Article
Multidisciplinary Sciences
Natalie Tarasenka, Vladislav Kornev, Andrei Ramanenka, Ruibin Li, Nikolai Tarasenko
Summary: This work reports on the preparation of Nd3+ doped ZnO nanoparticles using laser ablation and post-ablation irradiation techniques. The photoluminescence properties of the synthesized nanoparticles in the second near infrared spectral window were studied. It was found that the Nd-doped ZnO nanoparticles exhibited near-infrared luminescence, and the luminescence properties could be controlled by variations in solvent composition and additional laser irradiation.
Article
Chemistry, Physical
Xi Wang, Caoyuan Zhu, Li Jin, Kui Lin, Yingying Shao, Jian Yang, Yidang Wang, Yu Zhu, Fei Tian
Summary: A facile approach was presented for the controllable synthesis of multifunctional ZnO decorated Fe hierarchical nanostructures, which showed promising potential in the photocatalytic degradation of aromatic dye Rhodamine B. The Fe@ZnO CSNSs displayed good performance under natural light irradiation and had effective separation of photogenerated carriers, enhancing their photocatalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Fatemah H. Alkallas, Hoda A. Ahmed, Rami Adel Pashameah, Salhah H. Alrefaee, Arafat Toghan, Amira Ben Gouider Trabelsi, Ayman M. Mostafa
Summary: A nanosecond solid state Nd:YAG laser was used to develop nanocomposites from MWCNTs coated with ZnO nanoparticles in a single step. The physicochemical features of the produced samples were investigated, and it was found that the nanocomposites exhibited improved optoelectronic properties. These nanocomposites could potentially be used in optical devices like optical switches and optical sensors.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Qi Chen, Yixing Ye, Jun Liu, Shouliang Wu, Pengfei Li, Changhao Liang
Summary: The study investigates the stability evolution of silver nanoparticles in colloid, showing that uncapped Ag NPs exhibit good dispersion stability but are easily disrupted by oscillation treatment, leading to the formation of one-dimensional nanochains. Surface capped Ag NPs with typical cationic and anionic surfactants display better dispersion and structure stability compared to uncapped Ag NPs, with CTAC capped Ag NPs showing superior chemical stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Khawla S. Khashan, Ghassan M. Sulaiman, Farah A. Abdulameer, Salim Albukhaty, Mohammed A. Ibrahem, Tahani Al-Muhimeed, Abeer A. AlObaid
Summary: Laser ablation in liquid was used to prepare TiO2 NP suspension, and the samples were characterized by various instruments. The relationship between laser ablation time and TiO2 NP size distribution was investigated.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Neli Mintcheva, Dinesh Kumar Subbiah, Marat E. Turabayev, Stanislav O. Gurbatov, John Bosco Balaguru Rayappan, Aleksandr A. Kuchmizhak, Sergei A. Kulinich
Summary: The preparation method can greatly affect the properties of mixed-oxide materials, which often show better performance in photocatalysis and gas sensing compared to single-metal oxides. In this study, semiconductor nanomaterial hybrids based on TiO2 and ZnO were prepared using laser ablation and tested as chemiresistive gas sensors. The gas-sensing properties of the hybrids were found to be influenced by their surface chemistry, morphology, crystallinity, and phase composition.
Article
Optics
Chujun Yao, Wenguang Chen, Lequn Li, Kai Jiang, Zhigao Hu, Jiamin Lin, Ning Xu, Jian Sun, Jiada Wu
Summary: This paper presents a simple and feasible method for liquid-phase fabrication of Au-decorated ZnO nanocomposites using pulsed laser ablation, resulting in materials with high photocatalytic activity under both UV and visible light. The incorporation of Au nanoparticles with ZnO significantly enhances the photogeneration of charge carriers and promotes the separation of the photogenerated charge carriers, leading to excellent photocatalytic performance for the degradation of organic pollutants. Compared with pristine ZnO, the ZnO:Au nanocomposites exhibit nearly double the rate constant for the photodegradation of Rhodamine B under visible light illumination.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Elena Manuela Stanciu, Alexandru Pascu, Catalin Croitoru, Ionut Claudiu Roata, Daniel Cristea, Mircea Horia Tierean, Iosif Hulka, Ioana Madalina Petre, Julia Claudia Mirza Rosca
Summary: This study introduces a new laser processing technique in a liquid media to improve the surface mechanical properties of materials. By adding nickel acetate to the liquid media, the diffusion of nickel in C45E steel allows for micro-alloying and phase transformation up to a depth of 30 mu m from the surface. The laser-treated surface exhibits enhanced microhardness and improved corrosion resistance.
