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Classification of Oxidation Behavior of Disilicides

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Title: Classification of Oxidation Behavior of Disilicides
Authors: Kurokawa, Kazuya Browse this author
Yamauchi, Akira Browse this author
Keywords: Disilicide
High temperature oxidation
Structure of oxide scale
Classification of oxidation behavior
Issue Date: 2007
Publisher: Trans Tech Publications
Journal Title: Designing of Interfacial Structures (Solid State Phenomena: 127)
Start Page: 227
End Page: 232
Abstract: This study focuses on classification of structures of oxide scales formed on disilicides. The oxide scales formed on disilicides can be grouped into 3 types, (a) silica scale, (b) mixed oxide (silica+metal oxide) scale, and (c) double layered (silica/metal oxide) scale. Disilicide that forms an oxide scale of the type (a) generally show excellent oxidation resistance. As such disilicides, there are FeSi2, CoSi2, MoSi2, WSi2, etc. In FeSi2 and CoSi2, a protective silica scale must be formed due to the selective oxidation of Si, whereas in MoSi2 and WSi2 evaporation of metal oxide plays an important role for the formation of a silica scale. Oxidation of TaSi2 and NbSi2 belonged to the type (b), and only CrSi2 the type (c).
Description: Proceedings of the International Workshop on Designing of Interfacial Structures in Advanced Materials and their Joints, May, 18-20, 2006, held in Osaka, Japan
Rights: the original is available online at www.scientific.net
Type: article (author version)
URI: http://hdl.handle.net/2115/17156
Appears in Collections:エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山内 啓

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