COMPUTER-SIMULATION OF FINAL-STAGE SINTERING .2. INFLUENCE OF INITIAL PORE-SIZE

被引：63

作者：

CHEN, IW ^{[1
]}

HASSOLD, GN ^{[1
]}

SROLOVITZ, DJ ^{[1
]}

机构：

[1] UNIV MICHIGAN,DEPT MAT SCI & ENGN,ANN ARBOR,MI 48109

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 10期

关键词：

computers; grain growth; microstructure; sintering; theory;

D O I：

10.1111/j.1151-2916.1990.tb06687.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A two‐dimensional Monte Carlo simulation procedure has been used to investigate the effect of the initial pore size on the microstructural evolution and the kinetics of final‐stage sintering. The sintering time scales with r40/Dgb and the grain‐growth time scales with r2O/Dm. Pores are found to effectively pin the grain boundaries from the beginning of final‐stage sintering at a porosity of Φ= 0.09 until Φ= 0.03. For Φ 0.03, the remaining pores do not effectively retard grain‐boundary migration and normal grain growth occurs. Small pores were found to be less effective at retarding grain growth than expected on the basis of a simple grain‐growth pinning model. The mean pore size was found to be nearly constant throughout the simulations. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：2865 / 2872

页数：8

共 17 条

[1] INHIBITION OF GRAIN-GROWTH BY 2ND PHASE PARTICLES - 3 DIMENSIONAL MONTE-CARLO COMPUTER-SIMULATIONS [J].