Article
Materials Science, Ceramics
Jun Yuan, Guoshuai Zhao, Shiqi Ren, Yongjin Wu, Fengya Hu, Qingru Wang, Qiang Shi, Bing Yang, Shuhong Li, Dong Zhang
Summary: SrTiO3:Eu3+-ZnTiO3:Mn4+ nanocomposites were successfully synthesized for highly sensitive optical thermometers. The structure of SrTiO3:Eu3+ and ZnTiO3:Mn4+ nanophosphors remained unchanged after heat treatment. The emission intensity of Eu3+ and Mn4+ showed different temperature dependencies.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zhiliang Wang, Xu Chen, Man Luo, Lin Qin
Summary: A series of red-emitting phosphors Ba2CaWO6:xMn(4+) were synthesized and characterized. The phosphors showed potential for applications such as optical thermometers.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Ceramics
Zhaojie Wu, Li Li, Yongjie Wang, Faling Ling, Zhongmin Cao, Sha Jiang, Guotao Xiang, Xianju Zhou, Yongbin Hua, Jae Su Yu
Summary: A dual-mode optical thermometer utilizing a double-perovskite Mn4+/Sm3+ co-doped luminescent material was designed for precise temperature detection. The thermometer achieves accurate temperature measurement and high sensitivity through the fluorescence intensity ratio (FIR) and decay lifetime techniques.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
JunYu Chen, LianJie Li, Tao Pang, Hai Guo, LiPing Chen
Summary: Multi-mode optical thermometry demonstrates great potential in accurate temperature measurement. Through the elaboration of Na2GdMg2V3O12:Sm3+ phosphors, the material with dual-emission centers is successfully achieved. By irradiation of 349 nm light, NGMVO:Sm3+ can generate emissions from VO43- and Sm3+ due to energy transfer between them. The designed fluorescence intensity (FI), fluorescence intensity ratio (FIR), and Commission Internationale de L'Eclairage coordinate modes of NGMVO:Sm3+ thermometer exhibit high relative sensitivities (S-R) up to 2.21 %K-1, 2.12 %K-1, and 0.244 %K-1, respectively. Furthermore, the S-R values of FI and FIR modes decrease slowly with increasing temperature, maintaining above 1.36 %K-1 and 1.08 %K-1, respectively, between 303 and 513 K. These findings highlight the promising applications of NGMVO:Sm3+ phosphors in multimode temperature sensors.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Zutao Fan, Shala Bi, Hyo Jin Seo
Summary: BCBSO: xBi(3+) phosphors with tunable emission spectra and temperature responsiveness were prepared through high-temperature solid-phase synthesis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Guixian Li, Yu Xue, Qinan Mao, Lang Pei, Hong He, Meijiao Liu, Liang Chu, Jiasong Zhong
Summary: Luminescent thermometers provide a non-contact method of probing temperature with high sensitivity and response speed at the nanoscale. By co-doping the highly temperature-sensitive Mn4+ and less-sensitive Eu3+ (or Sm3+) activators into a Ca2GdSbO6 matrix, an effective thermometer is formed.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
J. Y. Chen, J. Q. Chen, L. J. Li, W. N. Zhang, L. P. Chen, H. Guo
Summary: Due to technological advancements, high-precision optical thermometers have gained significant attention from researchers. In this study, Ca3LiZnV3O12:Sm3+ phosphors with two luminescent centers were synthesized and extensively characterized for their structure, luminescent properties, and energy transfer. The thermochromic behavior of the phosphors was observed through different thermal responses in the emission and excitation spectra of VO43- and Sm3+. A four-mode luminescent thermometry based on fluorescence intensity, fluorescence intensity ratio, Commission Internationale de L'Eclairage coordinates, and excitation intensity ratio was designed, demonstrating excellent temperature sensitivity. The findings suggest that Ca3LiZnV3O12:Sm3+ could be a promising candidate for temperature monitoring applications.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Physical
T. O. Sales, C. Jacinto, W. F. Silva, R. Antunes, D. T. Dias, A. Goncalves, R. El-Mallawany, N. G. C. Astrath, A. Novatski
Summary: TLZ glasses doped with Tm3+/Er3+/Sm3+ ions show potential for temperature sensing and white-light emission, with the ability to change color coordinates based on temperature. These glasses could be used as safety signals in high-temperature environments.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Xiuling Liu, Xiaoyun Mi, Yanyan Guo, Liping Lu, Quansheng Liu, Zhaohui Bai, Xiyan Zhang, Hancheng Zhu
Summary: Optical thermometers have important applications in various fields due to their high sensitivity, high spatial resolution, fast reaction time, and non-contact nature. This study reports a highly sensitive and near-infrared excitable optical thermometer based on CaGdAl3O7:Tm3+, Yb3+ with better stability. The optimized sample exhibits excellent temperature sensing characteristics in the range of 303-503 K, with a maximum relative sensitivity of 0.026 K-1.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Bingjie Han, Jiabao Zhu, Chu Chu, Xinghua Yang, Yuhan Wang, Kairan Li, Yuting Hou, Kang Li, Nigel Copner, Pingping Teng
