Article
Engineering, Manufacturing
L. Celko, V Gutierrez-Cano, M. Casas-Luna, J. Matula, C. Oliver-Urrutia, M. Remesova, K. Dvorak, T. Zikmund, J. Kaiser, E. B. Montufar
Summary: This study comprehensively characterized the porosity of hydroxyapatite ceramic parts through multiple experimental methods, focusing on engineered pores and hollow defects. Guidelines to avoid the formation of hollow defects were discussed, along with highlighting experimental methods for distinguishing between pores and hollow defects.
ADDITIVE MANUFACTURING
(2021)
Article
Construction & Building Technology
Zhiqiang Cheng, De Zhang, Shengjia Xie, Pawel Polaczyk, Xiaoyang Jia, Tao Wang, Baoshan Huang, Ming Cai
Summary: In this study, a novel lab compaction method combining the effects of vibratory and gyratory compaction was proposed to better simulate the vibration and kneading effect of a steel-wheel roller. X-ray tomography was used to compare the air void distribution of in-situ core samples and laboratory-compacted samples by different compaction methods. The results showed that the combination of vibratory and gyratory compaction methods had a comparable air void distribution and compaction effect to the in-situ core samples.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Ceramics
Faheem Muhammed, Tania Lavaggi, Laure Moretti, Suresh Advani, John W. Gillespie
Summary: Carbon-carbon composites (CCCs), as carbon-fiber reinforced materials, exhibit excellent thermomechanical properties under extreme environmental conditions. In order to reduce cost and processing time, a 7-hour pyrolytic schedule was proposed and successfully achieved for a thermoset benzoxazine-derived CCCs through an optimization process. The optimization involved using a multi-stage nth-order kinetics model to limit individual reaction rates and prevent layer separations and fiber rupture during thermal processing. X-Ray 3D Computed Tomography was used to evaluate the modified results post heat treatment, ensuring a fully interconnected porous microstructure with minimal closed void volume. A 1D model was also proposed to predict internal pressure generated during the final ramp, providing upper bounds for the optimization protocol in terms of sample thicknesses and applied ramp rates.
CERAMICS INTERNATIONAL
(2023)
Article
Geochemistry & Geophysics
Michael J. Heap, Gabriel G. Meyer, Corentin Noel, Fabian B. Wadsworth, Patrick Baud, Marie E. S. Violay
Summary: The permeability of volcanic rock can be measured in the brittle and ductile regimes, showing a relatively constant rate after shear fracture formation in the former and a continual decrease in the latter. The evolution of permeability in volcanic rock may improve volcano monitoring and hazard mitigation models.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Soil Science
Ceres Perezvargas y Castor, Alfonso Gastelum-Strozzi, Stephane Sammartino, Eric Michel, Jerome Vicente, Blanca Prado
Summary: Wastewater agricultural irrigation is a common practice to combat water scarcity, but it may affect soil structure. This study investigated the long-term effects of wastewater irrigation on soil structure and found that it led to higher organic carbon and nitrogen contents, as well as increased aggregate stability. These findings enhance our understanding of the impacts of wastewater irrigation on soil structure and provide a better assessment of its benefits and risks.
