Oxidation protection and behavior of in-situ zirconium diboride-silicon carbide coating for carbon/carbon composites

Lu Li; Hejun Li; Xuemin Yin; Yanhui Chu; Xi Chen; Qiangang Fu

doi:10.1016/j.jallcom.2015.04.215

Oxidation protection and behavior of in-situ zirconium diboride-silicon carbide coating for carbon/carbon composites

Lu Li, Hejun Li, Xuemin Yin, Yanhui Chu, Xi Chen, Qiangang Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

64 Scopus citations

Abstract

To protect carbon/carbon (C/C) composites against oxidation, zirconium diboride-silicon carbide (ZrB₂-SiC) coating was prepared by in-situ reaction using ZrC, B₄C and Si as raw materials. The in-situ ZrB₂-SiC coated C/C presented good oxidation resistance, whose weight loss was only 0.15% after isothermal oxidation at 1500 °C for 216 h. Microstructure evolution of coating at 1500 °C was studied, revealing a two-layered structure: (1) ZrO₂ (ZrSiO₄) embedded in SiO₂-rich glass, and (2) unaffected ZrB₂-SiC. The formation and collapse of bubbles influenced the coating oxidation greatly. A model based on the evolution of oxide scale was proposed to explain the failure mechanism of coating.

Original language	English
Pages (from-to)	164-170
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	645
DOIs	https://doi.org/10.1016/j.jallcom.2015.04.215
State	Published - 17 May 2015

Keywords

Ceramics
Coating materials
Oxidation
Scanning electron microscopy
SEM
X-ray diffraction

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@article{c2ae1dd155be44239a62cdfb06a69ded,

title = "Oxidation protection and behavior of in-situ zirconium diboride-silicon carbide coating for carbon/carbon composites",

abstract = "To protect carbon/carbon (C/C) composites against oxidation, zirconium diboride-silicon carbide (ZrB2-SiC) coating was prepared by in-situ reaction using ZrC, B4C and Si as raw materials. The in-situ ZrB2-SiC coated C/C presented good oxidation resistance, whose weight loss was only 0.15% after isothermal oxidation at 1500 °C for 216 h. Microstructure evolution of coating at 1500 °C was studied, revealing a two-layered structure: (1) ZrO2 (ZrSiO4) embedded in SiO2-rich glass, and (2) unaffected ZrB2-SiC. The formation and collapse of bubbles influenced the coating oxidation greatly. A model based on the evolution of oxide scale was proposed to explain the failure mechanism of coating.",

keywords = "Ceramics, Coating materials, Oxidation, Scanning electron microscopy, SEM, X-ray diffraction",

author = "Lu Li and Hejun Li and Xuemin Yin and Yanhui Chu and Xi Chen and Qiangang Fu",

year = "2015",

month = may,

day = "17",

doi = "10.1016/j.jallcom.2015.04.215",

language = "英语",

volume = "645",

pages = "164--170",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Oxidation protection and behavior of in-situ zirconium diboride-silicon carbide coating for carbon/carbon composites

AU - Li, Lu

AU - Li, Hejun

AU - Yin, Xuemin

AU - Chu, Yanhui

AU - Chen, Xi

AU - Fu, Qiangang

PY - 2015/5/17

Y1 - 2015/5/17

N2 - To protect carbon/carbon (C/C) composites against oxidation, zirconium diboride-silicon carbide (ZrB2-SiC) coating was prepared by in-situ reaction using ZrC, B4C and Si as raw materials. The in-situ ZrB2-SiC coated C/C presented good oxidation resistance, whose weight loss was only 0.15% after isothermal oxidation at 1500 °C for 216 h. Microstructure evolution of coating at 1500 °C was studied, revealing a two-layered structure: (1) ZrO2 (ZrSiO4) embedded in SiO2-rich glass, and (2) unaffected ZrB2-SiC. The formation and collapse of bubbles influenced the coating oxidation greatly. A model based on the evolution of oxide scale was proposed to explain the failure mechanism of coating.

AB - To protect carbon/carbon (C/C) composites against oxidation, zirconium diboride-silicon carbide (ZrB2-SiC) coating was prepared by in-situ reaction using ZrC, B4C and Si as raw materials. The in-situ ZrB2-SiC coated C/C presented good oxidation resistance, whose weight loss was only 0.15% after isothermal oxidation at 1500 °C for 216 h. Microstructure evolution of coating at 1500 °C was studied, revealing a two-layered structure: (1) ZrO2 (ZrSiO4) embedded in SiO2-rich glass, and (2) unaffected ZrB2-SiC. The formation and collapse of bubbles influenced the coating oxidation greatly. A model based on the evolution of oxide scale was proposed to explain the failure mechanism of coating.

KW - Ceramics

KW - Coating materials

KW - Oxidation

KW - Scanning electron microscopy

KW - SEM

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=84929329378&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2015.04.215

DO - 10.1016/j.jallcom.2015.04.215

M3 - 文章

AN - SCOPUS:84929329378

SN - 0925-8388

VL - 645

SP - 164

EP - 170

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Oxidation protection and behavior of in-situ zirconium diboride-silicon carbide coating for carbon/carbon composites

Abstract

Keywords

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