Article
Polymer Science
Lorenzo Donato Campora, Christoph Metzger, Stephan Daehnhardt-Pfeiffer, Roland Drexel, Florian Meier, Siegfried Fuertauer
Summary: Efficient chemical modification of cellulose nanocrystals often requires the use of aprotic solvents, toxic reactants, harsh reaction conditions, or catalysts, which have negative effects on the properties of the particles. However, this study presents a simple, stable, and environmentally friendly approach for grafting fluorescein isothiocyanate on aqueous cellulose nanocrystals, achieving high grafting yields and good dispersibility by combining and modifying existing methods.
Article
Materials Science, Ceramics
Sen Wang, Feng Liang, Saisai Li, Liang Tian, Shaowei Zhang, Quanli Jia, Shuai Chang, Sheng Yan, Haijun Zhang
Summary: Monophase alpha-Si3N4 was prepared by a salt melt strategy using Si as a starting material. The nitridation of Si in molten salt was enhanced by silicon halides with higher reactive activity, promoting the nucleation of alpha-Si3N4. The lattice mismatch between alpha-Si3N4 and the salts influenced the lateral growth of alpha-Si3N4 nanoplatelets.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Chemistry, Physical
Bandarupalli Krishna, Soumitra Payra, Sounak Roy
Summary: The synthesis of biologically important dihydropyrimidinones over postsynthetic modified Cr-based metal-organic framework materials as heterogeneous catalysts containing Lewis and Bronsted acid sites was reported. The functionalized MOFs demonstrated high catalytic activity and recyclability. Comparative studies showed the superior catalytic performance of the modified MOFs compared to literature reports.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jie Wang, Yukun Zhang, Wujun Chen, Qian Li, Yudong Wu, Hongfei Jiang, Dongming Xing
Summary: Shape control of calcium carbonate particles has been challenging due to its low dispersibility and limited ligand-binding ability. However, the transition behavior from nanoparticles to microscale superstructures has been successfully captured in response to changes in solvent dispersibility. The presence of water in the reaction solution is crucial for triggering the transition and enabling the formation of well-defined superparticles. These ligand-free superstructures show high tolerance to small molecules and have potential for drug delivery applications.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Fei Gao, Yangping Zhang, Bin Zou, Fengxing Jiang, Zhuolin Li, Yukou Du
Summary: In this study, multi-low-dimensional PdPt nanomaterials were designed using a simple one-step approach, showing superior performance in ethanol and ethylene glycol oxidation reactions compared to traditional 2D structures. The unique low-dimensional structures exhibited higher activity and structural stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Wenjie Zhang, Qikun Wang, Xin Chen, Xiaohong Li, Qinghua Long, Chao Wang, Kun Liu, Yongqing Wang, Qibing Chang
Summary: In this study, a high color performance vanadium ion (V4+) doped ZrSiO4 blue pigment with low doping amount was successfully synthesized using an inorganic sol-gel route. The formation mechanism of the pigment was revealed based on phase evolution and color behavior analysis. XPS and XRF analysis confirmed the valence state of vanadium ion as 4+ and its heterogeneous distribution within the pigment particles. The prepared pigment exhibited superior coloring performance and high-temperature stability on ceramic glaze, suggesting its potential application in ceramic decoration.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Somayeh Solgi, Morteza Sasani Ghamsari
Summary: A solid-state reaction route was developed to synthesize SrB6O10 crystalline powders, achieving a shorter synthesis time compared to previous methods. The sample was characterized using various methods, and the results showed that the prepared sample at 840 degrees C with 2.5 h duration consisted of SrB6O10 crystalline powders with a bandgap of 4.96 eV.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Minju Kim, Mohammed O. Bazaid, Hyun Jeong Lee, Seung Soon Jang, Yu Jin Jang, Dong Ha Kim
