Article
Chemistry, Physical
Nilufer Kucukdeveci, Isin Akay Erdogan, Alanur Binal Aybar, Mustafa Anik
Summary: Mechanical alloying was used to synthesize Mg0.8Ti0.2-xMnxNi quaternary alloys, with the addition of a small amount of Mn resulting in an amorphous structure and affecting the electrochemical performance. The Mg0.8Ti0.175Mn0.025Ni alloy showed the highest discharge capacity at the initial charge/discharge cycle.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Nilufer Kucukdeveci, Isin Akay Erdogan, Alanur Binal Aybar
Summary: The electrochemical hydrogen storage properties of 25 h milled Mg0.80Ti0.175Mn0.025ZrxNi1-x (x = 0, 0.025, 0.05, 0.1) quinary alloys were investigated. The substitution of Zr for Mg or Ni leads to an increase in structural disorder and amorphization. The Mg0.80Ti0.175Mn0.025Zr0.10Ni0.90 alloy exhibited the best discharge capacity of 604 mA h g-1 at the initial charge/discharge cycle. Using multi-component compositions is beneficial for enhancing the structural and cyclic stability of MgNi-based alloys, and substituting additive elements for Mg or Ni may offer impressive performance for efficient hydrogen storage applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
D. Garzon, J. E. Diosa, C. Ostos, F. H. Sanchez, G. A. Munoz Medina, F. Sieves, O. Arnache
Summary: (Fe30Cu70)(96)B-4 (FCB) alloys were prepared by mechanical milling and characterized for structural, morphological, and magnetic properties with increasing milling time. The nanoparticles formed after 12 hours of milling exhibit superparamagnetic-like behavior at temperatures below 60 K despite being ferromagnetic at room temperature. The saturation magnetization and coercive field values change with milling time.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Chenzeng Zhang, Cunguang Chen, Pei Li, Mengjie Yan, Qian Qin, Fang Yang, Wenwen Wang, Zhimeng Guo, Alex A. Volinsky
Summary: Powder metallurgy Cu-30Fe alloy was prepared using mechanical alloying, pressureless sintering, and rolling processes. The rolling process affected the alloy microstructure and physical properties. The Fe particles became elongated and changed shape, while the Cu grains became elongated and refined. The coordinated deformation of the Cu and Fe phases resulted in finer Cu grains near the Fe particles. After annealing, the cold-rolled Cu-30Fe alloy achieved a good combination of mechanical and functional properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jiang Wu, Xuguang An, Jing Zhang, Shaofeng Lei, Yi Guo, Xiwei Xu, Weitang Yao, Qingyuan Wang, Qingquan Kong
Summary: Ti-24Nb-4Zr-3Mn alloys were prepared using mechanical alloying and spark plasma sintering. The study found that increasing the milling time reduces the particle size of the alloy powder, but increases the oxygen content. Among all the investigated alloys, Ti-24Nb-4Zr-3Mn alloy prepared by 20-hour milling showed excellent comprehensive mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Crystallography
Francisco Antao, Ricardo Martins, Jose Brito Correia, Rui Coelho da Silva, Antonio Pereira Goncalves, Elena Tejado, Jose Ygnacio Pastor, Eduardo Alves, Marta Dias
Summary: High entropy alloys CrNbTaVWx (where x = 1 and 1.7) have been developed for thermal barriers in fusion nuclear reactors. These alloys were prepared by ball milling and consolidated using Upgrade Field Assisted Sintering Technology. The study evaluated the structural and mechanical properties of the alloys and found that the amount of tungsten greatly affects the mechanical properties, with the CrNbTaVW1.7 alloy exhibiting higher flexural stress and strain to fracture.
