramsoc.2025.117518","DOIUrl":"10.1016/j.jeurceramsoc.2025.117518","url":null,"abstract":"<div><div>We constructed coherent interfaces in (1-<em>x</em>)Bi₂WO₆-<em>x</em>CoFe₂O₄ composites (<em>x</em> = 0, 5, 10, 20, 30 mol%) magnetoelectric ceramic composites fabricated by a heterogeneous nucleation technique. In conventional magnetoelectric composites, the addition of magnetic phase usually weakens the ferroelectricity. In this work, the composite sample with coherent interfaces possesses enhanced observed ferroelectricity (<em>P</em>_r= 17.26 μC/cm²) compared to pure ferroelectric phase (<em>P</em>_r= 7.65 μC/cm²). The stress induced by coherent interfaces increases the distortion of [WO₆] octahedra in Bi₂WO₆ thereby increasing spontaneous polarization. A new mode in FT-IR spectra verifies the superlattice-like characteristics of coherent interfaces. Furthermore, an evident magnetoelectric coupling effect is identified in the composite at room temperature.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117518"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924880","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":"Air-plasma ablation behavior and mechanisms of C/C-(Zr,Hf,Ti)C composites prepared by an unidirectional RMI method","authors":"Zhiqiang Li ,&nbsp;Yalei Wang ,&nbsp;Xiang Xiong ,&nbsp;Hongbo Zhang ,&nbsp;Zhiyong Ye ,&nbsp;Zaidong Liu ,&nbsp;Junwen Liu ,&nbsp;Quanyuan Long ,&nbsp;Jinming Wang ,&nbsp;Tongqi Li","doi":"10.1016/j.jeurceramsoc.2025.117508","DOIUrl":"10.1016/j.jeurceramsoc.2025.117508","url":null,"abstract":"<div><div>(Zr,Hf,Ti)C ceramics with various components were introduced into a C/C skeleton to prepare C/C-(Zr,Hf,Ti)C composites using an unidirectional reactive melt infiltration method. A gradient distribution of Ti was observed along the infiltration direction. The microstructure and ablation behaviors of the C/C-(Zr,Hf,Ti)C composites were investigated at temperatures up to 2600 ºC. A coherent and compact oxide layer was formed on the composite containing 10 at% Ti, resulting in optimal ablation resistance with the linear ablation rate being recorded at −2.62 μm/s. Enhanced intergranular diffusion in solid-oxide, facilitated by a suitable amount of liquid phase within the grain boundary, contributes to the superior mechanical erosion resistance of the dense layer. A deficient or excessive amount of liquid phase is believed to escalate the formation of cracks and voids, thereby diminishing the ablation resistance under high-speed air-plasma conditions.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117508"},"PeriodicalIF":5.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912915","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":"High-pressure spark plasma sintering and mechanical properties of dense uranium hydride consisting of β-UH3 and UH2","authors":"Hui He ,&nbsp;Zhiyi Wang ,&nbsp;Bingqing Li ,&nbsp;Penghui Xiong ,&nbsp;Qiqi Huang ,&nbsp;Jun Chen ,&nbsp;Wenhua Luo ,&nbsp;Zhenliang Yang ,&nbsp;Rui Gao ,&nbsp;Mingfu Chu ,&nbsp;Haoxi Wu","doi":"10.1016/j.jeurceramsoc.2025.117509","DOIUrl":"10.1016/j.jeurceramsoc.2025.117509","url":null,"abstract":"<div><div>Uranium hydride (UH_3-<em>x</em>) has the nature of physical disintegration and thermal decomposition. In this study, dense UH_3-x consisting of β-UH₃ and UH₂ is synthesized via high-pressure spark plasma sintering (HPSPS) under high-temperature exceeding conventional thermal dehydrogenation thresholds. The implementation of 700 MPa uniaxial pressure during sintering effectively suppresses thermal decomposition (β-UH₃ → α-U). Sintering temperatures above 600 °C are essential to achieve full densification and crack mitigation. Significantly, an unreported β-UH₃ → UH₂ phase transition is discovered, providing novel insights into metastable phase evolution within the U-H system and establishing a direct synthesis pathway for UH₂. Finally, the mechanical properties of dense UH_3-<em>x</em> are experimentally measured.