Deposition of Cr-modified silicide coatings on Nb-Si system intermetallics

Chen Chen; Chungen Zhou; Shengkai Gong; Shusuo Li; Yue Zhang; Huibin Xu

doi:10.1016/j.intermet.2006.10.033

Deposition of Cr-modified silicide coatings on Nb-Si system intermetallics

Chen Chen
, Chungen Zhou
, Shengkai Gong
, Shusuo Li
, Yue Zhang
, Huibin Xu^*

^*Corresponding author for this work

Beihang University

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

50 Scopus citations

Abstract

In order to improve the oxidation resistance of Nb-Si system intermetallics, silicide was deposited on the substrate by molten salt or by pack cementation, and Cr was deposited by pack cementation. Phase and microstructure were observed by scanning electro microscope (SEM), X-ray diffraction (XRD) and energy diffusion spectrum (EDS). It was found that phases of NbSi₂, CrSi₂, Cr₂Nb were formed. The result showed that the high temperature oxidation resistance of the Nb-Si system intermetallics will be improved by applying the Cr doped Si coatings. Maybe it was attributed by the formation of SiO₂ and Cr₂O₃ which could prevent the penetration of oxygen into the inner coatings and the substrate.

Original language	English
Pages (from-to)	805-809
Number of pages	5
Journal	Intermetallics
Volume	15
Issue number	5-6
DOIs	https://doi.org/10.1016/j.intermet.2006.10.033
State	Published - May 2007

Keywords

B. Diffusion
B. Oxidation
C. Coatings, intermetallic and otherwise
C. Vapour deposition
D. Microstructure

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10.1016/j.intermet.2006.10.033

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title = "Deposition of Cr-modified silicide coatings on Nb-Si system intermetallics",

abstract = "In order to improve the oxidation resistance of Nb-Si system intermetallics, silicide was deposited on the substrate by molten salt or by pack cementation, and Cr was deposited by pack cementation. Phase and microstructure were observed by scanning electro microscope (SEM), X-ray diffraction (XRD) and energy diffusion spectrum (EDS). It was found that phases of NbSi2, CrSi2, Cr2Nb were formed. The result showed that the high temperature oxidation resistance of the Nb-Si system intermetallics will be improved by applying the Cr doped Si coatings. Maybe it was attributed by the formation of SiO2 and Cr2O3 which could prevent the penetration of oxygen into the inner coatings and the substrate.",

keywords = "B. Diffusion, B. Oxidation, C. Coatings, intermetallic and otherwise, C. Vapour deposition, D. Microstructure",

author = "Chen Chen and Chungen Zhou and Shengkai Gong and Shusuo Li and Yue Zhang and Huibin Xu",

year = "2007",

month = may,

doi = "10.1016/j.intermet.2006.10.033",

language = "英语",

volume = "15",

pages = "805--809",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

number = "5-6",

}

TY - JOUR

T1 - Deposition of Cr-modified silicide coatings on Nb-Si system intermetallics

AU - Chen, Chen

AU - Zhou, Chungen

AU - Gong, Shengkai

AU - Li, Shusuo

AU - Zhang, Yue

AU - Xu, Huibin

PY - 2007/5

Y1 - 2007/5

N2 - In order to improve the oxidation resistance of Nb-Si system intermetallics, silicide was deposited on the substrate by molten salt or by pack cementation, and Cr was deposited by pack cementation. Phase and microstructure were observed by scanning electro microscope (SEM), X-ray diffraction (XRD) and energy diffusion spectrum (EDS). It was found that phases of NbSi2, CrSi2, Cr2Nb were formed. The result showed that the high temperature oxidation resistance of the Nb-Si system intermetallics will be improved by applying the Cr doped Si coatings. Maybe it was attributed by the formation of SiO2 and Cr2O3 which could prevent the penetration of oxygen into the inner coatings and the substrate.

AB - In order to improve the oxidation resistance of Nb-Si system intermetallics, silicide was deposited on the substrate by molten salt or by pack cementation, and Cr was deposited by pack cementation. Phase and microstructure were observed by scanning electro microscope (SEM), X-ray diffraction (XRD) and energy diffusion spectrum (EDS). It was found that phases of NbSi2, CrSi2, Cr2Nb were formed. The result showed that the high temperature oxidation resistance of the Nb-Si system intermetallics will be improved by applying the Cr doped Si coatings. Maybe it was attributed by the formation of SiO2 and Cr2O3 which could prevent the penetration of oxygen into the inner coatings and the substrate.

KW - B. Diffusion

KW - B. Oxidation

KW - C. Coatings, intermetallic and otherwise

KW - C. Vapour deposition

KW - D. Microstructure

UR - https://www.scopus.com/pages/publications/34247158112

U2 - 10.1016/j.intermet.2006.10.033

DO - 10.1016/j.intermet.2006.10.033

M3 - 文章

AN - SCOPUS:34247158112

SN - 0966-9795

VL - 15

SP - 805

EP - 809

JO - Intermetallics

JF - Intermetallics

IS - 5-6

ER -

Deposition of Cr-modified silicide coatings on Nb-Si system intermetallics

Abstract

Keywords

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