Initial oxidation behavior of Ni $_{3}$ Al(210) surface induced by supersonic oxygen molecular beam at room temperature

Xu, Y.*; Demura, Masahiko*; Teraoka, Yuden; Yoshigoe, Akitaka ; Sakurai, Junya*; Hirano, Toshiyuki*

The initial oxidation behavior of a clean Ni $_{3}$ Al (210) surface was studied at 300 K using a supersonic O $_{2}$ molecular beam (O $_{2}$ SSMB) having an O $_{2}$ translational energy of 2.3 eV, and real-time photoemission spectroscopy performed with high-brilliance synchrotron radiation. The evolution behaviors of the O 1s, Ni 2p, Al 2p, and Ni 3p spectra were examined over time during irradiation with the O $_{2}$ SSMB. The spectral analysis revealed that both the Al atoms and the Ni atoms on the surface were oxidized; however, the oxidation of Al progressed much faster than that of Ni.

Language	:	English
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Meeting title	:	31st European Conference on Surface Science (ECOSS-31)
Held date	:	2015/08
Location (city)	:	Barcelona
Location (country)	:	Spain
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Keywords	:	放射光光電子分光; NiAl合金表面; 酸化
Research Facility	:	SPring-8(大型放射光施設)
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Registration No. : BB20151063
JAEA Abstracts No. :
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Initial oxidation behavior of NiAl(210) surface induced by supersonic oxygen molecular beam at room temperature

Initial oxidation behavior of Ni $_{3}$ Al(210) surface induced by supersonic oxygen molecular beam at room temperature