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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
Alumina doped Fe2O3 foams by freeze-casting for redox cycling applications
(Elsevier, 2022-10)
Hydrogen is the next energy vector for a decarbonization society but industrial production is still methane-based. The Steam Iron Process (SIP) could provide a carbon-free production and safety storage option. Here, we ...
Artículo
Pore morphology evolution and atom distribution of doped Fe2O3 foams developed by freeze-casting after redox cycling
(Elsevier Editora Ltda, 2021)
Chemical looping water splitting systems operate at relatively high temperatures (450–800 °C) to produce, purify, or store hydrogen by the cyclic reduction and oxidation (redox) of a solid oxygen carrier. Therefore, to ...
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
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 ...
Artículo
Study of the Effect of the Floating Die Compaction on Mechanical Properties of Titanium Foams
(MDPI, 2020-12)
Titanium (Ti) and its alloys are used for biomedical applications because of their high resistance to corrosion, good strength-to-weight ratio, and high fatigue resistance. However, a problem that compromises the performance ...
Artículo
Synthesis of a cubic Ti(BCN) advanced ceramic by a solid-gas mechanochemical reaction
(Elsevier, 2019-02)
In this work, a titanium boron carbonitride advanced ceramic was successfully synthesised by a solid-gas mechanochemical reaction in a planetary ball mill from a mixture of elemental Ti, B, and C under nitrogen atmosphere. ...
Artículo
Green hydrogen production using doped Fe2O3 foams
(Elsevier, 2023)
Hydrogen is the ideal energy vector to reduce our fossil-fuels dependency and diminish the climate change consequence. However, current production is still methane based. It is possible to produce hydrogen using bioethanol ...
Artículo
Kinetics of high-temperature oxidation of (Ti,Ta)(CN)-based cermets
(Elsevier, 2016)
The kinetics of the high-temperature oxidation of titanium–tantalum carbonitride-based cermets with different Ti/Ta ratios was studied. Isothermal oxidation tests were conducted under static air for 48 h at temperatures ...
Artículo
Effect of processing parameters on the properties of freeze-cast Ni wick with gradient porosity
(Elsevier Ltd, 2021)
Wicks are the main component of Loop Heat Pipe systems, whereby coolant liquid flow through their porous structure. They are usually formed by a primary wick to produce liquid transportation by capillary force, and a ...