Article
Chemistry, Physical
M. Javdan, Kh. Gheisari, M. Reihanian
Summary: The influence of Si addition on the microstructure and magnetic properties of (FeCoNi)75Cu25-xSix (x = 0, 5, 10, 15, 20, 25 at. %) alloys synthesized by mechanical alloying was studied. Various characterization techniques were used to evaluate the phases and distribution of elements in the alloys. The alloys exhibited semi-soft magnet behavior, with the coercivity increasing significantly with an increase in Si content, while the saturation magnetization slightly fluctuated and then sharply declined with increasing Si content from 20 at. % to 25 at. %.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Edyta Matyja, Krystian Prusik, Maciej Zubko, Grzegorz Dercz
Summary: The Ni45.5Co4.5Mn36.6In13.(4) alloy obtained from pre-alloyed powder through arc melting demonstrates finer sub-grain size and improved mechanical strength compared to the reference sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Manufacturing
Chengde Gao, Shuai Tang, Shuo Zhao, Zhenyu Zhao, Hao Pan, Cijun Shuai
Summary: In this study, non-equilibrium Zn60Zr40 amorphous powders were synthesized through mechanical alloying (MA) and then consolidated into amorphous/crystalline Zn60Zr40 alloys using selective laser melting (SLM). The MA process disrupted the atomic periodicity of the powders, leading to crystalline-to-amorphous transformation. The amorphisation of the powders increased with milling time and achieved a fully amorphous structure after 30 hours of milling. The ultra-high cooling rate during SLM prevented long-range atomic diffusion and allowed for the successful preservation of the amorphous phase, resulting in amorphous/crystalline Zn60Zr40 alloys. These alloys exhibited superior compressive yield strength and microhardness.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Chemistry, Physical
Fei Wang, Suotao Wang, Bohan Chen, Wei Ma, Qin Jing, Xinyu Zhang, Mingzhen Ma, Qingfeng Wang, Riping Liu
Summary: The addition of Ti in low-density Fe30Mn-10Al-1.57C-2.3Cr-0.3Si alloys can optimize mechanical properties by reducing the original carbide phases and introducing TiC, refining the grain size of austenite phase, and achieving higher strength. Among the investigated alloys, the one with 0.6 wt% Ti concentration demonstrates the best mechanical properties, with a yield strength of 1031.75 MPa, an ultimate tensile strength of 1158.55 MPa, and a total elongation of 23.96%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Yake Xiao, Xianghe Peng, Tao Fu
Summary: This paper presents a novel high-entropy alloy with a heterogeneous microstructure containing multi-scale precipitates. The alloy exhibits excellent mechanical properties, surpassing those of most similar alloys prepared by powder metallurgy. It shows great promise for engineering applications.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Mustafa Okumus, Feyzullah Kaya
Summary: In this study, AlCoCuNiTi high entropy alloy was synthesized through high-energy ball-milling and sintering methods. The microstructural, thermal, and microhardness properties were investigated. The results showed the formation of intermetallic and solid solution phases, a decrease in crystallite size, an increase in lattice strain and dislocation density with prolonged milling time. As the milling time increased, the particle size decreased, leading to a more homogeneous structure. The addition of Ti and the increase in milling time and sintering temperature contributed to an increase in microhardness.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Nanoscience & Nanotechnology
Tianxing Lu, Cunguang Chen, Pei Li, Chenzeng Zhang, Weihao Han, Yang Zhou, Challapalli Suryanarayana, Zhimeng Guo
Summary: A novel dispersion-strengthened copper-tungsten alloy was prepared by mechanical alloying, showing improved mechanical properties, electrical conductivity, and thermal stability. The cold-rolled Cu-5 vol% W alloy retains high tensile strength and reasonable ductility even after annealing at 800 degrees C.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Sergio Gonzaga, Arturo Molina, Rene Guardian, Horacio Martinez, Edna Vazquez Velez, Jesus Santa-Olalla Tapia
Summary: Ternary Mg-Zn-Ca alloys were manufactured using mechanical alloying for potential biomedical applications. The effect of milling time, degradation in synthetic human fluids, and cytotoxicity were studied. The alloys showed improved corrosion resistance compared to pure Mg and exhibited no cytotoxicity towards human fibroblast cells. Mg65-Zn30-Ca5 and Mg70-Zn25-Ca5 alloys have good potential for biomedical applications.
Article
Chemistry, Physical
Grzegorz Adamek, Mikolaj Kozlowski, Adam Junka, Piotr Siwak, Jaroslaw Jakubowicz
Summary: The paper presents the preparation process and properties study of bulk and porous Ti-Ta-Ag alloys. The authors found that Ta and Ag have significant influence on the microstructure and other biomaterial-related properties, and the new materials demonstrate good biocompatibility and antibacterial behavior. These materials could be applied in the production of hard tissue implants.
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)