Summary: This paper comprehensively analyzes novel Sm3+ and Sm3+-Mn4+ activated Sr2GdTaO6 (SGTO) red phosphors for plant growth and optical temperature sensing. The phase, luminescence property, and thermal stability of the material were tested. The results indicate that Sm3+-Mn4+ activated SGTO red phosphor is a luminescent material with potential application in the field of plant growth and optical temperature sensing.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Materials Science, Ceramics
A. D. Timoshenko, O. O. Matvienko, A. G. Doroshenko, S. Parkhomenko, I. O. Vorona, O. S. Kryzhanovska, N. A. Safronova, O. O. Vovk, V. N. Baumer, I Matolinova, S. Hau, C. Gheorghe, R. P. Yavetskiy
Summary: YAG:Sm3+ transparent ceramics with 3-15 at.% Sm3+ doping were prepared by solid-state reactive sintering. The effect of samarium ions concentration on the microstructure and optical properties of the ceramics was investigated. It was found that the solubility limit of samarium ions in the garnet matrix was within the range of 9-11 at.%. The absorption coefficients corresponding to Sm3+ ions transitions increased linearly with increasing Sm3+ doping, and the intensities of the satellites and the broadening of the main spectral lines also increased with the concentration of Sm3+ ions. Highly-doped YAG:Sm3+ ceramics with 9 at.% Sm3+ ions showed low optical losses at 808 nm and a high absorption coefficient at 1064 nm, making them suitable for suppressing parasitic oscillations in YAG:Nd3+ lasers at 1064 nm.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Mingshuang Guan, Yixi Wu, Zhaojing Kuang, Yanyan Guo, Shiqing Xu, Junjie Zhang
Summary: In this study, CsPbBr3 quantum dots were successfully prepared through friction crystallization. This method offers better performance for temperature sensing compared to traditional methods, and can work over a wider temperature range. Moreover, this material exhibits good thermal stability, making it a promising candidate for temperature sensing applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Xiaowei Zhang, Su Zhang, Xiaodong Li, Tao Tan, Haiyan Wu, Weihong Yuan, Ran Pang, Lihong Jiang, Chengyu Li, Hongjie Zhang
Summary: Non-contact luminescence temperature measurement technology has great application potential in various fields. By studying the photoluminescent properties of Nb5+ and Sm3+ ions, it was found that the fluorescence intensity ratio between them can be used as a temperature detecting signal. The co-doped YTaO4 phosphors may be used as optical temperature sensors.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
Yangyinyi Duan, Xiangping Li, Rensheng Shen, Yuhang Zhang, Xin Wang, Zhipeng Guan, Ke Wang, Yongze Cao, Xizhen Zhang, Baojiu Chen
Summary: Sm3+ doped sodium germanate glasses with suitable composition and good luminescence thermal stability were synthesized using high temperature melt-quenching technique. The luminescence performance and optical transition properties of Sm3+ in the glasses were studied. The concentration dependent luminescence quenching of the (4)G(5/2) level of Sm3+ was found to be due to the electric dipole-dipole interaction among Sm3+. Temperature dependent luminescence characteristics and thermal quenching behavior were also investigated, showing excellent luminescence thermal stability.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Ceramics
Nannan Zhu, Ting Wang, Longchao Guo, Ziyang Li, Bosong Duan, Xin An, Qingshan He, Yang Yue, Luyi Yang, Wei Feng, Xue Yu
Summary: In this study, Eu3+-doped calcium niobate CaNbxO6 phosphors were prepared, and their crystal structure, morphology, energy transfer process, and temperature-dependent behaviors were investigated. The CaNbxO6 host matrix exhibited self-activated emission at 470 nm, and the photoluminescence intensity reached its maximum when the nonstoichiometric ratio of Ca2+/Nb5+ ions was 1:1.9. The energy transfer process from the host to Eu3+ ions was demonstrated, with significantly enhanced efficiency in the nonstoichiometric sample. The nonstoichiometric ratio of Nb5+ ions improved the thermal stability of the activators and the relative sensitivity of the phosphor.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Peng Zhang, Xue Yu, Ping Xia, Zhenzhen Cui, Jianhong Yi, Caiju Li, Peng Song, Feng Zhao, Ting Wang, Jianbei Qiu, Xuhui Xu
Summary: In this study, we successfully observed the nucleation-growth-degradation processes of up-conversion nanocrystals (UCNCs) in real-time by using tailored metastable intermediates. We demonstrated the non-classical nucleation processes of UCNCs, recorded the Ostwald ripening and oriented attachment processes that determine their size and morphology, and observed that the degradation of UCNCs is triggered by surface defects.
