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Artículo
Does grain size have an influence on intrinsic mechanical properties and conduction mechanism of near fully-dense boron carbide ceramics?
(Elsevier, 2019)
This work is concentrated on getting a reply to the following question: how does the grain size of boron carbide specimens influence on their mechanical and electrical response? It is a common issue that both essential ...
Artículo
Microstructure, interfaces and properties of 3YTZP ceramic composites with 10 and 20 vol% different graphene-based nanostructures as fillers
(Elsevier, 2019)
The graphene family comprises not only single layer graphene but also graphene-based nanomaterials (GBN), with remarkably different number of layers, lateral dimension and price. In this work, two of these GBN, namely ...
Artículo
Tribological behavior of graphene nanoplatelet reinforced 3YTZP composites
(Elsevier, 2019)
The tribological behavior of graphene nanoplatelet (GNP) reinforced 3 mol% yttria tetragonal zirconia polycrystals (3YTZP) composites with different GNP content (2.5, 5 and 10 vol%) was analyzed and discussed. Their dry ...
Artículo
Graphene nanoplatelets for electrically conductive 3YTZP composites densified by pressureless sintering
(Elsevier, 2019)
3 mol% yttria tetragonal zirconia polycrystalline (3YTZP) ceramic composites with 2.5, 5 and 10 vol% graphene nanoplatelets (GNP) were pressureless sintered in argon atmosphere between 1350 and 1450 °C. The effects of the ...
Artículo
An Electrochemical Evaluation of Nitrogen-doped Carbons as Anodes for Lithium Ion Batteries
(Elsevier, 2020)
New anode materials beyond graphite are needed to improve the performance of lithium ion batteries (LIBs). Chemical doping with nitrogen has emerged as a simple strategy for enhancing lithium storage in carbon-based anodes. ...
Artículo
Mg2SiO4-MgAl2O4 Directionally Solidified Eutectics: Hardness Dependence Modelled Through an Array of Screw Dislocations
(Elsevier, 2020)
Mg2SiO4-MgAl2O4 eutectic ceramics have been fabricated by means of the laser floating zone (LFZ) technique. The microstructure has revealed as an unusual one at lower growth rate, composed of broken lamellae of MgAl2O4 ...
Artículo
Microstructure and Thermal Conductivity of Si-Al-C-O Fiber Bonded Ceramics Joined to Refractory Metals
(Elsevier, 2020)
We explore joining Si-Al-C-O fiber-bonded ceramics to Cu-clad-Mo using an Ag-Ti-Cu brazing alloy. A temperature of 900 °C and times in the range of 10–20 min are required to obtain sound joints irrespectively of the fiber ...
Artículo
Effect of the crystal chemistry on the hydration mechanism of swelling micas
(Elsevier, 2017)
Swelling and dehydration under minor changes in temperature and water vapor pressure is an important property that clays and clay minerals exhibit. In particular, their interlayer space, the solid-water interface and the ...