Article
Thermodynamics
He Liu, Jia'ao Liu, You Tian, Xuehong Wu, Zengyao Li
Summary: Pure silica aerogel has high transmittance at high temperature, so ceramic fibers with a diameter comparable to the wavelength of incident thermal radiation are introduced to reduce the radiative thermal conductivity. Aligning the fibers perpendicular to the incident radiation is the most effective way to minimize the radiative thermal conductivity, and the optimal fiber diameter decreases with increasing temperature. There exists an optimal mass fraction of doped fibers to achieve the minimized thermal conductivity due to the trade-off relationship between the conductive and radiative thermal conductivities.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Thermodynamics
He Liu, Jia'ao Liu, You Tian, Xuehong Wu, Zengyao Li
Summary: Silica aerogel is a promising material for thermal insulation applications due to its low thermal conductivity and density. To improve its performance, ceramic fibers are introduced into the pure silica aerogel. This study developed a theoretical model to investigate the thermal conductivity of fiber-reinforced aerogel composites at high temperature, considering the inclination angle, diameter, and mass fraction of the doped fibers.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Materials Science, Ceramics
Yudi Duan, Lijuan Wang, Shiyu Li, Xiaofei Liu, Jinsheng Liang, Jiachen Liu, Xinhui Duan, Hui Liu
Summary: In this study, superhydrophobic silica aerogels were synthesized at ambient pressure using TEOS as precursor. The addition of N-hexane in the solvent helped to modulate the pore microstructure, and its effect on the insulation properties of the samples was analyzed. It was discovered that the thermal conductivity of the samples reached the lowest value of 0.012 W/m.K when the volume ratio of N-hexane to TEOS was 1:2.24. The addition of N-hexane led to a decrease in density, an increase in the theoretical average pore size, and an increase in the total pore volume, due to the stronger and more heterogeneous cross-linking between the sol particles. The optimal thermal insulation performance was achieved when the combination of low density and perfect pore microstructure reduced both solid-phase and gas-phase heat transfer contributions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Polymer Science
Kyoung-Jin Lee, Jae Min Lee, Ki Sun Nam, Haejin Hwang
Summary: In this research, a spherical silica aerogel powder with hydrophobic surfaces was successfully synthesized through ambient pressure drying, utilizing solvent exchange and surface modification as key steps in the preparation process.
Article
Construction & Building Technology
Y. X. Chen, S. Sepahvand, F. Gauvin, K. Schollbach, H. J. H. Brouwers, Qingliang Yu
Summary: This study investigates a silica-cellulose composite aerogel made from olivine silica, which exhibits lower thermal conductivity and higher strength compared to traditional cellulose aerogel, showing promising potential as a high-performance insulation material.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Physical
Dongxuan Du, Fengqi Liu, Yonggang Jiang, Junzong Feng, Liangjun Li, Jian Feng
Summary: Research has shown that fiber-reinforced aerogel composites synthesized using water as a solvent demonstrate simplified synthesis process and excellent thermal-mechanical performance, making them a promising efficient and economical insulation material.
