Article
Materials Science, Ceramics
Ryan D. Dempsey, Xiaoqing He, Jonathan A. Scott, David W. Lipke
Summary: A powder-based bottom-up processing scheme is used to produce ceramic nanocomposites, involving internal displacement reactions between solid solution powders and metallic reactants. This scheme is demonstrated for the production of titanium carbide nanocomposites with tungsten inclusions. The process involves heat treatment of mixed carbide powders followed by spark plasma sintering, and the resulting microstructures of the nanocomposites closely resemble the building blocks.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Keke Yuan, Daoyang Han, Junfang Liang, Wanyu Zhao, Mingliang Li, Biao Zhao, Wen Liu, Hongxia Lu, Hailong Wang, Hongliang Xu, Gang Shao, Rui Zhang
Summary: SiCnw/SiCNO composite aerogels with excellent EMA performance were successfully fabricated by regulating morphology and phase composition through microwave treatment temperature variation. The superior EMA performance is mainly attributed to improved impedance matching, multi-reflection, multi-interfacial polarization, and micro current caused by migration of hopping electrons.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Ceramics
Debao Liu, Baolu Shi, Chenqi Wang, Zeshuai Li, Xianbo Wang, Baosheng Xu, Lijie Qu
Summary: In this study, SiC ceramic aerogels with in-situ growth of SiC nanowires were successfully synthesized using the PDCs method. The morphology, microstructure, and phase composition of the samples were investigated using various techniques. The results revealed the diameter and length of the SiC nanowires, and the formation mechanism was systematically studied. This method can also be applied to synthesize other Si-based porous ceramic aerogels with nanowires.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xiaochuan Chong, Guoqing Xiao, Donghai Ding, Jiyuan Luo, Xin Zheng
Summary: The SiC/Al2O3 composite powders with SiC nanowires were successfully synthesized using a one-step combustion synthesis method, with ferrocene as the catalyst. The study investigated the effects of ferrocene on the combustion process and product characteristics, finding that optimal catalyst content led to high combustion temperature, minimal residual silicon, and high nanowire content and aspect ratio. Additionally, two growth mechanism models for SiC nanowires, VS and VLS, were validated in the study.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Chao Wang, Xu Wang, Binglei Wang, Guozheng Xiao, Ruiqing Qiao, Fan Zhang, Yu Bai, Yizhuo Li, Yusheng Wu, Zhanjie Wang, Hongjie Wang
Summary: A dense beta-Si3N4 coating toughened by beta-Si3N4 nanowires/nanobelts was prepared using a combined technique of chemical vapor deposition and reactive melt infiltration to improve thermal shock resistance. The coating exhibited high fracture toughness and maintained high residual strength ratio after thermal cycling, showing potential for applications in extreme high temperature environments.
CERAMICS INTERNATIONAL
(2021)
Article
Thermodynamics
Chao Ma, Xinyao Zou, Ang Li, Haozhen Li, Stelios Rigopoulos, Lei Zhu, Zhen Huang
Summary: An experimental study using a co-flow premixed flat flame was conducted to form MoO3 nanobelts and nanoplatelets in the gas phase. The precursor temperature significantly impacts the morphology, with nanobelts growing along a specific direction influenced by particle attachment, while nanoplatelets are mainly characterized by vapor surface deposition and particle coalescence for final morphology formation.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Materials Science, Multidisciplinary
Guangyuan Wang, Xianquan Meng
Summary: This article reports a high-performance ZnS-based UV photodetector with novel nanoparticle-anchored silver nanowires networks as enhanced platform. Benefiting from the plasmonic gap effects in the NP-NW junctions, the fabricated photodetector demonstrates fast response speed, high responsivity, and excellent detectivity. The strategy presented in this work may provide guidance for designing high-performance optoelectronic devices.
