Journal of The European Ceramic Society最新文献_第3页

Abnormal change in dielectric constant of BaTiO3 -based ceramics caused by light irradiation: Key role of temperature 光照射引起的BaTiO3基陶瓷介电常数异常变化：温度的关键作用

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-27 DOI: 10.1016/j.jeurceramsoc.2025.117565

Peng-yu Wang , Xiao-ming Chen , Han-li Lian , Neng Qin , Tian-feng Xu , Xu-mei Zhao , Peng Liu

{"title":"Abnormal change in dielectric constant of BaTiO3 -based ceramics caused by light irradiation: Key role of temperature","authors":"Peng-yu Wang , Xiao-ming Chen , Han-li Lian , Neng Qin , Tian-feng Xu , Xu-mei Zhao , Peng Liu","doi":"10.1016/j.jeurceramsoc.2025.117565","DOIUrl":"10.1016/j.jeurceramsoc.2025.117565","url":null,"abstract":"<div><div>Change in dielectric constant of dielectric materials caused by light irradiation is called as photo-dielectric effect (PDE), which is very important to develop innovative electronic devices with photo-dielectric functionalities. The light irradiation always causes increase in dielectric constant, as reported widely in various materials including (Bi0.5Na0.5)0.94Ba0.06TiO3 (BNBT). However, in this work, light illumination -induced obvious decrease in dielectric constant of the dense Mn3 +-doped BaTiO3 -based ceramics (BTM) was observed at room temperature, which shows opposite phenomenon compared to BNBT. By exploring effect of temperature on PDE, it is found that the thermal effect plays key role in affecting PDE behavior. The corresponding mechanism for the discrepancy of PDE between BTM and BNBT was discussed. The study helps to further explore complex factors affecting abnormal behavior of PDE.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117565"},"PeriodicalIF":5.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155158","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

Ordered distribution of bubble complexes induced by the planar defects 由平面缺陷引起的气泡配合物的有序分布

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-27 DOI: 10.1016/j.jeurceramsoc.2025.117564

Shen Li , Ziqi Cao , Zuojiang Wang , Mengli Xiao , Han Luo , Guang Ran

引用次数: 0

Synthesis and comprehensive performance of magnesium tantalate ceramics 钽酸镁陶瓷的合成及综合性能研究

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-26 DOI: 10.1016/j.jeurceramsoc.2025.117562

Yichen Xing , Ruifang Wang , Yufei Shi , Yusi Che , Jilin He

{"title":"Synthesis and comprehensive performance of magnesium tantalate ceramics","authors":"Yichen Xing , Ruifang Wang , Yufei Shi , Yusi Che , Jilin He","doi":"10.1016/j.jeurceramsoc.2025.117562","DOIUrl":"10.1016/j.jeurceramsoc.2025.117562","url":null,"abstract":"<div><div>MgTa2O6 and Mg4Ta2O9 were synthesized separately based on the effects of temperature, preforming pressure, and morphology of raw material tantalum pentoxide on the phase composition and microstructure of magnesium tantalate. The comprehensive performance and manufacturing cost of MgTa2O6 and Mg4Ta2O9 ceramics were evaluated. The experimental results indicated that the optimum synthesis conditions of MgTa2O6 and Mg4Ta2O9 included type-I tantalum pentoxide as raw material, 100 MPa of preforming pressure, and 1260 °C for 10 h of temperature profile. Compared with MgTa2O6, Mg4Ta2O9 ceramic exhibited superior mechanical and thermal performance with a thermal conductivity of 1.94–3.02 W·m−1·K−1 across 100–1000 °C, coupled with a thermal expansion coefficient of 11.1 × 10−6 K−1 at 1000 °C and Vickers hardness of 7.11 GPa. Mg4Ta2O9 ceramic has the advantage of comprehensive performance and manufacturing cost relative to conventional rare earth tantalate and yttria stabilized zirconia (YSZ), which is a promising alternative for next-generation thermal barrier coatings (TBCs) applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117562"},"PeriodicalIF":5.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168262","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

Progressive entropy engineering in AlTiHfNbTaZrN: Achieving superior thermomechanical properties through lattice distortion and thermodynamic kinetic factors AlTiHfNbTaZrN的渐进熵工程：通过晶格畸变和热力学动力学因素获得优异的热力学性能

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-26 DOI: 10.1016/j.jeurceramsoc.2025.117558

