Article
Physics, Condensed Matter
Lyall Alwafi, Amlan Datta, James M. Pientka, Biplob Barman
Summary: This work investigates the photoexcitation response of CsPbBr3 Quantum Dots (QD) using two different laser wavelengths, and explores the physics behind it. The photoluminescence spectra from the sample exhibit contrasting behavior in terms of emission wavelengths and probing the phase change behavior in these material systems. The contrasting behavior is tentatively attributed to the dominant structural phase and a change in the energy band structure as the system transitions from an orthorhombic phase to a tetragonal one.
SOLID STATE COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Ze Yang, Hao Zhang, Zhaohui Fang, Jianhong Yi, Peng Song, Xue Yu, Dacheng Zhou, Jianbei Qiu, Xuhui Xu
Summary: The study introduces an efficient and cost-saving method for mass production of CsPbBr3 quantum dots, maintaining high photoluminescence quantum yield and narrow full width at half maximum. The perovskite achieved a red shift by adjusting the halogen composition, demonstrating improved stability and color gamut for backlighting display applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Arsenii S. Portniagin, Kseniia A. Sergeeva, Stephen V. Kershaw, Andrey L. Rogach
Summary: Researchers have successfully synthesized wurtzite-phase HgTe nanorods using a two-step cation-exchange strategy. The residual Cu content in the final HgTe nanorods can be tuned by adjusting the solvent concentrations, and the photoluminescence peak position of the nanorods can be controlled by reducing the residual Cu content. Furthermore, field-effect transistors based on the synthesized HgTe nanorods exhibit favorable transport characteristics, and the photodetectors show high responsivity.
CHEMISTRY OF MATERIALS
(2023)
Article
Optics
Zehui Wang, Yongmin Duan, Panpan Li, Shiqing Xu, Junjie Zhang
Summary: In this study, a new material with shortwave shielding effect was successfully prepared by adding V5+ in CsPbBr3 QDs glass, which exhibits superior shielding effect in the blue wavelength band.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Physical
Yexi Li, Dongniu Fan, Ning Sui, Liang Li, Fangfei Li, Xiaochun Chi, Zhihui Kang, Qiang Zhou, Hanzhuang Zhang, Cuili Cui, Yinghui Wang
Summary: PVDF films embedded with different FAPbBr3 (FA = formamidinium) nanocrystals have been synthesized using a fast and direct method, and photodetectors utilizing these films have been fabricated. The relationship between optoelectronic performance and carrier kinetics in the composite film affected by synthesis temperature has been analyzed using transient absorption and temperature-dependent spectroscopy. A primitive fixable light-sensitive detector has been fabricated to broaden the application of PVDF films embedded with different FAPbBr3 nanocrystals in the optoelectronics field. Our results suggest that PVDF films embedded with perovskite nanocrystals can be applied in various semiconductor devices.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Ceramics
Yulia V. Kuznetsova, Ivan D. Popov
Summary: Currently, commercial white LED suffers from poor thermal stability, which limits its application in long service time and high power lighting systems. This study proposes a glass-ceramic solution that can eliminate organic resins in LED encapsulation. By incorporating CdS QDs into the glass, the glass performs both a matrix and a phosphor emitting in the yellow and red spectral regions. The luminescent characteristics of the glass-ceramics can be adjusted by varying the excitation energy. The obtained glass-ceramics show potential as effective luminescent materials for white emitters.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Yang Liu, Yiyuan Gao, Qian Yang, Gao Xu, Xingyu Zhou, Guozheng Shi, Xingyi Lyu, Hao Wu, Jun Liu, Shiwen Fang, Muhammad Irfan Ullah, Leliang Song, Kunyuan Lu, Muhan Cao, Qiao Zhang, Tao Li, Jianlong Xu, Suidong Wang, Zeke Liu, Wanli Ma
