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Influence of Ion Implantation of Several Elements on Oxidation Behavior of TiAl
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Isothermal Oxidation of Sintered β-FeSi2 in Air
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Isothermal Oxidation of Sintered β-FeSi2 in Air

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Abstract:

High-temperature oxidation of sintered β-FeSi2 doped with Mn and Co was evaluated at 800°C in air. Amorphous SiO2 was developed as an oxide scale. Granular ε-FeSi also appeared below the SiO2 scale as a result of consumption of Si in β-FeSi2. Growth of the oxide scale on doped FeSi2 followed a parabolic law and its rate was similar to oxidation of undoped samples. Thermoelectric properties of sintered β-FeSi2 were also evaluated before and after oxidation at 800°C for 7 days. There was no significant change in thermoelectric properties after high-temperature oxidation on β-FeSi2 sintered bodies.

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Periodical:

Materials Science Forum (Volumes 522-523)

Pages:

641-648

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.522-523.641

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Online since:

August 2006

Authors:

Makoto Nanko, Se Hun Chang, Koji Matsumaru, Kozo Ishizaki, Masatoshi Takeda

Keywords:

Oxidation Rates, SiO2, Thermoelectric Material, β-FeSi2, ε-FeSi

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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