Prediction of the surface and interface stress of metallic elements

Interfacial melting mechanism of nanocrystals determined by interfacial energy and interfacial stress

“…When the nanocrystals are surrounded by more high exponential facets or cavities are formed in the grain, the coordination number will be reduced and the bond contraction between atoms in the gain will be intensified, which ultimately leads to the increase of f sl . 45…”

“…When the nanocrystals are surrounded by more high exponential facets or cavities are formed in the grain, the coordination number will be reduced and the bond contraction between atoms in the gain will be intensified, which ultimately leads to the increase of f sl . 45 According to eqn (8.1) there must have T i m ( D ) < T m ( D ) where T i m ( D ) shows the melting temperature of irregular nanocrystals.…”

Size effect on Debye temperature of metal crystals

“…30,31 Recently, we proposed an analytical expression for γ sl , which successfully predicted the solid/liquid interface energy of various metal elements by introducing bulk evaporation entropy S b instead of S vib , γ sl can be expressed as: 32 where H m shows the melting enthalpy, V m and R denote the mole volume and ideal gas constant. Since , 33,34 with κ being the compressibility, substitute eqn (4) into this expression we have: 35 According to eqn (2) and (3), we get:…”