Article
Chemistry, Physical
I. Fartushna, I. Bajenova, J. Shakirova, A. Khvan, V. Cheverikin, E. Zanaeva, A. Kondratiev
Summary: The phase equilibria in the Sm-Co, Sm-Fe, and Co-Fe-Sm systems were investigated, and the corresponding phase diagrams were constructed. The Sm-rich region in the Sm-Fe system was discovered, and the stability domains of intermetallic phases were defined. Three continuous solid solutions were found in the Co-Fe-Sm system. The phase diagram of the Sm-Co system was revised, revealing wide homogeneity regions for the SmCo5 and Sm2Co7 phases and alternative four-phase equilibria. The magnetic properties of samples containing the Sm-2(Co,Fe)(12) phase were measured and compared to literature values.
Article
Materials Science, Multidisciplinary
I. Fartushna, A. Samelyuk, K. Meleshevich, I. Tikhonova, V. Novichenko, M. Bulanova
Summary: This paper presents a comprehensive study on the phase equilibria in the Al-Fe-V system using various techniques, and constructs phase diagrams and isothermal lines to describe the equilibrium phases and reactions. The results show the existence of multiple phase equilibria and transformations at different temperatures.
MATERIALS CHARACTERIZATION
(2023)
Article
Thermodynamics
I. Fartushna, A. Samelyuk, A. Koval, K. Meleshevich, I. Tikhonova, M. Bulanova
Summary: The phase equilibria in the Ho-Co-Fe ternary and binary Ho-Co systems were investigated using various analysis methods. The phase diagram of the binary Ho-Co system was revised based on experimental results, while the ternary Ho-Co-Fe phase diagram was constructed. The system exhibits multiple solid solutions and invariant reactions.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
I. Bajenova, J. Shakirova, A. Khvan, V. Cheverikin, E. Zanaeva
Summary: The phase equilibria of the Tb-Co and Tb-Co-Fe systems were experimentally investigated for the first time. Various solid solutions were found and the phase diagrams were constructed. The Tb-Co-Fe system contains multiple invariant reactions.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
I. Fartushna, A. Samelyuk, K. Meleshevich, T. Kabantsev, M. Bulanova
Summary: The phase diagrams of the Er-Co-Fe ternary system and boundary binary Er-Co and Er-Fe systems were studied using various techniques. Revised binary phase diagrams and updated invariant temperatures were determined. Liquidus and solidus projections, as well as the reaction scheme, were constructed for the ternary Er-Co-Fe system. Several solid solutions and compounds were identified, and primary crystallization regions were determined. The solubility of Co and Fe in various compounds and the formation of three-phase regions were also investigated.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2023)
Article
Chemistry, Physical
I Fartushna, K. Meleshevich, A. Koval, I Tikhonova, J. C. Tedenac, M. Bulanova
Summary: This paper discusses the phase equilibria in the Ti-Zr-Sn system in the entirety of its composition and temperature range by utilizing experimental results and literature data. The solidus and liquidus projections are depicted, and an isothermal section at 1000 degrees C is described. The stability domains of intermetallic phases are refined, and the shape of the homogeneity range of (Ti,Zr)(5)Sn3+x is determined at different temperature intervals. Additionally, isopleths are constructed to determine the extension of the phase regions.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2022)
Article
Materials Science, Ceramics
Iu Fartushna, M. Bulanova
Summary: The crystal structures and phase diagrams of various REM-Fe, REM-Co, and Fe-Co-REM systems were analyzed, allowing for predictions about the interactions and reliability of existing data. The phase diagrams of REM-Fe and REM-Co systems were divided into different types based on their characteristics. Linear correlations of temperatures and enthalpies were used to estimate values of unstudied systems. Based on these findings, solidus and liquidus projections were proposed for the ternary systems.
