Interface reactions and control of diffusion at the interface between SiC fibres and layer of deposited Fe-9Cr base alloy

被引：6
|
作者：
Levchuk, S. [1 ]
Lindig, S. [1 ]
Brendel, A. [1 ]
Bolt, H. [1 ]
机构：
[1] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany
来源：
JOURNAL OF NUCLEAR MATERIALS | 2007年 / 367卷 / SPEC. ISS.期
关键词：
D O I：
10.1016/j.jnucmat.2007.03.225
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ferromagnetic 9Cr steel EUROFER 97 is considered as a structural material for the first wall of future fusion reactors. To solve a problem of limitation of the maximum operation temperature of 550 degrees C for EUROFER 97, a new metal matrix composite SiC/EUROFER 97 is proposed. To create a thermally stable interface between the SiC fibres and the steel matrix, the following interlayers were tested as a diffusion barrier: Cr, Re, W and Re/W. Samples with these interlayers were investigated before and after annealing at 750 degrees C which is supposed to be the operation temperature of the composite material. To simplify examination of the coatings using available analysis methods (SEM, IBA and XRD), the fibre/steel system was approximated by planar samples with identical layer structure. The experiments with both SiC fibres and planar substrates revealed W to be an efficient diffusion barrier. (c) 2007 Elsevier B.V. All rights reserved.
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页码：1233 / 1237
页数：5
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