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Artículo
Toughening of complete solid solution cermets by graphite addition
(Elsevier, 2015)
(Ti0.95Ta0.05)(C0.5N0.5)-Co complete solid solution cermets (CSCs) were developed by a mechanochemical synthesis process and a pressureless sintering method. The effect of different percentages of graphite used as a sintering ...
Artículo
Chemical and structural investigation of the role of both Mn and Mn oxide in the formation of manganese silicate barrier layers on SiO2
(American Institute of Physics, 2011-09)
In this study, Mn silicate (MnSiO3) barrier layers were formed on thermally grown SiO2 using both metallic Mn and oxidized Mn films, in order to investigate the role of oxygen in determining the extent of the interaction ...
Artículo
Transfer of Individual Micro- and Nanoparticles for High- Precision 3D Analysis Using 360° Electron Tomography
(Wiley, 2018)
A versatile approach is demonstrated, providing a general routine for an extensive and advanced 3D characterization of individually selected micro- and nanoparticles, enabling the combination of complementary and scale-bridging ...
Artículo
Timing of calcium nitrate addition affects morphology, dispersity and composition of bioactive glass nanoparticles
(Royal Society of Chemistry, 2016)
Bioactive glass nanoparticles (BGN) are promising materials for a number of biomedical applications. Many parameters related to the synthesis of BGN using sol–gel methods can affect their characteristics. In this study, the ...
Artículo
Theoretical modelling of quaternary GaInAsSb/GaAs self-assembled quantum dots
(Institute of Physics Publishing, 2010)
InAs/GaAs quantum dots exposed to Sb after growth exhibit spectral changes. We study in the present paper an idealized nanostructure consisting of a homogeneous distribution of the quaternary GaInAsSb surrounded by a barrier ...
Artículo
Design, processing and characterization of titanium with radial graded porosity for bone implants porosity for bone implants
(Elsevier, 2016-07)
Titanium cylinders with radial graded porosity, which are potentially suitable for biomedical applications (replacement of cortical and trabecular bones involved in different joint and dental restorations), have been ...
Artículo
A new manual wheelchair propulsion system with self-locking capability on ramps
(Copernicus, 2018-11-08)
A wheelchair user faces many difficulties in their everyday attempts to use ramps, especially those of some length. The present work describes the design and build of a propulsion system for manual wheelchairs for use ...
Artículo
Study of the Influence of TiB Content and Temperature in the Properties of In Situ Titanium Matrix Composites
(MDPI, 2017-10-27)
This work focuses on the study of the microstructure, hardening, and stiffening effect caused by the secondary phases formed in titanium matrices. These secondary phases originated from reactions between the matrix and ...
Artículo
Analysis of the Influence of Starting Materials and Processing Conditions on the Properties of W/Cu Alloys
(MDPI, 2017)
In this work, a study of the influence of the starting materials and the processing time used to developW/Cu alloys is carried out. Regarding powder metallurgy as a promising fabrication route, the difficulties in ...
Artículo
Sol-gel deposition of hydroxyapatite coatings on porous titanium for biomedical applications
(Elsevier, 2018)
The stress shielding and the poor osseointegration in titanium implants are still problems to be resolved. In this context, this work proposes a balanced solution. Titanium samples were fabricated, with a porosity of ...