Article
Materials Science, Ceramics
A. Zocca, B. R. Mueller, R. Laquai, A. Kupsch, F. Wieder, S. Benemann, J. Wilbig, J. Guenster, G. Bruno
Summary: The microstructure of an apatite-wollastonite glass-ceramic was analyzed using 2D microscopy, phase analysis, X-ray absorption, and synchrotron X-ray refraction computed tomography (XCT and SXRCT). The combination of these techniques allowed for comprehensive characterization of the microstructure at different scales. The material exhibited a complex microstructure with a glassy matrix and embedded fluorapatite and wollastonite crystals, forming spiked structures resembling sea urchins. SXRCT revealed the 3D distribution of these structures with excellent contrast, and SEM-EDX analysis identified them as composed of sub-micrometric fluorapatite and diopside crystals.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Fabien Leonard, Axel Lange, Andreas Kupsch, Bernd Randolf Mueller, Giovanni Bruno
Summary: This study investigates the anisotropy of materials' microstructure and morphology in diesel particulate filter (DPF) materials, quantifies the morphological anisotropy using a simple segmentation algorithm, and correlates the anisotropy of the pore space with the microstructure and crystallographic anisotropy of the material.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Materials Science, Coatings & Films
B. A. Kahl, Y. S. Yang, C. C. Berndt, A. S. M. Ang
Summary: The porosity of ceramic coatings deposited by atmospheric plasma spray (APS) was evaluated using Data-Constrained Modelling (DCM) of X-ray Micro-Computed Tomography (X-ray mu-CT) datasets. The results from 3D analysis were compared to 2D porosity estimations. The DCM method accurately quantified the porosity of coatings and demonstrated the deficiencies of traditional 2D assessments.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Ercan Cakmak, Philip Bingham, Ross W. Cunningham, Anthony D. Rollett, Xianghui Xiao, Ryan R. Dehoff
Summary: This study focuses on the non-destructive characterization of additively manufactured parts using x-ray computed tomography. It compares laboratory XCT and synchrotron-based XCT, concluding that laboratory XCT is a compelling alternative for static defect characterization in AM parts, while synchrotron-based techniques offer unmatched performance for dynamic and sub-micron studies.
MATERIALS CHARACTERIZATION
(2021)
Article
Geochemistry & Geophysics
Youssouf Abdallah, Jean Sulem, Michel Bornert, Siavash Ghabezloo, Ioannis Stefanou
Summary: The study investigates the formation mechanisms of compaction bands using Digital Volume Correlation and X-Ray Computed Tomography images of Saint-Maximin limestone samples. A new analysis method is proposed to identify the type of observed localization bands. Results show that compaction bands are found at different confining pressures compared to shear bands, with porosity heterogeneity significantly affecting strain localization. Scanning Electron Microscopy observations reveal differences in grain crushing and cement cracking in high and low-porosity zones.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Engineering, Geological
Ghassan Shahin, Athanasios Papazoglou, Ferdinando Marinelli, Gioacchino Viggiani, Giuseppe Buscarnera
Summary: This paper investigates the anisotropic behavior of a high-porosity carbonate rock and analyzes the influence of coring direction on yielding and compaction behavior. The results show that the coring direction has a significant impact on the mechanical response, but the strain localization mode is primarily affected by the confinement level. By introducing an elastoplastic constitutive law, the interaction between material anisotropy and compaction behavior is successfully captured.
INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
(2022)
Article
Engineering, Civil
Tiande Wen, Xiangsheng Chen, Longtan Shao
Summary: This study examined the macropore structure of granite residual soil during multiple wetting and drying cycles using X-ray computed tomography. The results showed that the cycles caused soil shrinkage and reduced pore connectivity, leading to an increase in isolated pores. Wetting contributed to the recovery of lost pores and connections, increasing pore space and porosity. The connected macropores played a decisive role in the soil's saturated hydraulic conductivity.
JOURNAL OF HYDROLOGY
(2022)
Review
Soil Science
D. Luke R. Wardak, Faheem N. Padia, Martine I. de Heer, Craig J. Sturrock, Sacha J. Mooney
Summary: This paper reviews 34 studies that demonstrate the influence of zero-tillage (ZT) on porosity, depending on soil texture, pore size class, and depth. ZT can also affect important transport mechanisms that impact the fate of agrochemicals in soils, although the effects on hydraulic transport are less clear.
Article
Engineering, Chemical
Imen Boudina, Eric Rondet, Saeid Nezamabadi, Tahmer Sharkawi
Summary: This study developed a new approach to evaluate the deformation behavior of pellets under compression by combining tableting data and compression models with X-ray micro computed tomography (XMT) image analysis. The study investigated the deformation behavior of different pellets and found that XMT can be used as a tool to characterize the mechanical behavior of pellet particles during compression.