Summary: We achieved a low-cost and scalable synthesis of SWIR PbS quantum dot inks for the first time through an extensive investigation of reaction kinetics. The solar cell based on these PbS SWIR quantum dot inks exhibited a record-high power conversion efficiency of 1.44% with an 1100 nm cutoff silicon filter, and the photodetector device showed a low dark current density of 2x10(-6) A cm(-2) at -0.8 V reverse bias and a high external quantum efficiency of 70% at approximately 1300 nm. Our results realize the direct synthesis of low-cost and scalable SWIR quantum dot inks and may accelerate the industrialization of consumer SWIR technologies.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Hailong Wu, Lijia Yao, Wenqian Cao, Yu Yang, Yuanjing Cui, Deren Yang, Guodong Qian
Summary: Lead-halide perovskite nanocrystals (PeNCs) have attractive optical properties, and a host-guest system was constructed by encapsulating PeNCs in a metal-organic framework (MOF) to adjust their properties and enhance their stability and tunability.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
Brian M. Wieliczka, Severin N. Habisreutinger, Kelly Schutt, Jeffrey L. Blackburn, Joseph M. Luther
Summary: Heterojunctions play a crucial role in tailoring the properties of semiconductors in optoelectronic devices. However, fabricating perovskite/perovskite heterojunctions in metal halide perovskite devices has been challenging due to solvent incompatibilities and rapid homogenization caused by ion migration. Recent studies have shown that perovskite nanocrystals can be used to fabricate perovskite/perovskite heterojunctions, offering advantages in terms of optical and electrical properties.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Dongjie Tian, Zhiwei Lai, Han Xu, Fangyuan Lin, Yaqi Jiang, Yipeng Huang, Shuya Wang, Yuting Cai, Jingwen Jin, Rong-Jun Xie, Xi Chen
Summary: This study successfully synthesized OMHs with different dimensions through the design of different organic cations and anion exchange. The analysis of crystal structures confirmed the importance of the interaction between organic cations and metal octahedra. Additionally, the tunable emission properties of the 1D-OMH 3 under varying excitation wavelengths were demonstrated.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Xinyao Shan, Yamei Zhou, Binghan Li, Zaiping Zeng, Botao Ji
Summary: In this study, high-quality wurtzite InAs nanocrystals with tunable emission peak and high quantum yield were successfully synthesized. The synthesis involved the cation exchange of Cu3As nanocrystals and the growth of inorganic passivation layers to eliminate surface trap centers. Additionally, wurtzite ternary InAs0.5P0.5 nanocrystals with polarized short-wavelength infrared emission were also synthesized, demonstrating the potential of these anisotropic nanocrystals as efficient polarized light emitters.
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Federico Montanarella, Maksym V. Kovalenko
Summary: Nanocrystals, as a distinct class of nanomaterials, are being increasingly deployed in various devices in modern society and are projected to play a crucial role in the future. However, it is important to recognize that this cutting-edge technology is rooted in millennia of empirical knowledge and craftsmanship.
Article
Materials Science, Ceramics
Nilanjana Shasmal, Walter Jose Gomes Juste Faria, Francisco Carlos Serbena, Andrea Simone Stucchi de Camargo, Ana Candida Martins Rodrigues
Summary: The effect of heat treatment on Eu/CdS co-doped chloroborosilicate glass was studied, and it was found that heat treatment can change the structure and luminescent properties of the glass. CdS quantum dots and BaCl2 crystals were formed in the glass after heat treatment, and the Eu3+/Eu2+ emission intensity was significantly enhanced.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Lu Zhang, Bobo Yang, Shiliang Mei, Yuxuan Zhu, Rongrong Hu, Jun Zou
Summary: Lead-based perovskites have remarkable photophysical characteristics, but their commercial application is limited by the presence of lead. In this study, a lead-free ODASnBr(4) phosphor with excellent emission properties was prepared and used in the fabrication of white light-emitting devices (WLEDs) for tunable correlated color temperature. This demonstrates the potential of ODASnBr(4) as a strongly emitting and environmentally friendly phosphor material for WLED applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Optics
