Article
Multidisciplinary Sciences
W. A. Abu-raia, D. A. Aloraini, S. A. El-Khateeb, Aly Saeed
Summary: Research and development on new materials for optical filters is ongoing. This study prepared a bandpass filter using a glass doped with different concentrations of NiO. The glass showed amorphous essence in X-ray diffraction patterns and had high thermal stability. The Ni ions in the glass played a role as a network modifier, and the filter exhibited excellent electrical and optical performance.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Ceramics
Junwei Liu, Xin Wei, Yongfu Lian, Qiaoli Liu, Xingzu Xu, Dayong Lu
Summary: The structures and dielectric properties of Sr-modified Cu/Nb co-doped BaTiO3 ceramics were studied, showing changes in dielectric constant with Sr content at different frequencies, as well as the presence of dielectric relaxation and the influence of inhomogeneous structures in low temperature ranges.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Condensed Matter
Kassa Belachew, Cherupally Laxmikanth, Lemessa Fekede, S. P. Tiwari, Leta Tesfaye Jule, Habtamu Fekadu Etefa, Vinod Kumar
Summary: The study investigated the preparation and characterization of glasses with different concentrations of manganese oxide using the melt quenching technique. The results showed that the stability of the glasses improved with increasing MnO content. Various analysis methods were used to confirm the nature of the fabricated glasses and the exchange of Mn2+ into Mn3+ ions.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Multidisciplinary Sciences
Eman O. O. Taha, Aly Saeed
Summary: A host glass network consisting of 70B(2)O(3)-10Pb(3)O(4)-18ZnO-2Er(2)O(3) (ErCoCu1) was studied with the addition of 1 mol% of Co or/and Cu ions. The presence of Co or/and Cu ions was found to affect the structure, thermal, optical, and green emission properties of the glass. The results indicated that the addition of Co or/and Cu ions affected the compactness of the glass network and caused structural changes in the borate units.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
N. Sivasankara Reddy, B. Sujatha, R. Venkatesh, G. Chandrashekaraiah, B. P. Siddalingeshwara, P. Shankar, K. Murali, C. Narayana Reddy, A. Jayasheelan
Summary: In this study, the electrical conductivity and dielectric properties of xLi(2)SO(4)-30Li(2)O-(70-x)[0.70P(2)O(5):0.30V(2)O(5)] glasses with different molar percentages were investigated. Li2O was found to modify the glass structure and enhance the mobility of Li+ ions. The experimental results also indicated the presence of a single ion transport mechanism in these glasses.
Article
Materials Science, Ceramics
T. V. N. Keerti Kut, Sara Marijan, Jana Pisk, A. Venkata Sekhar, A. Siva Sesha Reddy, N. Venkatramaiah, G. Naga Raju, L. Pavic, N. Veeraiah
Summary: Glasses doped with different contents of Ag2O were fabricated and subjected to heat-treatment. The results showed increased connectivity of the glass network with increasing Ag2O content. The glass exhibited changes in dielectric parameters and relaxation properties as a function of Ag2O content. The presence of red lead was found to hinder the conductivity in the fast ion conducting glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
A. Y. Yassin
Summary: By blending LiClO4 filler with PVA/PVP host matrix, the structural, thermal, and dielectric properties of the prepared composite material were improved, making it suitable for manufacturing lithium polymer batteries and high-performance energy storage devices.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Ceramics
Chandresh Kumari, Sandeep Chhoker, Pankaj Sharma
Summary: Chalcogenides glasses Ge17Sb8Se75-xErx were synthesized with different compositions x = 0, 0.4, 0.8, 1.0 using the conventional melt quenching technique. The dielectric and ac conductivity of these glasses were studied in the temperature range of 300-334 K and frequency range of 5 kHz-20 kHz. The results showed that the dielectric constant exhibited orientation polarization. The dielectric loss variations were explained by conduction loss and single polaron hopping of charge carriers based on the Elliot and Shimakawa theory. The compositional variation in the dielectric parameters and conduction mechanism was also explored.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Engineering, Electrical & Electronic
Vandna Tomar, Raghvendra Pandey, Prabhakar Singh
Summary: In this study, the formation of tellurite glass system was investigated without using external network formers or modifiers, and the impact of different quenching-cooling media on the resulting glass samples was analyzed. It was found that the samples exhibited varying crystalline and amorphous structures depending on the quenching media used. The study also explored the structural, thermal, optical, and electrical properties of the samples, revealing insights into the physical behavior of the tellurite glass system.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Subir Kumar Patla, Pulak Pal, Aswini Ghosh
Summary: We studied the ion transport and segmental dynamics in solid polymer electrolytes based on poly(ethylene oxide) (PEO) and sodium tetrafluoroborate (NaBF4) salt. The molecular weight of PEO polymer matrix was varied while keeping the salt concentration fixed. The ionic conductivity showed correlation with glass transition temperature, crystallinity, and ion diffusion coefficient. AC conductivity spectra were analyzed using a universal power law model, except for the low frequency region where electrode polarization dominated. The temperature dependence of ionic conductivity and hopping frequency followed the Vogel-Tammann-Fulcher (VTF) relation, indicating coupling between ion transport and polymer chain dynamics. The ion transport in PEO based polymer electrolytes with higher molecular weight was found to be more cooperative.
