首页 > 最新文献

Journal of The European Ceramic Society最新文献

英文 中文
Optimization of interfacial zone microstructure of SiCf/Si3N4 composites containing in-situ formed BN coating 原位成形BN涂层SiCf/Si3N4复合材料界面区微观结构优化
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-06 DOI: 10.1016/j.jeurceramsoc.2025.118119
Haohui Hao, Xiaomeng Fan, Xinlei Wang, Fang Ye, Jimei Xue
SiCf/Si3N4 composite is a promising structural wave-absorbing integrated composites, while the interphase damage caused by thermal expansion mismatch degrades its mechanical properties. By employing iBN-coated SiC fibers, a higher interfacial bonding strength between the fibers and the interphase can be achieved, thereby reducing the interphase damage in the composite. In this work, BN interphase with different thickness was deposited on the surface of iBN-coated SiC fibers. After the formation of multilayer BN interphase, the interfacial damage ratio decreased from 19 % to 3 %, and thus the tensile strength of the composites increased from 161 ± 10–196 ± 31 MPa. At the same time, with the change of intra-bundle fiber contact state, the minimum reflection coefficient of the composites decreased from −4.46 to −12.32 dB, resulting from the increase of the conduction loss.
SiCf/Si3N4复合材料是一种很有前途的结构吸波集成复合材料,而热膨胀失配引起的相间损伤会降低其力学性能。通过采用ibn涂层SiC纤维,可以实现更高的纤维与界面相之间的界面结合强度,从而减少复合材料中界面相的损伤。在ibn涂层SiC光纤表面沉积了不同厚度的BN界面相。多层BN界面相形成后,界面损伤率由19 %降低到3 %,复合材料的抗拉强度由161 ± 10 ~ 196 ± 31 MPa提高。同时,随着纤维束内接触状态的改变,复合材料的最小反射系数从−4.46降低到−12.32 dB,这是由于传导损耗增加所致。
{"title":"Optimization of interfacial zone microstructure of SiCf/Si3N4 composites containing in-situ formed BN coating","authors":"Haohui Hao,&nbsp;Xiaomeng Fan,&nbsp;Xinlei Wang,&nbsp;Fang Ye,&nbsp;Jimei Xue","doi":"10.1016/j.jeurceramsoc.2025.118119","DOIUrl":"10.1016/j.jeurceramsoc.2025.118119","url":null,"abstract":"<div><div>SiC<sub>f</sub>/Si<sub>3</sub>N<sub>4</sub> composite is a promising structural wave-absorbing integrated composites, while the interphase damage caused by thermal expansion mismatch degrades its mechanical properties. By employing iBN-coated SiC fibers, a higher interfacial bonding strength between the fibers and the interphase can be achieved, thereby reducing the interphase damage in the composite. In this work, BN interphase with different thickness was deposited on the surface of iBN-coated SiC fibers. After the formation of multilayer BN interphase, the interfacial damage ratio decreased from 19 % to 3 %, and thus the tensile strength of the composites increased from 161 ± 10–196 ± 31 MPa. At the same time, with the change of intra-bundle fiber contact state, the minimum reflection coefficient of the composites decreased from −4.46 to −12.32 dB, resulting from the increase of the conduction loss.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118119"},"PeriodicalIF":6.2,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940034","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
Significantly enhanced dielectric and nonlinear electrical properties in CCTO ceramics prepared via high–energy ball milling with fine–grained IBLC microstructure 采用高能球磨法制备具有细晶IBLC微结构的CCTO陶瓷,显著提高了陶瓷的介电性能和非线性电学性能
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-05 DOI: 10.1016/j.jeurceramsoc.2026.118126
Kwanruthai Sankham , Jurimart Wongsricha , Sirion Srilarueang , Jutapol Jumpatam , Nutthakritta Phromviyo , Pornjuk Srepusharawoot , Prasit Thongbai
CaCu3Ti4O12 ceramics were synthesized using high–energy ball milling (HEBM) and conventional ball milling (CBM) methods. The HEBM powder produced fine, high–quality powder with improved reactivity, facilitating the formation of dense and uniform ceramic microstructures with fine grains ranging from ∼1.1–1.7 μm. Optimally sintered HEBM ceramics exhibited high ε′ of ∼3000–4000 and exceptionally low tanδ∼0.026–0.009 at 1 kHz. The ε′ of HEBM ceramics remained stable across a broad frequency range (100 Hz to 1 MHz) and demonstrated excellent temperature stability from −55 to 150 °C, fulfilling the X8R capacitor standard, while CBM ceramics exhibited strong temperature–dependent ε′. Additionally, HEBM ceramics displayed significantly improved nonlinear current–voltage behavior, with a high nonlinear coefficient of 24.1 and a breakdown strength over ten times higher than that of CBM ceramics. Impedance and X–ray photoelectron analyses confirmed enhanced dielectric and nonlinear properties resulted mainly from improved grain boundaries.
