Effect of Oxygen Partial Pressure on Formation of Fe2O3 Nanostructure during Thermal Oxidation

Jing Zhe Wang; C.H. Xu; Yu Fei You; Jun Peng Wang

doi:10.4028/www.scientific.net/AMR.734-737.2256

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 734-737Effect of Oxygen Partial Pressure on Formation of...

Effect of Oxygen Partial Pressure on Formation of Fe₂O₃ Nanostructure during Thermal Oxidation

Abstract:

In this paper, effect of oxygen partial pressure on formation of Fe₂O₃ nanostructure during Thermal Oxidation was studied. Fe₂O₃ nanostructure was formed by controlling oxidation conditions (Po₂) and using the method of thermal oxidation. To begin with, a piece of pure iron in a ceramic crucible was put in the tube furnace (SYS-G-Z-13). Next the metallic Fe was oxidized at 500°C for 4 hours, under different oxygen partial pressure including pure argon (Po₂= 0atm), air Po₂= 0.21atm) and pure oxygen (Po₂= 1atm) to produce nanostructure, respectively. The surface morphology of the oxidized specimens was observed by SEM. The crystalline structure of the nanostructure was determined by transmission electron microscope. The experimental results show that the density of nanosheets increases with increasing oxygen partial pressure.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

2256-2259

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.2256

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Online since:

August 2013

Authors:

Jing Zhe Wang, C.H. Xu*, Yu Fei You, Jun Peng Wang

Keywords:

Density, Fe₂O₃, Nanosheets, Oxygen Partial Pressure

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