Oxyacetylene ablation of (Hf0.2Ti0.2Zr0.2Ta0.2Nb0.2)C at 1350 − 2050 °C

Zuozheng Chen; Haoxuan Wang; Chenran Li; Ke Ren; Yiguang Wang

doi:10.1016/j.jeurceramsoc.2023.01.018

Oxyacetylene ablation of (Hf_0.2Ti_0.2Zr_0.2Ta_0.2Nb_0.2)C at 1350 − 2050 °C

Zuozheng Chen
, Haoxuan Wang
, Chenran Li
, Ke Ren^*
, Yiguang Wang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Beijing Institute of Technology
Beijing Institute of Space Long March Vehicle

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

25 Citations (Scopus)

Abstract

Ablation resistance of a multi-component carbide (Hf_0.2Ti_0.2Zr_0.2Ta_0.2Nb_0.2)C (HTZTNC) was investigated using an oxyacetylene flame apparatus. When the surface temperature of the HTZTNC was below 1800 °C, (Nb, Ta)₂O₅, (Hf, Zr)TiO₄, and (Hf, Zr)O₂ were found to be the main oxidation products, while at higher temperature, formation of (Hf, Zr, Ti, Ta, Nb)O_x was favored and its content gradually increased with the increase in ablation temperature. Based on the ablation results and thermodynamic simulation analysis, a possible ablation mechanism of HTZTNC was proposed. Active oxidation of TiC and outward diffusion of TiO were demonstrated to occur during the ablation process, which constitute the critical steps for the ablation of HTZTNC. These results can contribute to the design of ablation resistant ultra-high-temperature ceramics.

Original language	English
Pages (from-to)	2700-2707
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.01.018
Publication status	Published - Jun 2023

Keywords

Multi-component carbide
Oxyacetylene ablation
Thermodynamic simulation

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10.1016/j.jeurceramsoc.2023.01.018

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title = "Oxyacetylene ablation of (Hf0.2Ti0.2Zr0.2Ta0.2Nb0.2)C at 1350 − 2050 °C",

abstract = "Ablation resistance of a multi-component carbide (Hf0.2Ti0.2Zr0.2Ta0.2Nb0.2)C (HTZTNC) was investigated using an oxyacetylene flame apparatus. When the surface temperature of the HTZTNC was below 1800 °C, (Nb, Ta)2O5, (Hf, Zr)TiO4, and (Hf, Zr)O2 were found to be the main oxidation products, while at higher temperature, formation of (Hf, Zr, Ti, Ta, Nb)Ox was favored and its content gradually increased with the increase in ablation temperature. Based on the ablation results and thermodynamic simulation analysis, a possible ablation mechanism of HTZTNC was proposed. Active oxidation of TiC and outward diffusion of TiO were demonstrated to occur during the ablation process, which constitute the critical steps for the ablation of HTZTNC. These results can contribute to the design of ablation resistant ultra-high-temperature ceramics.",

keywords = "Multi-component carbide, Oxyacetylene ablation, Thermodynamic simulation",

author = "Zuozheng Chen and Haoxuan Wang and Chenran Li and Ke Ren and Yiguang Wang",

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

year = "2023",

month = jun,

doi = "10.1016/j.jeurceramsoc.2023.01.018",

language = "English",

volume = "43",

pages = "2700--2707",

journal = "Journal of the European Ceramic Society",

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TY - JOUR

T1 - Oxyacetylene ablation of (Hf0.2Ti0.2Zr0.2Ta0.2Nb0.2)C at 1350 − 2050 °C

AU - Chen, Zuozheng

AU - Wang, Haoxuan

AU - Li, Chenran

AU - Ren, Ke

AU - Wang, Yiguang

PY - 2023/6

Y1 - 2023/6

N2 - Ablation resistance of a multi-component carbide (Hf0.2Ti0.2Zr0.2Ta0.2Nb0.2)C (HTZTNC) was investigated using an oxyacetylene flame apparatus. When the surface temperature of the HTZTNC was below 1800 °C, (Nb, Ta)2O5, (Hf, Zr)TiO4, and (Hf, Zr)O2 were found to be the main oxidation products, while at higher temperature, formation of (Hf, Zr, Ti, Ta, Nb)Ox was favored and its content gradually increased with the increase in ablation temperature. Based on the ablation results and thermodynamic simulation analysis, a possible ablation mechanism of HTZTNC was proposed. Active oxidation of TiC and outward diffusion of TiO were demonstrated to occur during the ablation process, which constitute the critical steps for the ablation of HTZTNC. These results can contribute to the design of ablation resistant ultra-high-temperature ceramics.

AB - Ablation resistance of a multi-component carbide (Hf0.2Ti0.2Zr0.2Ta0.2Nb0.2)C (HTZTNC) was investigated using an oxyacetylene flame apparatus. When the surface temperature of the HTZTNC was below 1800 °C, (Nb, Ta)2O5, (Hf, Zr)TiO4, and (Hf, Zr)O2 were found to be the main oxidation products, while at higher temperature, formation of (Hf, Zr, Ti, Ta, Nb)Ox was favored and its content gradually increased with the increase in ablation temperature. Based on the ablation results and thermodynamic simulation analysis, a possible ablation mechanism of HTZTNC was proposed. Active oxidation of TiC and outward diffusion of TiO were demonstrated to occur during the ablation process, which constitute the critical steps for the ablation of HTZTNC. These results can contribute to the design of ablation resistant ultra-high-temperature ceramics.

KW - Multi-component carbide

KW - Oxyacetylene ablation

KW - Thermodynamic simulation

UR - https://www.scopus.com/pages/publications/85146134898

U2 - 10.1016/j.jeurceramsoc.2023.01.018

DO - 10.1016/j.jeurceramsoc.2023.01.018

M3 - Article

AN - SCOPUS:85146134898

SN - 0955-2219

VL - 43

SP - 2700

EP - 2707

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 6

ER -

Oxyacetylene ablation of (Hf_0.2Ti_0.2Zr_0.2Ta_0.2Nb_0.2)C at 1350 − 2050 °C

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