Review
Energy & Fuels
Muhammad Iqbal, Malik Muhammad Nauman, Farid Ullah Khan, Pg Emeroylariffion Abas, Quentin Cheok, Asif Iqbal, Brahim Aissa
Summary: The review summarizes recent developments in vibration-based energy harvesters (VEHs) with a focus on piezoelectric, electromagnetic, and hybrid piezoelectric-electromagnetic energy harvesters. Various vibration and motion-induced energy harvesting prototypes have been discussed in detail. Piezoelectric energy harvesters are typically in the millimeter to centimeter scales with resonant frequencies ranging from 2-13 900 Hz, while electromagnetic energy harvesters can potentially reach up to 778.01 mu W/cm(3). Hybrid energy harvesters (HEHs) show the highest power densities due to combined piezoelectric-electromagnetic energy conversion, ranging from 35.43-4900 mu W.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Xiaofei Liu, Jian Wang, Zhonghui Shen, Hongjian Zhang, Baowen Li, Yong Zhang, Xin Zhang
Summary: This study proposes a flexible piezoelectric polymer nanocomposite based on CNTs@PZT nanofibers network, which improves the electrical conductivity and mechanical strength of the composite material by introducing carbon nanotubes. The experiments show that the piezoelectric generator based on the CNTs@PZT nanofibers network with an optimal addition of 0.6 wt% CNTs exhibits higher electrical output performance and power density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Instruments & Instrumentation
Mariano Febbo, Bruno F. A. Prado, Vinicius C. Smarzaro, Carlos A. Bavastri
Summary: Energy harvesting devices convert natural forms of energy into electrical energy. This paper presents an alternative methodology for characterizing the dynamic behavior of a vibrating composite system composed of a cantilever steel base beam and a piezoelectric beam. The approach simplifies the mathematical representation of the system and enables the system dynamics to be described solely in terms of the primary system's coordinates, making it advantageous for optimization environments. The methodology is validated through numerical findings and experimental frequency response functions, demonstrating its cost-effective application in parameter identification and optimal design for energy generation.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Automation & Control Systems
Salar Hatam, Saber Mohammadi, Akram Khodayari
Summary: The mechanical vibration energy harvesting method using multi-switch circuit with adaptive inductance aims to maximize harvested energy by connecting the vibrating piezoelectric element to a special interface circuit. Compared to the standard simple resistive circuit, this new method can achieve 2 to 10 times higher harvested power in different frequency ranges, demonstrating significant improvement in energy collection efficiency.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2021)
Article
Chemistry, Physical
Byeong Kon Kim, Kwan Sik Park, Sung Hun Key, Yong Soo Cho
Summary: Piezoelectric energy harvesters based on PZT ceramics have been extensively studied for low-power applications. This study proposes unprecedented multiple-harvester structures with record-breaking performance for nonresonant-frequency or extremely low-frequency applications. Through the combination of PZT with relaxor materials, the researchers optimized the structures and piezoelectricity, leading to exceptional energy-harvesting performance of the four-layer 0.4PZN-0.6PZT unimorph cantilever.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Xuanyi Wang, Huakang Xia, Yinshui Xia, Yidie Ye, Ge Shi, Xingyu Chai
Summary: This letter proposes a novel approach called energy harvesting and acceleration measuring (EHAM) using a single piezoelectric transducer (PZT). The EHAM system employs a time-division multiplexing strategy to harvest vibration energy and measure vibration acceleration. Experimental results demonstrate that the EHAM system can perform EH and AM operations effectively. The EHAM solution can be a candidate for self-powered acceleration measurement.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Mechanics
Guangjing Huang, Yingjie Xia, Yuting Dai, Chao Yang, You Wu
Summary: This study investigates the fluid-structure interaction in piezoelectric energy harvesting and the effects of the location of piezoelectric harvesters and the angle of attack on energy harvesting performance. The results indicate that the location of the piezoelectric harvester has a negligible effect on energy harvesting performance but can significantly impact the fluid-structure interaction and energy harvesting performance.
