Phase-field simulation of process in sintering ceramics

Liangliang Liu, Feng Gao, Bo Li, Guoxin Hu

科研成果: 书/报告/会议事项章节会议稿件同行评审

6 引用 (Scopus)

摘要

A phase field model is used to describe the microstructural development during the ceramic sintering. The evolution of the density is governed by Cahn-Hilliard equation, while the long-range order (lro) parameter fields by the time-dependent Ginzburg-Landau equation. In the simulation, green microstructures that consist of circular particles with different particle-size distributions and green densities have been produced by the stochastic growth model. The porosity of 25.6% was considered. The formation and growth of sintering neck, the seal, spheroidization as well as disappearance of pores and growth of grains are observed during simulation. The simulation results show grain boundary diffusion and surface diffusion are the dominate mechanism at the initial sintering stage. The predicted growth exponent of sintering neck and grain is consistent with the existing theoretical analysis.

源语言英语
主期刊名Materials Processing Technologies
1674-1679
页数6
DOI
出版状态已出版 - 2011
活动2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010 - Shenzhen, 中国
期限: 6 11月 20108 11月 2010

出版系列

姓名Advanced Materials Research
154-155
ISSN(印刷版)1022-6680

会议

会议2010 International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2010
国家/地区中国
Shenzhen
时期6/11/108/11/10

指纹

探究 'Phase-field simulation of process in sintering ceramics' 的科研主题。它们共同构成独一无二的指纹。

引用此