Formability and thermal stability of α' phase in (Fe1-y Coy)-(B, C, N) films

被引：7
|
作者：
Sunaga, K
Kadowaki, S
Tsunoda, M
Takahashi, M
机构：
[1] Tohoku Univ, Dept Elect Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] Tohoku Univ, NICHe, Aoba Ku, Sendai, Miyagi 9808579, Japan
来源：
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 2004年 / 241卷 / 07期
关键词：
D O I：
10.1002/pssb.200304622
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In order to find a way to obtain stable alpha"-Fe16X2 phase, the formability and thermal stability of alpha' (bct) phase were discussed. According to a rigid sphere model, we concluded that the less formability of B for the a' phase is due to its large atomic radius. We elucidated the difference of thermal stability of alpha'-Fe-X, taking into account their decomposition process. While, the decomposition of alpha'-Fe-N progresses only by the migration of N, without changing the bone structure of Fe lattice, the additional energy is needed to break the original alpha-Fe lattice in the cases of alpha'-Fe-B and alpha'-Fe-C. Therefore thermal stability of alpha'-Fe-B and alpha'-Fe-C is higher than that of alpha'-Fe-N. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：1701 / 1705
页数：5
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