Article
Materials Science, Ceramics
Qingquan Hou, Bin Yang, Chao Ma, Zhiyong Zhou, Ruihong Liang, Hao Li, Xianlin Dong
Summary: This study investigates the effect of W6+ doping on the crystal structure, microscopic morphology, and electrical properties of calcium bismuth niobate ceramics. It was found that appropriate W6+ doping can enhance the piezoelectric and thermal depoling properties of the material, providing a feasible approach to improve its potential applications in high temperature piezoelectric vibration sensors.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Axiang Chen, Zhenning Chen, Yang Liu, Peng Zheng, Wangfeng Bai, Lili Li, Fei Wen, Liang Zheng, Yang Zhang
Summary: By incorporating W/Cu into CBN-based ceramics, the crystal structure is altered, leading to enhanced piezoelectricity and resistivity. The ceramic with the composition CaBi2Nb1.96(W3/4Cu1/4)(0.04)O-9 exhibits excellent performance with high d(33) and T-C values.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2021)
Article
Chemistry, Physical
Hepeng Wang, Chao Chen, Xiangping Jiang, Xiaokun Huang, Xin Nie, Liwei Huang, Xing Yu
Summary: This article reports the significantly improved piezoelectric and ferroelectric properties of Cu/W co-doped Ca2Bi2Nb2-x(Cu1/4W3/4)(x)O-9 high Curie temperature lead-free piezoelectric ceramics. The Cu/W co-doped CBN ceramics show good comprehensive performance in high-temperature stability and properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Zhihang Peng, Li Chen, Yang Xiang, Feng Cao
Summary: Calcium bismuth niobate (CBN) doped with lanthanide ions was prepared using solid-state sintering method. The effects of different lanthanide dopants on the crystal structure, microstructure, and high-temperature electrical properties of CBN ceramics were studied. It was found that Ce3+/Ce4+ doping resulted in anomalous electrical properties, which were attributed to the extrinsic oxygen vacancies induced by Ce doping.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Ceramics
Jian Guo, Hongwei Cheng, Binbin Tong, Jianyin Lin, Hongbo Liu, Jinrong Cheng, Jianguo Chen
Summary: The electrical properties of 0.70BF-0.30BT ceramics initially increase and then slightly decrease with grain size, with the best performance observed in ceramics with a grain size of 5.0 μm.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Juan-Nan Chen, Qian Wang, Xian Zhao, Chun-Ming Wang
Summary: Significantly enhanced dc electrical resistivity and piezoelectric properties of bismuth layer-structured ferroelectric calcium bismuth niobate (CBN) were achieved through compositional adjustment with rare-earth element Tb ions. The Tb-modified CBN exhibited a high dc electrical resistivity and enhanced piezoelectric properties, making it a promising material for high-temperature piezoelectric applications.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Juan-Nan Chen, Connie Kang, Rui-Min Hou, Xian Zhao, Chun-Ming Wang
Summary: The study reports the enhanced piezoelectric properties of gadolinium-modified Ca1-xGdxBi2Nb2O9 high Curie temperature polycrystalline ferroelectric ceramics. The optimized CBN-3Gd composition shows significantly improved electrical performance, making it a promising material for high-temperature piezoelectric sensor applications.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
C. B. Pan, G. C. Zhao, S. M. Li, M. F. Shu, J. Wu, J. M. Z. Wang, L. H. Yin, W. H. Song, X. B. Zhu, J. Yang, Y. P. Sun
Summary: In this study, (1-x)CaBi2Nb2O9-xBaZr0.2Ti0.8O3 composite ceramics were prepared by conventional solid-state sintering, and it was found that the introduction of BaZr0.2Ti0.8O3 increased the permittivity and reduced the dielectric loss of the material. The x = 0.01 sample exhibited the optimum electrical properties and the composite materials showed good thermal depoling performance.
