Film-forming investigation of NbC-modified HfC coating based on oxyacetylene ablation and argon-atmosphere heating above 2000 °C

Ruixiang He; Kezhi Li; Wenhao Zhang; Longqi Liu

doi:10.1016/j.corsci.2023.111303

Film-forming investigation of NbC-modified HfC coating based on oxyacetylene ablation and argon-atmosphere heating above 2000 °C

Ruixiang He, Kezhi Li, Wenhao Zhang, Longqi Liu

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

5 引用（Scopus）

摘要

Ablation test of NbC-modified HfC coatings using an oxyacetylene flame and heat treatment of HfO₂–Nb₂O₅ plates up to 2100 °C were performed. The results indicate that HfC-30 mol% NbC coating forms a dense oxide film comprising HfO₂ columnar crystals, achieving the best ablation property. At 2100 °C in an argon atmosphere, the solubility of niobium suboxide in HfO₂ is in the range 27–30 mol%, and the stable phases are HfO₂, Nb, and NbO. Nb–O liquids improve the transport of Hf and produce gradients of temperature and oxygen concentration, promoting the formation of a composite film under an oxyacetylene flame.

源语言	英语
文章编号	111303
期刊	Corrosion Science
卷	220
DOI	https://doi.org/10.1016/j.corsci.2023.111303
出版状态	已出版 - 1 8月 2023

访问文件

10.1016/j.corsci.2023.111303

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{ffb3301381d44aecaa2326337bddd01f,

title = "Film-forming investigation of NbC-modified HfC coating based on oxyacetylene ablation and argon-atmosphere heating above 2000 °C",

abstract = "Ablation test of NbC-modified HfC coatings using an oxyacetylene flame and heat treatment of HfO2–Nb2O5 plates up to 2100 °C were performed. The results indicate that HfC-30 mol% NbC coating forms a dense oxide film comprising HfO2 columnar crystals, achieving the best ablation property. At 2100 °C in an argon atmosphere, the solubility of niobium suboxide in HfO2 is in the range 27–30 mol%, and the stable phases are HfO2, Nb, and NbO. Nb–O liquids improve the transport of Hf and produce gradients of temperature and oxygen concentration, promoting the formation of a composite film under an oxyacetylene flame.",

keywords = "Ablation resistance, Carbon/carbon composites, Film-formation mechanism, HfC–NbC coating, Thermal stability",

author = "Ruixiang He and Kezhi Li and Wenhao Zhang and Longqi Liu",

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

year = "2023",

month = aug,

day = "1",

doi = "10.1016/j.corsci.2023.111303",

language = "英语",

volume = "220",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Film-forming investigation of NbC-modified HfC coating based on oxyacetylene ablation and argon-atmosphere heating above 2000 °C

AU - He, Ruixiang

AU - Li, Kezhi

AU - Zhang, Wenhao

AU - Liu, Longqi

PY - 2023/8/1

Y1 - 2023/8/1

N2 - Ablation test of NbC-modified HfC coatings using an oxyacetylene flame and heat treatment of HfO2–Nb2O5 plates up to 2100 °C were performed. The results indicate that HfC-30 mol% NbC coating forms a dense oxide film comprising HfO2 columnar crystals, achieving the best ablation property. At 2100 °C in an argon atmosphere, the solubility of niobium suboxide in HfO2 is in the range 27–30 mol%, and the stable phases are HfO2, Nb, and NbO. Nb–O liquids improve the transport of Hf and produce gradients of temperature and oxygen concentration, promoting the formation of a composite film under an oxyacetylene flame.

AB - Ablation test of NbC-modified HfC coatings using an oxyacetylene flame and heat treatment of HfO2–Nb2O5 plates up to 2100 °C were performed. The results indicate that HfC-30 mol% NbC coating forms a dense oxide film comprising HfO2 columnar crystals, achieving the best ablation property. At 2100 °C in an argon atmosphere, the solubility of niobium suboxide in HfO2 is in the range 27–30 mol%, and the stable phases are HfO2, Nb, and NbO. Nb–O liquids improve the transport of Hf and produce gradients of temperature and oxygen concentration, promoting the formation of a composite film under an oxyacetylene flame.

KW - Ablation resistance

KW - Carbon/carbon composites

KW - Film-formation mechanism

KW - HfC–NbC coating

KW - Thermal stability

UR - http://www.scopus.com/inward/record.url?scp=85160778019&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2023.111303

DO - 10.1016/j.corsci.2023.111303

M3 - 文章

AN - SCOPUS:85160778019

SN - 0010-938X

VL - 220

JO - Corrosion Science

JF - Corrosion Science

M1 - 111303

ER -

Film-forming investigation of NbC-modified HfC coating based on oxyacetylene ablation and argon-atmosphere heating above 2000 °C

摘要

访问文件

其它文件与链接

指纹

引用此