Article
Materials Science, Ceramics
Yaseen K. R. Shariff, Harish K. Choudhary, Vijay Khopkar, Ankit Yadav, R. Madhusudhana, Balaram Sahoo
Summary: This study reports the synthesis mechanism of Ba-Sr hexaferrite ceramic powders, revealing different phase evolution under various annealing conditions associated with the ionic radii difference, leading to the presence of multiple phases. The growth of hexagonal-shaped particles with varied sizes suggests the influence of ionic radii difference on the sinterability of the samples. The research provides a better understanding of the synthesis mechanism of Ba-Sr hexaferrite samples.
CERAMICS INTERNATIONAL
(2021)
Article
Polymer Science
Aida Fadakar Sarkandi, Majid Montazer, Tina Harifi, Mahnaz Mahmoudi Rad
Summary: In this study, an innovative in situ green strategy using green tea as a substrate for the fermentation of Acetobacter xylinum bacteria and a reducing agent for the in situ synthesis of silver nanoparticles was applied to prepare bacterial cellulose/silver nanocomposites. Characterization tests including FESEM, XRD, UV-vis spectroscopy, etc. showed excellent antibacterial activities of the prepared bio-cellulose/silver nanocomposites, making them potential candidates for future wound healing applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Shiqing Ma, Junqing Ma, Zhigang Yang, Yubo Gong, Kaili Li, Gang Yu, Zhengwei Xue
Summary: The study successfully synthesized single-phase high-entropy metal carbonitride (HECN) powders with a single-crystalline structure and high compositional uniformity, and the grain size increased with temperature. This work represents the first report of preparing high-entropy metal carbonitride powders using metal oxides and carbon as raw materials.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Xintao Zhang, Jingjun Xu, Yuhai Qian, Jun Zuo, Zhongwei Zhang, Meishuan Li
Summary: Hafnium carbonitride (HfCxN1-x) powders were successfully synthesized from a mixture of Hf, C, and HfN powders. The properties of the powders, such as particle size, phase composition, and crystal structure, were analyzed using various techniques. The synthesized powders had a single crystalline structure and high purity.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Environmental Sciences
Kyungki Beak, Moonhee Choi, Dong Hyun Kim, Yiseul Yu, Jayaraman Theerthagiri, Amal M. Al-Mohaimeed, Yangdo Kim, Hyeon Jin Jung, Myong Yong Choi
Summary: The use of silane coupling agents in surface treatment enhanced the dielectric properties of multilayer ceramic capacitors and increased surface gloss. Specifically, the dielectric constant of the TMSPA-treated ceramic powder sintered at 1200 degrees C increased from 881 to 2382, while the dielectric loss decreased from 1.96% to 1.34%. The TMSPA treatment significantly improved the physical and dielectric properties of the multilayer ceramic sheet.
Article
Automation & Control Systems
Yunze Li, Dongzhe Zhang, Bo Zhao, Weilong Cong
Summary: Inconel 718 is widely used in aerospace, nuclear, and marine industries due to its excellent high-temperature mechanical properties and corrosion resistance. Laser-directed energy deposition (DED) is a competitive method for fabricating Inconel 718 coatings, offering advantages such as fine-grained structures, strong metallurgical bonding, and high density. Ceramic reinforced Inconel 718 coatings have been investigated to improve hardness and wear resistance, with B4C as a preferable additive material. However, there are currently no investigations on the in situ synthesis mechanisms, microstructure, and mechanical properties of laser DED fabricated B4C-Inconel 718 coatings. This study explores the effects of B4C on the properties of Inconel 718 coatings, with improvements observed in hardness and wear resistance.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Electrochemistry
Malothu Usha Rani, Vangapally Naresh, Devarakonda Damodar, Sadananda Muduli, Surendra Kumar Martha, Atul Suresh Deshpande
Summary: A supercapacitor based on SnO2@C composite electrode with better electrochemical performance, good cyclic stability and high specific capacitance is reported in this study.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Yi Li, Wenting Chen, Zhiwei Liu, Dehua Cao, Yu Chen, Kunyapat Thummavichai, Nannan Wang, Yanqiu Zhu
Summary: This study successfully modified a novel cow dung based activated carbon (CDAC) with W18O49 nanowires as a photocatalyst. The CDAC/W18O49 nanowire composite showed significant improvement in the photocatalytic degradation of methylene blue (MB) under full-spectrum light illumination, indicating its potential application in dye wastewater treatment technologies.
