Migration and segregation of sodium under β-irradiation in nuclear glasses

被引：59

作者：

Boizot, B ^{[1
]}

Petite, G

Ghaleb, D

Pellerin, N

Fayon, F

Reynard, B

Calas, G

机构：

[1] CEA Saclay, Serv Rech Surfaces & Irradiat Mat, DRECAM, DSM, F-91191 Gif Sur Yvette, France

[2] CEA VAlrho, Serv Confinement Dechets, DCC, F-30207 Bagnols Sur Ceze, France

[3] CNRS, CRMHT, F-45071 Orleans, France

[4] ENS Lyon, CNRS UMR 5570, Lab Sci Terre, F-69634 Lyon 7, France

[5] Univ Paris 06, UA CNRS 09, Lab Mineral & Cristallog, F-75252 Paris 05, France

[6] Univ Paris 07, UA CNRS 09, Lab Mineral & Cristallog, F-75252 Paris 05, France

[7] IPGP, F-75252 Paris 05, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2000年 / 166卷

关键词：

glasses; Raman; nuclear magnetic resonance; X-ray Photoelectron spectroscopy; irradiation;

D O I：

10.1016/S0168-583X(99)00787-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Raman,B-11 Nuclear Magnetic Resonance (NMR) and X-ray Photoelectron (XPS) spectroscopy investigations have been made on a series of beta-irradiated aluminoborosilicate glasses. This work shows the following changes of the glass structure under beta-irradiation: (i) an increase of glass polymerization, (ii) an increase of boron in a trigonal environment and (iii) no modification in the aluminum environment during irradiation. These glass modifications under beta-irradiation can be correlated with the migration of sodium outside of the Si and B glass network formers, Moreover, XPS experiments show a strong decrease of the sodium concentration at the surface of these irradiated glasses. This study presents therefore strong evidences of migration and segregation processes of sodium during a beta-irradiation in thr bulk for these simplified aluminoborosilicate glass compositions. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：500 / 504

页数：5

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