POWDER METALLURGY AND METAL CERAMICS
(2022)
Article
Chemistry, Physical
K. Ye Korniyenko, L. S. Kriklya, V. M. Petyukh, I. B. Tikhonova, V. B. Sobolev, A. V. Samelyuk
Summary: The phase equilibria during solidification in the Al-Cr-Co system with 0-70 at.% Al were investigated through various techniques, resulting in the construction of solidus and liquidus surfaces, melting diagram, Scheil diagram, and series of isopleths. The study identified solid solutions and compounds participating in the phase equilibria, as well as revealed the formation mechanisms of a monoclinic ternary compound and invariant reactions involving liquid at specific temperatures. Isopleths at different compositions demonstrated peculiarities of the phase diagram.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2021)
Article
Chemistry, Physical
U. K. Sultana, M. Shevchenko, E. Jak
Summary: The study investigated phase equilibria of the AgO0.5-FeO1.5-SiO2 system in a wide temperature range, using various experimental techniques to accurately characterize the system. The data obtained were used to develop thermodynamic models for all phases in the system, contributing to the overall understanding of complex multicomponent pyrometallurgical systems.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
A. M. Gabay, Chaoya Han, Chaoying Ni, G. C. Hadjipanayis
Summary: Iron-rich corners of Sm-Fe-Ti phase diagram and quasi-ternary Sm-Fe0.8Co0.2-Ti phase diagrams are constructed based on experimental investigation. The existence of a high-temperature Th2Ni17-type phase is confirmed. The composition, equilibria, and magnetic anisotropy of cobalt-substituted phases are established.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Kostyantyn Korniyenko, Konstantin Meleshevich, Anatoliy Samelyuk, Viktor Sobolev, Lyudmila Kriklya
Summary: This study investigated the phase equilibria during solidification in the Al-Ti-Cr system. Various testing methods were used, and the results showed the existence of solid solutions, binary and ternary compounds, as well as different phase reactions. The phase diagram also exhibited some peculiarities at specific compositions.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2022)
Article
Chemistry, Physical
Biswajit Samanta, S. Balakrishnan, K. Ananthasivan
Summary: Experimental investigation in the Sn-Zr system has successfully established liquidus data and yielded more precise and reliable temperature measurements. The study reports new thermodynamic values for various phase transitions and confirms the chemical compatibility of Y2O3 crucibles with a zirconium rich alloy.
Article
Chemistry, Physical
M. Bulanova, I. Fartushna, A. Samelyuk, K. Meleshevich, A. Koval
Summary: The phase equilibria upon crystallization in the Zr-Co-Sn system were studied using SEM, EPMA, XRD, and DTA. Ternary intermetallic phases T1, T2, T3, and T4 were confirmed, with T1 and T2 melting congruently and T3 and T4 forming by peritectic reactions. The system also exhibits extended homogeneity ranges for the binary phases Zr5Sn3+x and ZrCo2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Thermodynamics
Milena Premovic, Aleksandar Djordjevic, Dusko Minic, Dragan Manasijevic, Branko Radicevic, Nenad Kolarevic, Vladica Ristic
Summary: The ternary Ge-In-Zn system was studied using various experimental techniques, and the results were compared with thermodynamic calculations. Good agreement was observed between the calculated phase diagrams and experimental data, without the need for introducing ternary thermodynamic parameters.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2022)
Article
Chemistry, Physical
Md Mofizur Rahman Mollah, Biswajit Samanta, Soumen Das, Pabitra Ghosh, Ashish Jain, Kitheri Joseph
Summary: Zr-rich U-xZr (x = 40.5, 52 & 75 wt%) alloys were prepared by arc melting technique to improve homogeneity and microstructural attributes. The solidus-liquidus temperatures, phase transformation, and crystallographic growth were studied using spot technique, differential scanning calorimetry (DSC), X-ray diffraction (XRD), and field emission scanning electron microscopy (FESEM). The results showed different solidus-liquidus temperatures for each Zr content, and the presence of different phases depending on the Zr content. The composition analysis revealed low uncertainties in determining the U and Zr composition.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Thermodynamics
I Bajenova, A. Khvan, M. Derevyanko, N. Aristova, A. Dinsdale, A. Kondratiev, A. Pisch
Summary: The thermodynamic properties of crystalline and liquid/amorphous phases of germanium dioxide were evaluated using DFT calculations and CALPHAD models. The standard entropies of these phases were reassessed using the Planck-Einstein approach, leading to a more accurate representation of the thermodynamic properties of germanium dioxide.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2021)
Article
Thermodynamics
I Fartushna, I Bajenova, M. Mardani, A. Khvan, V Cheverikin, K. W. Richter, A. Kondratiev
Summary: In this study, the ternary phase diagram of La-Ni-Fe was investigated using various methods, revealing wide homogeneity regions for LaNi5, La5Ni19, and La2Ni7, with smaller regions for other phases. The characteristics of phase equilibria were found to vary at different temperatures.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Pavel Grudinsky, Dmitry Zinoveev, Anfisa Yurtaeva, Alex Kondratiev, Valery Dyubanov, Alexander Petelin
Summary: This study investigated the carbothermic roasting of red mud followed by dry or wet magnetic separation with the addition of alkaline salts to enhance iron extraction. Sodium and potassium carbonates and sulfates were compared for their effects on iron recovery, and the influence of roasting temperature and additives on iron concentrate grade was studied. The addition of these salts during carbothermic roasting improved magnetic separation of metallic iron, as confirmed by the analysis of composition and microstructure of the separation products.
