Nanometric size effects on irradiation of tin oxide powder

被引：68
作者：
Berthelot, A
Hémon, S
Gourbilleau, F
Dufour, C
Dooryhée, E
Paumier, E
机构：
[1] LERMAT, CNRS, Unite Associee 6004, F-14050 Caen, France
[2] CEA, CNRS, CIRIL, F-14040 Caen, France
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 146卷 / 1-4期
关键词：
irradiation; tin oxide; nanopowder; thermal spike; simulations;
D O I：
10.1016/S0168-583X(98)00517-5
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A nanometric powder of tin oxide (SnO2) has been irradiated with lead ions. The same grains have been observed by Transmission Electron Microscopy (TEM) before and after irradiation at a fluence of 5 x 10(12) Pb cm(-2). The shape of largest grains strongly changes while the smallest ones disappear. This phenomenon has been explained by using the thermal spike model. It appears that the irradiation induces an increase of the internal pressure in the grains leading to their explosion. In the smallest grains, the calculated maximal temperatures exceed the boiling point so that these grains disappear. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：437 / 442
页数：6
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