Summary: The self-assembly technique based on block copolymer (BCP) templates provides a simple and generalized route for the synthesis of diverse chiral inorganic nanoparticles (NPs). The BCP inverse micelles offer a specific environment where DL-alanine induces left-handedness through hydrogen bonding, and this chirality is transferred to the anchored inorganic NPs using BCPs as a chiral host. This design concept provides a step-by-step guide for constructing a viable library of chiral nanostructures and aids in the development of artificial chiral materials.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Dong Shi, Shufen Tan, Yajun Ji, Faxue Lu, Junnan Yao, Lijun Pei
Summary: A three-functional chestnut-like CoZn-LDH was prepared using a simple one-step solvothermal method, showing excellent performance for energy conversion and storage. The as-prepared product exhibited outstanding water splitting performance (eta 10 = 160 mV for hydrogen evolution reaction and eta 50 = 330 mV for oxygen evolution reaction) and high areal specific capacitance (2.24 F cm-2 at 10 mA cm-2). Furthermore, a new viewpoint explaining the coexistence of three functions (oxygen evolution reaction, hydrogen evolution reaction, and capacitive performance) in chestnut-like CoZn-LDH was proposed based on electrochemical measurements. Overall, this work sheds light on the construction of multifunctional materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemical Research Methods
Xinying Xie, Yisu Wang, Sin-Yung Siu, Chiu-Wing Chan, Yujiao Zhu, Xuming Zhang, Jun Ge, Kangning Ren
Summary: Microfluidics offers a unique physical environment by constraining fluids into a sub-millimeter scale, leading to enhanced surface effects and features such as laminar flow, short diffusion distance, and enhanced heat exchange. In the past two decades, microfluidic technologies have rapidly advanced in various fields, and now, they are being used to synthesize novel functional materials, such as particles with controlled size distribution, structured hybrid materials, and particles with new structures. Microfluidics also enables faster reactions, new reaction routes, and more effective control over reactions. The future development trends in this field are also discussed.
Article
Chemistry, Multidisciplinary
Yoonseo Nah, Dohyub Jang, Dong Ha Kim
Summary: A distinct method utilizing block copolymer micelles as scaffolds for the production of organic-inorganic hybrid perovskite (OIHP) nanostructures was reported. Various nanostructures can be obtained by controlling parameters related to micelle disassembly. The strategy has potential applications in fabricating diverse nanostructures for specific target-oriented purposes.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Huiwen Huang, Dongmei Xu, Wenyang Fan, Qiang Zhang, Chunyi Li
Summary: The ZnSAPO-34 zeolite was prepared using an in-situ synthetic route with ZnO as the zinc source, and its catalytic properties in MTO reaction were compared with SAPO-34 and Zn/SAPO-34 zeolites. The evaluation results showed that both ZnSAPO-34 and Zn/SAPO-34 zeolites exhibit high selectivity for ethene production from methanol.
Article
Biochemistry & Molecular Biology
Yueteng Zhang, Peng Ji, Xiang Meng, Feng Gao, Fanxun Zeng, Wei Wang
Summary: A simple arylamine-catalyzed Mannich-cyclization cascade reaction was developed for facile synthesis of substituted 2H-benzo[h]chromenes, which involved the efficient generation of ortho-quinone methides (o-QMs) catalyzed by a simple aniline. The mild reaction conditions allowed for a broad spectrum of 1- and 2-naphthols and trans-cinnamaldehydes to engage in the cascade sequence with high efficiency.