Article
Materials Science, Multidisciplinary
Gaku Okuma, Naoya Saito, Kotaro Mizuno, Yoshiki Iwazaki, Hiroshi Kishi, Akihisa Takeuchi, Masayuki Uesugi, Kentaro Uesugi, Fumihiro Wakai
Summary: Synchrotron X-ray nano computed tomography was used to investigate the microstructural evolution during co-sintering of multi-layer ceramic capacitors. The study revealed that reducing electrode thickness can lead to internal electrode defects, and the discontinuous electrode region contains round holes and irregularly-shaped channels, while the evolution of electrode morphology is influenced by surface/interface diffusion.
Article
Mechanics
Amine Bouterf, Stephane Roux, Francois Hild, Guillaume Vivier, Xavier Brajer, Eric Maire, Sylvain Meille
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2015)
Article
Engineering, Biomedical
S. Cottrino, D. Fabregue, A. P. Cowie, J-L Besse, S. Tadier, L. Gremillard, D. J. Hartmann
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2016)
Article
Materials Science, Multidisciplinary
Clemence Petit, Eric Maire, Sylvain Meille, Jerome Adrien, Shingo Kurosu, Aldhiko Chiba
MATERIALS CHARACTERIZATION
(2016)
Article
Materials Science, Multidisciplinary
Clemence Petit, Eric Maire, Sylvain Meille, Jerome Adrien
MATERIALS & DESIGN
(2017)
Article
Materials Science, Multidisciplinary
Florian Bouville, Eric Maire, Sylvain Deville
JOURNAL OF MATERIALS RESEARCH
(2014)
Article
Materials Science, Ceramics
Florian Bouville, Etienne Portuguez, Yunfei Chang, Gary L. Messing, Adam J. Stevenson, Eric Maire, Loic Courtois, Sylvain Deville
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2014)
Article
Chemistry, Multidisciplinary
Florian Bouville, Eric Maire, Sylvain Deville
Article
Nanoscience & Nanotechnology
Guillermo Requena, Eric Maire, Claire Leguen, Sandrine Thuillier
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2014)
Article
Chemistry, Physical
Katrin Bugelnig, Holger Germann, Thomas Steffens, Federico Sket, Jerome Adrien, Eric Maire, Elodie Boller, Guillermo Requena
Article
Chemistry, Physical
Yasin Amani, Sylvain Dancette, Eric Maire, Jerome Adrien, Joel Lachambre
Article
Chemistry, Physical
Eric Maire, Stanislas Grabon, Jerome Adrien, Pablo Lorenzino, Yuki Asanuma, Osamu Takakuwa, Hisao Matsunaga
Article
Materials Science, Ceramics
Ronan Henry, Hassan Saad, Sandrine Dankic-Cottrino, Sylvain Deville, Sylvain Meille
Summary: In this study, the addition of zirconia particles was investigated to enhance the mechanical properties of nacre-like alumina ceramic composite. It was found that tetragonal zirconia improves the fracture resistance properties of the composite.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Sandrine Cottrino, Thomas Gaudisson, Stephane Pailhes, Emanuela Archina Ferrara, Shashank Mishra, Stephane Daniele, Mohamed Mezouar, Alain Largeteau, Yann Le Godec, Sylvie Le Floch
Summary: This study investigated the influence of very high pressure on the sintering temperature, phase transition, and grain growth of a 15 nm TiO2 nanopowder during Spark Plasma Sintering (SPS). In situ synchrotron X-ray diffraction was used to track the evolution of crystalline phases and crystallite size as a function of temperature at pressures of 1.5 and 3.5 GPa. Laboratory SPS experiments were also conducted using a Paris-Edinburgh press and a high-pressure module adapted to standard SPS equipment, exploring the pressure effect in the range of 76 MPa to 3.5 GPa. The results showed that highly dense nanostructured ceramics can be achieved at low sintering temperatures under very high pressure. By heating at only 560 degrees C under 1 GPa pressure, the grain growth was limited to an average size of 233 nm, and a relative density of 98% was achieved.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Alexandre Verchere, Sandrine Cottrino, Gilbert Fantozzi, Shashank Mishra, Thomas Gaudisson, Nicholas Blanchard, Stephane Pailhes, Stephane Daniele, Sylvie Le Floch
CERAMICS-SWITZERLAND
(2020)
Article
Chemistry, Physical
Alexandre Verchere, Stephane Pailhes, Sylvie Le Floch, Sandrine Cottrino, Regis Debord, Gilbert Fantozzi, Shantanu Misra, Christophe Candolfi, Bertrand Lenoir, Stephane Daniele, Shashank Mishra
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Shuai Zhang, Shuye Zhang, Hongzhi Zhou, Kyung-Wook Paik, Tianran Ding, Weimin Long, Sujuan Zhong, Peng He
