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

Microstructure, mechanical properties and thermal expansion behavior of M55J Cf/SiC-SiBC composites with different interphase thicknesses

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-23 DOI: 10.1016/j.jeurceramsoc.2025.117389

Haohui Hao , Xiaolin Dang , Tao He , Donglin Zhao , Xinlei Wang , Chao Chen , Xiaomeng Fan

{"title":"Microstructure, mechanical properties and thermal expansion behavior of M55J Cf/SiC-SiBC composites with different interphase thicknesses","authors":"Haohui Hao , Xiaolin Dang , Tao He , Donglin Zhao , Xinlei Wang , Chao Chen , Xiaomeng Fan","doi":"10.1016/j.jeurceramsoc.2025.117389","DOIUrl":"10.1016/j.jeurceramsoc.2025.117389","url":null,"abstract":"<div><div>For space gravitational wave detectors, ultra-high-precision detection requires structural materials with excellent dimensional stability, and the development of near-zero expansion materials has emerged. In this work, M55J C<sub>f</sub>/SiC-SiBC with different PyC thicknesses were fabricated, and the mechanical and expansion properties were studied. The compatibility between near-zero expansion and high load-bearing capacity was realized by regulating the interphase thickness. The results show that, as PyC thickness increases, both the intra-bundle matrix content and the proportion of fiber corrosion area decrease. As interphase thickness increases from 180 to 420 nm, the tensile strength increases from 159 ± 12–254 ± 18 MPa and then decreases to 229 ± 3 MPa. The CTE of M55J C<sub>f</sub>/SiC-SiBC decreased from 0.09 × 10<sup>−6</sup> to −0.31 × 10<sup>−6</sup> K<sup>−1</sup>. Through interphase thickness optimization, the macroscopic expansion is transformed to micro-zone deformation and the relative deformation between fiber and matrix can be coordinated, therefore the near-zero expansion property can be realized.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117389"},"PeriodicalIF":5.8,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679593","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 effect of damage and temperature on electrical impedance of SiCf/SiC mini-composites and a preliminary decoupling method 损伤和温度对 SiCf/SiC 微型复合材料电阻抗的影响及初步去耦方法

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-22 DOI: 10.1016/j.jeurceramsoc.2025.117388

Beichen Xue , Guoqiang Yu , Jiaming Li , Zheng Ni , Wenbing Ma , Zhengqing Sui , Xiguang Gao , Yingdong Song

{"title":"The effect of damage and temperature on electrical impedance of SiCf/SiC mini-composites and a preliminary decoupling method","authors":"Beichen Xue , Guoqiang Yu , Jiaming Li , Zheng Ni , Wenbing Ma , Zhengqing Sui , Xiguang Gao , Yingdong Song","doi":"10.1016/j.jeurceramsoc.2025.117388","DOIUrl":"10.1016/j.jeurceramsoc.2025.117388","url":null,"abstract":"<div><div>This letter presents a preliminary method for decoupling and monitoring damage and temperature in SiC fiber-reinforced SiC matrix mini-composites using electrical impedance. The impact of damage on impedance characteristics during uniaxial tension is elucidated by decomposing the impedance data into real and imaginary components. An equivalent circuit model, which accounts for the influence of electrode effects, is developed to interpret the experimental findings. Impedance measurements were conducted on pristine and pre-damaged specimens under a temperature-controlled environment at frequencies ranging from 10 Hz to 5 MHz. The reactance is found to be strongly correlated with damage progression and remains unaffected by changes in resistivity due to thermoresistive effects. This finding facilitates the decoupling and concurrent monitoring of damage and temperature conditions in ceramic matrix composite structures using only electrical impedance.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117388"},"PeriodicalIF":5.8,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143696048","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 effects of configuration-entropy and aliovalent-doping on the electrical and stability properties of bixbyite oxides

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-21 DOI: 10.1016/j.jeurceramsoc.2025.117378