Article
Chemistry, Physical
D. P. Mali, R. T. Patil, A. S. Patil, V. J. Fulari
Summary: In this study, NiO nanoflakes were successfully synthesized using the hydrothermal method, and it was found that increasing urea concentration in the Ni precursor caused morphological distortion of the nanoflakes and affected their electrochemical properties.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
W. W. Guan, X. Y. Shi, T. T. Xu, K. Wan, B. W. Zhang, W. Liu, H. L. Su, Z. Q. Zou, Y. W. Du
Summary: An organic/inorganic composite coating method based on silane, silicon oil, and tetraethyl orthosilicate was developed to prepare Fe-Si-Al soft magnetic composites (SMCs) in this study. The effects of insulation content on the material properties were studied, and the underlying physical mechanisms were clarified. Results showed that increasing insulation content reduced effective permeability and eddy current loss, but increased DC-bias performance and hysteresis loss.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Nanoscience & Nanotechnology
Jean Pierre Mwizerwa, Qiang Zhang, Fudong Han, Hongli Wan, Liangting Cai, Chunsheng Wang, Xiayin Yao
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Nanoscience & Nanotechnology
Jie Yue, Yonglin Huang, Sufu Liu, Ji Chen, Fudong Han, Chunsheng Wang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Review
Chemistry, Multidisciplinary
Jinghua Wu, Sufu Liu, Fudong Han, Xiayin Yao, Chunsheng Wang
Summary: All-solid-state lithium batteries (ASSLBs) are considered the next generation electrochemical energy storage devices due to their high safety and energy density, along with simple packaging and wide operable temperature range. The sulfide electrolytes, with the highest ionic conductivity among solid-state electrolytes, face challenges such as narrow electrochemical stability window, unstable electrode/electrolyte interfaces, and lithium dendrite formation. Research on emerging sulfide electrolytes and preparation methods is ongoing, focusing on achieving required properties for stable electrochemical performance and compatible interfaces in ASSLBs.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Rishabh Jain, Yifei Yuan, Yashpal Singh, Swastik Basu, Dawei Wang, Aijun Yang, Xiaohua Wang, Mingzhe Rong, Ho Jin Lee, David Frey, Rajan Khadka, Prateek Hundekar, Sang Ouk Kim, Fudong Han, Lin-Wang Wang, David Mitlin, Reza Shahbazian-Yassar, Nikhil Koratkar
Summary: This study investigates the alloying response between alkali metals and few-layer tellurene, revealing the formation of A(2)Te alloys. While the crystalline order of the alloyed products varies, it is surprising that tellurene can retain its crystallinity especially when reacting with lithium. Furthermore, the isotropic lithium transport in tellurene enables it to exhibit stable volumetric capacity, making it a promising alternative to conventional graphite anodes in lithium-ion batteries.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Xiaoming Liu, Regina Garcia-Mendez, Andrew R. Lupini, Yongqiang Cheng, Zachary D. Hood, Fudong Han, Asma Sharafi, Juan Carlos Idrobo, Nancy J. Dudney, Chunsheng Wang, Cheng Ma, Jeff Sakamoto, Miaofang Chi
Summary: Solid electrolytes show promise for Li metal anodes, but Li infiltration along grain boundaries can lead to battery failure due to its association with local electronic band structure. Optimization of grain-boundary electronic conductivity is crucial for future solid-state battery design.
Article
Chemistry, Physical
Qing Wang, Ziyu Song, Fu Han, Bo Xu, Baocai Xu
Summary: Amino acid surfactants are a type of surfactants with ultra-mildness and certain antibacterial ability, which have the potential for wider applications. Two amino acid surfactants, SLG and SLA, containing dicarboxyl group, were successfully prepared and characterized. The results showed that these surfactants exhibited pH-dependent protonation-deprotonation behavior and had better surface activity, foam stability, and emulsifying properties at specific pH values. SLA demonstrated excellent surface activity, foam, and emulsifying properties compared to SLG.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Review
Chemistry, Physical
Yonglin Huang, Bowen Shao, Fudong Han
Summary: This mini-review provides a current opinion on the interfacial challenges in solid-state batteries (SSBs), focusing on the effects of mechanical, chemical, and electrochemical instability, as well as space charge layer formation, on the interfacial resistance. The exact contribution of each effect to the overall interfacial resistance is difficult to quantify, but determining the dominant source is crucial for future development of SSBs.
CURRENT OPINION IN ELECTROCHEMISTRY
(2022)
Review
Nanoscience & Nanotechnology
Rishabh Jain, Aniruddha Singh Lakhnot, Kevin Bhimani, Shyam Sharma, Varad Mahajani, Reena A. Panchal, Mithil Kamble, Fudong Han, Chunsheng Wang, Nikhil Koratkar
Summary: This Perspective compares the attributes of nanoparticles and microparticles as the active electrode material in lithium-ion batteries. It suggests that the future of battery design lies in microscale particles with built-in nanoscale features. The article discusses why the battery industry is unlikely to replace microstructures with nanometre-sized analogues and argues for the use of multiscale particles to develop battery electrodes that combine micro and nano performance attributes.