Article
Materials Science, Multidisciplinary
L. Escobar-Alarcon, A. Limas-Escobar, D. A. Solis-Casados, S. Romero, E. Haro-Poniatowski
Summary: This work demonstrates the use of liquid laser ablation assisted by an ultrasonic field to prepare carbon nanostructures with photoluminescent properties. The results show that the application of the ultrasonic field has important effects on the photoluminescence emission properties of the nanostructures.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Engineering, Environmental
Talshyn Begildayeva, Seung Jun Lee, Yiseul Yu, Juhyeon Park, Tae Ho Kim, Jayaraman Theerthagiri, Ahreum Ahn, Hyeon Jin Jung, Myong Yong Choi
Summary: Comparative experiments were carried out to study the effects of different solvents on the synthesis of copper-based nanoparticles. It was found that the copper NPs produced in methanol exhibited high catalytic activity. Particles with graphitic carbon layers showed superior catalytic performance in reducing nitrobenzene.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Optics
Taha M. Rashid, Uday M. Nayef, Majid S. Jabir
Summary: The study successfully prepared Au:ZnO core-shell nanoparticles and analyzed their structure, morphology, and particle size through XRD and TEM. The results showed that the ZnO NPs had a wurtzite structure, while the Au NPs had a cubic crystal structure, and the size of Au:ZnO CSNPs increased compared to individual nanoparticles.
Editorial Material
Physics, Multidisciplinary
Hua-Wei Deng, Di-Hu Chen
Summary: Monoclinic Gd2O3:Er3+ nanoparticles with up-conversion and down-conversion luminescence properties were successfully synthesized, and tunable luminescence was achieved. The nanoparticles exhibited low cytotoxicity and strong fluorescence in cells, making them promising candidates for bio-imaging or other fields that require controllable fluorescence.
Article
Chemistry, Analytical
Fatemah H. Alkallas, Shoug M. Alghamdi, Ameenah N. Al-Ahmadi, Amira Ben Gouider Trabelsi, Eman A. Mwafy, W. B. Elsharkawy, Emaan Alsubhe, Ayman M. Mostafa, Reham A. Rezk
Summary: A high-quality n-type CdS on a p-type Si (111) photodetector device was successfully prepared using a one-pot method based on ns laser ablation in a liquid medium. The CdS structure exhibited good crystallinity and a direct optical energy band gap of 3.2 eV. The CdS/Si hetero-structured device showed improved performance compared to other techniques, with high photocurrent and ideal factors.
Article
Materials Science, Multidisciplinary
Lumeng Liang, Weili Shen, Jiaxin Wang, Teng Ma, Jun Chen
Summary: Recent research has shown the excellent nonlinear optical properties of perovskite materials, with efforts being made to further improve their application in nonlinear optical devices. This study focused on studying the nonlinear optical performance of perovskite quantum dots (PQD) and discovered its reverse-saturable absorption property and optical limiting potential. By compounding other materials, such as antimonene, with PQD, the nonlinear optical performance was successfully enhanced for practical applications like protecting human eyes and optical equipment from high-power laser damage.
Article
Thermodynamics
Zhiming Liu, Yuxing Li, Wuchang Wang, Guangchun Song, Xinran Yu, Zhigang Li, Honghong Wang, Wensheng Xiao, Hongyan Wang
Summary: The study investigates the characteristics of hydrate formation in surfactant solutions, which is important for the industrial application of hydrate-based technologies. The results demonstrate the formation of hydrate spots in the liquid film and the migration of the liquid phase within the hydrate particles. The mechanisms of hydrate particle burst and the formation of concentric lines are proposed.
Review
Chemistry, Physical
Daquan Zhang, Qianpeng Zhang, Yiyi Zhu, Swapnadeep Poddar, Yuting Zhang, Leilei Gu, Haibo Zeng, Zhiyong Fan
Summary: This article provides a systematic review of recent progress in the synthesis, integration, property characterization, and advanced optoelectronic applications of one-dimensional metal halide perovskite nanowires. It discusses the methods used to synthesize these nanowires, as well as techniques for integrating them into nanowire arrays. The article also highlights the enhanced stability and superior optoelectronic properties of these nanowires, enabling excellent performance in various optoelectronic devices.
