Article
Chemistry, Physical
R. El-Mallawany, I. Z. Hager, H. Mahfouz, H. A. Othman
Summary: Two ternary tellurite glass systems were prepared and studied in terms of physical properties (density, molar volume), acoustic properties (ultrasonic wave velocity, elastic moduli), and other properties (Poisson's ratio, microhardness, Debye temperature) using the melt quench method.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Yasser B. Saddeek, V. Ivanov, Amr Bakr Saddek, Hesham M. H. Zakaly, H. A. A. Sidek, I. S. Mahmoud, K. A. Matori, M. H. M. Zaid
Summary: The ultrasonic relaxation process of tellurite glasses with different B2O3 contents is closely related to the frequency and B2O3 content, originating from the oscillation of oxygen atoms in a dual-well potential. This physical process is examined by a model named central force, and the subtraction of various physical variables from this model is a function of B2O3 content.
RESULTS IN PHYSICS
(2021)
Article
Materials Science, Ceramics
A. Siva Sesha Reddy, A. Kityk, J. Jedryka, P. Rakus, A. Wojciechowski, N. Venkatramaiah, V. Ravi Kumar, N. Veeraiah
Summary: The elastic coefficients and micro-hardness of Au2O3 doped PBSE glass ceramics were evaluated as a function of Au2O3 content using ultrasonic velocity measurements. The results showed a decreasing trend of elastic coefficients and micro-hardness with increasing concentration of Au2O3, due to the presence of gold metallic particles and [SeO3]2- groups that induced imperfections in the samples.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
N. Effendy, H. A. A. Sidek, M. K. Halimah, M. H. M. Zaid
Summary: The addition of zinc oxide to tellurite glasses has been found to significantly impact their properties, including reducing glass transition temperature, increasing thermal stability, altering glass network structure, and influencing optical properties.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
E. M. Abou Hussein, Mirham A. Y. Barakat
Summary: By measuring the structural, optical, physical, and ultrasonic properties of Fe-bismuth borate glasses, it is found that these glasses exhibit stable performance against γ irradiation doses up to 60 kGy. The polarizable Bi3+ ions help block the passage of radiation photons, while the presence of Fe2+/Fe3+ enhances the absorption of defect color centers caused by irradiation.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Optics
R. El-Mallawany, A. El Adawy, A. Gamal, Y. S. Rammah
Summary: A series of glasses with different compositions were prepared and tested for various properties, including elastic moduli. Theoretical analysis of the elastic moduli was conducted using Bond Compression and Makishima-Mackenzie models to interpret the experimental data.
Article
Engineering, Electrical & Electronic
Recep Kurtulus, Taner Kavas, K. A. Mahmoud, Iskender Akkurt, Kadir Gunoglu, M. I. Sayyed
Summary: By adding niobium oxide to waste soda-lime glass, the optical and physical properties can be improved, enhancing the radiation shielding effect, which shows potential value in gamma radiation applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Juliana Santos Barbosa, Gislene Batista, Sylvain Danto, Evelyne Fargin, Thierry Cardinal, Gael Poirier, Fabia Castro Cassanjes
Summary: Transparent fluorotellurite glasses were successfully prepared in the ternary system TeO2-Nb2O5-PbF2, allowing high incorporation of PbF2 without loss of glass forming ability. Compositions with higher PbF2 contents exhibit preferential precipitation of lead oxyfluoride at lower temperatures, which is controlled by a volume nucleation mechanism. Doping with Eu3+ promotes efficient nucleation and leads to transparent glass-ceramics with higher quantum efficiencies, making these new glass compositions promising hosts for luminescence applications in the middle infrared region.
Article
Geosciences, Multidisciplinary
Maria Del Pilar Di Martino, Luca De Siena, Nicola Tisato
Summary: By simulating the propagation of shear waves in computational models representing volcanic rocks, this study investigates the impact of pore space parameters on wave amplitudes and phases. The results show that the size, shape, volume, and location of pores affect waveform characteristics, particularly after multiple scattering.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Acoustics
Xue Bai, Jian Ma, Wanwei Xu, Jilai Wang, Shuai Liu
Summary: This study investigates the off-epicentral measurement system and methodology of laser-ultrasonic shear waves in the ablative regime, and focuses on its application to the elastic-moduli evaluation. The proposed scheme allows for the measurement of the shear-wave velocity using the crosscorrelation of successive shear-wave pulse echoes, ensuring reliable and reproducible calculation results. A far-field diffraction correction has been derived theoretically to account for the measurement error caused by geometric diffraction. The feasibility of this approach has been demonstrated through the inspection of annealed commercial purity titanium plates, showing good agreement between experimentally measured and theoretical values of shear-wave velocity.
