Article
Multidisciplinary Sciences
Matthias Weber, Andreas Griesser, Dennis Mosbach, Erik Glatt, Andreas Wiegmann, Volker Schmidt
Summary: In this paper, a data-driven approach is used to analyze the microstructure and functionality of 3D virtual fiber systems. A stochastic 3D model is developed to simulate systems of curved fibers, similar to nonwovens, based on tomographic image data. This model allows for efficient scenario analysis to understand how the properties of functional materials depend on their 3D microstructure. The study begins by considering single fibers as polygonal tracks modeled by a third-order Markov chain. A copula-based transition function is then used to vary both intrinsic fiber properties and external effects independently. This single-fiber model is then applied to the entire fiber system observed in a bounded sampling window and fit it to two different 3D datasets of nonwovens. The goodness of fit is evaluated by comparing geometric descriptors of the 3D morphology of model realizations with the tomographic image data.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Mirela M. Codescu, Alina Vladescu, Victor Geanta, Ionelia Voiculescu, Iulian Pana, Mihaela Dinu, Adrian E. Kiss, Viorel Braic, Delia Patroi, Virgil E. Marinescu, Mihai Iordoc
Summary: In this paper, a novel biocompatible alloy, FeMoTaTiZr, was functionalized with hydroxyapatite-based coatings (HAP) to enhance biocompatibility, bioactivity, and corrosion resistance for bone implants. The HAP coatings were doped with a small amount of Zn to confer antibacterial properties. Experimental results showed that the addition of Zn significantly increased the roughness of the coated substrate.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Physical
Hao Du, Manqing Ai, Shuang-Shuang Lyu, Ping-Ping Zhang, Xue-Gang Chen, Aimin Jin, Ying Ye
Summary: In this study, porous biomass carbon/ferrite nanocomposites were systematically prepared and investigated for their magnetic and dielectric losses. It was found that the magnetic loss is mainly caused by the eddy current effect, and better magnetic loss effects can be achieved by adjusting the particle sizes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Ana C. Murrieta, Danyel Cavazos-Cavazos, Pamela Santos-Aguilar, Jorge L. Cholula-Diaz, Flavio F. Contreras-Torres
Summary: X-ray line profile analysis was used to study the microstructures of gold nanoparticles and gold thin-films, revealing larger crystallite size and lower dislocation density in AuTFs compared to AuNPs. The differences in strain, average distances among dislocations, and broadening effects were observed between AuNPs and AuTFs, suggesting different mechanisms contributing to the line broadening in the two types of samples.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Sven E. Gustafson, Darren C. Pagan, Paul A. Shade, Michael D. Sangid
Summary: Elastic micromechanical fields of a nickel-based superalloy polycrystal are tracked using high energy X-ray diffraction microscopy (HEDM) to determine intragranular deformation metrics during cyclic high temperature loading. Results show that elevated temperatures lead to complex interactions among grains, with greater recovery observed at higher temperatures.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Ceramics
Xing-Han Chen, Kun Zhai, Guo-Yu Qian, Qing-Shan Fu, Chiranjib Chakrabarti, Cang-Long Li, Hong-Xia Yin, Yang Qiu, Zhao-Ming Tian, Song-Liu Yuan
Summary: This study experimentally investigated the influence of applied magnetic field and Mg doping on the room-temperature magnetoelectric coupling effects in BaSrCo2-xMgxFe11AlO22. The results showed that an appropriate amount of Mg doping could enhance the magnetoelectric coupling effects and modulate the magnetic anisotropy in the samples.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Physics, Applied
Xuhui Lou, Xu Hou, Yujun Chen, Jianxiang Wang, Shengyou Yang, Haidong Fan, Jie Wang, Xiaobao Tian
Summary: A novel grain boundary (GB) model based on the formation mechanism is established for investigating the effect of GBs on polycrystalline ferroelectrics at the mesoscopic scale. The GB model provides mechanistic explanations for the relationship between coercive electric field and the proportion of GBs. Additionally, the proportion of GBs significantly affects the electric field distribution in grains.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Bing Li, Bahman Nasiri-Tabrizi, Saeid Baradaran, Chai Hong Yeong, Wan Jefrey Basirun
Summary: An ultrasonic-assisted preparation strategy was used to synthesize a potential biomaterial for bone regeneration, consisting of in-situ hydroxyapatite-reduced graphene oxide nanocomposite with optimal crystallite size and plate-shaped HA nanocrystals. Increasing power led to enhanced chemical interactions between rGO and HA, resulting in higher perturbation levels.