ADVANCED ENERGY MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Teng Ma, Jun Chen, Ziyi Chen, Lumeng Liang, Jinning Hu, Weili Shen, Zhenhua Li, Haibo Zeng
Summary: This article introduces the excellent performance of Micro-LED as a new generation of display technology in the display market, and details the methods for achieving Micro-LED full-color display from a technical perspective, as well as the current research achievements and challenges.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Chencheng Peng, Rui Zhang, Hongting Chen, Yang Liu, Shuai Zhang, Tao Fang, Runda Guo, Jibin Zhang, Qingsong Shan, Yizheng Jin, Lei Wang, Lintao Hou, Haibo Zeng
Summary: Through the systematic study of the Pb precursor and in situ characterization of the PNCs, a novel demulsification-crystallization model is revealed. By tailoring this model using a multiple-acid-anion synergistic assisted strategy, high-quality PNCs are successfully obtained, leading to a top efficiency for green light-emitting diodes.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Yang Liu, Yuelei Li, Xudong Hu, Changting Wei, Bo Xu, Jing Leng, Haibo Miao, Haibo Zeng, Xiaoming Li
Summary: Surface ligands play important roles in the growth and stability of quantum dots (QDs). This study investigates the influence of dodecylbenzene sulfonic (DBSA) ligand on perovskite QDs (PQDs). The results show that DBSA-capped PQDs exhibit abnormally ripening under high-temperature conditions. A new mechanism for ion migration suppression is proposed based on internal lattice relaxation and inter-particle migration pathway elimination. However, the external quantum efficiency of the corresponding light-emitting devices is poor, which could be attributed to the unbalanced colloidal stability and film conductivity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Optics
Fan Xu, Haoming Wei, Yangqing Wu, Yu Zhou, Jinkai Li, Bingqiang Cao
Summary: CsPbCl3 perovskite films were successfully grown on quartz substrates by RF-magnetron sputtering method, and their photoluminescence properties were studied over a temperature range of 10 K to 300 K. A near bandgap emission peak (around 410 nm) was observed in the violet region with a few nanoseconds lifetime at room temperature. Surprisingly, this peak exhibited a non-monotonic shift with increasing temperature, unlike traditional semiconductors or the same group of perovskites. The origin and temperature-dependent shift of this peak can be well explained by the Bose-Einstein two-oscillator model, which takes into account the interaction between electrons and phonons.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Shuhua Yang, Yanwei Cui, Guangxu Yang, Songfang Zhao, Jieqiang Wang, Degang Zhao, Chao Yang, Xiutong Wang, Bingqiang Cao
Summary: In this study, a hierarchical porous carbon induced by ZnCl2 from corncob cellulose is developed through a single-step activation process. The material exhibits suitable micropores for high energy storage and sufficient mesopores for high-rate performance, thereby improving the performance of zinc-ion hybrid supercapacitors. The optimized hierarchical porous carbon shows high specific capacity, high energy density, and good cycling stability. The assembled quasi-solid-state flexible hybrid supercapacitor also demonstrates high specific capacity, satisfactory mechanical properties, and promising application prospects.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Inorganic & Nuclear
Jia Dong, Xu Feng, Jinbiao Jia, Beibei Shi, Yangqing Wu, Bingqiang Cao
Summary: In this study, a stoichiometric CeO2 film was proposed as an annealing-free electron transport layer for efficient perovskite solar cells. The CeO2 nanocrystals were prepared via a solvothermal method and dispersed in cyclohexane to form a stable solution. The CeO2 electron transport layer was then fabricated by spin-coating method without any annealing or drying process. Optimization of the solvothermal reaction time resulted in CeO2 nanocrystals with excellent electron extraction performance. An efficiency of 16.53% was achieved after introducing a C60 interlayer.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Review
Nanoscience & Nanotechnology
Chien-Yu Huang, Hanchen Li, Ye Wu, Chun-Ho Lin, Xinwei Guan, Long Hu, Jiyun Kim, Xiaoming Zhu, Haibo Zeng, Tom Wu
Summary: Metal halide perovskites, particularly inorganic perovskite quantum dots (QDs), have attracted significant attention due to their extraordinary physical properties and high photovoltaic performance. Inorganic perovskite QDs possess quantum confinement effects, high photoluminescence quantum yield, and defect-tolerant structures, making them suitable for electronic applications. This review provides an overview of the state-of-the-art research progress on inorganic perovskite QDs, focusing on their electronic applications such as transistors and memories, and discusses potential strategies for advancing inorganic perovskite QD technologies.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Shichen Yuan, Tao Fang, Jing Huang, Xiansheng Li, Changting Wei, Yihui Zhou, Yan Li, Xin Zheng, Jinhai Huang, Jianhua Su, Glib Baryshnikov, Wallace C. H. Choy, Haibo Zeng, Bo Xu
Summary: Researchers have developed a high-mobility electron-transporting material B2 to balance charge injection in blue perovskite quantum dot light-emitting diodes (Pe-QLEDs), leading to improved device performance and stability.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Yi Zhang, Suk-Ho Song, Jae-In Yoo, Hyo-Bin Kim, Qingsong Shan, Haibo Zeng, Jang-Kun Song
Summary: In this study, the synergetic effects of ligand removal, defect repair, and surface encapsulation on the photoluminescence intensity and ambient stability of PQD thin films were investigated. The removal of ligands and repair of defects significantly improved the photoluminescence intensity, while surface encapsulation enhanced the ambient stability. The highest photoluminescence intensity and best ambient stability were achieved when all three post-treatments were applied in the proper order.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Lili Xu, Haifeng Zheng, Bo Xu, Gaoyu Liu, Shengli Zhang, Haibo Zeng
Summary: We propose a strategy to inhibit nonradiative recombination in the hole transport layer (HTL) by introducing electron-donating groups to enhance conjugation effect and electron cloud density in 2D triphenylamine polymers. Nonadiabatic molecular dynamics calculations confirm that conjugated systems with electron-donating groups exhibit smaller energy level oscillation compared to those with electron-absorbing groups. Further investigation reveals that the introduction of low-frequency phonons in electron-donating group systems shortens nonadiabatic coupling and inhibits nonradiative recombination. These electron-donating groups can decrease the valence band maximum of 2D polymers and promote hole transport. Our study presents a new design strategy to suppress nonradiative recombination in HTL for efficient perovskite optoelectronics.