CURRENT APPLIED PHYSICS
(2022)
Article
Materials Science, Ceramics
Fei Wang, Xu Li, Qian Xu, Hao Chen, Jingwen Xi, Feifei Zhang, Zhi Tan, Yuan Cheng, Shifa Wang, Jie Xing, Qiang Chen, Jianguo Zhu
Summary: By synergistically utilizing lattice distortion and oxygen vacancy, the electrical and mechanical properties of CBN-based ceramics have been enhanced, providing a new approach for exploring bismuth-layered structure ceramics with excellent electrical and mechanical properties.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
C. B. Pan, G. C. Zhao, S. M. Li, X. L. Wang, M. Tao, L. H. Yin, W. H. Song, X. B. Zhu, J. Yang, Y. P. Sun
Summary: By adding CuO sintering aid, excellent electrical properties including piezoelectric response, remanent polarization, and high-temperature ferroelectric Curie point can be achieved in CaBi2Nb2O9 ceramics synthesized through the conventional solid-state technique. The adjustment of microstructural and domain configuration further enhances the electrical properties of CaBi2Nb2O9, making this simple textured approach suitable for the development of high-performance and high-temperature piezoelectric ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Nanoscience & Nanotechnology
Qiangwei Kou, Bin Yang, Haobin Lei, Shuai Yang, Zerui Zhang, Linjing Liu, Hang Xie, Yuan Sun, Yunfei Chang, Fei Li
Summary: Lead-free ceramics with superior piezoelectric performance are synthesized by a synergistic design strategy of integrating crystallographic texture, multiphase coexistence, and doping engineering, without sacrificing the Curie temperature. This work provides important guidelines for developing novel ceramics with outstanding piezoelectric properties and can largely expand application fields of textured BaTiO3-based ceramics into high-performance and multilayer electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Jianzhou Du, Cong Yang, Yunping Li, Jingyi Yan, Long Qiu, Luming Wang, Kongjun Zhu
Summary: In this study, xPZN-PZT ternary piezoelectric ceramics with different PZN content were prepared using the solid-state reaction method. The effect of PZN content on the phase structure, dielectric, piezoelectric, and ferroelectric properties of the ceramics was investigated. The results showed that the increase in PZN content led to a slight increase in grain size. The 0.2PZN-PZT ceramic samples exhibited optimum properties at a high Curie temperature, indicating a balance between the Curie temperature and piezoelectric properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Ceramics
Haowen Liu, Ateer Bao, Jun Zhang, Yaohang Gu, Xiaoyan Zhang, Xiwei Qi
Summary: A new kind of high-entropy rare earth garnet ceramics was successfully synthesized by solid state reaction. The increase of Al content leads to the decrease of relative dielectric constant and the increase of dielectric loss. The activation energies of grain boundary and grain electrical conductivities indicate that the difference between them enhances the dielectric properties. These findings provide important insights for the study of colossal dielectric materials.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Yongqi Pan, Longfei Huang, Jie Feng, Xinyu Yu, Zunping Xu, Yi Chen
Summary: A study was conducted on the grain growth behavior of (K, Na)NbO3-based ceramics, revealing three stages of grain growth with increasing sintering temperature. The effect of this behavior on piezoelectric properties was also investigated.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Yunjing Shi, Xiaoyu Dong, Bo Shen, Jiwei Zhai
Summary: In this study, the piezoelectric properties of 0.7BFBT-T were enhanced through quenching. A suitable quenching temperature increased the content of the rhombohedral phase, leading to a highly distorted structure and magnification of the dipole moment, which was beneficial for enhancement of the polarity. Furthermore, quenching inhibited oxygen vacancies and increased the size and orderliness of domains, reducing the pinning effect.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Ceramics
Ling Zhang, Jingyin Huang, Yu He, Kaige Liu, Bingxi Xiang, Jianpang Zhai, Ling Bing Kong, Tianshu Zhang, Yin Liu
Summary: Ceramic slurries with varying Al2O3 contents were used to fabricate alumina ceramic parts with promising surface morphology using digital light processing photopolymerization-based additive manufacturing technology. Factors influencing curing depth were studied, with effects of powder content on green bodies' shrinkage, microstructure, density, and hardness evaluated. Despite decreasing curing depth with increasing Al2O3 content, all slurries were well cured with a set exposure time.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Ling Zhang, Jingyin Huang, Zhuohao Xiao, Yu He, Kaige Liu, Bin He, Bingxi Xiang, Jianpang Zhai, Lingbing Kong