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117509"},"PeriodicalIF":5.8,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904313","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":"Comparative investigation on the thermal aging behavior of the plasma sprayed coatings of La0.25Nd0.25Sm0.25Gd0.25MgAl11O19 and LaMgAl11O19","authors":"Huajun Li ,&nbsp;Wenjie Zhou ,&nbsp;Guisheng Zhu ,&nbsp;Xiaolong Chen ,&nbsp;Xiancheng Zhang ,&nbsp;Xueqiang Cao ,&nbsp;Zuhair S. Khan","doi":"10.1016/j.jeurceramsoc.2025.117507","DOIUrl":"10.1016/j.jeurceramsoc.2025.117507","url":null,"abstract":"<div><div>High-entropy LnMgAl₁₁O₁₉ (Ln = La, Nd, Sm, Gd; LnMA) and LaMgAl₁₁O₁₉ (LaMA) powders were successfully synthesized via solid-state reactions. This study primarily investigates the changes in recrystallization behavior during thermal aging of plasma-sprayed LnMA coatings compared to LaMA coatings. The results demonstrate that thermal aging at temperatures ranging from 800°C to 1200°C leads to the formation of various nanostructures in the LnMA coatings, including nano-equiaxed grains, nano-layered crystals, and high-aspect-ratio subgrains. This behavior contrasts sharply with the recrystallization observed in LaMA coatings. The differences in grain size during recrystallization are attributed to the high-entropy diffusion retardation effect in the LnMA coatings, which significantly influences the overall performance of the coatings. Notably, after aging for 100 h at 1400°C, the thermal expansion coefficient of the LnMA coatings closely matches that of sintered LnMA bulk material and exceeds that of LaMA bulk material. This indicates superior thermophysical and mechanical properties for the LnMA coatings. To further explore the performance differences, phase stability between the LnMA and LaMA coatings was compared using simultaneous thermal analysis and X-ray diffraction. Additionally, the microstructural and mechanical property changes of both coatings during thermal aging were investigated through scanning electron microscopy (SEM) and nanoindentation measurements, with a particular focus on the recrystallization mechanisms in the amorphous coatings. This study demonstrates that LnMA coatings offer superior structural integrity and mechanical performance in high-temperature service environments.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117507"},"PeriodicalIF":5.8,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906885","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":"A perspective on ceramic recycling","authors":"Stephan Sarner ,&nbsp;Olivier Guillon","doi":"10.1016/j.jeurceramsoc.2025.117511","DOIUrl":"10.1016/j.jeurceramsoc.2025.117511","url":null,"abstract":"<div><div>Enabling the transformation of the current linear economy into a circular one, different strategies such as reuse and recycling must be integrated as fundamental aspects in the design of new products and the handling of those already in use. Ceramics are particularly stable materials and ceramic components usually have long lifetimes, contributing to sustainability. Due to the growing relevance of ceramics and their high embodied energy they are worth being recycled, independently from the presence of critical elements. We present the current state of ceramic recycling, highlighting recent progress. We also discuss about the challenges associated with establishing sustainable practices and provide an outlook on the opportunities ahead.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117511"},"PeriodicalIF":5.8,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912913","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":"Stacking faults toughened SiC ceramics formed by FSPS induced grain deformation","authors":"Jian Zhao ,&nbsp;Zhitong Xu ,&nbsp;Zefan Yan,&nbsp;Bowen Li,&nbsp;Malin Liu,&nbsp;Xu Yang,&nbsp;Jiaxing Chang,&nbsp;Hao Yu,&nbsp;Yu Yang,&nbsp;Youlin Shao,&nbsp;Bing Liu,&nbsp;Rongzheng Liu","doi":"10.1016/j.jeurceramsoc.2025.117499","DOIUrl":"10.1016/j.jeurceramsoc.2025.117499","url":null,"abstract":"<div><div>This study innovatively combines flash spark