Article
Materials Science, Ceramics
Claire Mevel, Julie Carreaud, Celine Caillaud, Francesco Bour, Gaelle Delaizir, Victor Castaing, Bruno Viana, Pierre Carles, Francois Brisset, Cecile Genevois, Mathieu Allix, Sebastien Chenu
Summary: This study reports on the elaboration of translucent ZnGa2O4 ceramics through an innovative process. The researchers used the lixiviation of glass-ceramics to obtain ZnGa2O4 nanocrystals, which were then sintered into bulk ceramics using Spark Plasma Sintering (SPS). Despite the slightly lower transmittance compared to the theoretical value, these results are promising and open up new possibilities for transparent ceramic processing.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hangfeng Zhang, Henry Giddens, Theo Graves Saunders, Matteo Palma, Isaac Abrahams, Haixue Yan, Yang Hao
Summary: The relationship between low and high frequency tunabilities in tin substituted barium titanate ceramics was investigated. It was found that there are differences in tunabilities at different frequencies due to the different activities of larger ferroelectric domains and polar nanoclusters.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Zhuopeng Li, Jinyan Liu, Xiaochenyang Jiang, Jianfeng Cui
Summary: The red Hare's Fur glazed bowls from the Jin and Yuan periods were analyzed using various methods. The findings revealed the presence of e-Fe2O3 on the rim of the bowls, which required a specific temperature for formation. Additionally, the study observed that the presence of mullite promoted the formation of e-Fe2O3.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yuan Li, Shichang Guo, Zhenzhu Cao, Jinrong Liu, Liying Wang, Guorong Li
Summary: Li7La3Zr2O12 is a promising material for solid-state lithium battery electrolyte, and its structure can be modified through Ta doping to enhance its ionic conductivity and lithium ion migration rate. This material exhibits high critical current density and discharge capacity in solid-state batteries, making it a competitive solid electrolyte.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jiaming Zhan, Yunfa Guo, Hao Wang
Summary: This study systematically investigates the mechanical behaviors of calcium fluoride in humid environments. The effects of water on the deformation and plastic enhancement of CaF2 under indentation are explored through microindentation experiments, atomic simulations, and Raman spectroscopy measurement.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Hamed Salimkhani, Lovro Fulanovic, Till Froemling
Summary: The demand for robust multilayer ceramic capacitors with high-temperature and high-power capabilities is increasing rapidly. However, cost-effective production is a challenge. This study investigates the use of Na0.5Bi0.5TiO3-based materials as promising lead-free options. By adding sintering aids, the sintering temperature of Na0.5Bi0.5TiO3-BaTiO3-CaZrO3-BiAlO3 solid solutions was successfully reduced to 975 degrees C, suitable for co-sintering with Cu electrodes without adverse effects on capacitor properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Mingxing Li, Ran Mo, Zeshui Xu, Jie Zhou, Conglin Zhang, Xuefeng Cui, Fang Ye, Laifei Cheng, Ralf Riedel
Summary: Polymer infiltration and pyrolysis is an effective method for preparing ceramic matrix composites. The transformation of polymer to ceramic during the process affects the residual stress and interface behavior in the composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Melike Donmez, Metehan Erdogan, Cihangir Duran
Summary: The limited densification of CeO2 ceramics was improved by using an anorthite-based glass, resulting in high dielectric constant and quality factor with minimum dielectric loss. The CeO2-(anorthite-based) glass ceramic showed promising results in terms of low temperature densification and microwave properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Milena Ribeiro Gomes, Tim Leber, Tobias Tillmann, Dorothea Kenn, Daniela Gavagnin, Thorsten Tonnesen, Jesus Gonzalez-Julian
Summary: The iron and steelmaking industry accounts for 7-9% of global anthropogenic CO2 emissions. Efforts are being made to reduce these emissions, and hydrogen is emerging as a key solution. Hydrogen is projected to replace reducing agents in the direct reduction processes and can be used as a more sustainable fuel in industrial furnaces. However, the effects of hydrogen exposure on refractory lining are not fully understood.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Changhui Song, Yongqi Chen, Zibin Liu, Yinong Li, Yongqiang Yang, Jiakuo Yu
Summary: This paper presents a strategy for removing excess cured areas caused by light scattering in order to improve the forming accuracy and speed of ceramic parts.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
A. Agnaou, W. Mhaira, R. Essalim, F. Mauvy, M. Zaghrioui, T. Chartier, M. Alga, M. Zamama, A. Ammar
