The effect of γ-radiation in Li4SiO4 ceramic breeder blankets

被引：11

作者：

Carella, E. ^{[1
,2
]}

Hernandez, T. ^{[2
]}

机构：

[1] UNED Fdn, Madrid 28010, Spain

[2] CIEMAT, Natl Fus Lab, E-28040 Madrid, Spain

来源：

FUSION ENGINEERING AND DESIGN | 2015年 / 90卷

关键词：

Irradiation effect; Electrical impedance spectroscopy; Ionic diffusion; Solid breeder blanket; Orthosilicate ceramic; Gamma-radiation; ELECTRICAL DEGRADATION; LITHIUM ORTHOSILICATE; IONIC-CONDUCTIVITY; TRITIUM RELEASE; MODULES; REACTOR; ITER;

D O I：

10.1016/j.fusengdes.2014.11.010

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Lithium orthosilicate (Li4SiO4) is considered one of the best candidates for the solid breeder blanket system (BBs) of future thermonuclear reactors. During reactor operation it will be bombarded by neutrons and gamma radiation which may alter its composition and properties, affecting its shielding role. The electrochemical impedance spectroscopy (EIS) is here used as a non-destructive tool for monitoring the electrical bulk conductivity of Li4SiO4 ceramic after different ionizing damaging treatments. The compound fabricated in our laboratories, was irradiated by a Co-60 in the Nayade-facility (CIEMAT-Spain). Several studies with slight experimental variations were realized and here presented to understand the dynamic of the charge carriers' movement and the role of intrinsic and extrinsic defects on the electrical properties of this candidate ceramic. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：73 / 78

页数：6

共 29 条

[1] IN-SITU TRITIUM RELEASE (CORELLI-2 EXPERIMENT) AND EX-REACTOR IONIC-CONDUCTIVITY OF SUBSTOICHIOMETRIC LIALO2 BREEDER CERAMICS [J].