【作者】 秦湘阁； 孙建波；

【Author】 Qin Xiang-ge1 , Sun Jian-bo1(1. Jiamusi University, Provincial Key Laboratory of Biomaterials, Jiamusi 154007, China)

【机构】 佳木斯大学生物医学材料省重点实验室；

【摘要】 本文描述和比较了陶瓷烧结的两种Monte Carlo Potts模型,一种是在我们的Sinter模型,另一种是Tikare模型。Sinter模型的特点是晶粒生长的模拟采用了Radhakrishnan等人改进的Monte Carlo算法[1]。为了控制晶粒长大的速度,提出了控制固相扩散频率的参数DS,DS<1,固相扩散要以DS为概率进行。在模拟烧结组织致密化过程时,我们采用了Tikare等人提出的空位湮灭的概念和算法[2]。提出了控制湮灭频率的参数DA,DA<1,空位湮灭要以DA为概率进行。Tikare模型的模拟结果受到晶粒状态总数Q的影响。最后比较了S模型和T模型的异同点。更多还原

【Abstract】 In this paper, we describe and compare two kinds of Monte Carlo Potts models in ceramic sintering. One is our Sinter model and the other is Tikare model. It is a character of Sinter model that the simulation of grain growth adopts the Monte Carlo algorithm modified by Radhakrishnan et al [1] . For controling the rate of grain growth, one paremeter, DS, which can be used to control the frequency of solid phrase diffusion is presented. DS<1, DS can be treated as the probability for solid phrase. The of densification of sintering stucture is simulated using the algorithm developed by V. Tikare et al[2], and we also present the other parameter, DA, which can be used to control the frequency of annihilation, DA<1.The total number of grain states, Q, have effects on the results simulated by Tikare model. At last, we compare the difference and common ground of the two models.更多还原