Hua D. Zhang , Jie Zhang , Li Chen , Yi Kong

{"title":"Progressive entropy engineering in AlTiHfNbTaZrN: Achieving superior thermomechanical properties through lattice distortion and thermodynamic kinetic factors","authors":"Hua D. Zhang , Jie Zhang , Li Chen , Yi Kong","doi":"10.1016/j.jeurceramsoc.2025.117558","DOIUrl":"10.1016/j.jeurceramsoc.2025.117558","url":null,"abstract":"<div><div>High-entropy nitride coatings garnered significant attention by overcoming the earlier thermal decomposition of TiAlN. Combining DFT calculations and experimental studies, we demonstrate all AlTiHfNbTaZrN coatings adopt a rock salt structure, driven by energetic preference and entropy stabilizing. Increasing Me content (Me=Hf+Nb+Ta+Zr) enhances hardness progressively from ∼28.4 GPa of Al0.45Ti0.55N to ∼36.9 GPa of Al0.38Ti0.14(Me)0.48N, attributed to lattice distortion. Toughness improvements correlate with Ta/Nb-induced metallic bonding. Thermal stability improves with peak hardness at ∼37.9 GPa for Al0.38Ti0.14(Me)0.48N after annealing to 1100 °C, surpassing ∼32.8 GPa of Al0.45Ti0.55N after 900 °C. Decreased activation energies indicate no hysteretic diffusion effect with increased entropy and distortion, while Me substitution strengthens ionic bondings with nitrogen to offset lattice expansion and brings increased average diffusion energies for non-Al metal atoms. Furthermore, greater strain energy between c-AlN and parent nitrides hinders the precipitation of Al atoms. These entropy-engineered coatings outperform TiAlN, making them ideal for cutting tools.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117558"},"PeriodicalIF":5.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155157","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

Microwave sintering of SnO2/ZnO ceramics: Effects of SiC susceptor 微波烧结SnO2/ZnO陶瓷：SiC感受器的影响

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-26 DOI: 10.1016/j.jeurceramsoc.2025.117560

Petra Šimonová , Clémence Petit , Christophe Meunier , François Valdivieso , Willi Pabst

引用次数: 0

Enhanced mechanical properties and oxidation resistance of (Ti,W,Mo,Ta)(C,N)-doped binderless Ti(C,N)-based ceramics （Ti，W,Mo,Ta）（C，N）掺杂无粘结剂Ti（C，N）基陶瓷的力学性能和抗氧化性能增强

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-26 DOI: 10.1016/j.jeurceramsoc.2025.117543

Xiyue Kang , Fengwei Xie , Ziren Yuan , Shuaipeng Chen , Ziyi Xu , Zeyu Teng , Xiaojing Li , Yuehui He

{"title":"Enhanced mechanical properties and oxidation resistance of (Ti,W,Mo,Ta)(C,N)-doped binderless Ti(C,N)-based ceramics","authors":"Xiyue Kang , Fengwei Xie , Ziren Yuan , Shuaipeng Chen , Ziyi Xu , Zeyu Teng , Xiaojing Li , Yuehui He","doi":"10.1016/j.jeurceramsoc.2025.117543","DOIUrl":"10.1016/j.jeurceramsoc.2025.117543","url":null,"abstract":"<div><div>Binderless Ti(C,N)-based ceramics were fabricated via spark plasma sintering using Ti(C,N) and (Ti,W,Mo,Ta)(C,N) powders as starting materials. Thermal analysis results indicated that, compared with Ti(C,N) powders, the solid solution powders possessed higher activation energy for oxidation, reducing oxidation susceptibility during preparation and promoting densification during sintering. As the content of (Ti,W,Mo,Ta)(C,N) increased, the relative density and transverse rapture strength were continuously enhanced. The sample containing 80 wt % solid solution exhibited the highest hardness and fracture toughness. Additionally, the utilization of (Ti,W,Mo,Ta)(C,N) significantly enhanced oxidation resistance, which was attributed to its promotion of the anatase-to-rutile phase transformation of the oxidation products, owing to the incorporation of W, Mo, and Ta into the Ti(C,N). During the initial stage of oxidation, the oxidation products of (Ti,W,Mo,Ta)(C,N) rapidly transformed to rutile-type oxides with high stability. This mechanism inhibited volume changes and crack formation, resulting in dense and flat oxidized surfaces.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 15","pages":"Article 117543"},"PeriodicalIF":5.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169840","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

Ferroelastic domain switching and toughening mechanism for T’-YSZ@Al2O3 core-shell structured ceramic materials T′-YSZ@Al2O3核壳结构陶瓷材料的铁弹性畴切换和增韧机理

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-26 DOI: 10.1016/j.jeurceramsoc.2025.117561

