Article
Chemistry, Physical
Lorenleyn de la Hoz Alford, Camila Gomes Pecanha de Souza, Sidnei Paciornik, Jose Roberto M. d'Almeida, Brenno Santos Leite, Harold C. Avila, Fabien Leonard, Giovanni Bruno
Summary: Two biopolyol-based foams derived from banana leaves or stems were characterized for their compression mechanical behavior and 3D microstructure. They developed a methodology of image acquisition, processing, and analysis to discriminate the foam cells and measure their numbers, volumes, and shapes. The compression behaviors of the two foams were similar, but the average cell volume was larger for the foam derived from stems. The number of cells increased with compression while the average cell volume decreased. Cell shapes did not change with compression, suggesting the possibility of cell collapse. This study provides insights into the potential use of biopolyol-based foams as green alternatives to petrol-based foams.
Article
Radiology, Nuclear Medicine & Medical Imaging
Haruto Sugawara, Toshihiro Furuta, Akira Sumiyoshi, Megumi Iiyama, Masaru Kamitani, Aiko Suzuki, Arao Murakami, Osamu Abe, Ichio Aoki, Hiroyuki Akai
Summary: In this study, a CT lymphangiography method was established in mice via direct lymph node puncture. The results showed that the contrast ratios and visual assessment scores of lymph nodes and lymphatic vessels were significantly better in the direct puncture group compared to the CT or MR interstitial injection method.
EUROPEAN RADIOLOGY
(2023)
Article
Water Resources
Max P. Cooper, Rishabh P. Sharma, Silvana Magni, Tomasz P. Blach, Andrzej P. Radlinski, Katarzyna Drabik, Alessandro Tengattini, Piotr Szymczak
Summary: The dissolution of porous media leads to the formation of wormhole-like channels within rocks, which provide efficient flow paths. Understanding the formation of these wormholes is important for controlling contaminant migration or preventing CO2 leakage. In this study, we used time-resolved X-ray tomography to capture the dynamics of wormhole propagation and found a complex relationship between wormhole advancement and rock permeability. We also identified highly cemented regions that act as barriers to flow. These results demonstrate the potential of using time-lapse captured wormhole dynamics to probe the internal structure of rocks.
ADVANCES IN WATER RESOURCES
(2023)
Article
Materials Science, Ceramics
Bin Liang, Mingxing Zhang, Hao Li, Ming Zhao, Pengfei Xu, Leibo Deng
Summary: By adding borax, the sintering temperature of ceramic foams was reduced and the foaming process was accelerated, resulting in ceramic foams with excellent mechanical properties, suitable for lightweight panels in building applications.
CERAMICS INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
A. J. Cresswell-Boyes, G. R. Davis, M. Krishnamoorthy, D. Mills, A. H. Barber
Summary: Human teeth can be mechanically replicated using 3D printing to create biomimetic typodont teeth. The mechanical performance of the biomimetic teeth depends on the ratio of material mechanical properties rather than the absolute material properties.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Applied
Hao Zhou, Jiawei Luo, Zhaowen Wang, Mengting Ji, Mingrui Zhang
Summary: This study used X-ray technology to reveal the effect of walnut shell ash on the pore structure characteristics during Zhundong coal sintering process. It was found that adding walnut shell ash promoted the formation of pore structures and shifted the overall pore size distribution towards larger pores.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Xiaoxiao Li, Shujing Li, Yuanbing Li, Shiqi Li, Pan Chen, Tenglong Guo
Summary: In this study, BPO4 powder was prepared by solid-state reaction using ammonium phosphate monobasic and boric acid as the starting materials. BPO4 ceramic foams were successfully obtained for the first time using the direct foaming method and freeze-drying techniques. The effects of additive content and solid loading on the rheological behavior of the slurry, as well as the microstructures and properties of the BPO4 ceramic foams, were investigated. The results demonstrate the significant potential of these ceramic foams as thermal insulation materials.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Tai-Jan Huang, Sridhar Niverty, Arun Sundar, Nikhilesh Chawla
Summary: Meteorite samples that land on earth provide important information about asteroids and meteors in space. This study used 3D x-ray tomography, scanning electron microscopy, and energy dispersive spectroscopy to analyze the microstructure, elemental composition, and mechanical properties of the Aba Panu meteorite. The results contribute to a comprehensive understanding of the formation history and characteristics of the meteorite.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Applied
Jian Qiao, Renqiang Shi
Summary: In this study, porous mullite materials were fabricated using the direct foaming-gelcasting approach with industrial-grade mullite powder and different sintering additives. The results showed that the porous mullite materials had a hierarchical pore structure including interconnected and approximately spherical cells, as well as small pores within the skeleton structure. The addition of sintering aids resulted in high porosity, good compressive strength, and low dielectric constant.
