Effect of Lu2O3 addition on the oxidation behavior of SiC-ZrB2 composite coating at 1500 ℃: Experimental and theoretical study

Wei Xie; Qiangang Fu; Chunyu Cheng; Peipei Wang; Jie Li; Ningning Yan

doi:10.1016/j.corsci.2021.109803

Effect of Lu₂O₃ addition on the oxidation behavior of SiC-ZrB₂ composite coating at 1500 ℃: Experimental and theoretical study

Wei Xie, Qiangang Fu, Chunyu Cheng, Peipei Wang, Jie Li, Ningning Yan

School of Materials Sience and Engineering

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

13 Scopus citations

Abstract

The effect of Lu₂O₃ on the oxidation behavior of SiC-ZrB₂ composite coating at 1500 ℃ in static air was investigated by oxidation test and first-principles simulations. The Lu₂O₃-SiC-ZrB₂ composite coating protected C/C composites from oxidation at 1500 ℃ for 836 h with a mass gain of only 0.62 mg/cm². The introduction of Lu₂O₃ was beneficial for improving the densification of Lu₂O₃-SiC-ZrB₂ composite coating. The experimental and first-principles simulations results suggest that Zr and Lu atoms tended to diffuse into the SiO₂ network, which further developed the stability of SiO₂ structure, thus leading to a good oxidation resistance of the Lu₂O₃-SiC-ZrB₂ composite coating.

Original language	English
Article number	109803
Journal	Corrosion Science
Volume	192
DOIs	https://doi.org/10.1016/j.corsci.2021.109803
State	Published - Nov 2021

Keywords

Carbon/carbon composites
First-principles simulations
LuO
Oxidation resistance

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10.1016/j.corsci.2021.109803

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title = "Effect of Lu2O3 addition on the oxidation behavior of SiC-ZrB2 composite coating at 1500 ℃: Experimental and theoretical study",

abstract = "The effect of Lu2O3 on the oxidation behavior of SiC-ZrB2 composite coating at 1500 ℃ in static air was investigated by oxidation test and first-principles simulations. The Lu2O3-SiC-ZrB2 composite coating protected C/C composites from oxidation at 1500 ℃ for 836 h with a mass gain of only 0.62 mg/cm2. The introduction of Lu2O3 was beneficial for improving the densification of Lu2O3-SiC-ZrB2 composite coating. The experimental and first-principles simulations results suggest that Zr and Lu atoms tended to diffuse into the SiO2 network, which further developed the stability of SiO2 structure, thus leading to a good oxidation resistance of the Lu2O3-SiC-ZrB2 composite coating.",

keywords = "Carbon/carbon composites, First-principles simulations, LuO, Oxidation resistance",

author = "Wei Xie and Qiangang Fu and Chunyu Cheng and Peipei Wang and Jie Li and Ningning Yan",

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year = "2021",

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doi = "10.1016/j.corsci.2021.109803",

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TY - JOUR

T1 - Effect of Lu2O3 addition on the oxidation behavior of SiC-ZrB2 composite coating at 1500 ℃

T2 - Experimental and theoretical study

AU - Xie, Wei

AU - Fu, Qiangang

AU - Cheng, Chunyu

AU - Wang, Peipei

AU - Li, Jie

AU - Yan, Ningning

PY - 2021/11

Y1 - 2021/11

N2 - The effect of Lu2O3 on the oxidation behavior of SiC-ZrB2 composite coating at 1500 ℃ in static air was investigated by oxidation test and first-principles simulations. The Lu2O3-SiC-ZrB2 composite coating protected C/C composites from oxidation at 1500 ℃ for 836 h with a mass gain of only 0.62 mg/cm2. The introduction of Lu2O3 was beneficial for improving the densification of Lu2O3-SiC-ZrB2 composite coating. The experimental and first-principles simulations results suggest that Zr and Lu atoms tended to diffuse into the SiO2 network, which further developed the stability of SiO2 structure, thus leading to a good oxidation resistance of the Lu2O3-SiC-ZrB2 composite coating.

AB - The effect of Lu2O3 on the oxidation behavior of SiC-ZrB2 composite coating at 1500 ℃ in static air was investigated by oxidation test and first-principles simulations. The Lu2O3-SiC-ZrB2 composite coating protected C/C composites from oxidation at 1500 ℃ for 836 h with a mass gain of only 0.62 mg/cm2. The introduction of Lu2O3 was beneficial for improving the densification of Lu2O3-SiC-ZrB2 composite coating. The experimental and first-principles simulations results suggest that Zr and Lu atoms tended to diffuse into the SiO2 network, which further developed the stability of SiO2 structure, thus leading to a good oxidation resistance of the Lu2O3-SiC-ZrB2 composite coating.

KW - Carbon/carbon composites

KW - First-principles simulations

KW - LuO

KW - Oxidation resistance

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U2 - 10.1016/j.corsci.2021.109803

DO - 10.1016/j.corsci.2021.109803

M3 - 文章

AN - SCOPUS:85114943242

SN - 0010-938X

VL - 192

JO - Corrosion Science

JF - Corrosion Science

M1 - 109803

ER -

Effect of Lu₂O₃ addition on the oxidation behavior of SiC-ZrB₂ composite coating at 1500 ℃: Experimental and theoretical study

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Keywords

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