JOURNAL OF SUSTAINABLE METALLURGY
(2021)
Article
Chemistry, Physical
I Fartushna, K. Meleshevich, A. Koval, I Tikhonova, J. C. Tedenac, M. Bulanova
Summary: This paper discusses the phase equilibria in the Ti-Zr-Sn system in the entirety of its composition and temperature range by utilizing experimental results and literature data. The solidus and liquidus projections are depicted, and an isothermal section at 1000 degrees C is described. The stability domains of intermetallic phases are refined, and the shape of the homogeneity range of (Ti,Zr)(5)Sn3+x is determined at different temperature intervals. Additionally, isopleths are constructed to determine the extension of the phase regions.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2022)
Article
Multidisciplinary Sciences
Vikas Verma, Ronaldo Camara Cozza, Vladimir Cheverikin, Alexander Kondratiev, Ramkumar Penchaliah
Summary: The study examined the performance of Al-Beryl composites with and without CeO2 in terms of mechanical, wear, and corrosive properties for structural applications. The addition of 0.5% CeO2 led to a significant improvement in corrosion resistance, while increasing the content of beryl particles reduced wear of the composite.
SN APPLIED SCIENCES
(2021)
Article
Chemistry, Physical
I. Fartushna, I. Bajenova, J. Shakirova, A. Khvan, V. Cheverikin, E. Zanaeva, A. Kondratiev
Summary: The phase equilibria in the Sm-Co, Sm-Fe, and Co-Fe-Sm systems were investigated, and the corresponding phase diagrams were constructed. The Sm-rich region in the Sm-Fe system was discovered, and the stability domains of intermetallic phases were defined. Three continuous solid solutions were found in the Co-Fe-Sm system. The phase diagram of the Sm-Co system was revised, revealing wide homogeneity regions for the SmCo5 and Sm2Co7 phases and alternative four-phase equilibria. The magnetic properties of samples containing the Sm-2(Co,Fe)(12) phase were measured and compared to literature values.
Article
Materials Science, Multidisciplinary
I Fartushna, I Bajenova, A. Khvan, S. Shilundeni, V Cheverikin, M. Bulanova, A. Kondratiev
Summary: This paper for the first time defines the wide miscibility gap in the liquid phase in the Al-Fe-Sn system and investigates the evolution of the microstructure during solidification. The existence of Fe3Sn phase in the Sn-Fe system and the equilibrium participation of FeAl2 phase in the liquid phase in the ternary system were confirmed. The constructed projections and reaction scheme provide a comprehensive understanding of the Al-Fe-Sn system.
MATERIALS CHARACTERIZATION
(2022)
Article
Thermodynamics
I. Fartushna, A. Samelyuk, A. Koval, K. Meleshevich, I. Tikhonova, M. Bulanova
Summary: The phase equilibria in the Ho-Co-Fe ternary and binary Ho-Co systems were investigated using various analysis methods. The phase diagram of the binary Ho-Co system was revised based on experimental results, while the ternary Ho-Co-Fe phase diagram was constructed. The system exhibits multiple solid solutions and invariant reactions.
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
(2022)
Editorial Material
Chemistry, Physical
Dmitry Valeev, Alex Kondratiev
Article
Chemistry, Physical
I. Fartushna, A. Samelyuk, K. Meleshevich, T. Kabantsev, M. Bulanova
Summary: The phase diagrams of the Er-Co-Fe ternary system and boundary binary Er-Co and Er-Fe systems were studied using various techniques. Revised binary phase diagrams and updated invariant temperatures were determined. Liquidus and solidus projections, as well as the reaction scheme, were constructed for the ternary Er-Co-Fe system. Several solid solutions and compounds were identified, and primary crystallization regions were determined. The solubility of Co and Fe in various compounds and the formation of three-phase regions were also investigated.
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION
(2023)
Article
Crystallography
Pavel Grudinsky, Dmitry Zinoveev, Alex Kondratiev, Leonid Delitsyn, Ruslan Kulumbegov, Anton Lysenkov, Pavel Kozlov, Valery Dyubanov
Summary: This study focuses on the reduction smelting of Waelz slag to produce iron-based alloy. Thermodynamic simulation and reduction smelting experiments were conducted to predict temperatures and compositions. The experiments confirmed the feasibility of Waelz slag reduction smelting from EAF dust processing.
Article
Materials Science, Ceramics
Iu Fartushna, M. Bulanova
Summary: The crystal structures and phase diagrams of various REM-Fe, REM-Co, and Fe-Co-REM systems were analyzed, allowing for predictions about the interactions and reliability of existing data. The phase diagrams of REM-Fe and REM-Co systems were divided into different types based on their characteristics. Linear correlations of temperatures and enthalpies were used to estimate values of unstudied systems. Based on these findings, solidus and liquidus projections were proposed for the ternary systems.
POWDER METALLURGY AND METAL CERAMICS
(2022)
