Oxygen behaviour during PIII-nitriding of aluminium

被引:12
作者
Manova, D [1 ]
Mändl, S
Rauschenbach, B
机构
[1] Univ Augsburg, Inst Expt Phys 4, D-86135 Augsburg, Germany
[2] Inst Oberflachenmodifizierung, D-04318 Leipzig, Germany
关键词
aluminium nitride; PIII; oxygen; ERDA;
D O I
10.1016/S0168-583X(00)00487-0
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
During nitrogen plasma immersion ion implantation (PIII) treatment of pure aluminium at elevated temperatures between 250 degreesC and 500 degreesC, a rather high oxygen concentration of up to 20 at.% is observed in the treated samples, despite a base pressure of 10(-5) Pa and a working pressure of 0.2 Pa. This behaviour is caused by oxygen uptake via surface defects created by the ion bombardment, as shown in a control experiment with Ar implantation. A thermally activated oxygen diffusion tail is observed for nitrogen implantation, which can be explained by the diffusion of Al cations in AIN. (C) 2001 Elsevier Science B.V. Ail rights reserved.
引用
收藏
页码:291 / 296
页数:6
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