采用高能球磨法(HEBM)和常规球磨法(CBM)合成了cuu3ti4o12陶瓷。HEBM粉末制备出了精细、高质量的粉末,提高了反应性,有利于形成致密、均匀的陶瓷微结构,细晶粒范围为~ 1.1 ~ 1.7 μm。最佳烧结的HEBM陶瓷在1 kHz时表现出高ε′~ 3000-4000和极低的tanδ ~ 0.026-0.009。HEBM陶瓷的ε′在较宽的频率范围内(100 Hz至1 MHz)保持稳定,并且在- 55至150°C范围内表现出优异的温度稳定性,满足X8R电容器标准,而CBM陶瓷则表现出强烈的温度依赖性ε′。此外,HEBM陶瓷的非线性电流-电压行为显著改善,其非线性系数高达24.1,击穿强度比CBM陶瓷高10倍以上。阻抗和x射线光电子分析证实了电介质和非线性性能的增强主要是由于晶界的改善。
{"title":"Significantly enhanced dielectric and nonlinear electrical properties in CCTO ceramics prepared via high–energy ball milling with fine–grained IBLC microstructure","authors":"Kwanruthai Sankham ,&nbsp;Jurimart Wongsricha ,&nbsp;Sirion Srilarueang ,&nbsp;Jutapol Jumpatam ,&nbsp;Nutthakritta Phromviyo ,&nbsp;Pornjuk Srepusharawoot ,&nbsp;Prasit Thongbai","doi":"10.1016/j.jeurceramsoc.2026.118126","DOIUrl":"10.1016/j.jeurceramsoc.2026.118126","url":null,"abstract":"<div><div>CaCu<sub>3</sub>Ti<sub>4</sub>O<sub>12</sub> ceramics were synthesized using high–energy ball milling (HEBM) and conventional ball milling (CBM) methods. The HEBM powder produced fine, high–quality powder with improved reactivity, facilitating the formation of dense and uniform ceramic microstructures with fine grains ranging from ∼1.1–1.7 μm. Optimally sintered HEBM ceramics exhibited high ε′ of ∼3000–4000 and exceptionally low tanδ∼0.026–0.009 at 1 kHz. The ε′ of HEBM ceramics remained stable across a broad frequency range (100 Hz to 1 MHz) and demonstrated excellent temperature stability from −55 to 150 °C, fulfilling the X8R capacitor standard, while CBM ceramics exhibited strong temperature–dependent ε′. Additionally, HEBM ceramics displayed significantly improved nonlinear current–voltage behavior, with a high nonlinear coefficient of 24.1 and a breakdown strength over ten times higher than that of CBM ceramics. Impedance and X–ray photoelectron analyses confirmed enhanced dielectric and nonlinear properties resulted mainly from improved grain boundaries.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118126"},"PeriodicalIF":6.2,"publicationDate":"2026-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940030","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 α-Si3N4/Si3N4w/SiCN ceramic substrate with embedded microchannel by DLP DLP法制备嵌入微通道α-Si3N4/Si3N4w/SiCN陶瓷衬底
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-03 DOI: 10.1016/j.jeurceramsoc.2025.118120
Zhongya Zhang , Yongzhao Hou , Juhai Weng , Cheng Zhong , Jing Xue , Jiawei Jiang , Guangwu Wen , Xuefei Ma , Lijuan Zhang
In light of the mounting imperative for high heat dissipation packages for power devices, the DLP 3D printing technique was utilized as a preparatory measure for integrated embedded microfluidic SiCN ceramic substrates. The fabrication of SiCN composite ceramics with minimal shrinkage (25.6 ± 0.2 %) and elevated fracture toughness (4.1 ± 0.1 MPa·m1/2) was accomplished by optimizing the Si3N4 whiskers filler content within the hybrid filler. The critical thermal shock temperature difference of α-Si3N4/Si3N4w/SiCN ceramics to reach 730 °C, which is 119 °C higher than α-Si3N4/SiCN ceramics without Si3N4 whiskers (621 °C). Ceramics substrates with embedded microfluidic channels (diameter less than 467 μm) were prepared by optimizing fillers, and the connectivity, airtightness, and heat dissipation properties were tested and simulated separately. The results demonstrated excellent impermeability and heat dissipation properties. The study provides a viable technical solution to the issue of heat dissipation of electronic components under high-temperature working conditions.
