A5051055071- Cultural Heritage Materials Analysis
- Shape Memory Alloy Transformations
- Archaeology and ancient environmental studies
- Metallurgy and Cultural Artifacts
- X-ray Spectroscopy and Fluorescence Analysis
- Archaeological and Geological Studies
- Archaeological and Historical Studies
- Metal and Thin Film Mechanics
- Microstructure and Mechanical Properties of Steels
- High Entropy Alloys Studies
- Medieval Architecture and Archaeology
- Corrosion Behavior and Inhibition
- Aluminum Alloys Composites Properties
- Metal Alloys Wear and Properties
- Advanced materials and composites
- Advanced Welding Techniques Analysis
- Hydrogen embrittlement and corrosion behaviors in metals
- Aluminum Alloy Microstructure Properties
- Powder Metallurgy Techniques and Materials
- Metallurgy and Material Forming
- Nuclear Physics and Applications
- Metallurgical Processes and Thermodynamics
- Titanium Alloys Microstructure and Properties
- Electron and X-Ray Spectroscopy Techniques
- Ancient and Medieval Archaeology Studies
Centro Universitário do Maranhão
2024
University of Trás-os-Montes and Alto Douro
2018-2024
Universidade Nova de Lisboa
2014-2023
University of Lisbon
2010-2023
Polytechnic Institute of Porto
2018
University of Beira Interior
2018
Departamento de Ciência e Tecnologia
2006-2016
Faculdade de Tecnologia e Ciências
2015
Instituto Superior Técnico
2013
Institut des Matériaux Jean Rouxel
2003
Novel bionanocomposite films of chitosan/montmorillonite (CS/MMT) activated with ginger essential oil (GEO) were produced and characterized in terms their physical morphological properties. The homogenization process led to a good interaction between the chitosan nanoparticles, however exfoliation was diminished when GEO incorporated. Film glass transition temperature did not statistically change incorporation either MMT or GEO, value slightly reduced, representing relaxation polymer chain...
Surface metal matrix composites offer an excellent solution for applications where surface properties play a crucial role in components’ performance and durability, such as greater corrosion resistance, better wear high formability. Solid-state processing techniques, friction surfacing stir welding/processing, several advantages over conventional liquid-phase methods. This research investigated the feasibility of producing aluminium-based dissimilar alloys reinforced with functional...
Abstract A new variant of friction stir processing named upward (UFSP) is a promising approach to control particles’ distribution and promote more uniform over larger processed area. This involves using two sheets with functional particles between them produce metallic composites. spacer used ensure the desired quantity prevent sputtering. technique promotes an flow introduce in volume, avoiding discrete holes or grooves. study involved enhancing by varying process parameters. The resulting...
Abstract Different Mediterranean Basin limestones, like Calcário Ançã (Portugal), Lioz Piedra San Cristobal (Spain), Escúzar (Spain) and Pietra di Lecce (Italy), have been widely used as building materials in the European architecture. The aim of this study was focused on biodeterioration, mainly evaluation primary bioreceptivity those materials. A set samples inoculated with a cultured photosynthetic biofilm under laboratory conditions. Several assessment tools were applied to monitor...
Abstract Studies on cultural metal artifacts can benefit greatly from microscopy techniques. The examination of microstructural features provide relevant information about ancient manufacturing techniques, as well corrosion/degradation processes. In the present work, advantages use multifocus imaging techniques in optical for study archaeological metals are presented. An archaeometallurgical a large collection bronzes demonstrates possibility with no need sample removal, which is great...
Abstract A diachronic view of the metallurgy in Portuguese territory during first three millennia after its appearance Iberian Peninsula is presented based on current state art. Results micro‐energy dispersive X‐ray fluorescence (micro‐EDXRF) analyses made metal artefacts to determine their composition and scanning electron microscopy with energy analysis (SEM‐EDS) study microstructural features as inclusions are shown illustrate trends specificities each chronological period. Generally,...
Syntactic Functionally Graded Metal Matrix Composites (SFGMMC) are a type of composites reinforced by microballoons exhibiting graded reinforcement distribution. These materials constitute promising new generation lightweight structural for aerospace, marine and shielding/insulation applications. In this work, A356 alloy with silica-alumina (SiO2-Al2O3) was processed casting techniques. The influence the microballoon distribution gradient on corrosion behaviour composite investigated...