Article
Nanoscience & Nanotechnology
Lukai Wang, Junzong Feng, Yi Luo, Zhenhao Zhou, Yonggang Jiang, Xuanfeng Luo, Lin Xu, Liangjun Li, Jian Feng
Summary: The thermal-solidifying 3D printing strategy can be used to fabricate silica aerogels with complex architectures, exhibiting comparable performances to traditional aerogels and holding promise for custom design and industrial production of insulation materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Gabrijela Horvat, Tomaz Kotnik, Klara Zvab, Zeljko Knez, Zoran Novak, Sebastijan Kovacic
Summary: The ability to combine different material chemistries to obtain hybrids with a hierarchical architecture is an emerging trend in materials engineering. In this article, a one-pot synthesis strategy is reported for the production of co-continuous organic-inorganic macro-mesoporous hybrid materials. The resulting materials exhibit enhanced thermal and mechanical properties compared to traditional high-performance insulators.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Wei-Cheng Hung, Richard S. Horng, Rung-En Shia
Summary: A novel method of improving the skeletal structure of aerogels by reinforcing them with three layers of glass fiber and carbon fiber has been proposed in this study, resulting in aerogel composites with improved heat insulation performance; By investigating different ratios of glass/carbon fibers in the composites, a balance between thermal insulation performance and strength was achieved, providing a practical alternative for preparing robust and sustainable heat insulation aerogel composites.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
C. Bi, G. H. Tang, C. B. He, X. Yang, Y. Lu
Summary: This study proposes a method to measure the elastic modulus of silica aerogel using sound speed formulas and validates the accuracy of the fitting formula in different density ranges. The results also show that the glass fiber volume fraction has a significant impact on the elastic modulus of the aerogel composite, while the thermal conductivity is less affected.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Subramaniam Iswar, Sandra Galmarini, Luca Bonanomi, Jannis Wernery, Eleftheria Roumeli, Sudheera Nimalshantha, Avner M. Ben Ishai, Marco Lattuada, Matthias M. Koebel, Wim J. Malfait
Summary: This paper investigates the synthesis of silica aerogel granules using ambient pressure drying to enhance mechanical stiffness while maintaining low thermal conductivity. By optimizing aging and drying conditions, dense but superinsulating silica aerogels were produced, challenging traditional understanding of heat transport in aerogels.
Article
Materials Science, Textiles
Soumia Boukind, Said Sair, Hanane Ait Ousaleh, Said Mansouri, Mohamed Zahouily, Younes Abboud, Abdeslam El Bouari
Summary: This study presents a facile approach to develop super-insulating material based on silica aerogel reinforced with alfa nonwoven, using sol-gel process and vacuum compression molding. The results show that aerogel incorporation into the multiscale pores of the nonwoven improves the physical properties of the resulted composite and enhances hydrophobicity without affecting the low thermal conductivity.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Energy & Fuels
Lan Jiang, Xiaowu Hu, Guangbin Yi, Shikun Xiao, Yuqiong Xie, Bin Chen, Jue Wang, Zezong Zhang, Wenjing Chen, Qinglin Li, Xiongxin Jiang
Summary: This paper presents a method to prepare carbonized polydopamine (PDA)-modified silica aerogel-based shape-stable composite phase change materials (ss-PCMs) with enhanced thermal conductivity and photo-thermal conversion efficiency. The composite materials achieved the highest thermal cycling performance and photo-thermal conversion performance when the PDA coating was carbonized at 600 degrees C to form PEG/600CPS.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Ceramics
Chong Zhao, Yingkui Li, Wanggui Ye, Xiaofei Shen, Xuanyi Yuan, Chaoyang Ma, Yongge Cao
Summary: This study proposed a time-saving method for synthesizing thermal insulating hydrophobic silica aerogel powder, which combines two-step Sol-gel reaction with a fast drying process and optimizes every tiny synthetic component to obtain aerogel powder with excellent properties.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Engineering, Environmental
Zuzanna Kantor, Tingting Wu, Zhihui Zeng, Sabyasachi Gaan, Sandro Lehner, Milijana Jovic, Anne Bonnin, Zhengyuan Pan, Zahra Mazrouei-Sebdani, Dorina M. Opris, Matthias M. Koebel, Wim J. Malfait, Shanyu Zhao
Summary: Polymer aerogels are a promising alternative to brittle silica aerogels, but they lack high-temperature stability. Researchers have developed a new type of aerogel composite with unique structure and excellent properties, which could be used in applications requiring high mechanical strength, low thermal conductivity, and low dielectric constant.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Isuru S. Herath, Jingjie Yeo
Summary: When functionalized, tissue engineering scaffolds like silk fibroin can be used to create implantable devices for nerve tissue regeneration. By using deep reinforcement learning, we were able to design a small-molecule ligand with improved binding energy for integrin a5 beta 1, which is essential for creating devices that aid in nerve tissue repair.