针对功率器件高散热封装的安装需求,采用DLP 3D打印技术作为集成嵌入式微流控SiCN陶瓷基板的准备措施。通过优化杂化填料中Si3N4晶须的掺量,制备了具有最小收缩率(25.6 ± 0.2 %)和较高断裂韧性(4.1 ± 0.1 MPa·m1/2)的SiCN复合陶瓷。α-Si3N4/Si3N4w/SiCN陶瓷的临界热冲击温差达到730℃,比不含Si3N4晶须的α-Si3N4/SiCN陶瓷(621℃)高119℃。通过优化填料制备了直径小于467 μm嵌入微流控通道的陶瓷基板,并分别对其连通性、气密性和散热性能进行了测试和模拟。结果表明,该材料具有良好的抗渗和散热性能。该研究为电子元器件在高温工况下的散热问题提供了可行的技术解决方案。
{"title":"Fabrication of α-Si3N4/Si3N4w/SiCN ceramic substrate with embedded microchannel by DLP","authors":"Zhongya Zhang ,&nbsp;Yongzhao Hou ,&nbsp;Juhai Weng ,&nbsp;Cheng Zhong ,&nbsp;Jing Xue ,&nbsp;Jiawei Jiang ,&nbsp;Guangwu Wen ,&nbsp;Xuefei Ma ,&nbsp;Lijuan Zhang","doi":"10.1016/j.jeurceramsoc.2025.118120","DOIUrl":"10.1016/j.jeurceramsoc.2025.118120","url":null,"abstract":"<div><div>In light of the mounting imperative for high heat dissipation packages for power devices, the DLP 3D printing technique was utilized as a preparatory measure for integrated embedded microfluidic SiCN ceramic substrates. The fabrication of SiCN composite ceramics with minimal shrinkage (25.6 ± 0.2 %) and elevated fracture toughness (4.1 ± 0.1 MPa·m<sup>1/2</sup>) was accomplished by optimizing the Si<sub>3</sub>N<sub>4</sub> whiskers filler content within the hybrid filler. The critical thermal shock temperature difference of α-Si<sub>3</sub>N<sub>4</sub>/Si<sub>3</sub>N<sub>4w</sub>/SiCN ceramics to reach 730 °C, which is 119 °C higher than α-Si<sub>3</sub>N<sub>4</sub>/SiCN ceramics without Si<sub>3</sub>N<sub>4</sub> whiskers (621 °C). Ceramics substrates with embedded microfluidic channels (diameter less than 467 μm) were prepared by optimizing fillers, and the connectivity, airtightness, and heat dissipation properties were tested and simulated separately. The results demonstrated excellent impermeability and heat dissipation properties. The study provides a viable technical solution to the issue of heat dissipation of electronic components under high-temperature working conditions.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118120"},"PeriodicalIF":6.2,"publicationDate":"2026-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940029","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
Densification mechanism and thermal physical properties of strontium feldspar - silicon carbide ceramics for integrated absorption-storage materials 锶长石-碳化硅陶瓷的致密化机理及热物理性能
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-02 DOI: 10.1016/j.jeurceramsoc.2026.118125
Saixi Qiu , Jianfeng Wu , Xiaohong Xu , Yaqiang Shen , Deng Zhang , Mingzhuo Ding
This study reports the first fabrication of strontium feldspar-silicon carbide (SAS-SiC) composites, investigating the densification mechanism and potential as integrated absorption-storage materials for solar thermal power generation. Results indicate the composite ceramic with 40 wt% SAS (40SAS/SiC) achieves densification (bulk density: 2.96 g/cm3) with high thermal conductivity (25.91 W·m−1·K−1). The high density is attained via liquid-phase sintering, owing to the good compatibility between SAS and SiC and the reduction of liquid phase viscosity by Na2CO3. Furthermore, the material demonstrates excellent heat storage capacity (1104 kJ·kg−1, 1000℃) and solar absorptance (88.1 %). After 100 h of oxidation at 1100 °C, it exhibits mass gain (5.71 mg·cm−2). The sample shows merely 5 % reduction in bending strength after 50 thermal shock cycles. This resilience benefits from its high thermal conductivity and the transformation of SAS from the hexagonal phase to the monoclinic phase during thermal shock, the latter possessing a lower thermal expansion coefficient.
