Fracture of the Surface Layers of Alumina Ceramics under the Action of a High-Power Ion Beam of Nanosecond Duration

被引:1
|
作者
Kovivchak, V. S. [1 ]
Panova, T. V. [1 ]
机构
[1] Dostoevsky Omsk State Univ, Omsk 644077, Russia
来源
JOURNAL OF SURFACE INVESTIGATION | 2019年 / 13卷 / 06期
关键词
high-power ion beam; alumina ceramic; surface morphology; fracture; composition; SINGLE-CRYSTAL SILICON; ALLOY;
D O I
10.1134/S1027451019060363
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The fracture of surface layers of alumina ceramic (polycor) under the action of a high-power ion beam of nanosecond duration is investigated. The characteristic features of such fracture are determined. An estimation of the thickness of breakaway fragments of the surface layer of the ceramics gives values in the range from 4 to 12 mu m at single high-power ion beam irradiation with a current density of 150 A/cm(2). Oxygen depletion in the surface layer of the ceramics is established. The effect of irradiation on the structural-phase state of the ceramics is considered. The possible mechanisms of the observed fracture are discussed.
引用
收藏
页码:1252 / 1255
页数:4
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