SOLID STATE IONICS
(2023)
Article
Polymer Science
S. Soreto Teixeira, Nuno Gama, Teresa Cordeiro, A. Barros-Timmons, Madalena Dionisio, Manuel P. F. Graca, L. Cadillon Costa
Summary: Composites of LiFe5O8 (LFO) particles dispersed in PLLA were prepared by solvent casting, showing a decrease in crystallinity with increasing LFO content, good dispersion of LFO particles, and no interaction with the polymeric matrix. Impedance spectroscopy revealed dynamic relaxation processes at lower LFO content, while conductivity dominated at higher concentrations following the percolation law. Applications can vary depending on LFO content, with energy storage for low concentrations and electromagnetic radiation shielding for concentrations above the percolation threshold.
Article
Chemistry, Physical
Yangyang Wang
Summary: The derivative of real permittivity of ionic liquids gradually broadens at low frequencies near the glass transition, indicating a direct connection between relaxation time distribution and barrier distribution. While the random barrier model's overall prediction for ac conduction is insensitive to the distribution of activation energy, the fine features of the derivative spectra contain additional information about the energy landscape.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
T. Altalhi, A. A. Gobouri, Laila M. Al-Harbi, Moamen S. Refat, M. M. El-Nahass, A. M. Hassanien, A. A. Atta, Emad M. A. Ahmed
Summary: The study investigated the structure, diffuse reflectance spectroscopy, dielectric relaxation processes, and electrical conduction mechanism of zirconium (IV) dioxide. Various techniques were used to analyze the compound's properties and it was found to exhibit different electrical characteristics under different conditions.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Physics, Multidisciplinary
Birampally Kalyani, Navaneetha Pujari, Avula Edukondalu, M. Srinivasa Reddy, C. P. Vardhani
Summary: New Li2O-based oxide glasses containing heavy metal oxide in the PbO-As2O3-B2O3-Li2O quaternary system were prepared and analyzed using impedance spectroscopy and the Cole-Cole impedance reaction method. The AC conductivity of the glasses was studied in the frequency range of 100 Hz to 1 MHz, and the dielectric constant and dielectric loss were investigated as functions of temperature. The presence of PbO was found to decrease the DC conductivity and increase the energy of activation, possibly due to reduced charge fraction on the oxygen atoms and the presence of a lone electron pair in the lead atom, which hinder the passage of lithium ions.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Engineering, Electrical & Electronic
K. Iben Nassar, M. Slimi, N. Rammeh, S. Soreto Teixeira, M. P. F. Graca
Summary: In this paper, impedance spectroscopy, modulus analysis, AC electrical conductivity, and dielectric properties of the double perovskite compound SrAgNiMnO6 have been studied. The material exhibits semiconductor characteristics and shows relaxation phenomena in its dielectric properties. These findings suggest that this compound has important electrical and dielectric properties for potential technological applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Arijeta Bafti, Marko Rukavina, Vilko Mandic, Ivana Panzic, Luka Pavic, Andraz Krajnc, Janez Volavsek
Summary: In this study, we investigated the changes in chemical and structural properties of geopolymers during curing at different temperatures. We specifically focused on geopolymers prepared with a mullite-based precursor obtained through sol-gel synthesis. By analyzing the Si-to-Al ratio in the precursors and the curing temperatures, we identified factors affecting geopolymerisation. Our characterization techniques included diffraction, vibrational spectroscopy, electron microscopy, and impedance spectroscopy. We also used solid-state magic angle spinning nuclear magnetic resonance to study the evolution of the geopolymer system as a function of curing temperature. Our findings provide insights into the optimal geopolymerisation conditions and the potential application of geopolymers in photovoltaic facade systems.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
A. Ibrahim, K. Kubo, S. Watanabe, S. Shiba, I. Khan, B. Zhang, Z. Homonnay, E. Kuzmann, Luka Pavi, Ana Santi, Ahmed S. Ali, M. Y. Hassaan, S. Kubuki