Xizhen Zhang, Mengqi Lin, Lizhu Guo, Yuhang Zhang, Chuanhui Cheng, Jiashi Sun, Yi Cheng, Yongze Cao, Sai Xu, Xiangping Li, Jinsu Zhang, Baojiu Chen
Summary: Perovskite CsPbBr3 quantum dots glass is suitable for long-wavelength pass filter applications, with different preparation conditions resulting in variations in transmittance, transition wavelength, and optical density.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Daiyuan Liu, Ting Wang, Yichun Liu, Chao Wang, Zhichao Liu, Xiaodie Zhu, Ya Liu, Jian Zhang, Zhaowei Teng, Yang Zhong, Yakovlev Alexey Nikolaevich, Xuhui Xu
Summary: The Eu2+, Mn2+ co-doped LiAl5O8 blue-green-emitting phosphors exhibit thermal stability and high luminescence efficiency. Energy transfer from Eu2+ to Mn2+ ions is observed, resulting in a gradual modulation of emitted colors from blue to green. The phosphors also show zero-thermal-quenching luminescence at high temperatures. These properties make them suitable for UV-pumped WLEDs devices.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Na Li, Shuaishuai Yu, Lei Zhao, Pengfei Zhang, Ziqi Wang, Zhiting Wei, Wenbo Chen, Xuhui Xu
Summary: A new trap-controlled material Sr2MgAl22O36:Mn2+ with bifunctional mechano/thermal sensing applications was developed and investigated. The Sr2MgAl22O36:Mn2+/PDMS composite film exhibited bright green-emitting mechanoluminescence (ML) and thermally stimulated luminescence (TSL) that directly and rapidly responded to mechano/thermal dual stimulation. This study presents a novel approach for the development of optical skins with simple structures and sensitive visibility in the application of intelligent robot tactile sensing.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Meng Zhang, Laibin Zhao, Wenxin Zhao, Ting Wang, Liying Yuan, Yuying Guo, Yuxin Xie, Tingting Cheng, Alan Meng, Zhenjiang Li
Summary: In the past decade, there has been increasing attention on electromagnetic pollution. Developing low-cost, lightweight, simple preparation, and high electromagnetic attenuation efficient absorbing materials has become a feasible solution to this problem. In this study, core-shell SiCNws@MnO2@PPy nanocomposites were successfully prepared and exhibited excellent electromagnetic wave absorption performance, making them a promising material for absorbing electromagnetic waves.
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
Chemistry, Multidisciplinary
Zhichao Liu, Xue Yu, Qingpeng Peng, Xiaodie Zhu, Jianqiang Xiao, Jiangtao Xu, Shouxiang Jiang, Jianbei Qiu, Xuhui Xu
Summary: Researchers manipulated the matrix microstructure evolution of Y3Al5O12: Cr3+ material by adding Ga3+ ions, resulting in enhanced near-infrared zero-phonon line optical output at 688 nm. This discovery of enhancing near-infrared intensity through solid solution provides a new technique for optimizing near-infrared mechanoluminescent materials and opens up new possibilities for biological applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Ceramics
Haozhe Liu, Ting Wang, Yicen Ge, Xuanyu Zhu, Lin Nie, Feng Zhao, Jianbei Qiu, Xuhui Xu, Xue Yu
Summary: Optical thermometry based on distinct temperature-dependent luminescence behaviors of Mn2+ ions in different crystal sites of the NaCa2GeO4F host matrix is explored. The tunable color and distinct temperature-dependent luminescence behavior of Mn2+ ions at different sites are achieved by incorporating Fe3+ ions. This study demonstrates that the NaCa2GeO4F: Mn2+, Fe3+ phosphor is a promising candidate for optical thermometry.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Haihong Guo, Ting Wang, Xuanyu Zhu, Haoze Liu, Lin Nie, Longchao Guo, Tingxiang Gu, Xuhui Xu, Xue Yu
Summary: Complex and high-security-level anti-counterfeiting strategies are essential for information storage and security. In this study, Tb3+ ions doped Sr3Y2Ge3O12 and Tb3+/Er3+ co-doped Sr3Y2Ge3O12 phosphors were fabricated for anti-counterfeiting and information encoding. Various luminescent modes were observed under different stimuli sources, and a dynamic information encryption strategy was proposed. The anti-counterfeiting method based on these phosphors showed attractive performance for advanced anti-counterfeiting technology.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Pengfei Zhang, Junxiao Wu, Lei Zhao, Ziyi Guo, Haitao Tang, Zhaofeng Wang, Zhichao Liu, Wenbo Chen, Xuhui Xu
