Article
Materials Science, Ceramics
Rasmus R. Petersen, Jakob Konig, Niels Iversen, Martin B. Ostergaard, Yuanzheng Yue
Summary: In this study, cathode ray tube (CRT) panel glass was processed into glass foams using carbon and Mn3O4 as foaming agents. The foaming ability and mechanism were investigated by adjusting the composition and temperature. The reaction between carbon and Mn3O4 was found to be the main source of melt expansion, with CO2 as the main gaseous product during foaming process. The study also revealed that carbon load significantly affects the foaming process, with low carbon load suitable for achieving low density foams with closed pores.
CERAMICS INTERNATIONAL
(2021)
Article
Physics, Applied
Biwei Meng, Yunliang Ma, Xinhua Wang, Chao Yuan
Summary: We present an approach combining multiple probe wavelengths' nanosecond transient thermoreflectance technique with a transient temperature rise model to study the linear relation between reflectance change and temperature change. This method enables fast and accurate determination of the temperature range and the thermoreflectance coefficient. Our findings show that the linear relationships of commonly used metal transducers may become nonlinear at elevated temperatures. This method provides a reliable platform to characterize thermoreflectance properties and understand the mechanism of thermoreflectance linear relationship.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Thermodynamics
V. C. Midhun, S. Suresh, B. Praveen, R. Neethikumar, K. S. Rajesh
Summary: In this study, bleached and unbleached micro/nanocellulose crystals (MNCC) were successfully extracted from raw banana fiber and integrated with silica-based Vacuum Insulation Panel (VIP) core as a filler material. Structural, chemical, and thermal properties of both types of MNCC were characterized, with the result showing that bleached MNCC extract exhibited better thermal conductivity for VIP applications. The effect of bleaching process on MNCC extraction was observed in particle size, crystallinity index, thermal diffusivity, and thermal conductivity.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
Article
Multidisciplinary Sciences
Navaneetha K. Ravichandran, David Broido
Summary: Selection rules have a significant impact on three-phonon scattering in certain compounds, revealing anomalous behavior in the pressure and temperature dependence of thermal conductivities. Boron phosphide shows sharp initial rise and peak-drop patterns in thermal conductivity with pressure, contrasting with the behavior of many solids, and these findings motivate further experimental efforts.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Geological
P. J. Vardon, J. Peuchen
Summary: This study presents correlations between cone penetration tests and thermal properties of saturated ground, which significantly reduce the time needed to obtain thermal properties of soils. The correlations show good agreement with laboratory tests and various soil types, but empirical adjustments are required for certain types of soils.
Article
Thermodynamics
Akos Lakatos, Attila Csik, Istvan Csarnovics
Summary: This paper presents research results on the performance of aerogel materials in terms of thermal conductivity, specific heat, and combustion heat, providing important references for designers and researchers. The study found that temperature and external load significantly affect thermal conductivity, while thickness variations have minor impacts. Additionally, the combustion heat of aerogel was measured and investigated before and after combustion using advanced microscopy techniques.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Environmental Sciences
Hamdy A. Abdel-Gawwad, Mona S. Mohammed, Mohammed A. Arif, Hamada Shoukry
Summary: This study demonstrates the sustainable consumption of lead glass sludge in the fabrication of thermally insulating foamed glass, with in-depth investigations into the impact of additives on foaming efficiency and Pb-stabilization. The newly developed foamed materials exhibit lower thermal conductivity, higher porosity, and reasonable compressive strength. The major innovation lies in the significantly reduced thermal conductivity and improved Pb-immobilization efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Marco Steinhardt, Elisabeth Irene Gillich, Alexander Rheinfeld, Ludwig Kraft, Markus Spielbauer, Oliver Bohlen, Andreas Jossen
Summary: This study presents a simple yet precise measurement method for determining the specific heat capacity and thermal conductivity of lithium-ion cells, utilizing computed tomography scans and finite element models. The results show that temperature has a significant impact on specific heat capacity, while state of charge (SOC) has minimal effect, and thermal conductivity is greatly influenced by SOC.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Ove Andersson, Paulo H. B. Brant Carvalho, Ulrich Haussermann, Ying-Jui Hsu
Summary: The glass transitions (GTs) were studied in different samples and with different guest molecules. The results show that the GTs are associated with the water network and deuteration leads to an increase in the glass transition temperature.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Yinying Zhang, Zhongrui Li, Ctirad Uher