Summary: This study systematically investigated the relationship between the local structure, electrical conductivity, and cathode performance of novel vanadate formulations for sodium-ion batteries. The results show that the introduction of Na2O together with Fe2O3 or SnO2 increases the conductivity and durability of the material, making them promising cathode active materials for high-performance batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Andreja Zuzic, Luka Pavic, Arijeta Bafti, Sara Marijan, Jelena Macan, Andreja Gajovic
Summary: The influence of A-site cation doping, crystal structure, and structural defects on the electrical conductivity of Sr-doped CaMnO3 and BaMnO3 was investigated. The results showed that the increase in electrical conductivity in Sr-doped CaMnO3 was primarily caused by the increase in Sr content, while the highest conductivities were obtained for the undoped BaMnO3 samples due to the more pronounced oxygen nonstoichiometry. The electrical conductivities of Sr-doped CaMnO3 were significantly higher than those of BaMnO3, indicating the potential for Sr-doped CaMnO3 to be used as a low-cost cathode material in solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Josipa Sarjanovic, Martina Stojic, Mirta Rubcic, Luka Pavic, Jana Pisk
Summary: Molybdenum coordination complexes with biological and pharmacological potential and good catalytic performance were synthesized using a hydrazone Schiff-base tetradentate ligand. The structures of the ligands and complexes were determined by spectroscopic methods and X-ray diffraction. The electrical properties of the complexes were examined using impedance spectroscopy.
Article
Materials Science, Multidisciplinary
G. Naga Koti Reddy, A. Venkata Sekhar, L. Pavic, A. Bafti, Jana Pisk, A. Siva Sesha Reddy, N. Venkatramaiah, G. Naga Raju, V. Ravi Kumar, N. Veeraiah
Summary: Zinc selenium phosphate glasses doped with Au2O3 were prepared and characterized. The presence of Au2O3 led to the formation of Au-2(SeO3)(3) crystal phase and Au-0 metallic particles in the glasses. The addition of Au2O3 improved the glass network structure and reduced the concentration of Au-0 metallic particles. The dielectric parameters showed a decreasing trend, while the dielectric breakdown strength and impedance significantly increased with the increase in Au2O3 concentration. These findings suggest that Au2O3 can enhance the insulating strength of the ZnO- added SeO2-P2O5 glasses, making them suitable for use as insulating layers in display panel devices.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Ceramics
V. Suryanarayana, A. Venkata Sekhar, A. Bafti, L. Pavic, A. Siva Sesha Reddy, G. Naga Koti Reddy, N. Venkatramaiah, V. Ravi Kumar, N. Veeraiah
Summary: In this study, As2O3 glasses were prepared with the addition of SeO2 and TeO2 chalcogenide oxides and different contents of Ag2O, and then heat-treated. Characterization results showed the presence of Ag3AsO4 crystals and Ag0 metallic particles in the glasses. It was observed that the dielectric constant, electric modulus, electrical impedance, and a.c. conductivity decreased with increasing Ag2O content up to 0.5 mol%, and increased beyond 0.5 mol%. The variation of the electrical conductivity with Ag2O content was analyzed using different conduction mechanisms. Overall, it is predicted that Ag2O content greater than 0.5 mol% is preferable for achieving better ionic conductivity in these glasses.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Analytical
Pilli Pavani Koteswari Devi, Ayyagari Venkata Sekhar, Valluri Ravi Kumar, Gnanamuthu Sahaya Baskaran, Nutalapati Venkatramaiah, Vandana Ravi Kumar, Nalluri Veeraiah
Summary: Li2O-HfO2-SiO2-Tm2O3:Au2O3 glass samples with fixed Tm2O3 content and varying Au2O3 concentration were prepared and characterized. The influence of Au-0 metallic particles on the blue emission of Tm3+ ions was investigated. Optical absorption spectra revealed multiple bands excited from the H-3(6) level of Tm3+ ions, and a broad peak in the 500-600 nm range due to surface plasmon resonance of Au-0 metallic particles. Photoluminescence spectra of Tm3+ and Au2O3 co-doped glasses showed intense blue emission, which increased with higher Au2O3 content. The enhancement of blue emission by Au-0 metallic particles was discussed in detail using kinetic rate equations.