本研究首次制备了锶长石-碳化硅(SAS-SiC)复合材料,研究了其致密化机理及其作为太阳能热发电综合吸收-储存材料的潜力。结果表明,含40 wt% SAS (40SAS/SiC)的复合陶瓷具有较高的导热系数(25.91 W·m−1·K−1)和致密化(体积密度:2.96 g/cm3)。由于SAS与SiC具有良好的相容性,并且Na2CO3降低了液相粘度,因此通过液相烧结获得了较高的密度。此外,该材料具有良好的储热能力(1104 kJ·kg−1,1000℃)和太阳吸收率(88.1 %)。在1100℃氧化100 h后,其质量增加(5.71 mg·cm−2)。经过50次热冲击循环后,样品的抗弯强度仅降低了5 %。这种弹性得益于其高导热性和SAS在热冲击期间从六方相转变为单斜相,后者具有较低的热膨胀系数。
{"title":"Densification mechanism and thermal physical properties of strontium feldspar - silicon carbide ceramics for integrated absorption-storage materials","authors":"Saixi Qiu ,&nbsp;Jianfeng Wu ,&nbsp;Xiaohong Xu ,&nbsp;Yaqiang Shen ,&nbsp;Deng Zhang ,&nbsp;Mingzhuo Ding","doi":"10.1016/j.jeurceramsoc.2026.118125","DOIUrl":"10.1016/j.jeurceramsoc.2026.118125","url":null,"abstract":"<div><div>This study reports the first fabrication of strontium feldspar-silicon carbide (SAS-SiC) composites, investigating the densification mechanism and potential as integrated absorption-storage materials for solar thermal power generation. Results indicate the composite ceramic with 40 wt% SAS (40SAS/SiC) achieves densification (bulk density: 2.96 g/cm<sup>3</sup>) with high thermal conductivity (25.91 W·m<sup>−1</sup>·K<sup>−1</sup>). The high density is attained via liquid-phase sintering, owing to the good compatibility between SAS and SiC and the reduction of liquid phase viscosity by Na<sub>2</sub>CO<sub>3</sub>. Furthermore, the material demonstrates excellent heat storage capacity (1104 kJ·kg<sup>−1</sup>, 1000℃) and solar absorptance (88.1 %). After 100 h of oxidation at 1100 °C, it exhibits mass gain (5.71 mg·cm<sup>−2</sup>). The sample shows merely 5 % reduction in bending strength after 50 thermal shock cycles. This resilience benefits from its high thermal conductivity and the transformation of SAS from the hexagonal phase to the monoclinic phase during thermal shock, the latter possessing a lower thermal expansion coefficient.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118125"},"PeriodicalIF":6.2,"publicationDate":"2026-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940035","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
On the sensitivity of ternary lithium-ion cathode materials to substrate-induced lithium loss during calcination 三元锂离子正极材料在煅烧过程中对衬底诱导锂损失的敏感性研究
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-02 DOI: 10.1016/j.jeurceramsoc.2025.118124
Siebe Coessens , Behnam Bahramian , Inge Bellemans , Tijl Crivits , Christophe Detavernier , Kim Verbeken
Lithium loss resulting from undesirable side reactions of reactive lithium-compounds with substrate materials during the synthesis of Ni-rich ternary lithium transition-metal oxides are investigated. NMC811 samples were synthesized in different reaction crucibles, starting from oxide precursors (Ni0.8Mn0.1Co0.1O) and LiOH. Post-mortem analysis of the crucibles by means of SEM-EDS and XRD, combined with structural and electrochemical characterization of the obtained cathode materials reveal a clear correlation between the final lithium to metal ratio in the cathode material and the chosen substrate material and exemplify the effect on the materials’ performance. It was determined that the commonly used ceramic oxides SiO2 and Al2O3 compete with the transition metal oxide precursor for lithiation at high temperature, resulting in high lithium losses, increased Ni2+/Li+ mixing and suboptimal electrochemical performance. In contrast, it is demonstrated that the occurrence of parasitic side reactions is greatly reduced in MgO and Au, resulting in materials with improved performance.
