Monte carlo simulation of anisotropic growth of grains during liquid phase sintering for ceramics

Metalurgija

Zhang, C. F.¹  Li, J.² 

[1] College of Metallurgical Engineering, Hunan University of Technology, Zhuzhou, China;School of Metallurgy and Environment, Central South University, Changsha, China

关键词: Monte carlo simulation;    ceramic;    microstructure;    anisotropic growth;    liquid phase sintering;   

DOI  :  

学科分类：金属与冶金

来源: Hrvatsko Metalursko Drustvo

【 摘 要 】

An improved two-dimensional Q-State Monte Carlo Potts model for describing anisotropic growth of grains of ceramics is established. The sintering additives, pores, and second-phase particles introduced into the ceramic matrix have been fully considered in the new algorithm. Using this model, the influence of the second-phase particles on the microstructural evolution of ceramics with elongated grain morphology are investigated. Results show that the addition of the second-phase particles obviously hinders the anisotropic growth of grains, thereby resulting in a slightly decreased average grain size and grain growth exponent. The preliminary investigation indicates that the simulation results are in good agreement with the existing sintering kinetic theory.

【 授权许可】

CC BY