Review
Chemistry, Multidisciplinary
Jiaqi Chen, Xiaoyang Liu, Guangchao Zheng, Wei Feng, Pan Wang, Jian Gao, Jianbo Liu, Mingzhe Wang, Qingyuan Wang
Summary: Glucose monitoring is crucial for evaluating glucose metabolism disorders. Noble metal nanozymes (NMNZs) are widely used due to their excellent properties. This review summarizes the chemical mechanism of NMNZs with glucose oxidase and peroxidase mimicking activities, and presents detailed strategies for regulating their enzyme-like activities. It also describes the design of NMNZs with enantioselective recognition of D-glucose and L-glucose. The review concludes with discussions on potential solutions to existing challenges and future development possibilities.
Article
Materials Science, Multidisciplinary
Bosong Duan, Ting Wang, Nannan Zhu, Xin An, Qingshan He, Xuanyu Zhu, Haozhe Liu, Wei Feng, Xue Yu
Summary: A novel red-emitting phosphor LaOBr: Eu3+ with layered tetragonal structure was successfully synthesized by introducing Li+ ion doping, which greatly improved the internal quenching efficiency and anti-thermal quenching performance. The fabricated WLED using the LaOBr: Eu3+, Li+ sample showed good color rendering index and correlated color temperature.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Pan Wang, Mengxue Wang, Tao Song, Jiaqi Chen, Xidi Liu, Xiaoyang Liu, Yong You, Huijin Song, Kui Li, Ying Li, Wei Feng, Xulin Yang
Summary: A well-stabilized electrospinning nanofibrous membrane was successfully fabricated by combining high-performance engineering PEN with PDA and Ag NPs. The composite membrane showed comprehensive anti-corrode, anti-heat, and anti-bacterial performance, making it suitable for separating oil-water emulsions under harsh conditions.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Xuanyu Zhu, Ting Wang, Haozhe Liu, Lin Nie, Feng Zhao, Siufung Yu, Jianbei Qiu, Xuhui Xu, Xue Yu
Summary: A strategy for achieving full-visible-spectrum lighting in phosphor-converted white light emitting diodes (pc-WLEDs) is explored by engineering the lattice site occupancy. The introduction of Yb3+ into the Sr sites induces lattice disorder, increases the Sr vacancies, and leads to a remarkable blue emission. Furthermore, a high color-rendering index (CRI) of 89.6 and a correlated color temperature (CCT) of 5382 K are demonstrated in a WLED device fabricated with a combination of Sr3Ga4O9: Bi3+, Yb3+ and CaAlSiN3: Eu2+ phosphors.
MATERIALS TODAY PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Tian-Chi Wang, Shu-Yi Yao, Shuang-Peng Yan, Jing Yu, Zhi-Yong Deng, Alexey Nikolaevich Yakovlev, Bin Meng, Jian-Bei Qi, Xu-Hui Xu
Summary: In this study, a one-dimensional Cs5Cu3Cl6I2 scintillator with high thermal stability was designed and developed. The scintillator showed high thermal stability due to the bridges formed by I-ions in the 1D chain structure, improving its structural rigidity. It exhibited a high steady-state light yield (59,700 photons MeV-1) and the highest spatial resolution for powder-based scintillation screens (18 lp mm-1) after cyclic treatment within the temperature range of 298-423 K. The Cs5Cu3Cl6I2 scintillator has significant potential for application in high-temperature environments, as it allows the visualization of alloy melting. This study provides a new perspective for the design of scintillators with high thermal stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Peng Zhang, Zhaowei Teng, Lei Zhao, Zhichao Liu, Xue Yu, Xiaodie Zhu, Songcheng Peng, Ting Wang, Jianbei Qiu, Qingyuan Wang, Xuhui Xu
Summary: Here, we explore a Nafion@Ag@ZnS/polydimethylsiloxanes (PDMS) composite sensor that provides the description of mechanical action through optics and electronics signals simultaneously. This sensor detects and visualizes the magnitude, direction, velocity, mode of mechanical stimulation, and stress distribution. It also demonstrates outstanding cyclic stability, linearity response character, and rapid response time.