Summary: This study investigates the debinding and sintering process of alumina green bodies shaped with digital light processing technology. The effects of debinding atmosphere and heating rate on the microstructure and densification of the bodies are evaluated. The results suggest that low-rate vacuum debinding is a promising approach for ceramics shaped with photopolymerization-based additive manufacturing technology.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Zhenying Liu, Chongmei Wu, Nan Xie, Jinbo Zhu, Yin Liu, Shouwu Huang, Xiulin Shen, Zhongde Yang, Xin Lin, Lingbing Kong
Summary: Needle-like nanocrystalline mullite powders were synthesized at 900 degrees C using coal gangue as raw material through the molten salt process. The mullite-based composite ceramics showed improved density and strength with increasing sintering temperature, reaching maximum values at 1560 degrees C for 3 hours.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Yang Fan, Ximing Zhang, Jingyu Wang, Yin Liu, Atian Xie, Huayong Chen, Ling Bing Kong
Summary: In this study, coal-derived composites were prepared using anthracite as a matrix material and an in-situ reaction process. Graphene was observed in the samples, and the microwave absorption performance of the materials can be effectively tuned by varying the reaction conditions.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yan Wang, Guiyang Xian, Chongmei Wu, Zhaolin Zhu, Yin Liu, Zhenying Liu, Ling Bing Kong
Summary: An in-situ carbonization process was used to prepare nitrogen-doped Fe@C composites for electromagnetic wave absorption, introducing multiple absorption mechanisms including dipole polarization and multiple interface reflection. By adjusting the ratio of the components, the absorption performance of the final composites can be optimized.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Physical
Ubaid Khan, Yijia Luo, Ling Bing Kong, Wenxiu Que
Summary: MXenes, 2D materials dominated by carbides and nitrides, can be tailored for various applications by tuning surface chemistry. In this study, fluorine-free Ti3C2 MXenes with halogen terminals were synthesized using a molten salts synthesis method, exhibiting exceptional supercapacitive performances as electrodes in aqueous electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jialin Ma, Hengdong Ren, Ximing Zhang, Zhenying Liu, Sheng Wang, Wei Lian, Chang Li, Yin Liu, Ling Bing Kong
Summary: Two-dimensional materials formed by self-assembly of transition metal sulfides (TMDs) have potential applications for microwave absorption. This paper demonstrated a new and simple strategy for preparing CoS2-MoS2 sulfide binary composites with a heterogeneous nanoflower structure through a self-assembly hydrothermal reaction process. PVP was used as a surfactant to enhance interfacial polarization and create a unique multilayer rose-like structure. The microwave absorption performance of the samples was calculated based on the measured electromagnetic parameters using the coaxial method. The samples treated under optimized conditions showed a reflection loss of -71.56 dB at a thickness of 3.62 mm with an effective absorption bandwidth of 2.56 GHz.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Zhenying Liu, Chongmei Wu, Kai Wang, Yan Wang, Guiyang Xian, Zhaolin Zhu, Yin Liu, Ling Bing Kong
Summary: Two-dimensional layered Ti3C2Tx is a potential candidate for electromagnetic wave absorption due to its large specific surface area and functional groups. However, the impedance mismatch caused by high conductivity and lack of magnetic loss limits its application. Co/Ti3C2Tx composites were prepared by combining Ti3C2Tx with magnetic Co nanosheets, resulting in optimized electromagnetic wave absorption performance.
ACS APPLIED NANO MATERIALS
(2023)
Review
Engineering, Electrical & Electronic
Chenggang Tang, Yuqiang Wang, Yuning Li, Simei Zeng, Lingbing Kong, Linan Li, Jingye Sun, Mingqiang Zhu, Tao Deng
Summary: Temperature sensors convert physical quantities into electrical quantities using temperature-dependent properties. Graphene-based MEMS temperature sensors have advantages in miniaturization and integration. This paper introduces the development history and recent research status of graphene-based temperature sensors, analyzes their performance and current applications in different fields, and proposes future development directions for higher-performance graphene temperature sensors.