研究了在合成富镍三元过渡金属锂氧化物过程中,由于活性锂化合物与衬底材料发生不良副反应而导致的锂损失。从氧化物前驱体Ni0.8Mn0.1Co0.1O和LiOH开始,在不同的反应坩埚中合成了NMC811样品。利用SEM-EDS和XRD对坩埚进行了事后分析,并结合所获得的正极材料的结构和电化学表征,揭示了正极材料中最终锂金属比与所选择的衬底材料之间的明显相关性,并举例说明了对材料性能的影响。结果表明,在高温下,常用的陶瓷氧化物SiO2和Al2O3与过渡金属氧化物前驱体竞争锂化,导致锂损失高,Ni2+/Li+混合增加,电化学性能不佳。相比之下,MgO和Au的寄生副反应的发生大大减少,从而提高了材料的性能。
{"title":"On the sensitivity of ternary lithium-ion cathode materials to substrate-induced lithium loss during calcination","authors":"Siebe Coessens ,&nbsp;Behnam Bahramian ,&nbsp;Inge Bellemans ,&nbsp;Tijl Crivits ,&nbsp;Christophe Detavernier ,&nbsp;Kim Verbeken","doi":"10.1016/j.jeurceramsoc.2025.118124","DOIUrl":"10.1016/j.jeurceramsoc.2025.118124","url":null,"abstract":"<div><div>Lithium loss resulting from undesirable side reactions of reactive lithium-compounds with substrate materials during the synthesis of Ni-rich ternary lithium transition-metal oxides are investigated. NMC811 samples were synthesized in different reaction crucibles, starting from oxide precursors (Ni<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O) and LiOH. Post-mortem analysis of the crucibles by means of SEM-EDS and XRD, combined with structural and electrochemical characterization of the obtained cathode materials reveal a clear correlation between the final lithium to metal ratio in the cathode material and the chosen substrate material and exemplify the effect on the materials’ performance. It was determined that the commonly used ceramic oxides SiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> compete with the transition metal oxide precursor for lithiation at high temperature, resulting in high lithium losses, increased Ni<sup>2+</sup>/Li<sup>+</sup> mixing and suboptimal electrochemical performance. In contrast, it is demonstrated that the occurrence of parasitic side reactions is greatly reduced in MgO and Au, resulting in materials with improved performance.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118124"},"PeriodicalIF":6.2,"publicationDate":"2026-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940025","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
Flash co-sintering of a solid oxide fuel cell electrolyte - electrode multilayers structure under an AC electric field 交流电场作用下固体氧化物燃料电池电解质-电极多层结构的闪蒸共烧结
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-02 DOI: 10.1016/j.jeurceramsoc.2025.118122
Shengye Zhai , Na Ni , Weiwei Xiao , Hongxia Liang , Xiaohui Fan
In this work, flash sintering under an AC electric field was employed to co-sinter a multilayer structure consisting of a 20 mol% gadolinium doped ceria (GDC20) electrolyte with a (La0.6Sr0.4)0.99CoO3-δ (LSC64) cathode for solid oxide cell applications. A series current configuration where the electrical field is perpendicular to the layer interface was adopted and found to beneficial in co-sintering GDC20 and LSC64 layers with large conductivity differences. Optimized FS conditions allow to achieve full densification of the electrolyte while maintaining high porosity in the electrode without interfacial cracks and elemental interdiffusion. Preferential densification and grain growth of GDC were found to occur near its interface with the LSC layer, which may be related to the accelerated oxygen electrochemical reduction reaction at the interfacial area where the porous LSC64 layer, as a mixed ion-electron conductor, provides abundant three-phase reaction sites.
