Article
Materials Science, Multidisciplinary
Xiao-Bin Mang, Lian-Qi Yao
Summary: Gold nanoparticle arrays fabricated through layer-by-layer technique were studied using GISAXS method. The sideway and vertical correlations between gold nanoparticles in the same layer and between different layers were found to depend on the thickness of polyelectrolyte interlayers.
Article
Multidisciplinary Sciences
J. S. Park, J. D. Almer, K. C. James, L. J. Natanson, S. R. Stock
Summary: Members of subclass Elasmobranchii possess bioapatite mineralization in their cartilage skeletons, which has similar crystallography to bone but exhibits some differences. The mineral phase in shark centra has larger nanocrystallite sizes and is associated with less microstrain compared to bone.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2022)
Article
Polymer Science
Apisit Banpean, Hideaki Takagi, Nobutaka Shimizu, Noriyuki Igarashi, Shinichi Sakurai
Summary: The study focused on the confined crystallization of PEG in PLLA spherulite in a PLLA/PEG blend specimen using SAXS/WAXS measurements. The results showed suppression of PEG lamellae growth in the thickness direction due to space confinement by preformed PLLA lamellae, while also observing more regular stacking in the blend specimen.
Review
Chemistry, Analytical
Seema Thakral, Kyungtae Kim
Summary: Small-angle scattering (SAS) is a versatile analytical technique that provides detailed structural information at the nanometer scale. It has diverse applications in pharmaceutical material characterization, including identification of liquid-crystalline mesophase of drugs, study of excipient microstructure influence, and optimization of solid dispersions and protein-based therapeutics formulations.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Physical
Kun Qian, Randall E. Winans, Tao Li
Summary: Understanding the nanostructures of liquid electrolytes is crucial for enhancing electrochemical energy storage capacities, but the solvation structures and molecular dynamics in electrolytes are difficult to probe. Small-angle X-ray scattering (SAXS) offers unique insights into molecular clusters and ion pairs in electrolytes, with excellent time-resolution for studying molecular dynamics. This review focuses on the microscopic understanding of liquid electrolytes by SAXS and highlights the unique capabilities of X-ray scattering for nanostructure characterization.
ADVANCED ENERGY MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Hiroshi Imamura, Shinya Honda
Summary: Antibody aggregation and acid denaturation followed by neutralization of pH contribute to the high cost of therapeutic monoclonal antibody production. Understanding the structural details of acid-denatured antibodies is crucial for antibody engineering. Research has shown that acid-denatured monoclonal antibodies become smaller globules at pH 2 compared to their native structure at pH 7. Small-angle X-ray scattering data indicate conformational changes that can lead to aggregation. The distortion of the Fc region and longer inter-domain correlations are found to initiate acid denaturation and aggregation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Enyi Chi, Haiying Huang, Fajun Zhang, Tianbai He
Summary: Crystalline block copolymers have been utilized to create plate-like colloidal systems with controlled size and shape. The structure in solution and the face-to-face spacing were characterized using small- and ultrasmall-angle X-ray scattering techniques, revealing the importance of lateral attraction between polar crystalline blocks for the formation of the nematic phase.
Article
Chemistry, Applied
Thomas Konegger, Christina Drechsel, Herwig Peterlik
Summary: In this study, in-situ small angle X-ray scattering (SAXS) was used to monitor the structural evolution of polymer-derived ceramic materials during the pyrolytic conversion process, focusing on the emergence, transformation, and collapse of transient microporosity. Results showed that the in-situ experiments were in good agreement with conventionally obtained ex-situ data, indicating the significant potential of this method for gaining fundamental insights into the conversion of polymer-derived ceramics.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Polymer Science
Sascha A. Wilhelm, Michail Maricanov, Volker Brandt, Frank Katzenberg, Joerg C. Tiller
Summary: Amphiphilic polymer conetworks (APCNs) combine two incompatible properties within one material by featuring two interconnected independently swelling nanophases. Two novel APCN families have been synthesized using hydrophilic and hydrophobic polymers, respectively, and have demonstrated the ability to swell in orthogonal solvents without changing their nanostructure.
Article
Medicine, Research & Experimental
Yiwen Li, Jianqiao Zhang, Panqi Song, Xiaran Miao, Guangfeng Liu, Chunming Yang, Xiaohui Wei, Na Li, Fenggang Bian
Summary: This study used SAXS to investigate the structure of PEGylated liposomal doxorubicin (PLD) and compared the suitability of different models. The results showed that spherical-shell and flat-slab models with Gaussian electron density distribution were able to effectively reveal the structural features of the liposomal membrane, while models with uniform electron density distribution performed poorly. This study highlights the applicability of SAXS in liposomal drugs.