NATURE REVIEWS MATERIALS
(2022)
Correction
Nanoscience & Nanotechnology
Rishabh Jain, Aniruddha Singh Lakhnot, Kevin Bhimani, Shyam Sharma, Varad Mahajani, Reena A. Panchal, Mithil Kamble, Fudong Han, Chunsheng Wang, Nikhil Koratkar
NATURE REVIEWS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bowen Shao, Sha Tan, Yonglin Huang, Lifu Zhang, Jian Shi, Xiao-Qing Yang, Enyuan Hu, Fudong Han
Summary: This study overcomes the challenges of first cycle electrochemical irreversibility and cycling instability of iron fluoride cathodes by using halide-based solid electrolytes (SEs), demonstrating improved electrode performance.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Dong Zhao, Michael T. Benson, Kun Yang, Yonglin Huang, Fidelma G. Di Lemma, Bowen Gong, Fudong Han, Jie Lian
Summary: Metallic uranium is a crucial fuel form for sodium cooled fast reactors and future nuclear energy systems. Understanding the behavior and kinetics of fuel under equilibrium and non-equilibrium conditions is essential for evaluating its performance. This study investigates the grain growth kinetics and mechanisms of pure gamma phase uranium, and the results show different relationships between grain growth and time for submicron-sized and nano-sized samples. The obtained mechanistic understanding and critical data can be used to evaluate fuel behavior and develop accurate models to predict fuel performance under thermodynamic equilibrium conditions.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Physical
Bowen Shao, Yonglin Huang, Fudong Han
Summary: While efforts are focused on improving the ionic conductivity of lithium solid electrolytes (SEs), the electronic conductivity, which plays a crucial role in solid-state batteries (SSBs), is not extensively studied. This study reports the electronic conductivities of three representative SEs and reveals that conventional measurements tend to overestimate them. Anodic decomposition of SEs is identified as the key reason for this overestimation. Modifications in electrode selection and data interpretation are proposed to obtain the intrinsic electronic conductivity of SEs. The need for a careful study of electronic transport in lithium SEs is emphasized.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Bowen Shao, Ratnottam Das, Yonglin Huang, Ruihao Deng, Sara Seelman, Fudong Han
Summary: Using synchrotron X-ray total scattering combined with pair distribution function (PDF) analysis, we investigated the structural evolution during annealing of the solution-processed precursor for the synthesis of Li7P3S11 solid electrolytes. The results showed that the formation of Li7P3S11 glass-ceramic starts at 230°C. Increasing the annealing temperature improves the crystallinity, but it remains lower than 70.3%. PDF analysis also revealed the presence of acetonitrile used in the solution-based synthesis in the solid electrolytes after high-temperature annealing. These findings provide insights into the synthesis-property relationship and suggest approaches for large-scale synthesis of superior Li7P3S11 solid electrolytes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Yonglin Huang, Bowen Shao, Yan Wang, Fudong Han
Summary: Silicon is considered an important anode material for solid-state batteries due to its unique properties in addressing challenges associated with Li metal anodes. However, the initial Coulombic efficiency (ICE) has not been well considered. In this study, the researchers investigated the electrochemical stability between Si and three representative solid electrolytes (SEs). They found that a hydride-based SE (3LiBH(4)-LiI, LBHI) demonstrated superior stability with Si anodes, enabling a high-performance solid-state Si anode with a record high ICE of 96.2%. The research provides valuable insights for developing high-performance Si anodes for practical applications.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Yonglin Huang, Bowen Shao, Fudong Han
Summary: The utilization of Li alloy anodes in solid-state batteries has gained attention due to their high capacity and improved interfacial stability. This study evaluates the dendrite suppression capability of common Li alloys and finds that Li-Al alloy exhibits the highest capability. This finding suggests that Li-Al alloy has potential as a promising anode for high-rate and high-capacity solid-state batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
