Article
Chemistry, Inorganic & Nuclear
Ahmad Hussain, Sajid Nawaz, Nawishta Jabeen, Rizwan Zafar, Muhammad Adnan Qaiser, Zeesham Abbas, Fahim Ahmed, Muhammad Usman Khan, Muhammad Waseem, Sehrish Aslam
Summary: By adding MnO2 to the BKNT ceramic, the material's density, remnant polarization, and piezoelectric properties are significantly improved, with higher impedance and stable performance at low temperatures, making it suitable for use in actuators and sensors.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Ch K. Varada Rajulu, S. Ramesh, T. Anil Babu, V Raghavendra, D. Gangadharudu, K. Sambasiva Rao
Summary: The nano-polycrystalline Bi-0.5(Na1-xKx)(0.5)TiO3 ceramic material was successfully synthesized using the solid-state mixed oxide method. Analysis using XRD and SEM revealed the structural and modulus properties of the material, showing significant influence of K+ ion substitution on the ceramic properties and promising performance.
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Akinori Kan, Kentaro Araki, Hirotaka Ogawa
Summary: The piezoelectric properties and crystal structure of Bi0.5-x(Na0.8-yK0.2+y)(0.5)TiO3-3x/2 ceramics were studied, revealing the influence of Bi deficiency and K substitution on the crystal structure. The changes in piezoelectric properties in the phase transition region were also analyzed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Changji Wang, He Huang, Shizhong Wei, Laiqi Zhang, Kunming Pan, Xiaonan Dong, Liujie Xu, Chong Chen, Feng Mao, Cheng Zhang, Zhili Dong
Summary: W-Al2O3 alloy rods were successfully fabricated using the powder metallurgy process and hot swaging. The high-temperature tensile tests showed that the ultimate tensile strength of W-0.25 wt% Al2O3 alloy was 611.1 MPa at 800 degrees C, which was 18% higher than pure W. Microstructure evaluation revealed that pure W underwent dynamic recrystallization at 1000 degrees C, resulting in a sharp decrease in strength, while the microstructure of the W-0.25 wt% Al2O3 alloy contained a large number of sub-grains and low-angle grain boundaries, which did not significantly change in the temperature range of 800-1200 degrees C, and work hardening played a leading role during high-temperature deformation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Nailu Shen, Ningning Chen, Yinshuang Pang, Shenluo Zang, Chi Hu, Zeming Tang, Qingxue Lai, Jing Zheng, Yanyu Liang
Summary: In this study, FeS2 nanoparticles were anchored on N-doped porous carbon to enhance the capacity and cycle stability of potassium-ion batteries. The findings provide a foundation for designing high-performance Fe-based anodes for PIBs.
APPLIED SURFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Hanxing Wan, Xiong Ying Chen, Fenglian Zhang, Jun Chen, Fenglan Chu, Zachary M. Sellers, Feng Xu, Hui Dong
Summary: In mouse models of ulcerative colitis, capsaicin exerts its anti-colitic action by inhibiting intestinal Cl- secretion and promoting Na+ absorption via blocking TRPV4 channels.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Seonhwa Park, Jongmoon Jang, Cheol-Woo Ahn, Byung-Dong Hahn, Woon-Ha Yoon, Jung Woo Lee, Jong-Jin Choi, Yuho Min
Summary: Insights into the mechanical stress and microstructure of piezoelectric materials were necessary, as their properties can be significantly varied depending on these parameters. Constructing heterostructure templates showed promising potential in improving these aspects. In this study, BaTiO3 (BT) templates and elements-doped (K,Na)NbO3 (KNN) matrix powders were used to prepare heterostructure BT (h-BT) templates, which resulted in enhanced piezoelectric constant compared to those of the BT-KNN and nontextured ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Lingfeng Zhu, Ze Zhang, Jindi Luo, Hai Zhang, Yaohui Qu, Zhenyu Yang
Summary: This study presents a self-templated strategy to prepare hollow hierarchical porous olive-like carbon structure, which delivers high reversible discharge capacity in lithium-ion, sodium-ion, and potassium-ion batteries, as well as promising cycling stability over 800 cycles.
