Stability of α′′-Fe16N2 in hydrogenous atmospheres

Shinpei Yamamoto,Ruwan Gallage,Seiji Isoda,Yasunobu Ogata,Yoshihiro Kusano,Naoya Kobayashi,Tomoyuki Ogawa,Naoaki Hayashi,Migaku Takahashi,Mikio Takano

Stability of α′′-Fe16N2 in hydrogenous atmospheres

2014

Shinpei Yamamoto
Ruwan Gallage
Seiji Isoda
Yasunobu Ogata
Yoshihiro Kusano
Naoya Kobayashi
Tomoyuki Ogawa
Naoaki Hayashi
Migaku Takahashi
Mikio Takano

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.

Keywords:

Particle
Denitrification
Radiochemistry
Atmosphere
Instability
Coating
Inorganic chemistry
Chemistry

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