Article
Chemistry, Physical
Yu Ma, Ding Chen, Dongdong Zhang, Hao Yu, Yapeng Zheng, Weijun Li, Lin Wang, Qiao Liu, Weiyou Yang
Summary: A freestanding air cathode catalyst with exceptional catalytic bifunctions for both ORR and OER has been prepared using a facile and scalable method, showing superior performance compared to single Fe- or N-modulated counterparts and comparable to state-of-the-art Pt/C + RuO2 catalyst. This material exhibits potential applications in advanced energy conversion systems, with higher peak power density, specific capacity, and cycle stability than traditional Pt/C + RuO2-based devices.
Article
Engineering, Environmental
Zizai Ma, Kai Song, Tian Zhang, Bin Tang, Gang Shao, Huilin Hou, Weiyou Yang
Summary: The study demonstrates the controlled growth of MXenes-like WO3 architecture in transition metal oxides by modulating the formation process based on the competition between concentrations of WO42- and anions (NO3-, Cl-) in the solution. The multilayer WO3 structure shows superior physical performance, with a remarkable photocurrent density of 2.3 mA cm(-2) under AM 1.5G illumination, the highest reported for WO3 photoanodes without cocatalysts/dopants in neutral solution.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Wenxiang Yang, Guozhi Ma, Yin Fu, Ke Peng, Hongli Yang, Xiaoqiang Zhan, Weiyou Yang, Lin Wang, Huilin Hou
Summary: The construction of Ti3C2 MXene@TiO2/CuInS2 heterojunction photocatalysts by a two-step hydrothermal process enhances the photocatalytic hydrogen generation activity. The synergistic effects of the hybrid photocatalysts result in improved visible-light harvesting, charge transfer, and active site for H-2 evolution, demonstrating their potential applications in this field.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Ruiying Wang, Weijun Li, Lan Jiang, Qiao Liu, Lin Wang, Bin Tang, Weiyou Yang
Summary: This study reports the exploration of electrodes based on hierarchical SiC@polyaniline (SiC@PANI) core/shell nanowire arrays, which exhibit high specific capacitance, good rate performance, and high stability. The excellent electrochemical performance of the electrode is mainly attributed to the rational design and the combination of advantages from SiC and PANI.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Yapeng Zheng, Zhi Fang, Qian Sun, Enhui Wang, Minghui Shang, Weiyou Yang, Xinmei Hou
Summary: The wettability mechanism between high-temperature ceramics (HTCs) and molten TiAl alloys is systematically investigated by molecular dynamics simulations. The results reveal that wettability is related to the electronegativity of metal elements and the Ti content of TiAl alloys.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Ceramics
Zhenyu Zhu, Zihan Sun, Shudong Zhou, Shang Xu, Xiaoxiao Li, Weijun Li, Lin Wang, Weiyou Yang, Fengmei Gao, Shanliang Chen
Summary: The novel high-performance integrated field emission cathode based on well-aligned SiC nanocone arrays achieved low E-to and stable electron emission. Its single-crystalline integrated architecture helps resist Joule heat and electrostatic forces, resulting in superior stability and performance for promising applications in harsh working conditions.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Qian Sun, Zhi Fang, Yapeng Zheng, Zuobao Yang, Feng Hu, Yang Yang, Weiyou Yang, Xinmei Hou, Ming-Hui Shang
Summary: The development of nontoxic lead-free CsSnI3 perovskites has been hindered by their intrinsic deficiencies. However, the theoretical design of quasi-2D Dion-Jacobson (DJ) CsSnI3 perovskites intercalated with pi-conjugated 2,5-thiophenedimethylammonium (ThDMA) has shown enhanced phase stability and tunable bandgap through dimensional engineering. These findings provide valuable insights for exploring environmentally friendly CsSnI3 perovskites and their applications in opto/electronic devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Engineering, Environmental
