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
收藏
页码：748 / 752
页数：5
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