JOURNAL OF POROUS MATERIALS
(2023)
Article
Engineering, Chemical
Zeyu Feng, Yuping Fan, Xianshu Dong, Xiaomin Ma, Ruxia Chen
Summary: The separation of particulate solids from liquids by filtration is crucial in industrial processes. The microstructure and permeability of filter cake are important factors influencing fluid flow efficiency and mass transfer. Through filtration tests and simulation analysis, it is discovered that the fluid flux in filter cake is strongly related to the width of main channels, and improving pore connectivity and size is more effective in enhancing cake permeability than increasing porosity and number of pores.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Jianping Ai, Meng Li, Yuxuan Ke, Yaping Shuai, Haoxuan Li, Wenkui Li, Lihong Cheng, Zehua Zhou, Zhiqin Chen, Liling Hu
Summary: This study investigates the relationship between the morphology and mechanical properties of YSZ ceramic foams fabricated using Isobam as a gelling agent and explores the influence of foaming yield on their performance.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Fluids & Plasmas
Ying Gao, Ali Q. Raeini, Martin J. Blunt, Branko Bijeljic
Summary: Fast synchrotron tomography was used to study the impact of capillary number on fluid configurations in porous media, revealing different flow regimes depending on the capillary number and demonstrating how dynamic connectivity results from interactions between oil ganglia populations. The study also quantified changes in fluid distribution over time scales longer than the duration of scans, showing that pore geometry significantly controls flow regime.
Article
Chemistry, Physical
L'udmila Hodasova, Carlos Aleman, Luis J. del Valle, Luis Llanes, Gemma Fargas, Elaine Armelin
Summary: The study focused on preparing and characterizing a polymer-ceramic composite material for dental applications with properties of biocompatibility and resistance to fracture and wear. Results showed that the polymer infiltrated among the ceramic filaments acted as a safety damper, preventing crack propagation and ensuring material flexibility. The combination of fast robocasting of ceramic paste and covalent bonding of polymer adhesive demonstrated potential for future dental implant applications.
Article
Materials Science, Ceramics
Yu Zheng, Xudong Luo, Jiegang You, Zijun Peng, Shuhao Zhang
Summary: The study successfully fabricated three-dimensional ceramic foams with an open-channel structure, demonstrating superior performance for applications in catalyst loaders, filtrations, and adsorptions.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2021)
Article
Materials Science, Multidisciplinary
Dominik Horny, Katrin Schulz
Summary: In this paper, a new algorithm for analyzing interpenetrating metal ceramic composite structures is introduced. The method generates microstructures and provides numerical insights into the material properties. The importance of the local geometrical sphere arrangement in relation to mechanical behavior is highlighted, and the potential of the method for investigating failure mechanisms is discussed.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Chemical
Jhony T. Teleken, Marintho B. Quadri, Antonio P. N. Oliveira, Joao B. Laurindo, Ashim K. Datta, Bruno A. M. Carciofi
Summary: This study proposed a mathematical model for describing the drying process of porous media under microwave heating in a vacuum, validated through experiments on ceramic samples. The research found that drainage is the primary mode of transport in microwave vacuum drying, with the evaporation rate constant identified as a key parameter affecting drying kinetics.
