A5016359844- Hydrogen Storage and Materials
- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Ammonia Synthesis and Nitrogen Reduction
- Magnesium Alloys: Properties and Applications
- Advanced materials and composites
- MXene and MAX Phase Materials
- Hybrid Renewable Energy Systems
- Superconductivity in MgB2 and Alloys
- Spacecraft and Cryogenic Technologies
- Titanium Alloys Microstructure and Properties
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Catalysis and Hydrodesulfurization Studies
- Recycling and Waste Management Techniques
- Energetic Materials and Combustion
- High-pressure geophysics and materials
- Nuclear Materials and Properties
- Thermal Expansion and Ionic Conductivity
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Advanced Welding Techniques Analysis
- Advancements in Solid Oxide Fuel Cells
- Metallurgical and Alloy Processes
- Wireless Power Transfer Systems
Universidade Estadual de Campinas (UNICAMP)
2015-2025
Institute for Energy Technology
2016
Universidade Federal de São Carlos
2011-2014
Universidade Estadual de Londrina
2009-2010
Ultrafine-grained and heterostructured materials are currently of high interest due to their superior mechanical functional properties. Severe plastic deformation (SPD) is one the most effective methods produce such with unique microstructure-property relationships. In this review paper, after summarizing recent progress in developing various SPD for processing bulk, surface powder materials, main structural microstructural features SPD-processed explained including lattice defects, grain...
Body‐centered cubic (BCC) and high‐entropy alloys are being investigated as potential hydrogen storage materials due to their ability absorb high amounts of at moderate temperatures. Herein, the synthesis behavior new MgVCr BCC MgTiVCrFe studied. The initially synthesized by mechanical alloying via high‐energy ball milling (HEBM) under atmosphere followed high‐pressure torsion (HPT) processing improve activation. X‐ray diffraction (XRD) in combination with transmission electron microscopy...
This study presents the design and evaluation of a medium entropy alloy (MEA), Ti21Zr21Fe41Ni17, for hydrogen storage at room temperature (30 °C), employing an integrated approach that combines CALPHAD calculations with semiempirical rules. The was developed based on four specific criteria: (1) valence electron concentration (VEC) between 6.2 6.5, (2) atomic size mismatch (δ) least 9.7%, (3) radius ratio hydride-forming to non-hydride-forming elements (rA/rB) ranging from 1.149 1.219, (4)...
High-pressure torsion (HPT) is widely used not only as a severe plastic deformation (SPD) method to produce ultrafine-grained metals but also mechanical alloying technique synthesize different alloys. In recent years, there have been several attempts functional high-entropy alloys using the HPT method. this paper, application of materials including metallic alloys, hydrides, oxides and oxynitrides for enhanced hydrogen storage properties, photocatalytic production high light absorbance reviewed.
Abstract The development of new biomaterials with outstanding mechanical properties and high biocompatibility has been a significant challenge in the last decades. Nanocrystalline metals have provided opportunities producing high-strength biomaterials, but these nanometals needs to be improved. In this study, we introduce metal-protein nanocomposites as superior biocompatibility. Small proportions bovine serum albumin (2 5 vol%), an abundant protein mammalian body, are added titanium, two...
Mg–V–Cr alloys can be considered as alternatives to the Ti–V–Cr BCC (body-centered cubic) for hydrogen storage at room temperature, but their synthesis has not been successful so far because Mg is immiscible in V and Cr. In this study, first were synthesized from elemental powders by severe plastic deformation via high-pressure torsion (HPT) method well high-energy ball milling. Structural homogeneity, thermal stability temperature dependent on composition best performances achieved MgVCr...
In this study, we have investigated the synthesis, microstructure and hydrogen storage properties of Mg-based nanocomposites containing different concentrations TiCrV TiCr1.2V0.8 alloys. The Mg Ti-Cr-V additives were prepared by reactive milling (RM) under atmosphere. structural characterization revealed presence β-MgH2, γ-MgH2 BCC phases in powders samples after RM. addition, a very refined homogenous with average MgH2 crystallite size around 10-12 nm was observed, including nanometric...
In the last years, nanostructured metals prepared by severe plastic deformation (SPD) techniques have emerged as a promising class of advanced biomaterials for load-bearing applications such orthopedic implants. This is mainly because simultaneous improvements in mechanical and biocompatibility properties during creation nanostructures. article provides brief overview effects SPD producing nano/ultrafine-grained structures implant applications. The role microstructure refinement achieved its...