Summary: Recent studies on Co3Sn2S2 have mainly focused on its electrical and magnetic properties as a Weyl semimetal, half metal, and anisotropic ferromagnet. This study investigates the low-temperature thermal characteristics of Fe-doped Co3Sn2S2, including heat capacity, Seebeck coefficient, and thermal conductivity. The results show that Fe-doping affects the Debye temperature and density of states at the Fermi level, as well as increases the Seebeck coefficient and suppresses the thermal conductivity. The study also explores the influence of an external magnetic field on the Seebeck coefficient and thermal conductivity of pristine Co3Sn2S2.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Thermodynamics
Thiwanka Arepolage, Christophe Verdy, Thibaut Sylvestre, Aymeric Leray, Sebastien Euphrasie
Summary: This study developed two thermal concentrators, one with a 2D design of uniform thickness and another with a 3D design, using the coordinate transformation technique and metamaterials. By structuring the thermal conductor, the desired local density-heat capacity product and anisotropic thermal conductivities were achieved. The homogenized thermal conductivities were obtained from finite element simulations and cylindrical symmetry consideration. A 3D concentrator was fabricated using 3D metal printing and characterized using a thermal camera. Compared to devices that solely consider anisotropic conductivities, the time evolution characteristics of the metadevice designed with coordinate transformation were closer to those of an ideal concentrator.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Construction & Building Technology
Dilan Polat, Mustafa Guden
Summary: Geopolymer foams were prepared using fine and coarse waste glass powders with an activation solution of NaOH and Na2SiO3. The effects of different factors on the expansion and temperature behavior of the slurries were investigated, as well as the compression strengths and thermal conductivities of the resulting foams. Increasing foam density led to higher compressive strength and thermal conductivity, with sintering at too high temperatures resulting in reduced foam density.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Imtiaz Ali Shah, Sardar Bilal, Ali Akgul, Merve Tastan Tekin, Thongchai Botmart, Heba Y. Zahran, Ibrahim S. Yahia
Summary: The prime motive of this study is to investigate the dispersion characteristics of single wall carbon nanotubes in water-based hybrid nanoliquid. An innovative thermal conductance model is developed considering factors such as nanolayer formation and particle size. The study addresses the fluid transport mechanism, heat and mass transport mechanism, and the porous walls of the channels. The results are obtained through mathematical simulations and computational analysis, and are compared with existing studies.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Xiulan He, Tai Jin, Shilong Wang, Ling Li
Summary: Aluminum nitride ceramics were prepared through aqueous gelcasting and pressureless sintering using Y2O3 as additives and curdlan as the gel system. The effects of curdlan content, solid content, Y2O3 content, and sintering soaking time on the microstructure and properties of the ceramics were investigated. Suitable curdlan and solid content contributed to uniform microstructures and high flexural strength of the green bodies. Increasing Y2O3 content and soaking time resulted in enhanced relative density and flexural strength of the sintered bodies. The optimized gelcasting process parameters, Y2O3 content, and soaking time improved the mechanical and thermal properties of the sintered bodies. The nontoxic gelcasting system showed potential for the fabrication of complex-shaped ceramics.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Physical
Marco Steinhardt, Jorge V. Barreras, Haijun Ruan, Billy Wu, Gregory J. Offer, Andreas Jossen
Summary: Scenarios involving rapid energy conversion in lithium-ion batteries are becoming more relevant. This study emphasizes the importance of thermal models in battery system design and operation, as temperature greatly influences battery performance, safety, and lifespan. The paper provides a comprehensive review of experimental results, presenting median values and uncertainties for specific heat capacity and thermal conductivity. Gaps in knowledge and research needs are identified, highlighting inconsistencies in specific heat capacity and poor study of thermal conductivity's dependence on battery states.
JOURNAL OF POWER SOURCES
(2022)
Article
Thermodynamics
Daniel Leiria, Hicham Johra, Anna Marszal-Pomianowska, Michal Zbigniew Pomianowski
Summary: This article introduces a new methodology to disaggregate the energy demand for space heating and domestic hot water production from single hourly smart heat meters in Denmark. The new approach can be easily applied to different building types without detailed knowledge about the dwellings and occupants. The paper presents and compares various algorithms to separate and estimate the space heating and domestic hot water demand. The validation using a dataset of 28 Danish apartments shows that the best method to identify data points related to domestic hot water production events is the maximum peaks approach. The combination of a Kalman filter and Support Vector Regression is found to be the best algorithm to estimate the space heating and domestic hot water demand separately, outperforming the current Danish compliances.
