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.

引用

页码：1233 / 1237

页数：5

共 28 条

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