Article
Engineering, Chemical
Leticya Lais Coelho, Marco Di Luccio, Dachamir Hotza, Regina de Fatima Peralta Muniz Moreira, Anderson Camargo Moreira, Celso Peres Fernandes, Kurosch Rezwan, Michaela Wilhelm
Summary: This study successfully produced highly permeable ceramic membranes suitable for microfiltration by combining tape casting and phase inversion techniques. Increasing alumina loading was observed to improve mechanical resistance and flux of the membranes.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Bruno Henriques, Douglas Fabris, Elvira Lopes, Anderson C. Moreira, Iara F. Mantovani, Celso P. Fernandes, Marcio C. Fredel
Summary: The addition of Ni-coated carbon nanotubes effectively increased the mechanical strength of zirconia cellular structures, resulting in reduced overall porosity and improved sintering kinetics. The compressive strength and elastic modulus of the samples significantly improved after incorporating Ni-coated CNTs.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Ceramics
Luyza Bortolotto Teixeira, Elisangela Guzi de Moraes, Antonio Pedro Novaes de Oliveira
Summary: During the processing and use of glass and glass-ceramic products, defects can compromise their mechanical strength. Ion exchange is a method used to increase mechanical strength, where an ion from an external source replaces another ion in the material, resulting in residual compressive stress on the surface. In this study, ion exchange was applied to sintered glass-ceramic samples and it was found that the appropriate ion exchange can significantly improve the mechanical strength of the material.
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
(2022)
Article
Dentistry, Oral Surgery & Medicine
Mariane B. Sordi, Raissa B. Curtarelli, Iara F. Mantovani, Anderson C. Moreira, Celso P. Fernandes, Ariadne C. C. Cruz, Ricardo S. Magini
Summary: The study showed that embedding simvastatin in PLGA + HA/β-TCP scaffolds significantly enhanced the osteoinductive capacity of the scaffolds. The release profile of simvastatin was sustained over time, reaching 40% drug release at day 28. Scaffold with simvastatin promoted the highest osteogenic differentiation of SHED compared to control groups.
CLINICAL ORAL INVESTIGATIONS
(2022)
Article
Construction & Building Technology
Patricia de Oliveira Piccolo, Alexandre Zaccaron, Luyza Bortolotto Teixeira, Elisangela Guzi de Moraes, Oscar Rubem Klegues Montedo, Antonio Pedro Novaes de Oliveira
Summary: A translucent ceramic was developed using porcelain stoneware paste modified with a frit to enhance translucency. The C06 composition showed superior translucency and stain resistance, making it suitable for ceramic tile production.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Luyza Bortolotto Teixeira, Elisangela Guzi de Moraes, Antonio Pedro Novaes de Oliveira
Summary: Ion exchange is a chemical method that can enhance the mechanical strength of glass-based materials. The study found that ion exchange in lithium-based sintered glass-ceramics can increase the mechanical strength but also decrease it.
Article
Materials Science, Ceramics
Elisangela Guzi de Moraes, Igor Maia Ferreira, Luyza Bortolloto Teixeira, Luiz Henrique Cartapati, Marcelo Tramontin Souza, Antonio Pedro Novaes de Oliveira
Summary: The robocasting technique is used to produce cellular glass structures by direct printing using bentonite to overcome the lack of plasticity of glass powders. Ceramic inks containing recycled glass powders and bentonite were printed and resulted in components with high porosity, large pore sizes, and good compressive strength.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Raoul Djou Fopa, Carlo Bianco, Nathaly Lopes Archilha, Anderson Camargo Moreira, Tannaz Pak
Summary: Nanoremediation is a new technology that uses nanoparticles to degrade groundwater contaminants in-situ. This study examines the transportation of zero-valent iron nanoparticles in porous media and finds that particle size and composition affect their mobility and retention. The experiment also shows that nanoparticle injection changes the pore structure and reduces porosity and permeability.