Article
Materials Science, Ceramics
Uros Hribar, Martin Bonderup Ostergaard, Niels Iversen, Matjaz Spreitzer, Jakob Konig
Summary: In this study, a foaming mixture of waste cathode ray tube panel glass and water glass was investigated for its expansion and gas evolution behavior. The presence of a significant amount of CO2 during the heating process and its overwhelming presence within the pores of the foamed glass were confirmed. The underlying foaming mechanism, where a carbonate phase acts as the foaming agent, was unveiled. This discovery could contribute to further research in the field of foamed glass and lead to the production of more sustainable materials with better performance through less energy-demanding processes.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Chemistry, Physical
Zhimin Chen, Tao Du, Soren S. Sorensen, Rasmus Christensen, Qi Zhang, Lars R. Jensen, Oxana V. Magdysyuk, Maria Diaz-Lopez, Mathieu Bauchy, Yuanzheng Yue, Morten M. Smedskjaer
Summary: This study investigates the structural origins and property variations of lithium borophosphate glass electrolytes using experimental and simulation techniques. The research finds that the fracture toughness and ionic conductivity of the electrolytes are influenced by boron bonding and the lithium-ion migration is affected by medium-range order structure.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Benjamin H. Christensen, Francesca Deganello, Valeria La Parola, Mads K. Jorgensen, Vittorio Boffa, Martin B. ostergaard
Summary: Perovskite-type LaCo1-xNixO3-delta powders (x = 0, 0.2, 0.4, 0.6, and 0.8) were synthesized and characterized for their crystal structure, morphology, texture, and surface properties. The catalytic performance of these perovskites was investigated using UV-Vis spectroscopy and it was found that they can effectively degrade rhodamine B in a short period of time. The Co(II)/Co(III) redox couple was identified as the key parameter in the degradation process.
Article
Materials Science, Ceramics
Neng Li, Zuhao Shi, Shiming Zhai, Naigen Zhou, Peng Zhang, Arramel Arramel, Thomas Douglas Bennett, Yuanzheng Yue
Summary: Through molecular dynamic simulations, the pressure-induced structural changes of ZIF-8 and SOD were studied. It was found that both materials undergo two transformations: amorphization process characterized by breakdown of mid-range structure without significant change in elastic modulus, and densification process involving changes in short-range structure and improvement in mechanical properties with increased short-range disorder.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Review
Energy & Fuels
Han Li, Hicham Johra, Flavia de Andrade Pereira, Tianzhen Hong, Jerome Le Dreau, Anthony Maturo, Mingjun Wei, Yapan Liu, Ali Saberi-Derakhtenjani, Zoltan Nagy, Anna Marszal-Pomianowska, Donal Finn, Shohei Miyata, Kathryn Kaspar, Kingsley Nweye, Zheng O'Neill, Fabiano Pallonetto, Bing Dong
Summary: Energy flexibility is important for balancing the fluctuating supply and demand in energy grids. This paper provides a review of data-driven energy flexibility key performance indicators (KPIs) for buildings and open datasets for testing these KPIs. The review identifies 48 KPIs from recent publications and evaluates 16 datasets suitable for demand response or building-to-grid services. Future opportunities include developing new methodologies, baseline-free KPIs, promoting standardization, and curating datasets for energy flexibility assessment.
Review
Thermodynamics
Simon Pommerencke Melgaard, Ivan Titov Nikolaisson, Chen Zhang, Hicham Johra, Olena Kalyanova Larsen
Summary: This study focuses on the challenges of dynamic simulation of a double-skin facade (DSF) using computational fluid dynamics (CFD). It highlights the lack of validated models and benchmarking datasets, as well as the lack of consensus on successfully validated DSF models in the scientific community. The study also presents a series of CFD simulations varying key aspects of DSF modelling and compares the results to empirical data to determine the best simulation settings.