Keke Hou , Man Tian , Laijun Liu , Jungu Xu

{"title":"The effects of configuration-entropy and aliovalent-doping on the electrical and stability properties of bixbyite oxides","authors":"Keke Hou , Man Tian , Laijun Liu , Jungu Xu","doi":"10.1016/j.jeurceramsoc.2025.117378","DOIUrl":"10.1016/j.jeurceramsoc.2025.117378","url":null,"abstract":"<div><div>The bixbyites Ln<sub>2</sub>O<sub>3</sub> materials which have the defect fluorite structure show limited ionic conduction and poor chemical stabilities. To find solutions to overcome these drawbacks, herein the effect of configuration entropy and aliovalent-doping (Ca-, Mg-, Ba-, and Zr-doping) for Ln on the electrical properties and stabilities of Ln<sub>2</sub>O<sub>3</sub> were thoroughly investigated. The results disclosed that Ca- Mg- or Ba-doping could considerably improve the samples’ electrical conductivities as expected, with the Ca-doping leading to dominating ionic conduction, while both Mg- and Ba-doping resulted in dominating electronic conduction. For the Zr-doping, the electrical conductivities increased with doping level, with the samples 0 ≤ <em>x</em> ≤ 0.5 dominated by electronic conduction while the samples 0.6 ≤ <em>x</em> ≤ 0.8 showing dominating ionic conduction. For stability properties, enhancing the configuration entropy would increase the chemical stabilities of the Ln<sub>2</sub>O<sub>3</sub>-based materials. Therefore, Ca- and Zr-doping are beneficial to improving both the stabilities and ionic conductivities.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117378"},"PeriodicalIF":5.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678901","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 effect of aluminum oxide on the mechanical properties of hot-pressing black titanium dioxide ceramics

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-21 DOI: 10.1016/j.jeurceramsoc.2025.117385

Xinwei Geng , Yongfeng Xia , Ming Zhu , Jun Zhao , Dongxu Yao , Yu-Ping Zeng

{"title":"The effect of aluminum oxide on the mechanical properties of hot-pressing black titanium dioxide ceramics","authors":"Xinwei Geng , Yongfeng Xia , Ming Zhu , Jun Zhao , Dongxu Yao , Yu-Ping Zeng","doi":"10.1016/j.jeurceramsoc.2025.117385","DOIUrl":"10.1016/j.jeurceramsoc.2025.117385","url":null,"abstract":"<div><div>Titanium dioxide (TiO<sub>2</sub>) ceramics, known for their excellent functionality, have been limited in applications due to their relatively weak mechanical properties. In this work, black TiO<sub>2</sub> ceramics with superior mechanical properties are achieved through the incorporation of aluminum oxide (Al<sub>2</sub>O<sub>3</sub>) additives and hot-pressing method. The black TiO<sub>2</sub> ceramic exhibited a remarkable flexural strength of near 400 MPa, which is the highest value known to us to date for similar materials. The influence of Al<sub>2</sub>O<sub>3</sub> on the mechanical properties of black TiO<sub>2</sub> ceramics was discussed from the perspective of material microstructures. The Al-Ti-O nanolayer was observed at the grain boundaries, contributing to both the reinforcement of grain boundaries and the refinement of grains along with Al<sub>2</sub>O<sub>3</sub> particles. This study not only developed black TiO<sub>2</sub> ceramics with great mechanical properties but also expanded our understanding of the TiO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> material system.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117385"},"PeriodicalIF":5.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679594","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

Enhanced piezoelectric and photochromic properties of Sm3+/Sr2+ co-doped K0.52Na0.48NbO3 ceramics in combination with luminescence

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-20 DOI: 10.1016/j.jeurceramsoc.2025.117387

J.W. Seo, S.W. Wi, Y.S. Lee, Jin-Seok Chung

引用次数: 0

Advanced vat photopolymerization of polymer-derived 70S30C glass-carbon nano-composites: Topological control and biological validation

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-20 DOI: 10.1016/j.jeurceramsoc.2025.117384

Hamada Elsayed , Sara Micheli , Franco Matias Stabile , Altan Alpay Altun , Martin Schwentenwein , Elisa Cimetta , Enrico Bernardo