Summary: A flexible mechanoluminescent composite device based on Ce3+-doped garnet structure phosphors Tb3Al5O12 is proposed in this study, which exhibits high brightness in both bright and dark environments. The device shows good self-recovery performance and zero thermal-quenching performance in the range of 0-100 degrees C. It also maintains high luminescence intensity in humid environments. The study demonstrates the potential application of Tb3Al5O12: Ce3+-based ML composite devices in advanced optical multimode sensors.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Haitao Tang, Zhichao Liu, Hao Zhang, Xiaodie Zhu, Qingpeng Peng, Wei Wang, Tao Ji, Peng Zhang, Yakun Le, Aleksey Nikolaevich Yakovlev, Jianbei Qiu, Guoping Dong, Xue Yu, Xuhui Xu
Summary: With the increasing amount of data, optical data storage has become a leading technology in data storage. However, the conventional optical data storage media has reached the limit of its two-dimensional spatial resolution. In this study, transparent LiGa5O8:Cr3+ glass ceramics are prepared by precipitating LiGa5O8:Cr3+ nanoparticles in situ from a transparent medium. These glass ceramics demonstrate excellent deep-trap carriers storage ability and can achieve bit-by-bit optical data in three-dimensional space through photon trapping/detrapping mode. Furthermore, this optical storage mechanism is extended to four dimensions through temperature optical encryption. Notably, the written information remains clearly visible even after being recorded for 200 days. This work enables high-precision storage of information in four dimensions and provides new insights into the design and fabrication of next-generation storage materials.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Songcheng Peng, Luwei Chen, Lan Lu, Peng Zhang, Hongyu Wen, Shuangpeng Yan, Wei Wang, Yuanyuan Xiong, JinKang Lu, Jianbei Qiu, Jie Yu, Xue Yu, Xuhui Xu
Summary: X-ray time-lapse imaging allows for precise radiographic imaging after X-ray termination, simplifying X-ray detectors and avoiding health hazards. By replacing sodium ions with cesium ions, monodisperse NaLuF4:Tb3+ nanocrystals achieve superior X-ray time-lapse imaging. The incorporation of cesium ions amplifies deep trap storage capacity, ensuring stable carriers even after 192 hours of X-ray termination. X-ray time-lapse imaging not only accurately reads long-term stored imaging information but also visualizes X-ray imaging independent of dangerous radiation, providing great opportunities for large-scale X-ray inspection.
ADVANCED OPTICAL MATERIALS
(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
Materials Science, Multidisciplinary
Hao Li, Zhaowei Teng, Min Zhou, Tao Ji, Yang Yue, Hui Ying Yang, Jianbei Qiu, Qingyuan Wang, Xuhui Xu, Xue Yu
Summary: Researchers have developed an organic metal halide scintillator that can address the light scattering issue in X-ray imaging. This scintillator has thermoplastic characteristics and can be used as an adhesive paint, fundamentally solving the problem of light scattering. It has good processability and recyclability, making it suitable for the development of low-cost X-ray detectors and imagers.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Chaochao Wang, Zhichao Liu, Alexey Nikolaevich Yakovlev, Tingting Hu, Tatiana Grigorievna Cherkasova, Xiaodie Zhu, Ya Liu, Jian Zhang, Daiyuan Liu, Xue Yu
Summary: This study demonstrates a trap-controlled mechano-luminescence (ML) phosphor of SrGa2O4:Tb3+ (SGO:Tb3+) with an adjustable ML color. By co-doping with Dy3+ and Eu3+ ions, the relationship between ML and thermoluminescence (TL) is verified, allowing for the manipulation of the constructed traps. The multicolor ML phosphor is employed in creating encrypted anticounterfeiting patterns.
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)