Article
Chemistry, Physical
Guvenc Akgul, Funda Aksoy Akgul
Summary: A series of zinc oxide semiconductor nanocomposites doped with different concentrations of cobalt were synthesized using a simple and effective mechanical ball-milling method. The resulting nanocomposites crystallized in a hexagonal wurtzite structure and exhibited ferromagnetic behavior at room temperature.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Engineering, Biomedical
Jia Qing Isaiah Chua, Thorbjorn Erik Koppen Christensen, Jonas Palle, Nina Kolln Wittig, Tilman A. Grunewald, Jan Garrevoet, Kathryn M. Spiers, Hiram Castillo-Michel, Andreas Schramm, Wang Loo Chien, Radoslaw M. Sobota, Henrik Birkedal, Ali Miserez
Summary: The stomatopod Odontodactylus scyllarus uses weaponized club-like appendages to attack its prey. These clubs are made of apatite, chitin, amorphous calcium carbonate, and amorphous calcium phosphate organized in a highly hierarchical structure with multiple regions and layers. This study investigates the biomineralization history of the clubs and reveals the spatio-temporal changes in biomineral structure during club formation. The results show that the club structure is more organized than previously thought, with variations in crystal orientation and a thin membrane rich in bromine coating the impact surface.
ACTA BIOMATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
Michal Sakajio, Vadim Beilin, Meirav Mann-Lahav, Shai Zamir, Gennady E. Shter, Gideon S. Grader
Summary: This study successfully produced highly transparent MgO ceramics using spark plasma sintering at relatively low temperature and pressure, and investigated the effect of LiF on their microstructural and optical properties. The results showed outstanding transparency in MgO ceramics in the 800 nm range, close to the theoretical value.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Jae-Kyung Han, Xiaojing Liu, Isshu Lee, Yulia O. Kuzminova, Stanislav A. Evlashin, Klaus-Dieter Liss, Megumi Kawasaki
Summary: In this study, structural evolution of additive manufactured 316L stainless steel through post-printing nanostructuring using high-pressure torsion at room temperature was investigated. The formation of a martensite phase and significant strain gradients were observed in the nanostructured austenitic steel. Early stage structural changes were attributed to lattice distortion by excess of dislocations and defects.
Article
Materials Science, Multidisciplinary
Yu-Zhou Zhang, Shi-Rong Zhang, Dun-Bo Yu, Yang Luo, Ning-Tao Quan, Wen-Long Yan, Kuo-She Li
Summary: Through experiments conducted under different Ar gas pressures and substrate temperatures, it was found that low Ar gas pressure and sufficient deposition time contribute to the formation of Gd hcp phase with better magnetic properties. High substrate temperature helps reduce the internal stress in Gd films and promotes lattice parameters closer to those of the ideal Gd hcp structure.
Article
Engineering, Biomedical
Tadaaki Matsuzaka, Aira Matsugaki, Takayoshi Nakano
Summary: The study elucidated the relationship between mechanical stimuli and the formation of anisotropic collagen/apatite microstructure, as well as the role of prostaglandin E2 in oriented collagen/apatite organization in bone tissue.
