Long-term oxidation of MoSi2-modified HfB2–SiC–Si/SiC–Si coating at 1700°C

Wuqing Ding; Lei Zhou; Jiaping Zhang; Qiangang Fu

doi:10.1080/02670844.2023.2223454

Long-term oxidation of MoSi₂-modified HfB₂–SiC–Si/SiC–Si coating at 1700°C

Wuqing Ding
, Lei Zhou
, Jiaping Zhang
, Qiangang Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian
Wuxi BoZhi Composite Material Co.LTD

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

9 Scopus citations

Abstract

Slurry impregnation and gaseous Si infiltration were effectively used to produce compact MoSi₂-doped Si–HfB₂–SiC/Si–SiC (HMSS/SS) coatings with a thickness of 250 μm to protect carbon fibre reinforced carbon (C_f/C) composites from oxygen corrosion at 1700°C. The HMSS/SS coating obtained with a mosaic structure makes it possible to protect C_f/C composites at 1700°C for 276 h and the mass reduction is only 0.99%. The pinning effect of the embedded hafnia, the generated MoB together with the Hf, Mo co-doped Si-based glass layer, which successfully prevented the migration of oxygen, was attributed to the superior oxidation protection ability of the HMSS/SS coatings. This work provides a practical method for successfully extending the service life of C_f/C composites in the aerospace industry.

Original language	English
Pages (from-to)	315-325
Number of pages	11
Journal	Surface Engineering
Volume	39
Issue number	3
DOIs	https://doi.org/10.1080/02670844.2023.2223454
State	Published - 2023

Keywords

C/C composites
MoB
coating
mosaic structure
oxidation behaviour at 1700°C
pinning effect
protection mechanism
slurry impregnation with gaseous Si infiltration

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10.1080/02670844.2023.2223454

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@article{241e8f9c4f7044e4b76a7550e5d9c342,

title = "Long-term oxidation of MoSi2-modified HfB2–SiC–Si/SiC–Si coating at 1700°C",

abstract = "Slurry impregnation and gaseous Si infiltration were effectively used to produce compact MoSi2-doped Si–HfB2–SiC/Si–SiC (HMSS/SS) coatings with a thickness of 250 μm to protect carbon fibre reinforced carbon (Cf/C) composites from oxygen corrosion at 1700°C. The HMSS/SS coating obtained with a mosaic structure makes it possible to protect Cf/C composites at 1700°C for 276 h and the mass reduction is only 0.99\%. The pinning effect of the embedded hafnia, the generated MoB together with the Hf, Mo co-doped Si-based glass layer, which successfully prevented the migration of oxygen, was attributed to the superior oxidation protection ability of the HMSS/SS coatings. This work provides a practical method for successfully extending the service life of Cf/C composites in the aerospace industry.",

keywords = "C/C composites, MoB, coating, mosaic structure, oxidation behaviour at 1700°C, pinning effect, protection mechanism, slurry impregnation with gaseous Si infiltration",

author = "Wuqing Ding and Lei Zhou and Jiaping Zhang and Qiangang Fu",

note = "Publisher Copyright: {\textcopyright} 2023 Institute of Materials, Minerals and Mining Published by Taylor \& Francis on behalf of the Institute.",

year = "2023",

doi = "10.1080/02670844.2023.2223454",

language = "英语",

volume = "39",

pages = "315--325",

journal = "Surface Engineering",

issn = "0267-0844",

publisher = "SAGE Publications Ltd",

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TY - JOUR

T1 - Long-term oxidation of MoSi2-modified HfB2–SiC–Si/SiC–Si coating at 1700°C

AU - Ding, Wuqing

AU - Zhou, Lei

AU - Zhang, Jiaping

AU - Fu, Qiangang

PY - 2023

Y1 - 2023

N2 - Slurry impregnation and gaseous Si infiltration were effectively used to produce compact MoSi2-doped Si–HfB2–SiC/Si–SiC (HMSS/SS) coatings with a thickness of 250 μm to protect carbon fibre reinforced carbon (Cf/C) composites from oxygen corrosion at 1700°C. The HMSS/SS coating obtained with a mosaic structure makes it possible to protect Cf/C composites at 1700°C for 276 h and the mass reduction is only 0.99%. The pinning effect of the embedded hafnia, the generated MoB together with the Hf, Mo co-doped Si-based glass layer, which successfully prevented the migration of oxygen, was attributed to the superior oxidation protection ability of the HMSS/SS coatings. This work provides a practical method for successfully extending the service life of Cf/C composites in the aerospace industry.

AB - Slurry impregnation and gaseous Si infiltration were effectively used to produce compact MoSi2-doped Si–HfB2–SiC/Si–SiC (HMSS/SS) coatings with a thickness of 250 μm to protect carbon fibre reinforced carbon (Cf/C) composites from oxygen corrosion at 1700°C. The HMSS/SS coating obtained with a mosaic structure makes it possible to protect Cf/C composites at 1700°C for 276 h and the mass reduction is only 0.99%. The pinning effect of the embedded hafnia, the generated MoB together with the Hf, Mo co-doped Si-based glass layer, which successfully prevented the migration of oxygen, was attributed to the superior oxidation protection ability of the HMSS/SS coatings. This work provides a practical method for successfully extending the service life of Cf/C composites in the aerospace industry.

KW - C/C composites

KW - MoB

KW - coating

KW - mosaic structure

KW - oxidation behaviour at 1700°C

KW - pinning effect

KW - protection mechanism

KW - slurry impregnation with gaseous Si infiltration

UR - https://www.scopus.com/pages/publications/85164500650

U2 - 10.1080/02670844.2023.2223454

DO - 10.1080/02670844.2023.2223454

M3 - 文章

AN - SCOPUS:85164500650

SN - 0267-0844

VL - 39

SP - 315

EP - 325

JO - Surface Engineering

JF - Surface Engineering

IS - 3

ER -

Long-term oxidation of MoSi₂-modified HfB₂–SiC–Si/SiC–Si coating at 1700°C

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Keywords

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