Article
Chemistry, Analytical
Yeti Dana Rao, Ayyagari Venkata Sekhar, Vandana Ravi Kumar, Valluri Ravi Kumar, Nutalapati Venkatramaiah, Nalluri Purnachand, Yerramreddy Gandhi, Nalluri Veeraiah
Summary: In this study, a glass system based on heavy metal oxides was prepared with Ho2O3, Er2O3, and Tm2O3 as dopants. The luminescence efficiencies and properties of the glass system were investigated, and it was found that Tm3+ doping resulted in the lowest disorder degree and was suitable for blue laser emission.
Article
Materials Science, Multidisciplinary
Gade Naga Koti Reddy, Marek Kostrzewa, Ayyagari Venkata Sekhar, Adam Ingram, Annapureddy Siva Sesha Reddy, Nutalapati Venkatramaiah, Goli Naga Raju, Vandana Ravi Kumar, Nalluri Veeraiah
Summary: This study investigates the dielectric properties of ZnO-P2O5-SeO2 glass ceramics with varying concentrations of Ag2O. Structural analysis reveals the presence of Ag3PO4, Ag2SeO3, and Zn-3(PO4)(2) phases along with Ag+ ions and Ag-0 particles. The results show that the optimal concentration of Ag2O for these glass ceramics as solid electrolytes is 0.6 mol%. Above this concentration, polaronic conductivity is observed, making them suitable candidates for electrodes in ionic batteries.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
D. Bhadrarao, L. Pavic, A. Bafti, J. Pisk, A. Venkata Sekhar, G. Naga Koti Reddy, V. Ravi Kumar, G. Sahaya Baskaran, G. Naga Raju, N. Veeraiah
Summary: In this study, the dielectric properties of PBB glass ceramics doped with varying CuO concentrations were investigated. The structural analysis revealed the presence of anisotropic CuBi2O4 ferroelectric crystal phases in these glass ceramics. The study found that the CuO content affects the dielectric properties, and an appropriate CuO concentration can enhance the conductivity of the material.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Crystallography
Ahmed Ibrahim, Satoshi Watanabe, Marta Razum, Luka Pavic, Zoltan Homonnay, Erno Kuzmann, Mohamed Yousry Hassaan, Shiro Kubuki
Summary: This study investigates the relationship between the structure and electrical properties of a nanocrystalline composite ceramics xNa(2)O center dot (100 - x)V2O5. The addition of Na0.33V2O5 phase improves the structural and electrical properties of the material, enhancing its capacity as a cathode material in Na-ion batteries.
Article
Engineering, Electrical & Electronic
Y. Dana Rao, N. Venkatramaiah, A. Venkata Sekhar, N. Purnachand, V. Ravi Kumar, N. Veeraiah
Summary: This research investigates the influence of red lead content on the emission characteristics of Pr3+ ions in a nonconventional antimony silicate glass system. The results show that the intensity of red and NIR emission bands of Pr3+ ions significantly increases as the red lead content decreases.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
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)