{"title":"Advanced vat photopolymerization of polymer-derived 70S30C glass-carbon nano-composites: Topological control and biological validation","authors":"Hamada Elsayed , Sara Micheli , Franco Matias Stabile , Altan Alpay Altun , Martin Schwentenwein , Elisa Cimetta , Enrico Bernardo","doi":"10.1016/j.jeurceramsoc.2025.117384","DOIUrl":"10.1016/j.jeurceramsoc.2025.117384","url":null,"abstract":"<div><div>This study explores the use of photocurable silicone/acrylate blends as feedstock for vat-photopolymerization to fabricate highly porous components with complex geometries, such as gyroid scaffolds. The inclusion of calcium nitrate tetrahydrate in nano-emulsion into the silicone-based liquid enables the transformation of polymer scaffolds into ceramic nanocomposites by heat treatment at 700 °C in a N<sub>2</sub> atmosphere. These scaffolds are designed for bioengineering applications, featuring a matrix resembling 70S30C bioglass with pyrolytic carbon as a secondary phase. The homogeneity of the feedstock, essential for developing a glass matrix, does not automatically ensure tight control over topology and mechanical properties. However, by utilizing high-precision stereolithography and liquid feedstock-based emulsion inks, we achieved a strict match to the reference model porosity (85 vol%) for both printed and fired scaffolds, resulting in an impressive strength-to-density ratio. In vitro tests with multiple human cell lines confirm the biocompatibility and bioactivity of our materials. Furthermore, the enhanced photothermal effect attributable to increased infrared absorption of the dispersed carbon phase enhanced by infrared absorption, shows promising potential for inducing apoptosis in cancer cells, providing an exciting avenue for cancer treatment applications.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117384"},"PeriodicalIF":5.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vat photopolymerization-based additive manufacturing of ZrB2-based ultra-high temperature ceramics using low-absorbance precursors

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-20 DOI: 10.1016/j.jeurceramsoc.2025.117386

Qianshun Cui , Zhifeng Huang , Xuye Wang , Ao Wang , Shuai Zhang , Kai Liu , Fei Chen

{"title":"Vat photopolymerization-based additive manufacturing of ZrB2-based ultra-high temperature ceramics using low-absorbance precursors","authors":"Qianshun Cui , Zhifeng Huang , Xuye Wang , Ao Wang , Shuai Zhang , Kai Liu , Fei Chen","doi":"10.1016/j.jeurceramsoc.2025.117386","DOIUrl":"10.1016/j.jeurceramsoc.2025.117386","url":null,"abstract":"<div><div>Ultra-high-temperature ceramics (UHTCs) are promising candidates for thermal structures in extreme environments requiring exceptional resistance to temperatures above 2000 °C. Processing these materials via vat photopolymerization-based additive manufacturing remains unattainable, one major obstacle is the high absorbance of conventional ceramic powders. This study introduces an innovative solution utilizing low-absorbance ZrB<sub>2</sub> precursors. The results indicate that carbon sources significantly influence the absorbance of precursors, with sorbitol-derived precursors exhibiting notably lower absorbance values (0.16) at 405 nm compared to pure ZrB<sub>2</sub> powders (0.83). The corresponding photosensitive slurries demonstrate favorable photocuring behavior, facilitating successful additive manufacturing processes. Post-processing through carbonization and boro/carbothermal reduction yields ZrB<sub>2</sub>-based ceramics with high mechanical strength and low thermal conductivity, similar to the properties of most porous UHTCs produced by conventional methods. Notably, the printed gyroid-shaped components display mechanical properties comparable to those of conventionally manufactured simple-shaped ones. This approach holds potential for extending the production capabilities to other types of UHTCs.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117386"},"PeriodicalIF":5.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679592","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

Direct ink writing of aqueous-based Gadolinium (III) oxide slurries

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-20 DOI: 10.1016/j.jeurceramsoc.2025.117381

Patrick L. Snarr , Corson L. Cramer , Ercan Cakmak , Beth L. Armstrong , James G. Hemrick , Derek A. Haas , Joseph J. Beaman , Christian M. Petrie , Andrew T. Nelson