Xianlu Lu, Dongdong Zhang, Jiang Zhong, Lin Wang, Lan Jiang, Qiao Liu, Gang Shao, Dingfa Fu, Jie Teng, Weiyou Yang
Summary: Potassium-ion batteries (PIBs) are a promising modern energy storage device with high energy density and commercial application potential. However, their cycle stability under high-temperature conditions is a major challenge. In this study, we successfully developed high-temperature PIBs with ultrahigh stability by using metal organic framework-5 (MOF-5) as the anode material.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Xiaoqiang Zhan, Yapeng Zheng, Bing Li, Zhi Fang, Hongli Yang, Haitao Zhang, Leyao Xu, Gang Shao, Huilin Hou, Weiyou Yang
Summary: In this study, a rational design approach was adopted to construct Ta3N5/ZnIn2S4 1D/2D heterojunctions, which exhibited enhanced light absorptivity, improved charge separation and transfer, as well as abundant active sites for hydrogen evolution reaction. Under visible-light irradiation, the resulting Ta3N5/ZnIn2S4 heterojunctions showed a significantly higher H-2-production rate compared to pure Ta3N5 nanorods and ZnIn2S4 nanosheets, surpassing the reported Ta3N5-based photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Wei Chen, Shaoqing Yang, Huatao Wang, Ketong Yang, Xulei Wu, Feng Gao, Bojun Zheng, Kun Qian, Wang Yao, Tao Zhang, Bo Zhong, Xiaoxiao Huang
Summary: In this study, a wearable heater based on flexible graphite nanoplates and polyurethane was developed with good flexibility and waterproof ability. The fabricated heater can withstand repeated bending and immersion in water, and has rapid heating and cooling capabilities. It is suitable for wearable electronic products.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Qing Shi, Hantao Liu, Junfei Liang, Yaohui Zhang, Yaqian Dong, Weiyou Yang, Qiao Liu
Summary: In this work, a one-pot strategy was developed to fabricate NiFe layered double hydroxide nanosheets interconnected by carbon nanofibers, which exhibited enhanced oxygen evolution reaction (OER) catalytic activity and stability. The catalyst showed great potential for cost-efficient water splitting devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Ceramics
Nanchuan Wang, Shibo Guo, Qiaochu Chen, Fengmei Gao, Weiyou Yang, Hui Fu, Jinju Zheng
Summary: The study synthesized a series of Mn2+-doped CsPbCl3 samples with different OAm-Cl contents, finding that the Mn2+ concentration was fixed at 0.65% in the samples and the Mn2+ photoluminescence exhibited an OAm-Cl content-independent lifetime. The excitonic and Mn2+ PL intensities of the NCs were strongly related to the amount of OAm-Cl, with different trends depending on the OAm-Cl content.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Engineering, Environmental
Yaqian Dong, Zhi Fang, Deliu Ou, Qing Shi, Yu Ma, Weiyou Yang, Bin Tang, Qiao Liu
Summary: In this study, we demonstrated the rational preparation of S-modified Fe-N-C nanosheet catalysts with hierarchical porous architecture, large specific surface area, and controlled S doping. The catalysts showed outstanding oxygen reduction reaction activity, with lower potential, higher diffusion-limited current density, and excellent stability compared to commercial Pt/C and advanced pH-universal ORR catalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xiaoxiao Li, Jianjun Chen, Shanliang Chen, Weijun Li, Jiahao Yang, Feng Hu, Qiliang Wei, Xinsheng Zhao, Xinfeng Zhang, Weiyou Yang
Summary: This study presents a rationally designed editable and flexible electrode composed of SiC nanowires and carbon nanotubes, which offers excellent mechanical and electrochemical properties for reliable energy storage devices that can operate under wide-temperature harsh conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Correction
Multidisciplinary Sciences
Xianlu Lu, Xuenan Pan, Dongdong Zhang, Zhi Fang, Shang Xu, Yu Ma, Qiao Liu, Gang Shao, Dingfa Fu, Jie Teng, Weiyou Yang
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(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)
