Microstructural evolution analysis of NITE SiC/SiC composite using TEM examination and dual-ion irradiation

被引：33

作者：

Kishimoto, H. ^{[1
]}

Ozawa, K.

Hashitomi, O.

Kohyama, A.

机构：

[1] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan

[2] Kyoto Univ, Grad Sch Energy Sci, Kyoto 6110011, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 2007年 / 367卷

关键词：

D O I：

10.1016/j.jnucmat.2007.03.043

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Irradiation effects in a SiC/SiC composite reinforced by Tyranno-SA fibers and produced by an innovative processing method, nano-powder infiltration and transient eutectic phase (NITE) processing, were investigated. Dual-beam ion irradiation methods and energy-filtered transmission electron microscopy were used in the investigation. The NITE SiC matrix had dense, isotropic grains several hundreds nm in diameter. A small amount of secondary phases from residual additives were found within the SiC fiber bundles. Dual-ion irradiations achieved a dose of 60 dpa at 1200 degrees C. TEM investigatior showed no significant modification by irradiation in either the Tyranno-SA fibers or the NITE SiC matrix, except for a small amount of micro-cavity formation. The synergistic effects of heavy irradiation and helium atoms in NITE SiC/SiC composites at elevated temperature are discussed. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：748 / 752

页数：5

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