Review
Chemistry, Multidisciplinary
Linxiang Yang, Shuai Zhang, Bo Xu, Jiangyuan Jiang, Bo Cai, Xinyi Lv, Yousheng Zou, Zhiyong Fan, Heesun Yang, Haibo Zeng
Summary: This review summarizes the recent progress of I-III-VI quantum dots (QDs) and their application in light-emitting diodes (LEDs). Firstly, the luminescence mechanism based on the electronic-band structural characteristics of I-III-VI QDs is illustrated. Secondly, the preparation mechanism, regulation of photophysical properties, and application progress, especially in LEDs, of I-III-VI QDs are summarized. Finally, perspectives on the current status, challenges, and performance improvement strategies in promoting the evolution of QDs and QLEDs are provided, indicating the future directions in this field.
Article
Nanoscience & Nanotechnology
Xiufeng Song, Yuxuan Jian, Xusheng Wang, Jiawei Chen, Qingsong Shan, Shengli Zhang, Zhanyang Chen, Xiang Chen, Haibo Zeng
Summary: Perovskites have great potential for use in photodetectors due to their exceptional electrical and optical properties. By integrating two-dimensional materials with perovskites, it is possible to achieve excellent optoelectrical properties by utilizing the high carrier mobility of the 2D materials and strong light absorption of perovskite. In this study, a photodetector based on the WTe2/CsPbI3 heterostructure is demonstrated. The WTe2/CsPbI3 heterojunction facilitates efficient charge transfer, leading to quenching and shortened lifetime of photoluminescence for CsPbI3 perovskite. Coupling with WTe2 significantly improves the photoresponsivity of the CsPbI3 photodetector due to the high-gain photogating effect. The WTe2/CsPbI3 heterojunction photodetector exhibits a large responsivity of 1157 A W-1 and a high detectivity of 2.1 x 10(13) Jones, paving the way for high-performance optoelectronic devices based on 2D materials/perovskite heterojunctions.
Article
Nanoscience & Nanotechnology
Shuai Zhang, Linxiang Yang, Gaoyu Liu, Shengli Zhang, Qingsong Shan, Haibo Zeng
Summary: In this research, an ultrathin indium sulfide shell was constructed on the surface of Zn-Ag-In-Ga-S quantum dots to effectively eliminate electron vacancies and enhance the photoluminescence quantum yield. The optimized structure also alleviated lattice distortion and achieved a more balanced carrier distribution within the quantum dots. Based on these improvements, red quantum dot light-emitting diodes with the highest external quantum efficiency were achieved.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Energy & Fuels
Hong Zhu, Gaoyu Liu, Bihui Sun, Yuhui Dong, Shengli Zhang, Bo Xu, Yousheng Zou, Haibo Zeng
Summary: Lead-based metal halide perovskite materials have been rapidly developed due to their excellent optoelectronic properties, but concerns about their environmental impact and potential toxicity hinder their commercial development. This review summarizes the theoretical evolution and characteristics of lead-substituted perovskites, as well as the current investigation of lead-less and lead-free perovskites including synthesis, optoelectronic properties, and applications. The positive effects of lead-less and lead-free perovskites on structure, optoelectronic properties, and associated devices are emphasized. Future prospects and challenges for environmentally friendly perovskite materials are also discussed.
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)