Article
Energy & Fuels
Xiangbo Feng, Lianghui Xia, Zeyu Jiang, Mingjiao Tian, Shaoguo Zhang, Chi He
Summary: A series of Mn-Ce binary oxides loaded monolith catalysts were prepared to efficiently destroy toluene pollution. The results showed that the catalyst Mn-4Ce@NaAl2O3@Al exhibited the best performance, decomposing 90% of toluene at 239 degrees C with a higher oxidation rate compared to other catalysts.
Article
Materials Science, Multidisciplinary
Bin Wang, Yucheng Zhou, Dan Yang, Liujie Xu, Xiuqing Li, Shizhong Wei
Summary: A new method is designed to investigate the corrosion behavior of molybdenum alloys in molten zinc, by sealing samples and a certain amount of Zn grains into a quartz tube under vacuum, with the mechanism of action of Al2O3 investigated. The molybdenum alloys annealed at 1200 degrees C exhibit excellent corrosion resistance to liquid zinc. After 40 days of corrosion, the corrosion rate of Mo-2.0 wt%Al2O3 decreased by 47.92% compared with that of pure molybdenum. Al2O3 particles distributing in the matrix and corrosion layer can change the diffusion path of molybdenum and zinc atoms, improving the corrosion resistance of molybdenum alloys.
Article
Materials Science, Multidisciplinary
Lanjie Li, Xindong Wang, Caidong Zhang, Mingliang Lu, Haixu Wang, Heli Wan
Summary: This study investigated the sources of potassium and sodium in vanadium-nitrogen alloys and their impact on furnace structure, revealing that they are mainly present as counter-ions in APV and V2O3, causing strong corrosion due to their enrichment and distribution in VN products.
Article
Chemistry, Multidisciplinary
Eunmi Im, Seonhwa Park, Geon-Tae Hwang, Dong Choon Hyun, Yuho Min, Geon Dae Moon
Summary: A single-crystal-based (K,Na)NbO3 (KNN) microcuboid/CuO nanodot heterostructure with enhanced photo-piezocataytic activity is reported. Compared to polycrystalline KNN powders and bare KNN single-crystals, the single-crystal-based KNN/CuO exhibits higher piezocatalytic degradation activities. The excellent photo-piezocatalytic activity is attributed to the enhanced charge-carrier separation and proper alignment of band structure.
Article
Chemistry, Inorganic & Nuclear
Zhiyuan Wang, Hairu Xiang, Jiawen Zou, Zenghui Mai, Zhenzhen Cao, Mingliang Li, Bingbing Fan, Gang Shao, Hailong Wang, Hongliang Xu, Rui Zhang, Hongxia Lu
Summary: The study investigated the factors affecting the preparation of α-Al2O3 particles by microwave hydrothermal and calcination methods. Results showed that high sphericity and good dispersion of particles can be achieved rapidly at low temperatures. Additionally, high-performance ceramic materials with high thermal conductivity and Vickers hardness were obtained after hot pressing and sintering.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Medicine, Research & Experimental
Xu-Peng Wen, Qi-Quan Wan
Summary: Na+/K+-ATPase is an ancient enzyme essential for maintaining ion homeostasis within cells. Hormones can regulate its activity through multiple pathways, while insulin has been found to upregulate Na+/K+-ATPase abundance to restore transport efficiency, potentially offering new therapeutic targets for related diseases.
EXPERIMENTAL AND THERAPEUTIC MEDICINE
(2021)
Article
Materials Science, Multidisciplinary
Lin Hao, Gang He, Shanshan Jiang, Zhenxiang Dai, Ganhong Zheng, Jinyu Lu, Lesheng Qiao, Jingbiao Cui
Summary: This study achieved the improvement of interface chemistry and transport characteristics of Hf1-xYbxOy/Al2O3/GaSb gate stacks through interface passivation and doping engineering technology. The experimental results show that the gate stack has potential application in future GaSb-based metal-oxide-semiconductor field effect transistor (MOSFET) devices.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(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)