The thermal spike model: A possible way to describe the effects induced in Y2O3 by swift heavy ion irradiations

被引：9

作者：

Dufour, C ^{[1
]}

Hemon, S ^{[1
]}

Gourbilleau, F ^{[1
]}

Paumier, E ^{[1
]}

Dooryhee, E ^{[1
]}

机构：

[1] CIRIL, CNRS, CEA, F-14050 CAEN, FRANCE

来源：

MATERIALS SCIENCE APPLICATIONS OF ION BEAM TECHNIQUES | 1997年 / 248-2卷

关键词：

high energy irradiation; thermal spike; heavy ions; electronic energy loss; phase transformation; Y2O3;

D O I：

10.4028/www.scientific.net/MSF.248-249.21

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Micrometric powders of yttrium oxide have been irradiated with swift heavy ions. Due to the huge energy deposited by the 4.5MeV/u Lead ions on the target electrons, a phase transformation from cubic to monoclinic structure has been observed by X-ray diffraction. The irradiation with 11.5MeV/u Sulphur ions did not lead to such a transformation. An interpretation is given through the thermal spike model which gives the radius of a cylindrical track of monoclinic Y2O3 as a function of the electronic energy loss of the incident ion.

引用

页码：21 / 31

页数：11

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