Summary: Microwave Hybrid Heating (MHH) is a promising method for material joining, allowing for selective and uniform heating. This experimental study focused on investigating the characteristics and reliability of joints made using nano-Sn-3.0Ag-0.5Cu soldering paste and MHH technique. The research findings showed that the shear strength of the joints reached its peak value under specific microwave power and exposure time, but decreased after thermal shock tests.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Peibin Ma, Mingyang Wang, Aiying Chen, Lijian Gu, Zhiyi Ding, Xiaogui Wang, Bin Gan
Summary: Nano-twinned boundaries in high-temperature alloys play a crucial role in regulating the distribution of nano-precipitates and enhancing mechanical properties.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jiachen Zhang, Fan Lu, Xinxin Liu, Taiwen Huang, Rui Li, Changsheng Tan, Guojun Zhang, Lin Liu
Summary: This study investigates the effects of Re and Ta interactions on the precipitation of the TCP phase in experimental alloys under long-term thermal exposure. The study finds that microstructure segregation is not fully eliminated even with standard heat treatment, and the interaction between Re and Ta enhances the formation of the TCP phase. Thermodynamic calculations and first-principles analysis reveal that Re significantly improves the driving force of TCP phase precipitation. The study also observes a phase transition from the sigma-phase to the P-phase, with Ni playing a crucial role in the diffusion process.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Ronit Roy, Adil Shaik, Matthew Topping, Fei Long, Mark R. Daymond
Summary: This study demonstrates the improvements in characterizing localized dislocation distribution using the HR-EBSD method compared to the conventional approach. Two extreme examples of deformation conditions were investigated to show the efficacy of HR-EBSD in identifying dislocations and subtle features. The direct correlation between slip bands and HR-EBSD estimated GNDs is also presented, enhancing the scope of this approach in identifying individual slip bands.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wenshan Guo, Hui Zhang, Qingjun Zhou, Guangchun Xiao, Ning Guo, Wei Zhao, Gang Wang
Summary: The microstructures and corrosion resistance of TC11 components were significantly improved using a high-power, high-speed laser metal deposition (LMD) process and subsequent post-heat treatment, with greater improvements observed in the deposition direction. The significant improvement of corrosion resistance in the deposition direction is mainly due to the weakening of the charged galvanic corrosion effect between the non-interlayer zone and interlayer zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Xu, Rui Cao, Junheng Gao, Yu Zhang, Haitao Zhao, Shuize Wang, Yuhe Huang, Guilin Wu, Honghui Wu, Chaolei Zhang, Xinping Mao
Summary: In this study, the microstructures and mechanical properties of interphase precipitation strengthening micro-alloyed steels were investigated. The addition of Cr was found to increase the yield strength without significant decrease of ductility. Thermodynamics analysis revealed that the addition of Cr led to grain refinement and decrease of sheet spacing of nanoprecipitates. Calculations showed that the decrease of interphase-precipitated carbides sheet spacing and the refinement of grain size were responsible for the strength enhancement of Cr microalloyed steel.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxin Zhong, Biao Zhang, Yuhan Ren, Jian Ye, Jiawei Zhang, Feng Ye
Summary: In this study, bioinspired web-liked multiphase composites were successfully constructed using boron-modified polysilazane polymer. The composites consisted of long TiB nanowires as 'web' and hybrid TiC and Ti3Si particles as 'nodes'. The enhanced strength of these composites was attributed to the synergistic load transfer of the hybrid reinforcements. This study provides a promising design approach for developing high-performance composites with high reinforcement content, utilizing polymer instead of traditional ceramic powder.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Geng Liu, Linran Yu, Jie Su, Ran Ding, Min Xiong, Qi Gao
