Oxidation resistance of Mo coated with Mo(Si,Al) 2 layer prepared by dipping into liquid of Al-25 mass%Si alloy

Shinsuke Kunitsugu; Norihide Nishida; Takao Tomiya; Masahiro Nagae; Makoto Nakanishi; Tatsuo Fujii; Jun Takada

doi:10.2320/matertrans.46.215

Oxidation resistance of Mo coated with Mo(Si,Al) ₂ layer prepared by dipping into liquid of Al-25 mass%Si alloy

Shinsuke Kunitsugu, Norihide Nishida, Takao Tomiya, Masahiro Nagae, Makoto Nakanishi, Tatsuo Fujii, Jun Takada

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A homogeneous layer of molybdenum alumininosilicide Mo(Si,Al) ₂ with C(40) structure was made on the sample surface of molybdenum by dip-coating technique using Al-25mass%Si liquid at 1123K. Adherent Al-Si was removed by soaking the dipped samples in the NaOH saturated hydraulic solution. The Mo samples coated with the Mo(Si,Al) ₂ layer were found to have excellent oxidation resistance in air even at 1473 K due to formation of a dense alumina film on the sample surface during oxidation. The formation of Mo ₅(Si,Al) ₃ layer was also observed at the interface between the Mo substrate and the Mo(Si,Al) ₂ layer.

Original language	English
Pages (from-to)	215-218
Number of pages	4
Journal	Materials Transactions
Volume	46
Issue number	2
DOIs	https://doi.org/10.2320/matertrans.46.215
Publication status	Published - Feb 2005

Keywords

Aluminum-silicon alloy
Dip-coating
Molybdenum aluminosilicide
Oxidation resistance

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.2320/matertrans.46.215

Cite this

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title = "Oxidation resistance of Mo coated with Mo(Si,Al) 2 layer prepared by dipping into liquid of Al-25 mass%Si alloy",

abstract = "A homogeneous layer of molybdenum alumininosilicide Mo(Si,Al) 2 with C(40) structure was made on the sample surface of molybdenum by dip-coating technique using Al-25mass%Si liquid at 1123K. Adherent Al-Si was removed by soaking the dipped samples in the NaOH saturated hydraulic solution. The Mo samples coated with the Mo(Si,Al) 2 layer were found to have excellent oxidation resistance in air even at 1473 K due to formation of a dense alumina film on the sample surface during oxidation. The formation of Mo 5(Si,Al) 3 layer was also observed at the interface between the Mo substrate and the Mo(Si,Al) 2 layer.",

keywords = "Aluminum-silicon alloy, Dip-coating, Molybdenum aluminosilicide, Oxidation resistance",

author = "Shinsuke Kunitsugu and Norihide Nishida and Takao Tomiya and Masahiro Nagae and Makoto Nakanishi and Tatsuo Fujii and Jun Takada",

year = "2005",

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T1 - Oxidation resistance of Mo coated with Mo(Si,Al) 2 layer prepared by dipping into liquid of Al-25 mass%Si alloy

AU - Kunitsugu, Shinsuke

AU - Nishida, Norihide

AU - Tomiya, Takao

AU - Nagae, Masahiro

AU - Nakanishi, Makoto

AU - Fujii, Tatsuo

AU - Takada, Jun

PY - 2005/2

Y1 - 2005/2

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AB - A homogeneous layer of molybdenum alumininosilicide Mo(Si,Al) 2 with C(40) structure was made on the sample surface of molybdenum by dip-coating technique using Al-25mass%Si liquid at 1123K. Adherent Al-Si was removed by soaking the dipped samples in the NaOH saturated hydraulic solution. The Mo samples coated with the Mo(Si,Al) 2 layer were found to have excellent oxidation resistance in air even at 1473 K due to formation of a dense alumina film on the sample surface during oxidation. The formation of Mo 5(Si,Al) 3 layer was also observed at the interface between the Mo substrate and the Mo(Si,Al) 2 layer.

KW - Aluminum-silicon alloy

KW - Dip-coating

KW - Molybdenum aluminosilicide

KW - Oxidation resistance

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