Relationship analyses on environmental factors-ablation performance based on ZrC-TaC system: Oxygen partial pressure and gas flow scouring

Dou Hu; Yutai Zhang; Zhijie Dong; Hanhui Wang; Qiangang Fu

doi:10.1016/j.jeurceramsoc.2023.01.022

Relationship analyses on environmental factors-ablation performance based on ZrC-TaC system: Oxygen partial pressure and gas flow scouring

Dou Hu
, Yutai Zhang
, Zhijie Dong
, Hanhui Wang
, Qiangang Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

19 Scopus citations

Abstract

For better understanding on effects of ablation environmental factors (oxygen partial pressure P(O₂) and gas flow scouring), multiple experiments and multiscale simulations based on thermally sprayed ZrC-TaC system were conducted. High P(O₂) was found helpful to accelerate Ta₂O₅/ZrO₂ mutual diffusion by variable P(O₂) oxidation at 1500 ℃ (5–50 kPa). Effects of gas flow scouring was evaluated by flow filed simulation coupling laser and oxyacetylene ablations, from which its promotion effect on Ta₂O₅/ZrO₂ diffusion efficiency was found. The increased Ta₂O₅/ZrO₂ diffusion efficiency will accelerate the structure instability of Ta doped c-ZrO₂ skeletons due to Zr-O bond length extension around Ta atoms.

Original language	English
Pages (from-to)	2331-2344
Number of pages	14
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.01.022
State	Published - Jun 2023

Keywords

Ablation
C/C composites
First principal calculation
TaC
ZrC

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10.1016/j.jeurceramsoc.2023.01.022

Cite this

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title = "Relationship analyses on environmental factors-ablation performance based on ZrC-TaC system: Oxygen partial pressure and gas flow scouring",

abstract = "For better understanding on effects of ablation environmental factors (oxygen partial pressure P(O2) and gas flow scouring), multiple experiments and multiscale simulations based on thermally sprayed ZrC-TaC system were conducted. High P(O2) was found helpful to accelerate Ta2O5/ZrO2 mutual diffusion by variable P(O2) oxidation at 1500 ℃ (5–50 kPa). Effects of gas flow scouring was evaluated by flow filed simulation coupling laser and oxyacetylene ablations, from which its promotion effect on Ta2O5/ZrO2 diffusion efficiency was found. The increased Ta2O5/ZrO2 diffusion efficiency will accelerate the structure instability of Ta doped c-ZrO2 skeletons due to Zr-O bond length extension around Ta atoms.",

keywords = "Ablation, C/C composites, First principal calculation, TaC, ZrC",

author = "Dou Hu and Yutai Zhang and Zhijie Dong and Hanhui Wang and Qiangang Fu",

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

year = "2023",

month = jun,

doi = "10.1016/j.jeurceramsoc.2023.01.022",

language = "英语",

volume = "43",

pages = "2331--2344",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "6",

}

TY - JOUR

T1 - Relationship analyses on environmental factors-ablation performance based on ZrC-TaC system

T2 - Oxygen partial pressure and gas flow scouring

AU - Hu, Dou

AU - Zhang, Yutai

AU - Dong, Zhijie

AU - Wang, Hanhui

AU - Fu, Qiangang

PY - 2023/6

Y1 - 2023/6

N2 - For better understanding on effects of ablation environmental factors (oxygen partial pressure P(O2) and gas flow scouring), multiple experiments and multiscale simulations based on thermally sprayed ZrC-TaC system were conducted. High P(O2) was found helpful to accelerate Ta2O5/ZrO2 mutual diffusion by variable P(O2) oxidation at 1500 ℃ (5–50 kPa). Effects of gas flow scouring was evaluated by flow filed simulation coupling laser and oxyacetylene ablations, from which its promotion effect on Ta2O5/ZrO2 diffusion efficiency was found. The increased Ta2O5/ZrO2 diffusion efficiency will accelerate the structure instability of Ta doped c-ZrO2 skeletons due to Zr-O bond length extension around Ta atoms.

AB - For better understanding on effects of ablation environmental factors (oxygen partial pressure P(O2) and gas flow scouring), multiple experiments and multiscale simulations based on thermally sprayed ZrC-TaC system were conducted. High P(O2) was found helpful to accelerate Ta2O5/ZrO2 mutual diffusion by variable P(O2) oxidation at 1500 ℃ (5–50 kPa). Effects of gas flow scouring was evaluated by flow filed simulation coupling laser and oxyacetylene ablations, from which its promotion effect on Ta2O5/ZrO2 diffusion efficiency was found. The increased Ta2O5/ZrO2 diffusion efficiency will accelerate the structure instability of Ta doped c-ZrO2 skeletons due to Zr-O bond length extension around Ta atoms.

KW - Ablation

KW - C/C composites

KW - First principal calculation

KW - TaC

KW - ZrC

UR - https://www.scopus.com/pages/publications/85146538254

U2 - 10.1016/j.jeurceramsoc.2023.01.022

DO - 10.1016/j.jeurceramsoc.2023.01.022

M3 - 文章

AN - SCOPUS:85146538254

SN - 0955-2219

VL - 43

SP - 2331

EP - 2344

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 6

ER -

Relationship analyses on environmental factors-ablation performance based on ZrC-TaC system: Oxygen partial pressure and gas flow scouring

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Keywords

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