Open AccessA STUDY OF OXIDATION PROCESS ON Fe-SURFACE
Author(s) -
Chen Yun-Qi,
Zhien Lin,
Wu Shu-Yao,
Qi Shang-Xue,
Xinke Wu
Publication year - 1987
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.36.1375
Subject(s) - partial pressure , oxidation process , x ray photoelectron spectroscopy , torr , oxygen , materials science , desorption , process (computing) , crystallite , partial oxidation , oxygen pressure , chemical engineering , analytical chemistry (journal) , metallurgy , chemistry , thermodynamics , adsorption , environmental chemistry , computer science , organic chemistry , physics , engineering , operating system
The early oxidation process of pure Fe was studied by XPS, UPS and AES. When the temperature and partial pressure of oxygen is not too high, the product of the reaction between polycrystalline Fe and oxygen is pure Fe3O4, but not FeO or a-Fe2O3 or a structure of layers of the three compounds. If the temperature is higher than 600℃ and the partial pressure of oxygen approach 1 × 10-6 Torr, the thermo-desorption process occurs instead of oxidation process on polystalline Fe surface.