Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/48163

TitleDetermination of the thickness of the embedding phase in 0D nanocomposites
Author(s)Martínez Martinez, Diego
Sánchez-López, Juan Carlos
KeywordsNanocomposite
Tessellation
Embedding
Grain
Crystal
Grain boundary thickness
Issue dateNov-2017
PublisherElsevier B.V.
JournalApplied Surface Science
Abstract(s)0D nanocomposites formed by small nanoparticles embedded in a second phase are very interesting systems which may show properties that are beyond those observed in the original constituents alone. One of the main parameters to understand the behavior of such nanocomposites is the determination of the separation between two adjacent nanoparticles, in other words, the thickness of the embedding phase. However, its experimental measurement is extremely complicated. Therefore, its evaluation is performed by an indirect approach using geometrical models. The ones typically used represent the nanoparticles by cubes or spheres.In this paper the used geometrical models are revised, and additional geometrical models based in other parallelohedra (hexagonal prism, rhombic and elongated dodecahedron and truncated octahedron) are presented. Additionally, a hybrid model that shows a transition between the spherical and tessellated models is proposed. Finally, the different approaches are tested on a set of titanium carbide/amorphous carbon (TiC/a-C) nanocomposite films to estimate the thickness of the a-C phase and explain the observed hardness properties.
Typearticle
URIhttp://hdl.handle.net/1822/48163
DOI10.1016/j.apsusc.2016.12.081
ISSN0169-4332
Peer-Reviewedyes
AccessrestrictedAccess
Appears in Collections:CDF - GRF - Artigos/Papers (with refereeing)

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