Article
Chemistry, Multidisciplinary
Suad Alghamdi, Stephanie Bennett, Carol Crean, Joydip Ghosh, Harry Gibbard, Robert Moss, Justin Reiss, Douglas Wolfe, Paul Sellin
Summary: In this study, we investigated the performance of formamidinium lead bromide (FAPbBr(3)) perovskite X-ray detectors fabricated from polycrystalline material. We found that increasing the pressure and annealing have positive effects on the microstructure, density, stability, and charge transport performance of the devices.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Ceramics
Zilong Xiong, Wenzhuo Xue, Mujun Li, Feihu Tan, Yupeng Chen, Hongyu Yu
Summary: In this study, CBS glass/Al2O3 composites were developed for LTCC applications based on a CaO-B2O3-SiO2 (CBS) glass system with a high boron content. The study revealed that the softening of glass and interfacial reaction between the glass and Al2O3 were the two most important factors affecting LTCC's densification process. Real-time shrinkage rate of LTCC during sintering was successfully simulated, and it was proven that the formation of the CaAl2(BO3)O phase played a significant role in reducing glass viscosity and promoting dense structure formation. The resulting LTCC composite exhibited excellent performance for high-frequency applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Saurabh Kumar Sharma, Vinita Grover, Rakesh Shukla, Abid Hussain, Ambuj Mishra, Pawan Kumar Kulriya
Summary: In this study, the disordering caused by swift heavy ion irradiation in two different compositions of pyrochlore structures was investigated. X-ray diffraction, Raman spectroscopy, and high-resolution transmission electron microscopy were used to analyze the samples before and after irradiation. It was found that both compositions underwent amorphization due to irradiation, with a slower rate observed in Nd1.8Zr2.2O7.1. The irradiation-induced modified track region in Nd1.8Zr2.2O7.1 consisted of defect-rich pyrochlore structure, anion-deficient fluorite structure, and amorphous domains.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jiabei He, Mengshan Song, Ming Yang, Miaomiao Zhu
Summary: This study investigates the influence of ion irradiation on high-entropy ceramics and finds that irradiation-induced lattice rearrangement can improve the radiation resistance of these ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yajie Yu, Shi He, Zhengang Zhang, Haihua Chen, Peipeng Jin, Binnian Zhong, Linhui Zhang, Liping Wang, Cheng Lu
Summary: Silicide ceramics, including tantalum disilicide (TaSi2), are known for their exceptional physical properties but are limited in practical applications due to their inherent brittleness at room temperature. In this study, we successfully improved the mechanical properties of TaSi2 ceramics and increased their electrical conductivity by modifying the preparation methods and sintering conditions. These findings provide valuable insights for future applications of TaSi2 and the design of advanced ceramic materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jian Li, Jia Liu, Yongcui Zhang, Wei Sun, Yang Wang, Haitao Wu, Ling Li, Chuanbing Cheng, Yingying Wang, Ke Tan, Futian Liu
Summary: Microstructure design plays a crucial role in regulating the microwave dielectric properties of materials, however, the understanding of frequency temperature stability and related micromechanism remains limited. In this study, a combination of first-principles calculations and experimental observation was used to investigate the correlation among sintering behavior, crystal structure, bonding nature, and microwave dielectric properties of LnPO(4) (Ln = Eu, Pr) ceramics. The research findings systematically clarify the optimized effect and micromechanism of lanthanides on the dielectric properties of monazite ceramics, providing insights into the design and enhancement of microwave dielectric materials.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Wenqian Pan, Xizhen Xia, Wei Zhou, Yang Li
Summary: The study investigates the frictional and wear behaviors of carbon fiber-reinforced SiC ceramic matrix composites with different fiber orientations mating with ceramic balls. The results show that fiber orientation significantly affects the friction and wear properties of the composites. Pads with randomly arranged fibers demonstrate better friction stability and lower wear volume, potentially suitable for bearing material applications. The research also explores the factors influencing the formation of continuous tribo-film and identifies abrasive wear and oxidation wear as the dominant wear mechanisms for the friction pairs.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Sergey Nikolaevich Perevislov, Ilya Evgenievich Arlashkin, Valentina Leonidovna Stolyarova