MICROELECTRONIC ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Jianquan Wan, Haihui Ruan, Zhiyi Ding, Ling Bing Kong
Summary: A new ultra-high strength maraging stainless steel with a unique combination of intermetallic precipitates has been developed, enabling its ultimate tensile strength to reach 3.15 GPa with balanced ductility and uniform elongation. Maximizing the austenite content before cold-rolling and ageing treatments is crucial to achieve such high strength without sacrificing uniform elongation. Precipitation hardening is significantly enhanced by the net-like sigma phase during tensile deformation, peaking at an ageing temperature of 525 degrees C for 3.5 hours.
SCRIPTA MATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
Guiyang Xian, Ximing Zhang, Zhaolin Zhu, Chongmei Wu, Yan Wang, Yongli Meng, Yin Liu, Zhenying Liu, Lingbing Kong
Summary: In this work, zeolitic imidazolate framework-67 (ZIF-67) was synthesized and thermally annealed to form Co/C nanocomposites with desirable porous structures. A layer of rod-shaped polyaniline was coated on the surface of the nanocomposites, which effectively enhanced the electromagnetic properties and impedance matching. The optimal reflection loss and effective absorption bandwidth were achieved at a filling ratio of 50%. This work provides a reference for the composite of MOF-derived nanomaterials and conducting polymers in EMW absorption studies.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yongli Meng, Yin Liu, Chong Yang, Ling Bing Kong
Summary: Nickel ferrite/coal-based carbon (NiFe2O4/CBC) composites were synthesized using microwave irradiation and hydrothermal method. The size, morphology, magnetic, and microwave absorption properties of the composites were studied. The composites showed optimized dielectric and magnetic properties by adjusting the size of the NiFe2O4 particles. The NiFe2O4/CBC composites exhibited significant microwave absorption performance, making them a promising material for microwave absorption applications.
Article
Chemistry, Physical
Shao-Zhong Zeng, Shuxiao Wang, Ling Bing Kong, Yuchao Tian, Bin He, Xiao Yu, Shuzhang Niu, Dongju Fu, Peigang Han
Summary: Traditional inorganic cathode materials face technical bottlenecks due to limited resources and low specific capacity. Organic cathode materials have no resource problem and a large theoretical specific capacity. However, they also have issues in practical applications, such as dissolution and low conductivity. A low-cost organic disulfide polymer with a high theoretical specific capacity of 462 mAh g(-1) is reported. When incorporated with graphene, this polymer exhibits excellent high-rate performance and good cycle stability, making it a promising alternative for energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yan Wang, Guiyang Xian, Chongmei Wu, Zhaolin Zhu, Yin Liu, Zhenying Liu, Ling Bing Kong
Summary: Ni@nitrogen-doped polyaniline-derived carbon composite (NC-n) was prepared using in situ polymerization and pyrolytic reduction for electromagnetic wave (EMW) absorption from 2-18 GHz. Nitrogen doping enhanced interfacial polarization, dipole polarization, and defect polarization through carbonization of polyaniline. Metallic nickel production resulted in eddy current loss and magnetic resonance loss, enabling multiple absorption mechanisms. The impedance matching of NC-n could be optimized by adjusting the composition, reducing surface reflection EMW. A reflection loss of -61.93 dB and effective absorption bandwidth of 5.68 GHz (12.08-17.76 GHz) at a thickness of 1.72 mm were achieved. This strategy can be used as reference for designing high performance composite EMW absorbers.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Chongmei Wu, Zhenying Liu, Ziqing Yuan, Yan Wang, Guiyang Xian, Zhaolin Zhu, Nan Xie, Hanxin Zhang, Yin Liu, Ling Bing Kong
Summary: 3D superstructure Ti3C2Tx/Co3O4 nanochain composites were synthesized through electrostatic self-assembly, demonstrating excellent microwave absorption properties, offering a potential solution for efficient electromagnetic wave absorbing materials.
NEW JOURNAL OF CHEMISTRY
(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)