MOLECULAR PHARMACEUTICS
(2023)
Article
Chemistry, Physical
Edgar Gutierrez-Fernandez, Alvaro Rodriguez-Rodriguez, Mari-Cruz Garcia-Gutierrez, Aurora Nogales, Esther Rebollar, Eduardo Solano, Tiberio A. Ezquerra
Summary: This article explores the potential of synchrotron Grazing Incidence Small Angle X-ray Scattering (GISAXS) in evaluating the extension of a Photoinduced Resist-free Imprinting (PRI) effect on fullerene derivative thin films. The results show that GISAXS can provide valuable information about the nature of nanostructures, with PRI effect leading to a more disordered structure compared to the original LIPSS. This study highlights GISAXS as a powerful tool for characterizing Resist-free Imprinting procedures in nanotechnology.
APPLIED SURFACE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Daria Wojciechowska, Michal Taube, Karolina Rucinska, Joanna Maksim, Maciej Kozak
Summary: This study characterized the oligomeric states of human cystatin C in different pH conditions, revealing the ability to form tetramers at low pH and dissociate into dimers at neutral pH.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Jana Smilauerova, Petr Harcuba, Jitka Straska, Josef Strasky, Milos Janecek, Jiri Pospisil, Jan Ilavsky, Vaclav Holy
Summary: The shapes and orientations of lamellae in single crystals of metastable beta-Ti alloy were investigated using synchrotron small-angle x-ray scattering. The results provide information on the kinetics of the beta-alpha transformation and the thermodynamic equilibrium of the final alpha-beta composite.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Kohei Yamanoi, Satoshi Shibuta, Atsushi Shiro, Masao Noumi, Melvin John F. Empizo, Marilou Cadatal-Raduban, Nobuhiko Sarukura, Keiko Nishikawa, Takeshi Morita
Summary: Fluoropolymers have diverse applications in various industries. Neat fluoropolymers and fluorinated copolymers were synthesized using suspension polymerization method, with an increase in structural disorder observed at a slower rate with higher VdF content in the copolymer. The copolymer with the highest VdF content showed similar crystallinity before and after the stimulus, indicating good thermal stability and microvoid tolerance.
JOURNAL OF SUPERCRITICAL FLUIDS
(2022)
Article
Chemistry, Physical
Abigail Barclay, Birthe B. Kragelund, Lise Arleth, Martin Cramer Pedersen
Summary: Recent advances in protein expression protocols have allowed for the investigation of structurally complex and disordered biomolecules using small-angle scattering experiments. A modeling scheme has been developed that combines classical form factor based modeling with spherical harmonics-based formulation to accurately calculate scattering profiles from these complex samples. The scheme can account for flexible domains and other structurally elaborate components, and we demonstrate its utility through a case study on a growth hormone receptor membrane protein. We also explore how the scattering profiles vary under different contrasts and discuss the implications for data modeling.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Xuefei Miao, Chenxu Wang, Tuwei Liao, Shenghong Ju, Jiaju Zha, Wenyao Wang, Jun Liu, Yujing Zhang, Qingyong Ren, Feng Xu, Luana Caron
Summary: Magnetic refrigeration based on the magnetocaloric effect has the potential to revolutionize the refrigeration industry due to its high energy efficiency and elimination of greenhouse gas emissions. However, challenges in magnetocaloric materials such as low thermal conductivity and poor mechanical properties hinder its implementation. This paper presents a novel magnetocaloric composite with a unique microstructure that addresses these challenges. The composite exhibits high thermal conductivity and compressive strength, making it a promising solution for practical applications in magnetic refrigeration.
Article
Physics, Applied
Yaroslav A. A. Peshkov, Sergey A. A. Ivkov, Alexander S. S. Lenshin, Alexander V. V. Sitnikov, Yury A. A. Yurakov
Summary: In this study, we investigated the effect of microstructure and In2O3/C interlayer thickness on the electrical transport properties of [(Co40Fe40B20)(34)(SiO2)(66)/(In2O3)/C](46) multilayers prepared via ion-beam sputtering. The results showed that all components of the multilayers were X-ray amorphous regardless of the layer thickness. The thinnest multilayer with a nonmagnetic In2O3/C interlayer thickness of about 1.6 nm exhibited a magnetoresistance of about 0.8% at room temperature and 3.2% at cryogenic temperature.
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Chenxu Wang, Xuefei Miao, Jiaju Zha, Wenhui Guo, Qingyong Ren, Yujing Zhang, Feng Xu, Luana Caron
Summary: The geometry of a magnetocaloric regenerator plays a crucial role in the performance and heat exchange efficiency of a magnetic refrigerator. A new and easy method has been proposed to produce monolithic MRs with highly ordered and unidirectional oriented microchannels. The MRs retain an orthorhombic perovskite structure after sintering, exhibiting a significantly higher isothermal entropy change.
