Stability of α''-Fe16N2 in hydrogenous atmospheres.
We revealed the inherent instability of α''-Fe16N2 in hydrogenous atmospheres due to the denitrification toward α-Fe by forming NH3 at the particle surface. Coating the particle surface with SiO2 to suppress the formation of NH3 has proven to be a simple yet powerful method to enhance the stability of α''-Fe16N2 in hydrogenous atmospheres.
Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida Ushinomiya, Sakyo, Kyoto 606-8501, Japan. yamamoto@icems.kyoto-u.ac.jp.
Shinpei
S
Yamamoto
Ruwan
R
Gallage
Seiji
S
Isoda
Yasunobu
Y
Ogata
Yoshihiro
Y
Kusano
Naoya
N
Kobayashi
Tomoyuki
T
Ogawa
Naoaki
N
Hayashi
Migaku
M
Takahashi
Mikio
M
Takano