Summary: This paper describes the synthesis and sintering of MAX phases in the Zr-Al-C system. Different mixtures of initial Zr/Al/C and Zr/Al/ZrC powders were used to synthesize Zr2AlC and Zr3AlC2 MAX phases. The highest content of Zr3AlC2 MAX phase was obtained using a component ratio of 1:1.5:2-51.1 vol.% of Zr/Al/ZrC powders.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Weijia Luo, Xubin Wang, Baiheng Bai, Jianli Qiao, Xingcong Chen, Yongzheng Wen, Jingbo Sun, Lingxia Li, Ji Zhou
Summary: This study successfully establishes the relationship between internal strain and dielectric loss by synthesizing and designing specific structure of tungsten bronze ceramics, and concludes that controlling internal strain can effectively reduce dielectric loss. This research is of great significance for the development of future all-ceramic non-Hermitian devices.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Santanu Mondal, Juan Diego Shiraishi Lombard, Sreenivasulu Gollapudi, Carolina Tallon, Jie-Fang Li, Dwight Viehland
Summary: Ultrafast high-temperature sintering (UHS) is an effective method for rapidly densifying ZrB2 powders. The final grain size increases with longer sintering duration. X-ray diffraction and energy-dispersive spectroscopy show crystalline phase and compositional uniformity in ZrB2 after UHS.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
JiaNan Wang, ZhiQiang Li, YongZheng Zhu, Yao Liang, Yan Cui, HuaLong Tao, Bo Song, Alexander Nikiforov, ZhiHua Zhang
Summary: First-principles calculations were performed to investigate the crystal structure, electronic structure, and ion diffusion of sulfur-doped Li2FeSiO4. The results showed that sulfur doping can improve the electronic conductivity and reduce the energy barrier for ion diffusion.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Xiaodi Dai, Serdar Aydin, Mert Yuecel Yardimci, Gunter Reekmans, Peter Adriaensens, Geert De Schutter
Summary: This study investigates the rheological behavior, solidification process, and nanostructure changes of sodium hydroxide-activated slag (NH-AAS) and sodium silicate-activated slag (SS-AAS) pastes over time. The results show that NH-AAS and SS-AAS release similar heat and reach a similar reaction degree at their initial setting times, but have different gel structures.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yanliang Ji, Simon Becker, Zichen Lu, Alexander Mezhov, Regine von Klitzing, Schmidt Wolfram, Dietmar Stephan
Summary: This study reveals the significant influence of resting time on the rheological properties of cement suspensions, which is closely related to non-absorbed polycarboxylate superplasticizers (PCEs) size variation. Adsorbed PCE during resting tends to bridge particles instead of dispersing them, leading to an increased yield stress.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Yifeng Huang, Xin Wang, Yinchang Ma, Xiang Lv, Jiagang Wu
Summary: This study investigates the effect of K/Na ratio on the phase structure, ferroelectric domains, and piezoelectric properties of potassium sodium niobate (KNN)-based ceramics. It reveals that high Na+ content leads to large ferroelectric domains, while high K+ content results in local polarity heterogeneity and distinct dielectric relaxational behavior. The balanced local polarity and stress heterogeneities contribute to improved piezoelectricity.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Zun Xia, Yedong Rong, Hao Li, Ye Dong, Hongbo Yu, Jie Xu, Xiuhui Wang, Jinlong Yang
Summary: This study presents the synthesis of hollow MgAl2O4 particles in situ within porous ceramics, resulting in volume expansion and the formation of a hierarchical pore structure, leading to a significant improvement in compressive strength.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Honglong Wang, Zhiguo Sun, Faming Xia, Chenguang Yang, Xiaoguang Wang, Jintang Li, Linxu Jiang
Summary: In this study, the micro-geometry morphology variation and microstructural transformation mechanism of muscovite crystals under electron beam irradiation were explored. The results revealed the instability of the muscovite lattice under irradiation, as well as the expansion and shrinkage of the lattice with increasing dose. The study also identified changes in chemical structure and other mechanisms involved. These findings are significant for the design of radiation-resistant silicate materials and the manufacturing of electronic components used in the aerospace industry.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)