Summary: In this study, a flash austenitization heat treatment approach was used to achieve a dual-phase microstructure consisting of retained austenite and fine-grained ferrite in low-carbon TRIP steel. Phase-field simulations revealed the acceleration of ferrite transition kinetics in the Mn-depleted region and the influence of chemical heterogeneity of C and Mn on the stabilization of austenite.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zhichao Yang, Dehui Zheng, Zhen Wang, Tingbin Liang, Shuangbao Wang
Summary: In this study, the configurations, formation process, and properties of the Cu-rich layer formed during TJE of Al alloys were revealed using aberration-corrected scanning TEM (STEM), STEM image simulations, and first-principles calculations. The results showed a new orientation relationship between the Cu-rich layer and Al matrix, and provided insights into the formation mechanisms of the Cu-rich layer and Cu diffusion zone.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Shuai Chen, Ruyu Tian, Jiayue Wen, Yanhong Tian
Summary: In this study, the interfacial microstructure evolution and reliability of Cu/Sn-3.0Ag-0.5Cu (SAC305)/Ni and Cu/Sn-3.0Ag-0.5Cu-0.05TiO2 (SAC305-0.05TiO2)/Ni interconnections under thermal shock were investigated. The results showed that the addition of TiO2 nanoparticles can suppress the growth of interfacial IMCs and improve the reliability of the connections.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Yunbin Lu, Yangju Feng, Wei Wang, Wenke Wang, Jianlei Yang, Wenzhen Chen, Guorong Cui, Dongdong Zhuang, Hongyang Cao
Summary: In order to improve the wear resistance of titanium alloy, titanium matrix composites with network distributed TiBw were fabricated. The results showed that the wear rate of the composites decreased by 17.2% at room temperature and 38.4% at high temperature compared to the TA15 alloy. The TiBw in the composites enhanced work hardening, improved thermal conductivity, and effectively hindered dislocation movement and promoted dynamic recrystallization during high-temperature wear.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Jubert Pasco, Lu Jiang, Thomas Dorin, Ali Keshavarzkermani, Youliang He, Clodualdo Aranas Jr
Summary: The unique structure and solute distribution of CoCrMo alloys produced using Laser Powder Bed Fusion technique require custom heat-treating processes to achieve the targeted phase distribution and mechanical properties. This study investigates the phase transformation behavior and precipitate distribution of CoCrMo samples after aging heat treatment. The results show differences in phase fraction and nucleation sites between directly aged and solution heat-treated samples.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zipeng Ma, Meng Zhou, Baohong Tian, Yi Zhang, Heng Li, Xu Li, Jin Zou, Haoyan Hu, Ke Jing, Yong Liu, Alex A. Volinsky
Summary: In this study, two electrical contact composites were prepared using the vacuum hot pressing sintering endo-oxidation method. The addition of Y2O3 had no negative effects on the electrical conductivity and hardness of the composites. Moreover, it reduced the welding force and arc energy, and improved the stability of the contacts.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Wei Sun, Ning Cui, Shuling Zhang, Tiewei Xu, Xiaopeng Wang, Fantao Kong
Summary: A laminated composite was successfully fabricated and its microstructure and mechanical properties were investigated. The composite exhibited high bonding strength, improved flexural strength and fracture toughness, and superior tensile properties compared to the monolithic alloy.
MATERIALS CHARACTERIZATION
(2024)
Article
Materials Science, Multidisciplinary
Zih-You Wu, Yin-Ku Lee, Su-Yueh Tsai, Po-Yu Chen, Jenq-Gong Duh
Summary: With the development of the artificial intelligence (AI) industries, electronic packaging is advancing towards high density, high efficiency, and multi-functionality. The application of microbumps is necessary to achieve high density and small-scale interconnection. In this study, three types of full intermetallic compounds (IMCs) bumps were fabricated, and the mechanical and thermal properties of IMCs were analyzed. The results showed that the full IMCs bumps with added Ni and Zn exhibited consistent structure and excellent thermal stability, providing a reliable microstructure for application.
MATERIALS CHARACTERIZATION
(2024)