Article
Mechanics
Danyang Wang, Xiaoyu Luo, Zishun Liu, Peter S. Stewart
Summary: This study investigates the stability of laminar high-Reynolds-number flow in a planar channel with a rigid wall and a heavy compliant wall under longitudinal tension. Numerical simulations reveal the presence of two unstable normal modes, namely the Tollmien-Schlichting (TS) mode and a surface-based mode known as flow-induced surface instabilities (FISI), specifically travelling wave flutter (TWF) and static divergence (SD). The system exhibits TWF instability when there is no wall damping, and SD instability when wall damping exceeds a critical value. The Reynolds-Orr analysis shows that both FISI are primarily driven by normal stress on the flexible wall, with the SD mode having negative activation energy and the upper-branch SD approaching zero activation energy for large wall damping. Additionally, the interaction between TS and TWF modes results in stable islands within unstable regions of parameter space for large wall mass.
JOURNAL OF FLUID MECHANICS
(2023)
Article
Materials Science, Biomaterials
Hanfeng Zhai, Jingjie Yeo
Summary: Biofilms pose significant problems for engineers in various fields, and effective biofilm control is a long-term goal. Adhesion and surface mechanics of biofilms are crucial for biofilm generation and removal. Customized nanosurfaces with different topologies can alter adhesive properties and greatly improve long-term biofilm control.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Shuai Xu, Zidi Zhou, Zishun Liu, Pradeep Sharma
Summary: In this study, we report a peculiar observation of concurrent stiffening and softening in hydrogels during the dehydration process. The scaling of mechanical behavior with water content, which is not captured by Flory's work, is observed in our experiments. Through coarse-grained molecular dynamics simulations, we elucidate the mechanisms underlying the odd softening-stiffening behavior during dehydration and propose a theoretical model to accurately represent the underlying physics and the divergence from Flory-based theories.
Article
Mechanics
Yiheng Xue, Zidi Zhou, Jincheng Lei, Zishun Liu
Summary: Shape memory hydrogel is a hydrogel that can transform between temporary and initial shape when exposed to external stimuli. In this paper, a constitutive model based on the transition between sparse and dense phases is proposed to describe the shape memory mechanism of water-triggered shape memory hydrogels. The accuracy of the proposed model is verified through finite element method simulations and experiments on different structures.
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
(2023)
Article
Polymer Science
Xinyue Zhang, Jinyue Dai, Max Tepermeister, Yue Deng, Jingjie Yeo, Meredith N. Silberstein
Summary: Ionically conductive polymers are often made from monomers with high polarity moieties to improve ion dissociation. However, their glass transition temperatures are relatively high, limiting their flexibility. By functionalizing polydimethylsiloxane (PDMS) with ligands that form labile coordination with metal ions, we enhance ion dissociation and significantly improve ionic conductivity. Through experimental studies and molecular dynamics simulations, we investigate the ion transport mechanisms in this low Tg material.
Article
Chemistry, Multidisciplinary
Victor Hernandez, Robert S. Jordan, Ian M. Hill, Bohao Xu, Chenxi Zhai, Di Wu, Hansong Lee, John Misiaszek, Kiana Shirzad, Miguel F. Martinez, Ahmet Kusoglu, Jingjie Yeo, Yue Wang
Summary: This article describes a design strategy for electronic materials using conducting polymers that can dynamically adapt to deformation rates. By utilizing interconnected nanoscopic core-shell micelles, the shells retain material integrity under strain while the cores control the extent of elongation, adapting to deformation rates. A prototype based on polyaniline showed significant increases in ultimate elongation and toughness at increasing deformation rates. This concept can be applied to create self-protective soft electronic materials with enhanced durability.
