Danilo Alencar de Abreu

ORCID: 0000-0002-0233-0682
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About
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Research Areas
  • Intermetallics and Advanced Alloy Properties
  • High-Temperature Coating Behaviors
  • Metallurgical Processes and Thermodynamics
  • Extraction and Separation Processes
  • High Entropy Alloys Studies
  • Aluminum Alloys Composites Properties
  • Metallurgical and Alloy Processes
  • Molten salt chemistry and electrochemical processes
  • Aluminum Alloy Microstructure Properties
  • Electrical and Thermal Properties of Materials
  • Advanced Battery Materials and Technologies
  • Thermal and Kinetic Analysis
  • Metal Extraction and Bioleaching
  • Advancements in Battery Materials
  • Materials Engineering and Processing
  • Advanced materials and composites
  • High-Velocity Impact and Material Behavior

TU Bergakademie Freiberg
2023-2024

Universidade de São Paulo
2020-2022

Abstract In the present work, phase equilibria in Li $$_2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mrow /> <mml:mn>2</mml:mn> </mml:msub> </mml:math> O–Al O $$_3$$ <mml:mn>3</mml:mn> system were experimentally studied and calorimetric measurements performed. Based on obtained results data from literature, thermodynamic parameters of assessed. The solid solution phases modeled using Compound Energy Formalism (CEF) liquid was described by two-sublattice...

10.1007/s11669-024-01082-2 article EN cc-by Journal of Phase Equilibria and Diffusion 2024-02-01

The expected shortage of Li due to the strong increase in electromobility is an important issue for recovery from spent Li-ion batteries. One approach pyrometallurgical processing, during which ignoble elements such as Li, Al and Mn enter slag system. engineered artificial mineral (EnAM) strategy aims efficiently recover critical elements. This study focuses on stabilizing Li-manganates a synthetic investigates relationship between Mn4+ Mg relation phase formation. Therefore, three slags...

10.3390/min14040368 article EN Minerals 2024-03-30

Phase equilibria studies were performed in the Li2O-SiO2 system for heat-treated samples using Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD). The temperature of eutectic reaction (Liq. ⇌ Li4SiO4 + Li2SiO3) was experimentally determined at 1289 K Differential Thermal Analysis (DTA). No evidences Li6Si2O7 formation found by experimental investigation therefore, it not considered. Heat capacity Li8SiO6 phase measured Calorimetry (DSC). Solid phases described as stoichiometric...

10.3390/solids5020020 article EN cc-by Solids 2024-06-01

Abstract The challenge of obtaining sufficient raw materials is a major concern when it comes to extracting lithium from spent lithium-ion batteries. One way address this through pyrometallurgical processing, which leaves undesirable elements such as lithium, aluminum and manganese in the slag. engineered artificial minerals approach focuses on effective recovery critical elements. Different slag systems have been studied literature, understanding phase relationships $$\text {Li}_2{\text...

10.1007/s11837-024-06809-7 article EN cc-by JOM 2024-08-20

Slags generated from pyrometallurgical processing of spent Li-ion batteries are reservoirs Li compounds that, on recycling, can reintegrate into the material stream. In this context, γ-LiAlO2 is a promising candidate that potentially increases recycling efficiency due to its high content and favorable morphology for separation. However, solidification kinetics depends melt compositions cooling strategies. The Engineered Artificial Minerals approach aims optimize process conditions maximize...

10.3390/solids5040038 article EN cc-by Solids 2024-11-12

<title>Abstract</title> In this study, the thermodynamic parameters of Mn-Si-O system were re-evaluated using CALPHAD approach. Available experimental data on phase equilibria taken into account and properties such as heat capacity, standard entropy enthalpy reproduced within uncertainties. Three ternary compounds are found to be stable in system: rhodonite (MnSiO<sub>3</sub>), braunite (Mn<sub>7</sub>SiO<sub>12</sub>) tephroite (Mn<sub>2</sub>SiO<sub>4</sub>). Braunite was modeled by CEF,...

10.21203/rs.3.rs-4813535/v1 preprint EN cc-by Research Square (Research Square) 2024-08-27

Abstract In this study, the thermodynamic parameters of Mn–Si–O system were re-evaluated using CALPHAD approach. Available experimental data on phase equilibria taken into account and properties such as heat capacity, standard entropy enthalpy reproduced within uncertainties. Three ternary compounds are found to be stable in system: rhodonite (MnSiO $$_3$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mmultiscripts> <mml:mrow/> <mml:mn>3</mml:mn> </mml:mmultiscripts>...

10.1007/s00269-024-01302-8 article EN cc-by Physics and Chemistry of Minerals 2024-12-27

Phase equilibria in the Al-V-Zr system have an important role for designing low-density Al-containing refractory multi-principal element alloys. In order to add a contribution literature data related this system, liquidus projection of ternary was experimentally investigated by microstructural characterization as-cast Sixty alloys were produced arc furnace, microstructures characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) determination chemical...

10.2139/ssrn.4611606 preprint EN 2023-01-01
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