Article
Engineering, Chemical
Yosep Han, Seongmin Kim, Byunghun Go, Sujeong Lee, Seongkyun Park, Ho-Seok Jeon
Summary: An optimized magnetic separation process was proposed to improve the recovery of high-content vanadium and titanium concentrates from vanadium-titanium magnetite ore. By crushing and grinding the ore samples, an optimum grinding time and magnetic intensity were determined, leading to satisfactory grade and recovery of vanadium and titanium concentrates.
Article
Engineering, Environmental
Chun-dan Gan, Qi-xuan Tang, Hao Wang, Jin-yan Yang, Aleksander Nikitin
Summary: The microbially-and chemically-mediated redox process plays a crucial role in controlling the fate of vanadium in tailing environment. This study focused on the coupled biotic reduction of vanadium mediated by Shewanella oneidensis MR-1 and oxalic acid. The results showed that oxalic acid promoted the microbial release and redistribution of vanadium in solid-phase, suggesting the significance of organic agents in the vanadium biogeochemical cycle in natural systems.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Lin Li, Tao Jiang, Bojian Chen, Jing Wen, Guangdong Yang
Summary: This study systematically investigated the effects of SiO2 and CaO content on the properties of foamed ceramics based on vanadium-titanium magnetite tailings. The results showed that increasing CaO content increased the bulk density of the samples, while excessive SiO2 content negatively affected pore quantity and interconnectivity.
JOURNAL OF SUSTAINABLE METALLURGY
(2022)
Article
Environmental Sciences
Zhijie Long, Haijian Bing, He Zhu, Yanhong Wu
Summary: Soil covering is an effective measure to reduce pollutant release and promote vegetation restoration in tailings reservoirs. A soil column leaching experiment showed limited migration and leaching of vanadium (V) in the system of vanadium titano-magnetite tailings (VTMTs) covered by soils with different depths. The results provide significant guidance for vegetation restoration in V-rich tailings reservoirs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Construction & Building Technology
Patrick N. Lemougna, Arnold Ismailov, Erkki Levanen, Pekka Tanskanen, Juho Yliniemi, Katja Kilpimaa, Mirja Illikainen
Summary: This study investigates the effect of glass wool waste on the sintering properties of kaolinitic and illitic clays in the ceramic industry. It was found that the addition of glass wool increased compressive strength at lower temperatures, while the addition of spodumene tailings mitigated firing shrinkage at higher temperatures.
JOURNAL OF BUILDING ENGINEERING
(2024)
Article
Engineering, Chemical
Wenbo Li, Xiao Liu, Dongquan Liu, Yuexin Han
Summary: In this paper, magnetization roasting low-intensity magnetic separation was conducted to separate titanium and vanadium from an Australian hematite concentrate. The results showed that high-grade iron concentrate and iron tailings with desirable recovery rates could be obtained under optimal roasting conditions. XRD analysis and magnetic analysis confirmed the transformation of minerals during magnetization roasting, enabling the easy separation of ilmenite and vanadium through magnetic separation.
ADVANCED POWDER TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Yufeng Guo, Kuo Liu, Feng Chen, Shuai Wang, Lingzhi Yang, Dongyue Li, Yu Zheng
Summary: High-pressure grinding roll (HPGR) technology can be used to pretreat vanadium-titanium magnetite (VTM) concentrate, which helps solve the low consolidation strength and high energy consumption problems. Compared with other technologies, HPGR pretreatment offers high efficiency and low energy consumption. This study discovered that VTM concentrate mainly consists of titaniferous magnetite particles with coarse size and regular shape. The lower surface area leads to lower microcrystalline and recrystallization bonding strength of titaniferous hematite in VTM pellets. HPGR pretreatment technology increases the total contact area between particles, promoting the formation of more microcrystalline and recrystallization connections of titaniferous hematite, significantly improving the performance of VTM pellets.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Gongjin Cheng, Lanjie Li, Xiangxin Xue, He Yang, Weijun Zhang, Ruiguo Bai
Summary: The effects of extracted-vanadium residue (EVR) and MgO on the fundamental sintering characteristics of High-chromium vanadium-titanium magnetite (HCVTM) were studied. The optimal blending ratio was found to be 6 wt% EVR and 1 wt% MgO.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Crystallography
Weibin Chen, Zhaoqi Dong, Yang Jiao, Lili Liu, Xidong Wang
Summary: The use of bentonite as a binder for VTM pellets can improve their compressive and dropping strength, while roasting the pellets is essential for enhancing their metallurgical properties. The optimal roasting conditions are a calcination temperature of 1523 K and a calcination time of 20 minutes.
Article
Engineering, Chemical
Jianwen Yu, Nan Hu, Hanxin Xiao, Peng Gao, Yongsheng Sun
Summary: A new efficient and clean utilization technique for vanadium-titanium magnetite based on fluidized bed hydrogen reduction was developed in this study. Experimental results showed that a high metallization degree could be obtained under specific conditions, and the aggregation of metallic iron grains into flakes was observed during the reduction process.
Article
Chemistry, Physical
Shuangping Yang, Shouman Liu, Shijie Guo, Tiantian Zhang, Jianghan Li
Summary: In this study, the enrichment conditions of titanium element during the melting process of vanadium-titanium magnetite were optimized using experimental methods. The study clarified the form and migration law of titanium element in the slag under different melting conditions.
Article
Materials Science, Ceramics
Gang Li, Dan Chen, Yang You, Chengyi Ding, Guishang Pei, Yun Chen, Guibao Qiu, Xuewei Lv
Summary: The study focused on the preparation, crystal structure, and metallurgical performance of andradite titanium. Results showed that AT had high compressive strength, with softening, melting, and flowing temperatures at 1453, 1483, and 1509 K, respectively.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Hailu Wang, Yuanbing Li, Bo Yin, Shujing Li, Ruofei Xiang, Han Luo, Shiqi Li, Zimeng Zhou
Summary: In this study, cordierite foam ceramics were prepared using kyanite tailings and other materials, and the effects of different process parameters on their properties were investigated. Additionally, the dynamic heat transfer of cordierite foam ceramics in different seasons was simulated using software, providing a reference for similar applications.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
Chengxu Liao, Lin Liu, Zuolong Shi, Xinfeng Zhang, Li Zou, Zhihui Chen, Yawen Liu, Yonghua Sun
Summary: In this study, a composite material was prepared using vanadium titanomagnetite (VTM) tailings, kaolin, and sodium silicate, and used as a photocatalyst for the degradation of organic dyes. The photocatalytic material exhibited excellent performance in degrading rhodamine B within a short period of time. The synthesized materials were characterized using various techniques, and the effects of solution pH and preparation conditions on the photocatalytic efficiency were investigated. The results indicated the feasibility of utilizing VTM tailings as photocatalysts and provided insights for their comprehensive utilization.
JOURNAL OF SUSTAINABLE METALLURGY
(2023)
Article
Materials Science, Multidisciplinary
Bo Wang, Xueyong Ding, Tianhua Ju, Xiaofei Zhang, Gongjin Cheng
Summary: The novel smelting reduction process shows promise in reducing environmental pollution in the ironmaking industry. Parameters such as reduction temperature, holding time, and coal ratio significantly affect the metallization rate. Achieving a metallization rate of over 70% is possible under certain conditions, but increasing the parameters further may lead to reoxidation.
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)