High-temperature oxidation resistance and high emissivity of a novel NbSi2/SiO2-Nb2O5/MoSi2-Yb2O3 multilayer coating on Nb substrate for thermal protection

Zhao Wang; Yaming Wang; Shuqi Wang; Yongchun Zou; Guoliang Chen; Lei Wen; Guangxi Zhang; Lina Zhao; Jiahu Ouyang; Dechang Jia; Yu Zhou

doi:10.1016/j.corsci.2023.111519

High-temperature oxidation resistance and high emissivity of a novel NbSi₂/SiO₂-Nb₂O₅/MoSi₂-Yb₂O₃ multilayer coating on Nb substrate for thermal protection

Zhao Wang
, Yaming Wang^*
, Shuqi Wang
, Yongchun Zou
, Guoliang Chen
, Lei Wen
, Guangxi Zhang
, Lina Zhao
, Jiahu Ouyang
, Dechang Jia
, Yu Zhou

^*Corresponding author for this work

Harbin Institute of Technology
University of Science and Technology Beijing
Academy of Aerospace Propulsion Technology

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

21 Scopus citations

Abstract

To develop anti-oxidation and high emissivity coatings on Nb alloys for thermal protection systems, the NbSi₂/SiO₂-Nb₂O₅/MoSi₂-xYb₂O₃ (0, 10, 20, and 30 wt%) multilayer coatings are prepared by a two-step method. The NbSi₂/SiO₂-Nb₂O₅/MoSi₂-20Yb₂O₃ coating possesses the smallest oxidation mass gain (4.86 mg/cm²) at 1200 °C for 100 h and is the best oxidation resistance of the four coatings. The appropriate Yb³⁺ filles the SiO₂ network voids, enhancing the Si-O bond and raising the viscosity of the SiO₂ scale, thus further blocking oxygen diffusion. The coatings with Yb₂O₃ below 20 wt% achieve an emissivity of ∼0.9 at room temperature and still reach ∼0.7 at 1200 °C, showing excellent radiant thermal protection.

Original language	English
Article number	111519
Journal	Corrosion Science
Volume	224
DOIs	https://doi.org/10.1016/j.corsci.2023.111519
State	Published - Nov 2023

Keywords

High temperature emissivity
Multilayer structure
Nb alloys
Oxidation resistance
Silicide coating

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10.1016/j.corsci.2023.111519

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@article{131ad4250a4742879850d0b5b7a80ad4,

title = "High-temperature oxidation resistance and high emissivity of a novel NbSi2/SiO2-Nb2O5/MoSi2-Yb2O3 multilayer coating on Nb substrate for thermal protection",

abstract = "To develop anti-oxidation and high emissivity coatings on Nb alloys for thermal protection systems, the NbSi2/SiO2-Nb2O5/MoSi2-xYb2O3 (0, 10, 20, and 30 wt\%) multilayer coatings are prepared by a two-step method. The NbSi2/SiO2-Nb2O5/MoSi2-20Yb2O3 coating possesses the smallest oxidation mass gain (4.86 mg/cm2) at 1200 °C for 100 h and is the best oxidation resistance of the four coatings. The appropriate Yb3+ filles the SiO2 network voids, enhancing the Si-O bond and raising the viscosity of the SiO2 scale, thus further blocking oxygen diffusion. The coatings with Yb2O3 below 20 wt\% achieve an emissivity of ∼0.9 at room temperature and still reach ∼0.7 at 1200 °C, showing excellent radiant thermal protection.",

keywords = "High temperature emissivity, Multilayer structure, Nb alloys, Oxidation resistance, Silicide coating",

author = "Zhao Wang and Yaming Wang and Shuqi Wang and Yongchun Zou and Guoliang Chen and Lei Wen and Guangxi Zhang and Lina Zhao and Jiahu Ouyang and Dechang Jia and Yu Zhou",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = nov,

doi = "10.1016/j.corsci.2023.111519",

language = "英语",

volume = "224",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - High-temperature oxidation resistance and high emissivity of a novel NbSi2/SiO2-Nb2O5/MoSi2-Yb2O3 multilayer coating on Nb substrate for thermal protection

AU - Wang, Zhao

AU - Wang, Yaming

AU - Wang, Shuqi

AU - Zou, Yongchun

AU - Chen, Guoliang

AU - Wen, Lei

AU - Zhang, Guangxi

AU - Zhao, Lina

AU - Ouyang, Jiahu

AU - Jia, Dechang

AU - Zhou, Yu

PY - 2023/11

Y1 - 2023/11

N2 - To develop anti-oxidation and high emissivity coatings on Nb alloys for thermal protection systems, the NbSi2/SiO2-Nb2O5/MoSi2-xYb2O3 (0, 10, 20, and 30 wt%) multilayer coatings are prepared by a two-step method. The NbSi2/SiO2-Nb2O5/MoSi2-20Yb2O3 coating possesses the smallest oxidation mass gain (4.86 mg/cm2) at 1200 °C for 100 h and is the best oxidation resistance of the four coatings. The appropriate Yb3+ filles the SiO2 network voids, enhancing the Si-O bond and raising the viscosity of the SiO2 scale, thus further blocking oxygen diffusion. The coatings with Yb2O3 below 20 wt% achieve an emissivity of ∼0.9 at room temperature and still reach ∼0.7 at 1200 °C, showing excellent radiant thermal protection.

AB - To develop anti-oxidation and high emissivity coatings on Nb alloys for thermal protection systems, the NbSi2/SiO2-Nb2O5/MoSi2-xYb2O3 (0, 10, 20, and 30 wt%) multilayer coatings are prepared by a two-step method. The NbSi2/SiO2-Nb2O5/MoSi2-20Yb2O3 coating possesses the smallest oxidation mass gain (4.86 mg/cm2) at 1200 °C for 100 h and is the best oxidation resistance of the four coatings. The appropriate Yb3+ filles the SiO2 network voids, enhancing the Si-O bond and raising the viscosity of the SiO2 scale, thus further blocking oxygen diffusion. The coatings with Yb2O3 below 20 wt% achieve an emissivity of ∼0.9 at room temperature and still reach ∼0.7 at 1200 °C, showing excellent radiant thermal protection.

KW - High temperature emissivity

KW - Multilayer structure

KW - Nb alloys

KW - Oxidation resistance

KW - Silicide coating

UR - https://www.scopus.com/pages/publications/85171348403

U2 - 10.1016/j.corsci.2023.111519

DO - 10.1016/j.corsci.2023.111519

M3 - 文章

AN - SCOPUS:85171348403

SN - 0010-938X

VL - 224

JO - Corrosion Science

JF - Corrosion Science

M1 - 111519

ER -

High-temperature oxidation resistance and high emissivity of a novel NbSi₂/SiO₂-Nb₂O₅/MoSi₂-Yb₂O₃ multilayer coating on Nb substrate for thermal protection

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