Comment on "Local vs. global approach in the analysis of sintering kinetics"

被引：2

作者：

Wakai, Fumihiro ^{[1
]}

机构：

[1] Tokyo Inst Technol, Secure Mat Ctr, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

来源：

SCRIPTA MATERIALIA | 2010年 / 62卷 / 02期

关键词：

Sintering; Micromechanical modeling; SURFACE-DIFFUSION; POWDER COMPACTS; GRAIN-BOUNDARY; EQUILIBRIUM; PRESSURE; STRESSES;

D O I：

10.1016/j.scriptamat.2009.09.035

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The sintering stress, which is the driving force of pore shrinkage in sintering, is evaluated by assessing the chemical potential difference in the system. For polycrystalline materials, a compressive normal traction, which is proportional to the grain boundary energy and inversely proportional to the grain size, arises from the force acting along grain boundary triple junctions. The sintering stress calculated by this local approach is the same as that obtained by the global approach. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：117 / 119

页数：3

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