Article
Mechanics
Shuai Xu, Zishun Liu
Summary: Hydrogels are excellent soft materials with wide applications in areas such as biocompatible sensors and soft robots. However, traditional theories based on Flory's work fail to accurately describe the sensitivity of hydrogel swelling and mechanical behaviors to preparation conditions. In this study, we propose a constitutive theory based on statistical thermodynamics that can precisely predict the swelling ability of hydrogels under diverse preparation conditions and capture the phase transitions of temperature-sensitive hydrogels. The theoretical results provide insights into the underlying mechanisms of interesting hydrogel behaviors, such as inhomogeneous deformation-induced solvent migration and delayed fracture.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2023)
Article
Mechanics
Hanfeng Zhai, Jingjie Yeo
Summary: The fracture mechanism of graphene under thermal gradients was studied using non-equilibrium molecular dynamics. The study found that there is no clear relationship between the temperature gradients and fracture stresses or crack propagation dynamics. Additionally, strain-hardening effects were observed for small initial defects, which can be explained as the blunting effect observed in porous graphene. This research is expected to inspire further exploration of non-equilibrium dynamics in graphene with practical applications in engineering fields.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2023)
Article
Materials Science, Multidisciplinary
M. H. Sebaq, Zishun Liu
Summary: This paper proposes novel unit cells that can be arranged periodically constructing disparate auxetic metamaterials with negative Poisson's ratio for engineering applications. The two-dimensional auxetic unit cells are designed utilizing the mathematical model of the modified Solid Isotropic Material with Penalization (SIMP) topological optimization method. Three structures with optimum auxetic designs are chosen to verify the modified SIMP method using numerical simulation. The results showed a significant impact of negative Poisson's ratio on the considered dynamic properties of the auxetic structures.
INTERNATIONAL JOURNAL OF COMPUTATIONAL MATERIALS SCIENCE AND ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Tianjiao Li, Chenxi Tian, Atieh Moridi, Jingjie Yeo
Summary: Ti-Al-based materials have attracted significant interest in engineering fields due to their remarkable mechanical and chemical properties. However, additive manufacturing and heat treatment of Ti-Al alloys often result in brittleness and defect formation. This study investigates the interfacial dynamics of Ti-Al systems, focusing on the behavior of Ti and Al atoms in the presence of TiAl3 grain boundaries under experimental heat treatment conditions. Molecular dynamics and Markov state modeling techniques reveal the diffusion mechanism and spatial distribution of Al atoms during the formation of TiAl3, providing insights for controlling and optimizing manufacturing processes of these high-performing materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Biomedical
Hanfeng Zhai, Jingjie Yeo
Summary: Designing customizable engineered porous materials for controllable biofilm transportation properties can improve the applications of biofilms in pollution alleviation, material self-healing, and energy production. We use Bayesian optimization and individual-based modeling to optimize the designs, and find that Bayesian optimization is more efficient than the traditional grid search method. Comparison study shows that porous materials can enhance biofilm growth and transportability.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jianying Hu, Han Li, Jianke Du, Zishun Liu, Erasmo Carrera
Summary: In this study, a new finite element approach was developed to simulate the large deformation of magneto-thermal sensitive hydrogels-based composite structures. The model was verified through numerical experiments and demonstrated its capability in explaining complex physical phenomena. The results provide a deeper understanding of the mechanical mechanism of magneto-thermal sensitive hydrogels and have important implications for their potential applications in tissue engineering and other fields.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Multidisciplinary Sciences
Weixuan Xu, Shuangyan Lang, Kaiyang Wang, Rui Zeng, Huiqi Li, Xinran Feng, Mihail R. Krumov, Seong-Min Bak, Christopher J. Pollock, Jingjie Yeo, Yonghua Du, Hector D. Abruna
Summary: This study comprehensively investigates the catalytic mechanisms of a cobalt single-atom electrocatalyst on the redox processes of lithium-sulfur batteries using operando techniques. Real-time observations reveal that the electrocatalyst efficiently accelerates the lithium-sulfur reactions with zero-order kinetics. Under galvanostatic discharge conditions, the catalysis transforms the typical stepwise mechanism of the reactions to a concurrent pathway. Additionally, operando XAS studies elucidate the potential-dependent evolution of cobalt's oxidation state and the formation of cobalt-sulfur bonds.
