CONDITIONS OF THE ENTRY OF SOLID PARTICLES INTO MELT AND INFLUENCE FACTORS ON IT

The conditions of the entry of solid particles the melt and influence factors on it were discussed. The thermodynamic condition of a solid particle entering the melt was established, which illustrated that the condition of a particle completely entering the melt spontaneously is zero contact angle and an energy barrier must be overcome even if the contact angle is less than π/2. The critical particle size, equation of work and kinetic condition needed for particles to completely enter the melt were also obtained.