Reply to “Comment on'Mechanochemical Continuum Modeling of Nanovoid Nucleation and Growth in Reacting Nanoparticles'″
VI Levitas, H Attariani - The Journal of Physical Chemistry C, 2012 - ACS Publications
The Journal of Physical Chemistry C, 2012•ACS Publications
The problem of the mechanisms of void nucleation in nanoparticles and related problem of
the stresses and their relaxation in nanoparticles are of significant importance and far from
being resolved. It is not surprising that there are several approaches with different and, in the
given case, opposite assumptions. Thus, in ref 1, surface tension is neglected, and
volumetric strain due to oxidation is introduced in the oxide shell. It is stated that for linear
lattice mismatch α≥ 0.3 large tensile stresses in a metal core are sufficient for void …
the stresses and their relaxation in nanoparticles are of significant importance and far from
being resolved. It is not surprising that there are several approaches with different and, in the
given case, opposite assumptions. Thus, in ref 1, surface tension is neglected, and
volumetric strain due to oxidation is introduced in the oxide shell. It is stated that for linear
lattice mismatch α≥ 0.3 large tensile stresses in a metal core are sufficient for void …
The problem of the mechanisms of void nucleation in nanoparticles and related problem of the stresses and their relaxation in nanoparticles are of significant importance and far from being resolved. It is not surprising that there are several approaches with different and, in the given case, opposite assumptions. Thus, in ref 1, surface tension is neglected, and volumetric strain due to oxidation is introduced in the oxide shell. It is stated that for linear lattice mismatch α≥ 0.3 large tensile stresses in a metal core are sufficient for void nucleation. 1. Let us estimate radial stress in a metal core required for void nucleation according to eq 14 in ref 1 σ α σ
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