Abnormal grain growth mechanism in alumina

被引：2
作者：
Bang, Hee-Gon [1 ]
Song, Jun-Ho
Park, Sang-Yeup
机构：
[1] Kangnung Natl Univ, Dept Ceram Engn, Kangnung 210702, Kangwondo, South Korea
[2] Kangnung Natl Univ, Technol Innovat Fine Ceram, Kangnung 210702, Kangwondo, South Korea
来源：
ECO-MATERIALS PROCESSING & DESIGN VII | 2006年 / 510-511卷
关键词：
alumina; abnormal grain growth; nuclei; impurity;
D O I：
10.4028/www.scientific.net/MSF.510-511.474
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
During the sintering process, the onset of abnormal grain growth is depend on various factors. The abnormal grain growth behavior, however, was focused only the growth stage compared to nucleation stage. Because most of abnormal grain growth occurred to a rapid mode, the observation of abnormal grain growth was impossible. In this study, we intend to in-situ observe the nucleation stage of abnormal grain using porous alumina. As a result, the liquid phase due to unintended impurities plays a main role for the formation of abnormal nuclei by the rearrangement of small grains due to the capillary force.
引用
收藏
页码：474 / 477
页数：4
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