在本研究中,采用交流电场下的闪烧技术,共烧结了由20 mol%钆掺杂的氧化铈(GDC20)电解质和(La0.6Sr0.4)0.99CoO3-δ (LSC64)阴极组成的多层结构,用于固体氧化物电池。采用电场垂直于层界面的串联电流配置有利于共烧结电导率差异较大的GDC20和LSC64层。优化的FS条件允许实现电解质的完全致密化,同时保持电极的高孔隙率,没有界面裂纹和元素间扩散。GDC在其与LSC层的界面附近发生了优先致密化和晶粒生长,这可能与LSC64层作为离子-电子混合导体,提供了丰富的三相反应位点,加速了界面区域的氧电化学还原反应有关。
{"title":"Flash co-sintering of a solid oxide fuel cell electrolyte - electrode multilayers structure under an AC electric field","authors":"Shengye Zhai ,&nbsp;Na Ni ,&nbsp;Weiwei Xiao ,&nbsp;Hongxia Liang ,&nbsp;Xiaohui Fan","doi":"10.1016/j.jeurceramsoc.2025.118122","DOIUrl":"10.1016/j.jeurceramsoc.2025.118122","url":null,"abstract":"<div><div>In this work, flash sintering under an AC electric field was employed to co-sinter a multilayer structure consisting of a 20 mol% gadolinium doped ceria (GDC20) electrolyte with a (La<sub>0.6</sub>Sr<sub>0.4</sub>)<sub>0.99</sub>CoO<sub>3-δ</sub> (LSC64) cathode for solid oxide cell applications. A series current configuration where the electrical field is perpendicular to the layer interface was adopted and found to beneficial in co-sintering GDC20 and LSC64 layers with large conductivity differences. Optimized FS conditions allow to achieve full densification of the electrolyte while maintaining high porosity in the electrode without interfacial cracks and elemental interdiffusion. Preferential densification and grain growth of GDC were found to occur near its interface with the LSC layer, which may be related to the accelerated oxygen electrochemical reduction reaction at the interfacial area where the porous LSC64 layer, as a mixed ion-electron conductor, provides abundant three-phase reaction sites.</div></div>","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 7","pages":"Article 118122"},"PeriodicalIF":6.2,"publicationDate":"2026-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940026","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
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-01
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118155"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146661539","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
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-01
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118248"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146661551","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
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-01
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118201"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146661556","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
IF 6.2 2区 材料科学 Q1 MATERIALS SCIENCE, CERAMICS Pub Date : 2026-01-01
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17408,"journal":{"name":"Journal of The European Ceramic Society","volume":"46 8","pages":"Article 118183"},"PeriodicalIF":6.2,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146661562","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
期刊
Journal of The European Ceramic Society
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1