Effect of magnesium oxide on faceted vicinal (0001) surface of aluminum oxide

被引：9

作者：

Park, CW ^{[1
]}

Yoon, DY

机构：

[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea

[2] Seoul Natl Univ, Coll Engn, Natl Creat Res Initiat Ctr Microstruct Sci Mat, Seoul 151742, South Korea

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2001年 / 84卷 / 02期

关键词：

D O I：

10.1111/j.1151-2916.2001.tb00678.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：

Atomic force microscopy has been used to observe the vicinal (0001) surface of Al2O3. The surface develops a hill-and-valley structure when heat-treated in air and becomes defaceted and therefore atomically rough when heat-treated in an MgO atmosphere at 1600 degreesC. The results are consistent with the previously observed polyhedral equilibrium shape of Al2O3 crystal and the surface roughening effect of MgO.

引用

页码：456 / 458

页数：3

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