Article
Engineering, Electrical & Electronic
Xiudeng Wang, Yinshui Xia, Ge Shi, Zhangming Zhu, Huakang Xia, Yidie Ye, Zhidong Chen, Libo Qian, Lianxi Liu
Summary: A mutually synergistic hybrid energy harvesting (SHEH) circuit with both AC and DC energy harvesting capability is proposed, where the vibration period of the piezoelectric transducer (PZT) serves as the switching signal for photovoltaic (PV) energy harvesting. Injecting a small portion of PV energy into PZT during the sampling phase enhances the damping force and charge extraction of PZT. The total synergistically extracted power from the proposed hybrid harvester is theoretically higher than the sum of the power obtained from each transducer independently.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2023)
Article
Instruments & Instrumentation
Daniel Zabek, Rhys Pullins, Matthew Pearson, Andrzej Grzebielec, Tadeusz Skoczkowski
Summary: This paper explores the potential to harvest mechanical vibrations and generate electrical energy using a novel piezoelectric-rubber composite structure. Experimental load testing and advanced dynamic modeling were used to verify the device's performance and optimize its geometry, making it suitable for structural health monitoring and remote sensing applications.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Chemistry, Physical
Jianhua Li
Summary: In this study, transgranular type PZT ceramic nanocomposites were fabricated by incorporating ZrO2 nanoparticles, which significantly improved the mechanical and piezoelectric properties. The optimal piezoelectric performance was achieved when the ZrO2 content was 0.02.
Article
Engineering, Electrical & Electronic
Xiudeng Wang, Yinshui Xia, Yingfei Du, Huakang Xia, Ge Shi, Yidie Ye, Zhidong Chen
Summary: This article proposes a multi-input synchronous electric charge extraction (MI-SECE) interface based on buck structure for piezoelectric energy harvesting, and both theoretical analysis and experimental test results demonstrate its effectiveness in extracting energy from multi-PZTs simultaneously with any phase difference.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
P. Deepak, Boby George
Summary: This study introduces a new magnetically coupled method to efficiently transfer vibrational energy to a piezoelectric energy harvester from a source where direct physical contact is not possible. The proposed method offers flexibility in adjusting resonant frequency and increases bandwidth and performance by introducing nonlinearity through magnets.
IEEE SENSORS JOURNAL
(2021)
Article
Physics, Applied
Zhiwei Zhang, Hongjun Xiang, Lihua Tang, Weiqing Yang
Summary: Piezoelectric energy harvesting from bridge vibrations has potential for powering wireless sensors used for bridge health monitoring. This study comprehensively analyzes the performance of a piezoelectric energy harvester (PEH) subject to measured railway bridge vibrations and compares the energy storage on a capacitor using four different interface circuits.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Chemistry, Analytical
Domenico Tommasino, Federico Moro, Bruno Bernay, Thibault De Lumley Woodyear, Enrique de Pablo Corona, Alberto Doria
Summary: This research develops a mathematical model of a vibrating slat and couples it with a piezo-electric patch model to calculate the power generated by the strain harvester in the presence of broad-band excitation typical of the aeronautic environment. The optimal position of the piezoelectric patch along the slat length is discussed in relation to the slat's vibration modes.
Article
Engineering, Mechanical
Feng Qian, Leandro S. P. da Silva, Yabin Liao, Lei Zuo
Summary: Due to piezoelectric softening and dissipative nonlinearities, the piezoelectric cantilever energy harvester exhibits nonlinear hysteresis when subjected to large excitation. These nonlinearities have brought significant challenges to the modeling and response prediction of randomly excited piezoelectric energy harvesting systems. In this study, the voltage responses of the nonlinear piezoelectric cantilever energy harvester under random excitation are modeled using statistical linearization technique and experimentally validated. The results show that the statistically linearized model agrees well with experimental measurements in a broadband frequency range.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Materials Science, Biomaterials
Neelaambhigai Mayilswamy, Niranjana Jaya Prakash, Balasubramanian Kandasubramanian
Summary: Electrospinning is a versatile technique for fabricating nanofibers with various advantages. This article discusses the use of electrospun biodegradable polymer nanofibers in biomedical applications, including tissue engineering, wound dressing, and drug delivery. It also explores the interaction studies between polymers loaded with nanoparticles through computational studies.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2023)
Article
Polymer Science
Sushil S. Pawar, R. Baloji Naik, Srikanth Billa, Sangram K. Rath, Tapan K. Mahato, Balasubramanian Kandasubramanian
Summary: Self-stratifying coatings allow for the segregation of different coating layers in a single application, eliminating the need for multiple coating steps. This study investigates the effect of pigmentation on the stratification of epoxy and silicone resins in a solvent-free coating system. The results show that the pigment volume concentration has a significant impact on the stratification of the resins. Analytical techniques such as contact angle measurement, infrared spectroscopy, electron microscopy, and X-ray spectroscopy were used to study the degree of stratification at different length scales. Rheological studies were also conducted to understand the curing behavior and its effect on stratification. The findings suggest that a PVC of 20% achieves the optimal stratification, anticorrosive, and hydrophobic properties.
