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HomeMaterials Science ForumMaterials Science Forum Vol. 833Study on the Preparation and High Temperature...

Study on the Preparation and High Temperature Oxidation Resistance of Mo(Si,Al)₂ Layer on the Mo Surface

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Abstract:

A layer of Mo (Si,Al)₂ was prepared on the sample surface of Mo substrate by powder coating method using Al-Si mixed powder and then diffusion reaction in argon atmosphere at 900°C. The results of oxidation resistance showed that the Mo samples coated with the Mo (Si,Al)₂ layer had an excellent oxidation resistance in air even at 1200°C. The reason of oxidation resistance is the formation of a dense alumina film on the sample surface. Therefore, the further oxidization of the sample can be prevented. In addition, The formation of Mo₅(Si,Al)₃ layer was also observed at the interface between the Mo substrate and the Mo (Si,Al)₂ layer.

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Applied Materials and Technologies

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Periodical:

Materials Science Forum (Volume 833)

Pages:

173-176

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.833.173

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Online since:

November 2015

Authors:

Xue Li, Gong Hao Lu*, Dong Ying Ju, Hong Yang Zhao, Jun Takada

Keywords:

High-Temperature Oxidation Resistance, Mo (Si,Al)₂, Powder Coating Method

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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