The Lennard-Jones pair-potential shown in Figure 2 models the cohesive energy between atoms as a function of separation distance.
12.
Since atoms near the surface have fewer bonds and reduced cohesive energy, they require less energy to free from the solid phase.
13.
Each chemical bond an atom shares with a neighboring atom provides cohesive energy, so atoms with fewer bonds and neighboring atoms have lower cohesive energy.
14.
Each chemical bond an atom shares with a neighboring atom provides cohesive energy, so atoms with fewer bonds and neighboring atoms have lower cohesive energy.
15.
The interaction energy is attractive where the curve is negative, and the magnitude of the energy represents the cohesive energy between a pair of atoms.
16.
The bonds relax towards equilibrium lengths, increasing the cohesive energy per bond between atoms, independent of the exact form of the specific interatomic potential.
17.
However, the integrated cohesive energy for surface atoms is much lower than bulk atoms due to the reduced coordination number and overall decrease in cohesive energy.
18.
However, the integrated cohesive energy for surface atoms is much lower than bulk atoms due to the reduced coordination number and overall decrease in cohesive energy.
19.
Metallic unhexquadium should have a very large cohesive energy ( enthalpy of crystallization ) due to its covalent bonds, most probably resulting in a high melting point.
20.
The cohesive energy density is the amount of energy needed to completely remove unit volume of molecules from their neighbours to infinite separation ( an ideal gas ).