{"title":"Direct ink writing of aqueous-based Gadolinium (III) oxide slurries","authors":"Patrick L. Snarr , Corson L. Cramer , Ercan Cakmak , Beth L. Armstrong , James G. Hemrick , Derek A. Haas , Joseph J. Beaman , Christian M. Petrie , Andrew T. Nelson","doi":"10.1016/j.jeurceramsoc.2025.117381","DOIUrl":"10.1016/j.jeurceramsoc.2025.117381","url":null,"abstract":"<div><div>Gadolinium (III) oxide (gadolinia, Gd<sub>2</sub>O<sub>3</sub>) has recently been identified as an intriguing material for applications in the medical, solid oxide fuel cell, and nuclear industries. This interest drives the need for developing and understanding manufacturing techniques that can produce dense Gd<sub>2</sub>O<sub>3</sub> structures. Direct ink writing (DIW), an extrusion-based additive manufacturing method, has also garnered interest because of its capability to produce dense ceramic parts with increased complexity in an economical manner. In this study, DIW was explored as a manufacturing technique for Gd<sub>2</sub>O<sub>3</sub>. Experiments were performed to develop Gd<sub>2</sub>O<sub>3</sub> bearing inks capable of being processed via DIW. Ink solids loading and sintering temperatures were varied to assess their impact on the final density and microstructure. Optimum sintering conditions are proposed and were experimentally verified at a dwell temperature of 1500°C. Gd<sub>2</sub>O<sub>3</sub> samples were successfully manufactured using DIW, achieving densities greater than 96 % of the theoretical density.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117381"},"PeriodicalIF":5.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143678895","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

Effect of particle size distribution on cold sintering of amorphous silica

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-19 DOI: 10.1016/j.jeurceramsoc.2025.117380

Keitaro Yamaguchi, Masato Nakanishi, Shinobu Hashimoto

引用次数: 0

Monolithic electrolyte-supported solid oxide fuel cells fabricated by gel-casting on 3D-printed moulds

IF 5.8 2区材料科学

Journal of The European Ceramic Society Pub Date : 2025-03-19 DOI: 10.1016/j.jeurceramsoc.2025.117379

Miguel Morales , Vicente Roda , Sandra García-González , Ricardo Torres , Attila Husar , Emilio Jiménez-Piqué

{"title":"Monolithic electrolyte-supported solid oxide fuel cells fabricated by gel-casting on 3D-printed moulds","authors":"Miguel Morales , Vicente Roda , Sandra García-González , Ricardo Torres , Attila Husar , Emilio Jiménez-Piqué","doi":"10.1016/j.jeurceramsoc.2025.117379","DOIUrl":"10.1016/j.jeurceramsoc.2025.117379","url":null,"abstract":"<div><div>A new approach for fabricating monolithic electrolyte-supported Solid Oxide Fuel Cells based on gel-casting technique on 3D-printed moulds is proposed to enhance their electrochemical and mechanical performances. Conventional planar and honeycomb configurations of 8 mol% yttria-stabilized-zirconia (YSZ) electrolytes were gel-casted. Proper aqueous ink formulations of YSZ and agarose gelling agent were prepared, and moulds made of polylactic acid filament were fabricated by 3D-printing. The mechanical behaviour of gel-casted ceramics was compared with cold-isostatic-pressed ones, using ball-on-3-balls bending strength and nanoindentation tests. Complementarily, the effect of electrolyte geometry on the mechanical stress distribution was investigated by finite element simulation. Finally, complete fuel cells were fabricated and electrochemically characterized, using Ni-YSZ anode and lanthanum-strontium-manganite-YSZ cathode. Electrochemical performance of the honeycomb cell (227 mW·cm<sup>−2</sup> at 900°C) was significantly higher than the planar one (189 mW·cm<sup>−2</sup> at 900°C). The electrochemical and mechanical properties of gel-casted electrolytes, close to state-of-the-art ones, validate this new approach.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"45 11","pages":"Article 117379"},"PeriodicalIF":5.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143679596","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