Summary: Bi4V2-xSxO11+delta (BiSVOx) compounds prepared by the hydrothermal method were characterized by their crystallinity and morphology. The compounds exhibit a tetragonal γ-Bi4V2O11 structure and spherical grain morphology. They show good stability at high temperatures and their conductivity increases with the substitution rate.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Lingyue Ma, Roberto Dugnani
Summary: This study proposes a new method to analyze fracture scenarios beyond the scope of ASTM C1678 by obtaining optical images of fracture surfaces and using visual analysis to highlight characteristic fractographic features. The selected features are then compared to a baseline set of virtual fracture patterns obtained by numerical phase-field simulations. Validation results show strength estimates within 6% of experimental results. This technique has the potential to significantly extend the application range and accuracy of fractographic methods for brittle components of arbitrary shapes and loadings.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Shuqi Guo, Gaku Okuma, Kimiyoshi Naito, Hideki Kakisawa
Summary: In this study, TaB2-SiC composites with and without rare-earth oxides were fabricated and the effects of rare-earth oxides on their mechanical properties were investigated. The results showed that the addition of rare-earth oxides improved the sinterability, microstructure, and fracture toughness of the composites, but decreased the shear and Young's moduli as well as the hardness. Additionally, the effects of rare-earth oxides on the strength and toughening of the composites were temperature-dependent.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Dan Zhao, Yi Feng, Zhipeng Pi, Fan Zhang
Summary: Phase equilibria in the ZrO2-GdO1.5-TaO2.5 (ZGTO) system were experimentally investigated, and the differences between ZGTO and the existing ZrO2-YO1.5-TaO2.5 (ZYTO) were discussed. The study is useful for thermodynamic assessment of ZGTO and can guide the design of novel thermal barrier coatings materials.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yan Kang, Lin Chen, Chang-Jiu Li, Guan-Jun Yang
Summary: A novel abradable seal coating with low hardness and high bonding strength was successfully designed and prepared. This coating has significantly higher abradability and erosion resistance compared to metal-based coatings, and can retain excellent abradability and have a long lifetime during service.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Zi-bo Niu, Daxin Li, Dechang Jia, Zhihua Yang, Kunpeng Lin, Paolo Colombo, Ralf Riedel, Yu Zhou
Summary: In this study, SiBCN ceramics with a special structure were prepared to improve the oxidation resistance. The effect of the structure on oxidation behavior and kinetics was investigated, revealing that the special structure can effectively inhibit heterogeneous oxidation and enhance the oxide layer composition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yongxing Wei, Huawei Zhang, Siyuan Dong, Changqing Jin, Chenxing Bai, Junle Dai, Zengzhe Xi, Zhonghua Dai, Zengyun Jian, Li Jin
Summary: In this study, solid solutions of xBi(Ni1/2Hf1/2)O-3-(1 - x)PbTiO3 (xBNH-PT) were synthesized to investigate their phase boundary behaviors and physical properties. The presence of a tetragonal-pseudocubic phase boundary and a spontaneous ferroelectric-relaxor transition at specific compositions were confirmed. The introduction of a tetragonal-pseudocubic phase boundary improved the piezoelectric properties and suppressed the spontaneous ferroelectric-relaxor transition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yutaka Ohya, Wingki Mey Hendra, Chika Takai-Yamashita, Takayuki Ban
Summary: Diffusion couples of rutile and corundum single crystals were prepared and examined to study the solid solution and precipitation of corundum in rutile during cooling. Different precipitation forms of corundum were observed under different cooling conditions.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Qingzhong Song, Xiangdong Zha, Ming Gao, Yingche Ma
Summary: This study analyzes the influence of calcia refractory purity on the properties of calcia crucibles. Higher purity calcia results in well-developed grains and improved hydration resistance, leading to better high-temperature strength and thermal shock resistance. In contrast, lower purity calcia crucibles exhibit inferior properties. Therefore, high-purity calcia is considered a potential refractory for manufacturing oxide crucibles.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
S. Rahmati, R. G. A. Veiga, J. Mostaghimi, T. Coyle, A. Dolatabadi
Summary: This study provides an atomic-scale description of the high-velocity impact of alpha-Al2O3 particles onto an alpha-Al2O3 substrate during Aerosol Deposition (AD). The results suggest that the crystal orientation plays a crucial role in both plasticity and damage of the nanoparticles. Impact velocity has a direct correlation with plasticity and fragmentation, but adhesion efficiency has only a marginal increase. The crucial element lies in the substrate's surface alterations caused by the fragments left on the substrate after impact.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2024)
