Processes such as coalescence, sintering, and evaporation depend on the surface tension. We have evaluated the surface tension of free gold nanoparticles from the size-dependent evaporation data. A value of 8.78 N/m has been obtained, which is in very good agreement with other theoretical models, and the values deduced from the size-dependent lattice parameter. The value of surface tension on the sintering process of gold nanoparticles is discussed.
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Nanda et al. (2008) studied this question.
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