Review
Chemistry, Multidisciplinary
Kaiyang Wang, Haoyuan Shi, Tianjiao Li, Liming Zhao, Hanfeng Zhai, Deepa Korani, Jingjie Yeo
Summary: Solid polymer electrolytes (SPEs) offer a safer alternative for battery electrolytes, but face design challenges. This review highlights the applications of machine learning alongside theory-based models to improve SPE design.
Article
Materials Science, Ceramics
Deniz Bozoglu, Sahin Yakut, Kemal Ulutas, Deniz Deger
Summary: Thin film polyethylene oxide, produced by the thermal evaporation technique, exhibits structural and property differences compared to bulk polyethylene oxide. The dielectric constant of polyethylene oxide thin film is 10 times greater than that of bulk polyethylene oxide. There is consistency among dielectric constants, activation energies, and free volume fractions for both thin film and bulk samples. Polyethylene oxide thin film is observed to be more brittle than bulk polyethylene oxide.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Xiaozhen Fan, Zhuo Wang, Zheng Fang, Huiqun Ye, Jinju Zheng, Jianqiang Zhang, Yanjun Qin, Yao Zhai, Yanlong Miao, Zixiang Zhao, Can Yang, Jiajun He, Zhenghang Wei, Yunzhang Fang
Summary: The microscopic strain evolution and microstructural of FeCuNbSiB amorphous alloy samples were studied under both free and tensile stress annealing conditions. It was found that an amorphous-nanocrystalline structure was developed in both samples after annealing at 813 K, and the size of nanocrystals was limited by the applied stress.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Atsushi Tanaka, Atsuki Saito, Takashi Murata, Ayako Nakata, Tsuyoshi Miyazaki
Summary: Although molecular dynamics (MD) simulation is a powerful tool for investigating the atomic-scale structures of complex materials, its reliable and accurate application to multi-component glass systems faces challenges due to limited force fields (FFs) and the complexity of chemical environments. This study demonstrates the feasibility of efficient and accurate large-scale density functional theory (DFT) calculations for multi-component glass systems. The evaluation of classical FFs based on the results of large-scale DFT calculations reveals low accuracy for non-bridging oxygen atoms, and differences in Si-O-Si angle distribution and electronic structure for X = Mg.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Petr Shvets, Ksenia Maksimova, Aleksandr Goikhman
Summary: In this study, vanadium oxide xerogel samples were successfully synthesized through a liquid phase reaction and the interaction of films with water. The samples were thoroughly analyzed using X-ray diffraction and Raman spectroscopy, revealing the existence of two distinct phases. It was also discovered that previous misinterpretations regarding the high-pressure polymorph structure were due to the formation of a high-temperature phase. These findings highlight the potential for further refining and expanding the current structural models of vanadium oxide xerogel in future research efforts.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Yiran Zhang, Jing Pang, Qingchun Xiang, Dong Yang, Yinglei Ren, Xiaoyu Li, Keqiang Qiu
Summary: The effect of the volume fraction of body-centered cubic (BCC) crystal on the room temperature brittleness of Fe-based amorphous nanocrystalline alloys was investigated. Molecular dynamics simulations were conducted to obtain seven model samples with different embedded BCC nanocrystal contents. The results showed a gradient decrease in the plasticity of the alloys with different nanocrystal contents.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Moustafa Sahnoune Chaouche, Hani K. Al-Mohair, Shavan Askar, Barno Sayfutdinovna Abdullaeva, Naseer Ali Hussien, Ahmed Hussien Alawadi
Summary: In this work, a novel micromechanical data-driven machine learning framework was proposed to characterize material parameters in bulk metallic glasses. The framework utilized nanoindentation simulations with Berkovich and spherical tips to compile a vast collection of data on material behavior in BMGs. The developed machine learning model efficiently predicted critical material properties and highlighted the importance of input feature weight functions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Louisiane Verger, Vinuyan Ganesaratnam, Virginie Nazabal, Sebastien Chenu, Christophe Calers, David Le Coq, Laurent Calvez, Olivier Hernandez, Xiang-Hua Zhang