SCRIPTA MATERIALIA
(2023)
Article
Physics, Applied
Victor Ukleev, Max Burian, Sebastian Gliga, C. A. F. Vaz, Benedikt Rosner, Danny Fainozzi, Gediminas Seniutinas, Adam Kubec, Roman Mankowsky, Henrik T. Lemke, Ethan R. Rosenberg, Caroline A. Ross, Elisabeth Mueller, Christian David, Cristian Svetina, Urs Staub
Summary: Magnetic domain patterns in Tm-doped yttrium iron garnet (Tm:YIG) thin film can be locally imprinted by high intensity photon pulses of a hard x-ray transient grating (XTG). Micromagnetic simulations provide an understanding of the observed changes in magnetic domains orientation in Tm:YIG and XTG-induced changes. These results offer a route for the local manipulation of the magnetic state using hard XTG.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
V. A. Terekhov, E. P. Domashevskaya, S. I. Kurganskii, D. N. Nesterov, K. A. Barkov, V. R. Radina, K. E. Velichko, I. E. Zanin, A. V. Sitnikov, B. L. Agapov
Summary: Al1-xSix films were prepared by ion beam sputtering and their structure and electronic structure were investigated. The formation of ordered phase Al3Si in the films was detected using X-ray diffraction and X-ray emission spectroscopy, along with theoretical calculation. It was found that the long-range order in the Al1-xSix films is resilient to changes in composition.
Article
Physics, Applied
Elena A. Gan'shina, Alexandr B. Granovsky, Vladimir V. Garshin, Ilya M. Pripechenkov, Alexandr V. Sitnikov, Mikhail N. Volochaev, Vladimir V. Ryl'kov, Sergey N. Nikolaev
Summary: We investigated the magneto-optical properties of (CoFeZr)(x)(Al2O3)(100-x) film nanocomposites using the transverse Kerr effect (TKE) geometry. The TKE response at room temperature was found to depend on the wavelength of light, magnetic field strength, and the volume metallic fraction. The interaction between nanoparticles was found to be small at low x values, giving rise to a superparamagnetic ensemble, but as x increased, a superspin glass state and superferromagnetic regions appeared. Long-range ferromagnetic order was observed at x concentrations below the percolation threshold for conductivity. After annealing, significant changes were observed in the field and spectral dependence of TKE, while the changes in magnetization were negligible.
Article
Chemistry, Inorganic & Nuclear
Evelina P. Domashevskaya, Sergey A. Ivkov, Pavel V. Seredin, Dmitry L. Goloshchapov, Konstantin A. Barkov, Stanislav V. Ryabtsev, Yrii G. Segal, Alexander V. Sitnikov, Elena A. Ganshina
Summary: The aim of this study is to investigate the impact of variable atomic composition and structural-phase state on the nonlinear electronic and magnetic/magneto-optical properties of (CoFeZr)(x)(MgF2)(100-x) nanocomposites (NCs). The NCs, with a thickness of micrometers, were obtained by ion-beam sputtering of a composite target in an argon atmosphere. The resistive percolation threshold, x(per) = 34 at & BULL;%, coincided with the nucleation of metallic nanocrystals CoFeZr in the MgF2 dielectric matrix. The study revealed the formation of hexagonal CoFeZr alloy nanocrystals at x = 34 at & BULL;%, and the phase transition from hexagonal to cubic body-centered structure at x = 45 at & BULL;%.
Article
Physics, Multidisciplinary
S. N. Nikolaev, K. Yu. Chernoglazov, A. V. Emelyanov, A. V. Sitnikov, A. N. Taldenkov, T. D. Patsaev, A. L. Vasiliev, E. A. Gan'shina, V. A. Demin, N. S. Averkiev, A. B. Granovsky, V. V. Rylkov
Summary: A strongly nonmonotonic temperature dependence of magnetoresistance is observed in (CoFeB)(x)(LiNbOy)(100 -)(x) film nanocomposites, with a minimum value at 40 K and a steep increase on cooling. This behavior is attributed to the coexistence of superferromagnetic and superparamagnetic regions in the nanocomposite. At T > 40 K, an increase in negative magnetoresistance is due to the destruction of superferromagnetic ordering, while at T < 40 K, an increase in magnetoresistance is related to elastic tunneling via chains of granules. An additional negative contribution arises at the saturation of magnetization, possibly due to quantum interference effects. A double-well shape of the field dependence of magnetoresistance is observed at T < 4 K, which could be explained by the competition between positive and negative magnetoresistance contributions.