Article
Chemistry, Physical
Lin Nie, Ting Wang, Xue Yu, Wei Gao, Qingpeng Peng, Zhiguo Xia, Jianbei Qiu, Siu Fung Yu, Xuhui Xu
Summary: Direct laser patterning allows precise tailoring of perovskites at the microscale, which is important for advanced optoelectronic devices. However, thermal ablation can lead to imprecise crystallization, limiting the resolution of the technique. This study demonstrates a method of crystallizing perovskite nanoparticles by photon effect, avoiding undesired crystallization and destruction. This technique enables the production of high-transparency, high-resolution, and stable multicolor perovskite PVDF films, potentially applicable in flexible displays.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Ya Liu, Shuangpeng Yan, Tianchi Wang, Qingshan He, Xiaodie Zhu, Chao Wang, Daiyuan Liu, Ting Wang, Xuhui Xu, Xue Yu
Summary: In this study, the long persistent luminescence of 2D all-inorganic perovskites with a self-assembled 2D interlayer galleries structure is investigated. It is found that by replacing Cd2+ with appropriate Mn2+ ions in 2D Cs2CdCl4 Ruddlesden-Popper phase perovskites, the decay time of long persistent luminescence increases from 450 s to 600 s, the luminescence color changes from cyan to orange, and the thermal stability of photoluminescence enhances significantly. Furthermore, diversified anti-counterfeiting modes are fabricated to demonstrate the promising applications of Cs2CdCl4 perovskite systems with tunable persistent luminescence in advanced anti-counterfeiting.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Hui Li, Haodong Ji, Jiajia Liu, Wen Liu, Fan Li, Zhurui Shen
Summary: Interfacial modulation of catalysts can enhance catalytic activity, and this study focuses on revealing the mechanism of reactive species production at different interfaces. Zr-S-4 active sites were successfully constructed on ZnIn2S4 nanosheets, effectively modulating the reaction interface and band structure, which significantly boosted the photocatalytic activity. The modified catalyst exhibited a 3-fold increase in the kinetic rate constant for photocatalytic degradation compared with the pristine ZnIn2S4, and the degradation pathway of TC was altered due to the regulation of reactive species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Zhichao Liu, Xue Yu, Xiuxia Yang, Qingpeng Peng, Xiaodie Zhu, Xuhui Xu, Jianbei Qiu
Summary: A multi-stimuli-responsive dynamic fluorescence and phosphorescence anti-counterfeiting material is designed by introducing Eu3+ ions in NaGdGeO4: Bi3+ to tailor the trap structure. This material features tunable excitation/emission wavelength and excellent physicochemical stability, making it widely used in the field of anti-counterfeiting.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Lan Lu, Songcheng Peng, Lei Zhao, Meiguang Zhang, Jianqiang Xiao, Hongyu Wen, Peng Zhang, Alexey Nikolaevich Yakovlev, Jianbei Qiu, Xue Yu, Ting Wang, Xuhui Xu
Summary: X-ray dose detection is critical in various scientific fields, and this study proposes a visual X-ray dosimetry method using NaLuF4 nanocrystals that change color upon X-ray irradiation. The emission color can be adjusted by tuning the concentration of Ho3+ ions, and the method allows for detection of delayed radiation.
Article
Chemistry, Multidisciplinary
Weiqing Chen, Ting Wang, Tianchi Wang, Jing Yu, Shuyi Yao, Wei Feng, Qingyuan Wang, Ling Huang, Xuhui Xu, Xue Yu
Summary: A strategy for synthesizing flexible scintillator films with high efficiency has been proposed in this study for high-resolution X-ray imaging. The obtained films have high photoluminescence quantum efficiency and steady state light yield, and can suppress scattering and optical crosstalk.
Article
Chemistry, Inorganic & Nuclear
Junxiao Wu, Lei Zhao, Wenbo Chen, Youlin Yang, Yifan Wang, Xuhui Xu
Summary: A thermal-stimulated color-tunable emitting electron-trapping material BaAl12O19:Eu2+ was developed as a deep trap-controlled ODS medium, which can achieve multicomplexing emission intensity, wavelength, and color in the dynamic readout of optical information, thereby improving its security level.
INORGANIC CHEMISTRY FRONTIERS
(2023)
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)
