Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si2N2O ceramic

Zhihua Yang; Yangshan Sun; Delong Cai; Bingzhu Wang; Dechang Jia

doi:10.1016/j.ceramint.2019.08.221

Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si₂N₂O ceramic

Zhihua Yang
, Yangshan Sun^*
, Delong Cai
, Bingzhu Wang
, Dechang Jia

^*Corresponding author for this work

School of Materials Science and Engineering

State Key Laboratory of Advanced Technology for Float Glass
Harbin Institute of Technology

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

7 Scopus citations

Abstract

Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si₂N₂O ceramic substrate were investigated. The coated sample was fractured after 18 thermal shock cycles without peeling off of the coating, while the porous BN/Si₂N₂O ceramic was fractured after 3 thermal shock cycles. The coated sample has a balter thermal shock resistance than the substrate sample, which can be attributed to the strong interface bonding, the cracks self-healing and thermal barrier of the coating. The ablation surface temperature, mass and linear ablation rates of the porous BN/Si₂N₂O ceramic were all reduced by the coating, indicating that the substrate had a good ablation resistance under the protection of the coating. In the ablation atmosphere of high-temperature-speed oxyacalylene flame, thermochemical reactions, melting loss, and coupling balween them are the ablation mechanism of the coating/substrate composite.

Original language	English
Pages (from-to)	24793-24801
Number of pages	9
Journal	Ceramics International
Volume	45
Issue number	18
DOIs	https://doi.org/10.1016/j.ceramint.2019.08.221
State	Published - 15 Dec 2019

Keywords

Ablation
Glass-ceramic coating
Thermal shock
α-cordierite

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10.1016/j.ceramint.2019.08.221

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@article{b60be04aa16b4ee9ba3793df7c30b824,

title = "Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si2N2O ceramic",

abstract = "Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si2N2O ceramic substrate were investigated. The coated sample was fractured after 18 thermal shock cycles without peeling off of the coating, while the porous BN/Si2N2O ceramic was fractured after 3 thermal shock cycles. The coated sample has a balter thermal shock resistance than the substrate sample, which can be attributed to the strong interface bonding, the cracks self-healing and thermal barrier of the coating. The ablation surface temperature, mass and linear ablation rates of the porous BN/Si2N2O ceramic were all reduced by the coating, indicating that the substrate had a good ablation resistance under the protection of the coating. In the ablation atmosphere of high-temperature-speed oxyacalylene flame, thermochemical reactions, melting loss, and coupling balween them are the ablation mechanism of the coating/substrate composite.",

keywords = "Ablation, Glass-ceramic coating, Thermal shock, α-cordierite",

author = "Zhihua Yang and Yangshan Sun and Delong Cai and Bingzhu Wang and Dechang Jia",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",

year = "2019",

month = dec,

day = "15",

doi = "10.1016/j.ceramint.2019.08.221",

language = "英语",

volume = "45",

pages = "24793--24801",

journal = "Ceramics International",

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TY - JOUR

T1 - Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si2N2O ceramic

AU - Yang, Zhihua

AU - Sun, Yangshan

AU - Cai, Delong

AU - Wang, Bingzhu

AU - Jia, Dechang

PY - 2019/12/15

Y1 - 2019/12/15

N2 - Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si2N2O ceramic substrate were investigated. The coated sample was fractured after 18 thermal shock cycles without peeling off of the coating, while the porous BN/Si2N2O ceramic was fractured after 3 thermal shock cycles. The coated sample has a balter thermal shock resistance than the substrate sample, which can be attributed to the strong interface bonding, the cracks self-healing and thermal barrier of the coating. The ablation surface temperature, mass and linear ablation rates of the porous BN/Si2N2O ceramic were all reduced by the coating, indicating that the substrate had a good ablation resistance under the protection of the coating. In the ablation atmosphere of high-temperature-speed oxyacalylene flame, thermochemical reactions, melting loss, and coupling balween them are the ablation mechanism of the coating/substrate composite.

AB - Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si2N2O ceramic substrate were investigated. The coated sample was fractured after 18 thermal shock cycles without peeling off of the coating, while the porous BN/Si2N2O ceramic was fractured after 3 thermal shock cycles. The coated sample has a balter thermal shock resistance than the substrate sample, which can be attributed to the strong interface bonding, the cracks self-healing and thermal barrier of the coating. The ablation surface temperature, mass and linear ablation rates of the porous BN/Si2N2O ceramic were all reduced by the coating, indicating that the substrate had a good ablation resistance under the protection of the coating. In the ablation atmosphere of high-temperature-speed oxyacalylene flame, thermochemical reactions, melting loss, and coupling balween them are the ablation mechanism of the coating/substrate composite.

KW - Ablation

KW - Glass-ceramic coating

KW - Thermal shock

KW - α-cordierite

UR - https://www.scopus.com/pages/publications/85071662313

U2 - 10.1016/j.ceramint.2019.08.221

DO - 10.1016/j.ceramint.2019.08.221

M3 - 文章

AN - SCOPUS:85071662313

SN - 0272-8842

VL - 45

SP - 24793

EP - 24801

JO - Ceramics International

JF - Ceramics International

IS - 18

ER -

Thermal shock and ablation behavior of α-cordierite glass-ceramic coating on porous BN/Si₂N₂O ceramic

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Keywords

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