plasma sintering (FSPS) with aluminum (Al) sintering additive to introduce high-density stacking faults (SFs) and nanotwins into macroscopic SiC ceramic bulk through lattice doping and plastic deformation, thus breaking the \"strength-toughness\" dilemma. The experiments show that the fracture toughness of the ceramic reaches 12.77 MPa·m^1/2and the flexural strength reaches 696.76 MPa, which are 3–4 times and twice as high as those of the spark plasma sintering (SPS) samples under the same conditions, respectively. The mechanism indicates that Al diffuses into the SiC lattice under electric field drive, promoting low-temperature densification and inducing grain deformation to generate SFs, thereby enhancing toughness through nanoscale crack deflection and multi-level energy dissipation. This method provides a new paradigm for the strengthening and toughening of covalent ceramics, enabling the achievement of high toughness while maintaining high strength, and has the potential to be extended to other ceramic systems.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117499"},"PeriodicalIF":5.8,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906921","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":"Microstructure and coloration mechanism of Yue celadon of Three Kingdoms and Western Jin Dynasties (220–316 CE)","authors":"Jiali Zhang ,&nbsp;Xiaoling Gao ,&nbsp;Shihang Wang ,&nbsp;Yu Li ,&nbsp;Shuang Wu ,&nbsp;Bo Wu ,&nbsp;Bin Zhang","doi":"10.1016/j.jeurceramsoc.2025.117477","DOIUrl":"10.1016/j.jeurceramsoc.2025.117477","url":null,"abstract":"<div><div>Yue celadon in the Three Kingdoms and Western Jin Dynasties, unearthed from Fenghuangshan kiln site in China, is a representative of early mature porcelain, reflecting the highest level of porcelain production at that time. It plays an important role in studying the evolution of the manufacturing technology of Yue celadon. Here, for such early Yue celadon, the microstructure and coloration mechanism, as well as composition characteristics, were comprehensively investigated by external-beam proton-induced X-ray emission (PIXE), optical microscope (OM), scanning electron microscopy coupled with X-ray energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), Mössbauer spectroscopy, X-ray absorption fine structure (XAFS), and UV–Vis-NIR spectrophotometry. The results show that the celadon glaze of Fenghuangshan is very thin (<span><math><mo>∼</mo></math></span> <span><math><mrow><mn>100</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>), containing round bubbles. And the glaze belongs to the calcium glaze, with quartz and a small amount of anorthite crystals. The phases of the body include quartz and mullite. Iron, as a colorant in glaze, exists in the +2 and +3 valence states, and forms the octahedral coordination structures (<span><math><msubsup><mrow><mi>Fe</mi></mrow><mrow><mi>oct</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msubsup></math></span> and <span><math><msubsup><mrow><mi>Fe</mi></mrow><mrow><mi>oct</mi></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msubsup></math></span>) bonding with oxygen, which was firstly discovered. The coloration of glaze is affected by the d-d transitions of <span><math><msubsup><mrow><mi>Fe</mi></mrow><mrow><mi>oct</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msubsup></math></span> and <span><math><msubsup><mrow><mi>Fe</mi></mrow><mrow><mi>oct</mi></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msubsup></math></span>. With increasing Fe^2＋/Fe^3＋ ratios, the glaze color changes from yellowish-green to bluish-green. The bluish-green color was fired under a reducing atmosphere, whereas the yellowish-green color was fired under an oxidizing atmosphere. It provides a new insight for studying the microstructure and coloration mechanism of Yue celadon.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 13","pages":"Article 117477"},"PeriodicalIF":5.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917926","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}