Article
Materials Science, Biomaterials
Alsha Subash, Abina Basanth, Balasubramanian Kandasubramanian
Summary: Bone tissue engineering (BTE) is a method that allows for precise control of cell and matrix dissemination, making it possible to fabricate materials with potential and functional bone regeneration. Polyphosphazene/hydroxyapatite composites have shown excellent mechanical properties, biocompatibility, bioactivity, and biodegradability, making them promising candidates for functional bone regeneration in BTE.
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS
(2023)
Article
Engineering, Biomedical
Niranjana Jaya Prakash, Xungai Wang, Balasubramanian Kandasubramanian
Summary: According to the World Health Organization, high-income countries generate an average of 0.5 kg of hazardous waste per bed every day. In order to reduce the adverse effects of synthetic materials and chemicals, researchers have been exploring greener technologies and materials. Silk fibroin has attracted significant scientific interest due to its superior toughness, tensile strength, biodegradability, Young's modulus, functional groups, ease of processing, and biocompatibility. Combining silk fibroin with natural materials can provide a sustainable solution to the problems caused by chemical-based treatment techniques. This review discusses the structural aspects of silk fibroin and its ability to form composites with other natural materials, such as curcumin, keratin, alginate, hydroxyapatite, hyaluronic acid, and cellulose, which can replace synthetic materials and contribute to biomedical engineering.
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
(2023)
Review
Energy & Fuels
Nishant Gaikwad, Priya Gadekar, Balasubramanian Kandasubramanian, Fiyanshu Kaka
Summary: The rapidly growing need for a stable electric supply has led to energy crises caused by inconsistent renewable and inadequate non-renewable energy sources. This emphasizes the importance of reliable hybrid energy storage systems that combine contrasting electrical characteristics and provide sustained electrochemical performance. Supercapacitors, particularly those utilizing polymer nanocomposites, show great potential in surpassing traditional energy storage systems by offering significantly higher power densities and longer life cycles. This review extensively discusses the potential of complex polymer nanocomposites as electrodes and electrolytes to achieve high energy density supercapacitors, as well as the use of continuum level approaches to understand the influence of electrode and electrolyte morphologies on supercapacitor performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
N. Jaya Prakash, D. Shanmugarajan, B. Kandasubramanian, P. Khot, K. Kodam
Summary: The production of biodegradable dressing capable of sustained drug release, along with the monitoring of wound conditions, represents new heights of multifunctional platforms for wound care. The reported curcumin-loaded silk fibroin has shown sustained drug release over the time of 10 days through a non-Fickian diffusion process satisfying Korsmeyer-Peppas' model along with the visual monitoring of wound healing through notable color variation with pH as a biomarker. The superhydrophobic nature (water contact angle = 163.7) of the SF, along with the lipophilicity (CA = 0 (Blood)) and hygroscopic nature prevents wetting of wound surface, whereas the excess exudates from wounds are absorbed along with sufficient water and oxygen permeability. The pH responsiveness as a result of the keto-enol tautom-erism in curcumin was utilized for wound monitoring through visual indication enabling even ordinary people to detect the state of the wound. The in-situ biodegradation studies verified using cow-dung slurry, the degradability of the material with 25.3% weight loss within 30 days following first-order kinetics (R2 = 0.994), as a result of the attack of proteolytic enzymes on the amino acid units of SF, mitigating the concerns of medical wastes. (c) 2022 Elsevier Ltd. All rights reserved.
MATERIALS TODAY CHEMISTRY
(2023)
Review
Engineering, Manufacturing
Komal Sandeep Pandya, Sarang Subhashchandra Shindalkar, Balasubramanian Kandasubramanian
Summary: This paper focuses on the significance of the direct ink writing (DIW) process in the additive manufacturing industry, which enables the construction of 3D geometries using multifaceted materials. It emphasizes the influence of key process parameters, such as nozzle diameter, extrusion rate, nozzle substrate distance, extrusion pressure, and layer thickness, on ink rheology and flow. The paper also mentions the application of emerging technologies, such as machine learning, for controlling process parameters and improving ink rheology models.
