Atomic structure and cohesion

Atomic structure and cohesion

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In this chapter, the principal characteristics of surfaces of solids was discussed. This will help to understand their role in the cohesion of nanoparticles. The transition from solid state to nanoparticle is not abrupt. To verify it, the thermodynamic approach was used, in which the macroscopic concept of superficial tension remains valid. This top-down approach is interesting because it allows to understand the essential factors of the cohesion in nanoparticles, free or coated, or even constrained when they are encapsulated in a solid matrix. Thermodynamics is valid when the number of atoms in the nanoparticle is high, but it is not valid any more for small particles.

Inspec keywords: free energy; surface tension; atomic structure; nanoparticles; contact angle

Other keywords: cohesion; solid state-nanoparticle transition; atomic structure; superficial tension; Gibbs free energy; thermodynamic method

Subjects: Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials

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