Summary: Crystallization in Ga, Sb, and Se glasses was studied, and a correlation between Se content, crystalline phases, and electrical conductivity was observed. The resulting glass-ceramics exhibited significantly higher conductivity compared to other Se-based glass-ceramics.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Seong-Sik Shin, Ga-Yeong Kim, Byeonggwan Lee, Jae-Hwan Yang, Yeon-Su Son, Jung-Hoon Choi, Jae-Young Pyo, Ki Rak Lee, Hwan-Seo Park, Hyun Woo Kang
Summary: In this study, silver tungstate-tellurite glass with different loading of AgI was developed for immobilization of radioactive iodine. The effects of increasing the amount of AgI on the glass matrix were investigated. The leaching properties of all samples were evaluated, and it was found that the release of all elements satisfied the US regulation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Chunghee Nam
Summary: This study demonstrates the prediction performance of a CNN regression model for the magnetic entropy changes and transition temperatures of bulk metallic glasses with magnetocaloric effects. The model achieved high prediction performance, as measured by the determination coefficient and root mean square error. The results showed good agreement with experimental values and reported results.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
A. Hosny, Y. M. Moustafa, G. El-Damrawi
Summary: In this study, crystalline glass ceramics were obtained directly from glasses using an ion exchange process between lead bromide and oxygen ions. The addition of lead bromide caused significant changes in the glass structure and the formation of specific crystalline phases.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Luana Cristina Feitosa Alves, Jheimison Ferreira Gomes, Natacya Fontes Dantas, Maria Nayane Queiroz, Pablo Nabuco Portes, Francielle Sato, Nilma de Souza Fernandes, Karina Miyuki, Celso Vataru Nakamura, Alysson Steimacher, Franciana Pedrochi
Summary: This study evaluated the influence of CaF2 addition on the bioactivity of the samples. The results showed that the samples exhibited good bioactivity and cytocompatibility, making them suitable for biomedical applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
N. Keninger, S. Feller
Summary: The principles of Topological Constraint Theory (TCT) were used to study alkali borate and silicate glass systems. Structural models were developed based on experimental data and used to predict properties of the glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Hao Wang, Chengliang Zhao, Chuntao Chang, Shengli Zhu, Zhankui Zhao
Summary: The relationship between the heterogeneous structure and structural relaxation in metallic glasses was explored by investigating the quasielastic and viscoelastic behavior of a Zr55Cu30Ni5Al10 metallic glass. Stress-annealing treatment was used to retain elastic strain energy, and a unique creep recovery phenomenon was observed during the reheating process. The Maxwell model was employed to qualitatively describe the mechanisms of elastic strain energy retention and release.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Sihyung Lee, Giyeol Han, Karuppasamy Pandian Marimuthu, Hyungyil Lee
Summary: This study presents a method for extracting FVM parameters of Zr-based TFMG using MD and FEA, and validates the method through simulation and experiments.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Nedra Saad, Mohamed Haouari, Mayssa Ibrahim, Noura Amamou
Summary: In this work, we investigated the optical properties of a fluorophosphate glass system doped with Tb3+ and Eu3+ ions. We found that the emitted light can be tuned by changing the doping concentration, excitation wavelength, or excitation power, which is important for the design of solid-state lighting sources.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