BUILDING SIMULATION
(2023)
Article
Chemistry, Multidisciplinary
Martin Bonderup Ostergaard, Andreas Veis, Francesca Deganello, Vittorio Boffa, Mads Koustrup Jorgensen
Summary: The limited access to clean water is due to an increasing amount of persistent organic pollutants (POPs), which cannot be completely removed by current methods. Therefore, new treatment technologies for surface water and wastewater are required. This study combines membrane filtration and thermocatalytic chemical oxidation of POPs into one step, using a perovskite-type catalyst incorporated into an alumina membrane. The results demonstrate the great potential of thermocatalytic membranes for continuous membrane filtration and simultaneous degradation of POPs.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Martin B. Ostergaard, Francesca Deganello, Valeria La Parola, Leonarda F. Liotta, Vittorio Boffa, Mads K. Jorgensen
Summary: Ce-doped SrFeO3 perovskite-type compounds are effective thermocatalysts for degrade wastewater contaminants. The effects of cerium excess on the properties and thermocatalytic activity of Sr0.86Ce0.14FeO3-CeO2 perovskite-oxide systems were investigated. The introduction of a larger cerium excess enhances the perovskite performance, and the oxygen mobility and reducibility contribute to the superior thermocatalytic properties of these perovskite oxide-based systems.
Article
Construction & Building Technology
Jerome Le Dreau, Rui Amaral Lopes, Sarah 'Connell, Donal Finn, Maomao Hu, Humberto Queiroz, Dani Alexander, Andrew Satchwell, Doris Osterreicher, Ben Polly, Alessia Arteconi, Flavia de Andrade Pereira, Monika Hall, Tugcin Kirant-Mitic, Hanmin Cai, Hicham Johra, Hussain Kazmi, Rongling Li, Aaron Liu, Lorenzo Nespoli, Muhammad Hafeez Saeed
Summary: This paper examines building energy flexibility at an aggregated level and addresses the main barriers and research gaps for the development of this resource across three design and development phases. The paper proposes targeted research directions to address challenges and promote greater energy flexibility deployments.
ENERGY AND BUILDINGS
(2023)
Article
Multidisciplinary Sciences
Gaurav Chaudhary, Hicham Johra, Laurent Georges, Bjorn Austbo
Summary: Synconn_build is an open-source tool designed to address the lack of datasets for benchmarking control-oriented building dynamics prediction models. The tool automates simulations, data acquisition, and EnergyPlus configuration, guided by user inputs. Synconn_build prevents data overproduction by selectively creating data, offering a user-friendly approach to dataset generation.
Article
Materials Science, Ceramics
Louise Belmonte, Mette Solvang, Yuanzheng Yue
Summary: Mineral wool, particularly stone wool, is an essential thermal insulation material for saving energy and preventing fire spread in buildings. This study developed a universal method to accurately quantify its high-temperature stability on a small scale, by measuring the silhouette area variation of a cylindrical wool fiber pellet during heating. Two main stages of shrinking were detected, and the key to ensuring the fire barrier role of stone wool lies in minimizing the first stage shrinking.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Zhitao Shan, Tongyao Zhao, Xuefei Ke, Jinjun Ren, Haizheng Tao, Yuanzheng Yue
Summary: This study identifies the correlation between key structural factors and crack initiation resistance in aluminosilicate glasses. It successfully quantifies the fraction of three-coordinated oxygens and establishes the importance of oxygen tri-clusters in enhancing crack initiation resistance. These findings provide valuable insights for the design of glasses with superior mechanical performances.
Article
Chemistry, Multidisciplinary
Zijuan Du, Ang Qiao, Hemin Zhou, Zhencai Li, Wessel M. W. Winters, Jiexin Zhu, Guanjie He, Ivan P. Parkin, Haizheng Tao, Yuanzheng Yue
Summary: The glass transition temperature of bimetallic zeolitic imidazolate frameworks was found to non-linearly decrease with the presence of a mixed-metal node effect. This effect can be attributed to the increase in configurational freedom as the molar ratio of the metals increases.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zijuan Du, Ang Qiao, Hemin Zhou, Zhencai Li, Wessel M. W. Winters, Jiexin Zhu, Guanjie He, Ivan P. Parkin, Haizheng Tao, Yuanzheng Yue
Summary: This study prepared high-density amorphous phases of bimetallic zeolitic imidazolate frameworks and measured their heat capacity to determine the glass transition temperature. The results showed a nonlinear effect of the molar ratio R on the glass transition temperature, indicating an increase in configurational freedom as R increases. The study also found a close correlation between configurational freedom and network connectivity.
CHEMICAL COMMUNICATIONS
(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)