中图分类号：TG711；TG113；TH140.7文献标志码：A

Equilibrium Morphology Evolution and Neck Growth of Particles during Sintering

Pai Junjun，Fang Bin

Abstract:The evolution of microstructure and neck growth of ceramic material particles during the sintering process in three dimensional space are simulated by Surface Evolver program.Based on the classical Kuczynski twosphere model，the boundary motion of particlesis simulated in order to reduce the particle boundary energy to obtain the final equilibrium configuration.The simulation results show that two spherical particles form a bond by sharing a flat interface and an energy stable particle pair are formed in the sintering process.With the decrease of the distance of the center of mass，the energy of the double spherical particle system decrease first and then increase.Neck growth is significant and the evolution of particle neck size with the simulation time is linear.

Keywords:solid sintering；sintering neck；Surface Evolver；mass transfer mechanism