ON THE FACETING OF CERAMIC SURFACES

被引：80

作者：

HEFFELFINGER, JR ^{[1
]}

BENCH, MW ^{[1
]}

CARTER, CB ^{[1
]}

机构：

[1] UNIV MINNESOTA, DEPT CHEM ENGN & MAT SCI, MINNEAPOLIS, MN 55455 USA

来源：

SURFACE SCIENCE | 1995年 / 343卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

ALUMINUM OXIDE; ATOMIC FORCE MICROSCOPY; ELECTRON MICROSCOPY; FACETING; OXIDES;

D O I：

10.1016/0039-6028(95)00896-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A model is proposed by which ceramic surfaces change from hat vicinal surfaces into those of a faceted hill-and-valley structure. This model is based on scanning electron microscopy, transmission electron microscopy and atomic-force microscopy observations of facet formation on annealed (<10(1)over bar0>) alpha-alumina surfaces. The progression of surface faceting starts with the nucleation and growth of an individual facet. The growth of this facet creates local surface disturbances that promote the nucleation of adjacent facets; thus, domains of faceted surface form on the otherwise smooth surface. Through time, these domains coalesce and the facets coarsen into the final hill-and-valley morphology.

引用

页码：L1161 / L1166

页数：6

共 12 条

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