Laser ablation behavior of SiO2-Nd2O3/Si-SiC-MoSi2 coated C/C composites repaired by laser cladding

Han Hui Wang; Jing An Kong; Min Xu; Peng Fei Zhang; Li Yang; Xiao Hong Shi; He Jun Li

doi:10.1016/j.corsci.2022.110132

Laser ablation behavior of SiO₂-Nd₂O₃/Si-SiC-MoSi₂ coated C/C composites repaired by laser cladding

Han Hui Wang, Jing An Kong, Min Xu, Peng Fei Zhang, Li Yang, Xiao Hong Shi, He Jun Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

19 Scopus citations

Abstract

A SiO₂-Nd₂O₃/Si-SiC-MoSi₂ coating was proposed to repair the damaged SiC coated C/C composites by laser cladding. Laser ablation was performed to evaluate the effect of coating repair. Results showed that the preparation of the SiO₂-Nd₂O₃ outer layer could improve the laser ablation resistance of the specimens by weakening heat accumulation and enhancing heat consumption, which reduced the maximum temperature by 261.99 K and 694.75 K during ablation under 300 W and 500 W for 7 s. The growth of the ablative products, including the Si nanowires and SiO_x spherical particles, was based on vapor deposition and oxide-assisted growth mechanism.

Original language	English
Article number	110132
Journal	Corrosion Science
Volume	198
DOIs	https://doi.org/10.1016/j.corsci.2022.110132
State	Published - 15 Apr 2022

Keywords

Ablation behavior
C/C composites
Coating repair
Laser ablation
Laser cladding

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10.1016/j.corsci.2022.110132

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title = "Laser ablation behavior of SiO2-Nd2O3/Si-SiC-MoSi2 coated C/C composites repaired by laser cladding",

abstract = "A SiO2-Nd2O3/Si-SiC-MoSi2 coating was proposed to repair the damaged SiC coated C/C composites by laser cladding. Laser ablation was performed to evaluate the effect of coating repair. Results showed that the preparation of the SiO2-Nd2O3 outer layer could improve the laser ablation resistance of the specimens by weakening heat accumulation and enhancing heat consumption, which reduced the maximum temperature by 261.99 K and 694.75 K during ablation under 300 W and 500 W for 7 s. The growth of the ablative products, including the Si nanowires and SiOx spherical particles, was based on vapor deposition and oxide-assisted growth mechanism.",

keywords = "Ablation behavior, C/C composites, Coating repair, Laser ablation, Laser cladding",

author = "Wang, {Han Hui} and Kong, {Jing An} and Min Xu and Zhang, {Peng Fei} and Li Yang and Shi, {Xiao Hong} and Li, {He Jun}",

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doi = "10.1016/j.corsci.2022.110132",

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T1 - Laser ablation behavior of SiO2-Nd2O3/Si-SiC-MoSi2 coated C/C composites repaired by laser cladding

AU - Wang, Han Hui

AU - Kong, Jing An

AU - Xu, Min

AU - Zhang, Peng Fei

AU - Yang, Li

AU - Shi, Xiao Hong

AU - Li, He Jun

PY - 2022/4/15

Y1 - 2022/4/15

N2 - A SiO2-Nd2O3/Si-SiC-MoSi2 coating was proposed to repair the damaged SiC coated C/C composites by laser cladding. Laser ablation was performed to evaluate the effect of coating repair. Results showed that the preparation of the SiO2-Nd2O3 outer layer could improve the laser ablation resistance of the specimens by weakening heat accumulation and enhancing heat consumption, which reduced the maximum temperature by 261.99 K and 694.75 K during ablation under 300 W and 500 W for 7 s. The growth of the ablative products, including the Si nanowires and SiOx spherical particles, was based on vapor deposition and oxide-assisted growth mechanism.

AB - A SiO2-Nd2O3/Si-SiC-MoSi2 coating was proposed to repair the damaged SiC coated C/C composites by laser cladding. Laser ablation was performed to evaluate the effect of coating repair. Results showed that the preparation of the SiO2-Nd2O3 outer layer could improve the laser ablation resistance of the specimens by weakening heat accumulation and enhancing heat consumption, which reduced the maximum temperature by 261.99 K and 694.75 K during ablation under 300 W and 500 W for 7 s. The growth of the ablative products, including the Si nanowires and SiOx spherical particles, was based on vapor deposition and oxide-assisted growth mechanism.

KW - Ablation behavior

KW - C/C composites

KW - Coating repair

KW - Laser ablation

KW - Laser cladding

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U2 - 10.1016/j.corsci.2022.110132

DO - 10.1016/j.corsci.2022.110132

M3 - 文章

AN - SCOPUS:85123793753

SN - 0010-938X

VL - 198

JO - Corrosion Science

JF - Corrosion Science

M1 - 110132

ER -

Laser ablation behavior of SiO₂-Nd₂O₃/Si-SiC-MoSi₂ coated C/C composites repaired by laser cladding

Abstract

Keywords

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