JOURNAL OF CONTAMINANT HYDROLOGY
(2023)
Article
Engineering, Chemical
Murilo Daniel de Mello Innocentini, Carlos Eduardo Formigoni
Summary: This study presents a simplified pressure-decay method for evaluating the permeability of polymeric films. The method eliminates the need for both vacuum and pressure operations and includes gas compressibility in the calculations. The equipment is inexpensive and provides more realistic equations for calculating the permeability coefficients compared to the standard method. Validation tests with commercial films showed close agreement with literature values, and significant errors were observed when gas compressibility was ignored.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Paleontology
Geise de S. Anjos Zerfass, Claudia G. Cetean, Lucas Del Mouro, Christiano Ng, Henrique Zerfass, Anderson Camargo Moreira
Summary: In this study, 2D and 3D imaging techniques were used to solve the taxonomy issues of benthic foraminifera in Mesozoic basins of Brazil. Two agglutinated foraminiferal genera and a new species were identified. The paleoenvironmental implications of the foraminifera-bearing strata were also discussed.
Article
Construction & Building Technology
Marcelo Tramontin Souza, Igor Maia Ferreira, Elisangela Guzi de Moraes, Luciano Senff, Sabrina Arcaro, Jose Renato Castro Pessoa, Manuel J. Ribeiro, Antonio Pedro Novaes de Oliveira
Summary: Printable concretes require specific rheological properties that can be improved with chemical additives, but interactions between different additives in co-assembly can affect their effectiveness.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
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
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
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
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
Kaibiao Xi, Jiacheng Liu, Beibei Song, Huarong Cheng, Yihao Li, Xiaole Yu, Mupeng Zheng, Mankang Zhu, Yudong Hou
Summary: Composite modulation in the superparaelectric state of the BTBZ-CT system is proposed as an effective strategy to achieve both NTCC and excellent energy storage performance in dielectric ceramics. The addition of BZ and CT to BT ferroelectrics can move the SPE state to the normal use temperature zone, resulting in enhanced NTCC characteristics and energy storage performance. Furthermore, intentional precipitation of CT at grain boundaries can refine the grain size, increase the bandgap, and strengthen the local electric field distribution, thereby enhancing the breakdown electric field.
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
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
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
Sehreish Abrar, Faisal Nazeer, Zhuang Ma, Ling Liu, Abdul Malik, Mustafa Kamal, Abdullah G. Al-Sehemi
Summary: To raise the operating temperature of Si-based ceramic matrix composites (CMCs), researchers have applied thermal/environmental barrier coating (T/EBCs) materials, typically rare earth silicates. However, the high thermal conductivity and the mismatch of thermal expansion have been major challenges in developing new materials that can offer thermal insulation and environmental protection to CMCs. In this study, entropy engineering was used to create a multicomponent equi-atomic single-phase pyro silicate with extremely low thermal conductivity and enhanced water vapor corrosion resistance. The research findings show the potential of high entropy disilicates in achieving ultra-low thermal conductivity and low weight loss in corrosive environments.
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
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
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)
Article
Materials Science, Ceramics
Bo-Wen Chen, Yan-Mei Kan, De-Wei Ni, Chun-Jing Liao, Hong-Da Wang, Yu-Sheng Ding, Shao-Ming Dong
Summary: This study characterized the long-term and repeated ablation properties of modified Cf/HfC-SiC composites with YB4-Al2O3-Si3N4 under an air plasma torch. The structural stability and viscosity of the oxide layer were found to affect the ablation resistance of the composites. By forming nano c-HfO2 grains and high-viscosity Al-Si-Y-O glassy phase, the structural stability of the oxide layer was improved, resulting in enhanced ablation resistance. However, the oxidation of Si3N4 led to the formation of NO, NO2, and excessive SiO2 glassy phase, which resulted in a porous structure and reduced the viscosity of the oxide layer. Therefore, the addition of Si3N4 decreased the ablation resistance of the composites.
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)