Article
Materials Science, Multidisciplinary
Yasser B. Saddeek, A. El-Denglawey, H. Doweidar
Summary: Research on ternary Al2O3-P2O5-Bi2O3 glasses revealed that ultrasonic features are influenced by Al2O3, which tends to insert into the phosphate network to form (AlO4) units. This study correlated changes in density and ultrasonic velocities with structural variations represented by FTIR spectra to examine the function of Al2O3 in the glasses' network. The analysis also inferred variations in structure and elastic moduli based on oscillations of different structural units and the substitution of Bi2O3 with Al2O3.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
N. Effendy, M. H. M. Zaid, H. A. A. Sidek, K. A. Matori, K. A. Mahmoud, M. Sayyed
Summary: The study focused on the elastic and radiation shielding properties of ZnO-TeO2 transparent glass, characterized using various techniques. The substitution of ZnO in TeO2 glass systems was found to affect the structure and elastic moduli analysis. Additionally, the radiation shielding features were evaluated using simulation methods, showing promising results for different compositions of ZnO-TeO2 glass.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Physics, Multidisciplinary
A. El-Denglawey, Yasser B. Saddeek, K. A. Aly, A. A. Showahy, T. Alharbi
Summary: Pr2O3 doped bismuth-phosphate glasses with different Pr2O3 contents were prepared and their structural and mechanical features were investigated. The results showed that increasing Pr2O3 content improved the ultrasonic velocity and elastic moduli of the glasses, making them suitable for radiation shielding materials.
Article
Geosciences, Multidisciplinary
Arqam Muqtadir, Saud Al-Dughaimi, Taqi Alzaki, Jack Dvorkin
Summary: This study compares the P-wave and S-wave velocities obtained under different hydrostatic loading conditions using ultrasonic pulse transmission experiments. The results show significant differences in velocities when a smaller hydrostatic stress is added to axial stress, but these differences become smaller as the hydrostatic stress increases. The findings suggest that laboratory hydrostatic experiments can be used for in-situ velocity estimates even under strong in-situ contrasts between the vertical and horizontal stresses.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Materials Science, Ceramics
Bulent Aktas, Serife Yalcin, Mehmet Albaskara, Emine Aytar, Gokhan Ceyhan, Zeynep Silan Turhan
Summary: The present study investigates the impact of Er2O3 doping on the structural, physical, and mechanical properties of borosilicate glasses. The results show that Er2O3-doped borosilicate glasses exhibit higher mechanical and optical properties, making them suitable for applications in radiation shielding and photonics.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Physical
S. N. Mohamed, A. K. Yahya
Article
Materials Science, Ceramics
I. N. Sapian, R. Hisam, A. K. Yahya, M. I. M. Yusof
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2018)
Article
Chemistry, Inorganic & Nuclear
E. Elyana, Z. Mohamed, S. A. Kamil, S. N. Supardan, S. K. Chen, A. K. Yahya
JOURNAL OF SOLID STATE CHEMISTRY
(2018)
Article
Physics, Applied
Maryam Arifin, N. Ibrahim, Zakiah Mohamed, A. K. Yahya, Nawazish A. Khan, M. Nasir Khan
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2018)
Article
Physics, Condensed Matter
Nor Asmira, N. Ibrahim, Z. Mohamed, A. K. Yahya
PHYSICA B-CONDENSED MATTER
(2018)
Article
Chemistry, Multidisciplinary
Xiaofan Wang, Keisuke Shinokita, Hong En Lim, Nur Baizura Mohamed, Yuhei Miyauchi, Nguyen Thanh Cuong, Susumu Okada, Kazunari Matsuda
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
Chemistry, Inorganic & Nuclear
R. Rozilah, N. Ibrahim, A. K. Yahya
SOLID STATE SCIENCES
(2019)
Article
Materials Science, Multidisciplinary
R. Hisam, A. K. Yahya
RESULTS IN PHYSICS
(2019)
Article
Physics, Condensed Matter
R. Rozilah, M. K. Yaakob, A. K. Yahya
PHYSICA B-CONDENSED MATTER
(2020)
Article
Materials Science, Multidisciplinary
S. J. Japari, A. K. Yahya, R. Hisam
RESULTS IN PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
N. Ibrahim, R. Rozilah, Z. Mohamed, A. K. Yahya
MATERIALS CHEMISTRY AND PHYSICS
(2020)
Article
Crystallography
Nurul Atiqah Azhar, Intan Solehah Ismail, Nur Baizura Mohamed, Azhan Hashim, Zakiah Mohamed
Article
Chemistry, Inorganic & Nuclear
S. A. Shuhaimi, R. Hisam, A. K. Yahya
SOLID STATE SCIENCES
(2020)
Article
Optics
S. N. Mohamed, E. S. Sazali, A. K. Yahya
Summary: The optical absorption and emission properties of two glass series were studied, revealing the effect of co-doping V2O5 and Er2O3 on the luminescence. Different concentrations of additives led to different results.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
M. F. R. Amiruddin, R. Hisam, A. K. Yahya
CHALCOGENIDE LETTERS
(2019)
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)