放电等离子体烧结陶瓷材料微观组织演变模拟  

Simulation of microstrcture evolution of ceramic materials by spark plasma sintering

作　　者：周景纬 ZHOU Jingwei(Shanghai Vocational College of Arts and Crafts,Institute of Handicraft,Shanghai 200030,China)

机构地区：[1]上海工艺美术职业学院手工艺术学院,上海200030

出　　处：《粘接》2022年第3期47-50,共4页Adhesion

摘　　要：研究Matlab仿真环境下加载Moore控件,构建放电等离子体烧结陶瓷刀具无边界四方二维仿真环境,对用于高精密切削的陶瓷刀具微观组织进行基于元胞自动机的仿真模拟。结果发现:增加烧结温度、保温时间,均有助于促进陶瓷微观晶粒生长,提升其致密度;但随着烧结温度、保温时间的增加,其致密度增幅持续下降收敛。说明在当前工艺条件下,选择1700℃烧结环境和20 min保温时间,可以达到最佳工艺效果。In the MATLAB simulation environment,loading Moore control,the boundaryless quadrilateral two-dimensional simulation environment of spark plasma sintering ceramic tool was constructed,and the microstructure of ceramic tool used for high precision cutting was simulated based on cellular automata.It is found that increasing the sintering temperature and holding time can promote the growth of micro grains and increase the density.However,with the increase of sintering temperature and holding time,the increase of the above parameters continued to decrease and converge.Finally,it is considered that under the current process conditions,the best process effect can be achieved by choosing 1700℃sintering environment and 20 min holding time.

关 键 词：放电等离子体烧结 陶瓷刀具 高精密切削 元胞自动机 仿真分析 致密度 

分 类 号：TM425[电气工程—电器]