Article
Energy & Fuels
Tapas Samanta, Chris Taake, Laila Bondzio, Luana Caron
Summary: The nature of phase transition and the reversibility of the magnetocaloric effect have been studied in MnNi1-xCoxGe0.97Al0.03. The introduction of Al substitution lowers the structural phase transition temperature, resulting in a coupled first-order magnetostructural transition. A composition-dependent triple point has been observed in the system, where the first-order phase transition splits into an additional phase boundary with a second-order transition character at higher temperature. The reversibility of the low-field entropy change is enhanced at the triple point due to lattice softening and larger field-induced structural entropy change.
JOURNAL OF PHYSICS-ENERGY
(2023)
Article
Physics, Multidisciplinary
Priya R. Baral, Oleg I. Utesov, Chen Luo, Florin Radu, Arnaud Magrez, Jonathan S. White, Victor Ukleev
Summary: This study investigates the role of anisotropic exchange interaction (AEI) in the formation of tilted conical and disordered skyrmion states in the chiral magnet Cu2OSeO3. Using muon scattering and temperature dependence measurements, it is found that the AEI continuously increases below 50 K, leading to a 10% variation in the conical spiral pitch. These findings contribute to the understanding and design of various spiral states in chiral magnets.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Aki Kitaori, Jonathan S. White, Naoya Kanazawa, Victor Ukleev, Deepak Singh, Yuki Furukawa, Taka-hisa Arima, Naoto Nagaosa, Yoshinori Tokura
Summary: AC current-driven motions of spiral spin textures can create new electric fields and induce emergent electromagnetic induction effect, potentially realizing quantum inductor elements of micrometer size. Research on YMn6Sn6 helimagnet reveals the optimized conditions for emergent inductors beyond room temperature, achieved by modifying the magnetism through partial substitution of Y by Tb. The study demonstrates the control of both magnitude and sign of emergent electromagnetic inductance, and expands the range of potential candidate materials for emergent inductors.
Article
Chemistry, Multidisciplinary
Sergey A. Ivkov, Konstantin A. Barkov, Evelina P. Domashevskaya, Elena A. Ganshina, Dmitry L. Goloshchapov, Stanislav V. Ryabtsev, Alexander V. Sitnikov, Pavel V. Seredin
Summary: The purpose of this study was to investigate the impact of variable atomic composition and structural-phase state on the nonlinear transport and magnetic/magneto-optical properties of Co-x(MgF2)(100-x) nanocomposites. Nanocomposite layers with micrometer thickness were grown on glass substrates using ion-beam sputtering technique under argon atmosphere, covering a wide range of compositions (x = 16-59 at.%). By maintaining a low metal content in the nanocomposite, magnesium fluoride remained in the nanocrystalline state, while increasing the metal content resulted in the formation of nanocrystalline cobalt. The resistive percolation threshold value (x(per) = 37 at.%) coincided with the onset of metallic nanocrystal nucleation in the MgF2 dielectric matrix. The maximum absolute value of the negative magnetoresistive effect was 5% at a Co concentration of x = 27 at.% in a magnetic field of 5.5 kG.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Wenhui Guo, Xuefei Miao, Jiyuan Cui, Shuki Torii, Fengjiao Qian, Yuqing Bai, Zongde Kou, Jiaju Zha, Yanyan Shao, Yujing Zhang, Feng Xu, Luana Caron
Summary: This study reports a significant improvement in the reversibility and mechanical stability of MnNiGe-based alloys through grain orientation. The oriented grains allow for synergistic deformations during the magnetostructural transition, reducing stress concentration. The textured alloys also exhibit low thermal hysteresis and a large reversible isothermal entropy change, making them attractive for practical applications.
Article
Physics, Multidisciplinary
V Ukleev, K. A. Pschenichnyi, O. Utesov, K. Karube, S. Muehlbauer, R. Cubitt, Y. Tokura, Y. Taguchi, J. S. White, S. Grigoriev
Summary: Multiple intriguing low-temperature phenomena have been discovered in the family of chiral cubic Co-Zn-Mn compounds, including the occurrence of metastable skyrmions and changes in lattice shape. This study focuses on temperature-dependent measurements of helimagnon excitations in Co8Zn8Mn4. The results show quantitative estimates of both spin-wave stiffness and damping, with nontrivial temperature dependencies possibly arising from magnetic frustration effects and variations in exchange and Dzyaloshinskii-Moriya interactions.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Hiroki Ueda, Elizabeth Skoropata, Max Burian, Victor Ukleev, Gerard Sylvester Perren, Ludmila Leroy, Julien Zaccaro, Urs Staub
Summary: In this study, resonant x-ray diffraction (RXD) was used to investigate helical magnetic order in the multichiral system CsCuCl3, revealing electric quadrupole moments around Cu. The detailed investigation also uncovered additional sinusoidal modulations known as longitudinal conical structure superimposed on the reported helical structure. These findings suggest significant spin-orbit interaction despite the presence of Cu2+ with S = 1/2.
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)