PROGRESS IN ADDITIVE MANUFACTURING
(2023)
Review
Biochemistry & Molecular Biology
Niranjana Jaya Prakash, Supriya Sanatkumar Sarkar, Balasubramanian Kandasubramanian
Summary: The development of implantable devices using biocompatible shape memory polymers offers a less invasive alternative to the insertion of large, impliable devices. Silk materials exhibit heterogeneity in their genetic structure and physical properties due to folding and unfolding processes, and possess stimuli-responsive properties. This article explores the stimuli-responsive nature of silk and its potential applications in biomedical devices.
MACROMOLECULAR BIOSCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Shatakshi Saxena, Michael Johnson, Fuhar Dixit, Karl Zimmermann, Shreya Chaudhuri, Fiyanshu Kaka, Balasubramanian Kandasubramanian
Summary: MXenes are a research hotspot in 2D materials with potential to revolutionize material technology in fields such as energy storage and drinking water desalination. However, the current synthesis methods are a bottleneck for their sustainable development. This review explores the use of green solvents in MXene synthesis and their impact on material properties. The aim is to raise awareness about the environmental impact of MXene synthesis and promote the development of environmentally friendly and efficient MXene derivatives for commercial energy applications.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Review
Polymer Science
A. P. Ashika, Amrita Nighojkar, Alsha Subash, Balasubramanian Kandasubramanian
Summary: Hydrogen, as a clean fuel, can reduce the greenhouse gas emissions caused by burning coal fuels and crude oil, which accounts for 97% of all fuel sources. However, storing hydrogen gas in gas cylinders is expensive and impractical. Polymers, with their low cost and ability to adsorb hydrogen, can play a crucial role in efficiently utilizing hydrogen as a fuel in membranes, sieves, and microporous organic frameworks for clean energy generation. This review discusses the different architectures of polymers, their physicochemical traits, preparation methods, and the prospects of commercial utility.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Prakash M. Gore, Supriya Sanatkumar Sarkar, Minoo Naebe, Xungai Wang, Balasubramanian Kandasubramanian
Summary: The study demonstrates the use of waste silk fabric functionalized with PLA and Activated charcoal for oil/solvent recovery from simulated seawater. The functionalized fabric achieved an average separation efficiency of 91% for petroleum oils/solvents from simulated seawater, with the ability to sustain up to 20 cycles. The functionalized fabric also exhibited hydrophobic properties and high absorption capacity for petroleum oils and organic solvents, making it effective for practical oil/solvent recovery.
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
(2023)
Review
Polymer Science
A. Moulishwar Reddy, Balasubramanian Kandasubramanian, Sangram K. Rath
Summary: Cyanate Esters (CE) are promising materials with multifunctional properties that can meet the demands of diverse applications. They have numerous advantages such as low density, high dimensional stability, low moisture absorption, and high-temperature resistance. CE is widely used as a matrix material in composites, and can be blended with various thermosets and thermoplastics to achieve phenomenal properties.
Review
Polymer Science
Jigar Patadiya, Prajakta Vilas Chougale, Minoo Naebe, Balasubramanian Kandasubramanian, Pallavi Mahajan-Tatpate
Summary: The exceptional mechanical properties of aramid fibers make them a popular choice for high-performance materials, but their potential is limited due to their surface properties and interfacial bonding strength. Supercritical carbon dioxide (scCO(2) )-assisted techniques show great potential in enhancing the surface modification of aramid fibers with functional groups and nanoparticles. This article reviews the advancements and challenges in using scCO(2)-assisted techniques for aramid fiber modification and explores the future prospects of this technology.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2023)
Article
Polymer Science
Navya Clement, Balasubramanian Kandasubramanian
Summary: Ionogels are a type of soft, conducting materials with high ionic conductivity and wide operating temperature range. This article presents an overview of ionogels, including their classification, preparation, 3D printing techniques for printing ionogels, and the properties of sensors made from ionogels. The influence of different poly ionic liquids (PIL) on the properties of ionogels formed through various 3D printing methods is also discussed.
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2023)
Review
Polymer Science
C. S. Anju, Balasubramanian Kandasubramanian
Summary: This article introduces a hydrogel-based flexible battery to address environmental pollution caused by rigid synthetic polymers. The battery has excellent flexibility and superior electrochemical performance, making it a rapidly evolving research field.
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(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)