Rundong Gu , Chun Li , Pengfei Wang , Wenting He , Chaolong Ren , Yue Ma

{"title":"Ferroelastic domain switching and toughening mechanism for T’-YSZ@Al2O3 core-shell structured ceramic materials","authors":"Rundong Gu , Chun Li , Pengfei Wang , Wenting He , Chaolong Ren , Yue Ma","doi":"10.1016/j.jeurceramsoc.2025.117561","DOIUrl":"10.1016/j.jeurceramsoc.2025.117561","url":null,"abstract":"<div><div>The metastable tetragonal (T’) phase yttria-stabilized zirconia (T’-YSZ) exhibits exceptional fracture toughness, offering potential for improving the insufficient toughness of high-temperature HfO₂-based thermal barrier coatings. In our prior work, a T’-YSZ@Al2O3 core-shell structure was developed to suppress ion diffusion between the T’-YSZ reinforcing phase and cubic yttria-stabilized hafnia (C-YSH) matrix, thereby stabilizing the phase structure and enhancing fracture toughness through ferroelastic toughening. Building on this foundation, we systematically investigated the influence of Al2O3 shell thickness on ferroelastic domain switching by fabricating T’-YSZ@Al2O3 ceramics with varying shell-to-core volume ratios (10 %, 20 %, 30 % Al2O3, denoted as CS10 %, CS20 %, CS30 %) via spark plasma sintering (SPS). Multiscale characterization (SEM, XRD, TEM, Raman) combined with FIB-assisted localized analysis and mechanical testing revealed that within a shell-core volume ratio range of 0–30 %, both hardness and elastic modulus increased monotonically with shell thickness. Notably, the fracture toughness peaked at 6.59 MPa·m1/2 for CS20 % (shell-to-core ratio 0.2), representing an 18.5 % improvement over pure T’-YSZ. Beyond this threshold, excessive Al2O3 compromised toughness by reducing the T’-YSZ reinforcement content. Furthermore, the Al2O3 shell induced tensile stress within the T’-YSZ core, facilitating stress-driven ferroelastic domain switching. This interfacial stress engineering effectively enhanced domain switching and improving ferroelastic toughening efficiency.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117561"},"PeriodicalIF":5.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155156","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

A mesoscale multiphysics model of field-assisted sintering 场助烧结的中尺度多物理场模型

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-24 DOI: 10.1016/j.jeurceramsoc.2025.117557

Sawan Kumar, Arka Lahiri

引用次数: 0

Elaboration, post-annealing and energy harvesting performance of NBT-6BT thick films produced by aerosol deposition 气溶胶沉积NBT-6BT厚膜的精化、后退火及能量收集性能

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-24 DOI: 10.1016/j.jeurceramsoc.2025.117559

Anass Chrir , Oscar Rojas , Maxime Bavencoffe , Fernando Rubio-Marcos , Jesús López-Sánchez , Laurence Boyer , Olivier Durand-Panteix , Pascal Marchet

{"title":"Elaboration, post-annealing and energy harvesting performance of NBT-6BT thick films produced by aerosol deposition","authors":"Anass Chrir , Oscar Rojas , Maxime Bavencoffe , Fernando Rubio-Marcos , Jesús López-Sánchez , Laurence Boyer , Olivier Durand-Panteix , Pascal Marchet","doi":"10.1016/j.jeurceramsoc.2025.117559","DOIUrl":"10.1016/j.jeurceramsoc.2025.117559","url":null,"abstract":"<div><div>This study investigates the fabrication and the properties of 0.94 (Na0.5Bi0.5)TiO3-0.06 BaTiO3 (NBT-6BT) thick films elaborated by the Aerosol Deposition (AD) method. The as-deposited films exhibit reduced grain size, partial amorphization, and lack of ferro/piezoelectricity. Post-annealing led to a progressive enhancement of crystallinity and grain growth, restoring ferro/piezoelectric properties. Selected Area Diffraction (SAD) patterns of annealed samples confirm the coexistence of tetragonal and rhombohedral phases, characteristic of the morphotropic phase boundary (MPB). The 1000 °C annealed films exhibit the highest properties, with remnant polarization of ∼20 µC·cm−2, coercive field of 5 kV·mm−1, and maximum strain response of 0.3 % for a 10 KV·mm−1 electric field. In addition, the annealing process reduces the leakage currents, indicating improved film quality. Energy harvesting tests using cantilever-based devices confirm effective mechanical-to-electrical energy conversion, with a maximum harvested power of 3.53 nW. These results highlight the potential of AD-deposited NBT-6BT films for lead-free piezoelectric applications, including sensors, actuators, and energy harvesters.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 14","pages":"Article 117559"},"PeriodicalIF":5.8,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135033","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

Oxidation of textured Ti2AlN under controlled oxygen partial pressure 可控氧分压下织构Ti2AlN的氧化

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-05-23 DOI: 10.1016/j.jeurceramsoc.2025.117556

Ang Xu , Ruoqi Wang , Zhangcan Yang , Yifei Hu , Jilong Liu , Junjie Hu , Songyan Lu , Likun Miao , Heping Li , Jinping Suo

引用次数: 0