Comprehensive oxidation mechanisms of heterogeneous laminated HfB2–SiC/Ti ceramics under oxyacetylene conditions

Yuhang Bai; Peipei Wang; Baoxi Zhang; Huiling Du; Laifei Cheng

doi:10.1016/j.jeurceramsoc.2022.02.030

Comprehensive oxidation mechanisms of heterogeneous laminated HfB₂–SiC/Ti ceramics under oxyacetylene conditions

Yuhang Bai, Peipei Wang, Baoxi Zhang, Huiling Du, Laifei Cheng

School of Materials Sience and Engineering

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

8 Scopus citations

Abstract

A laminated HfB₂–SiC/Ti ceramic prepared via tape casting and spark plasma sintering was characterized upon an oxyacetylene torch test at 2040 ℃. The volatility diagram for the binary HfB₂–SiC system was established along with the detailed ablation microstructure of the upper surface to investigate the ablation behavior of the samples. In addition, the mass (8.93 mg/s) and linear ablation rate (1.22 µm/s) of the laminate are ascribed to the strong oxidation protection of the Ti interlayer by the dense SiO₂ coating on the side surface, retarding the occurrence of oxidation weight loss and exfoliation at the interface. The corresponding oxidation behavior is proposed.

Original language	English
Pages (from-to)	3107-3117
Number of pages	11
Journal	Journal of the European Ceramic Society
Volume	42
Issue number	7
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2022.02.030
State	Published - Jul 2022

Keywords

Ablation
Laminated ceramics
Oxidation
UHTCs

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10.1016/j.jeurceramsoc.2022.02.030

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title = "Comprehensive oxidation mechanisms of heterogeneous laminated HfB2–SiC/Ti ceramics under oxyacetylene conditions",

abstract = "A laminated HfB2–SiC/Ti ceramic prepared via tape casting and spark plasma sintering was characterized upon an oxyacetylene torch test at 2040 ℃. The volatility diagram for the binary HfB2–SiC system was established along with the detailed ablation microstructure of the upper surface to investigate the ablation behavior of the samples. In addition, the mass (8.93 mg/s) and linear ablation rate (1.22 µm/s) of the laminate are ascribed to the strong oxidation protection of the Ti interlayer by the dense SiO2 coating on the side surface, retarding the occurrence of oxidation weight loss and exfoliation at the interface. The corresponding oxidation behavior is proposed.",

keywords = "Ablation, Laminated ceramics, Oxidation, UHTCs",

author = "Yuhang Bai and Peipei Wang and Baoxi Zhang and Huiling Du and Laifei Cheng",

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TY - JOUR

T1 - Comprehensive oxidation mechanisms of heterogeneous laminated HfB2–SiC/Ti ceramics under oxyacetylene conditions

AU - Bai, Yuhang

AU - Wang, Peipei

AU - Zhang, Baoxi

AU - Du, Huiling

AU - Cheng, Laifei

PY - 2022/7

Y1 - 2022/7

N2 - A laminated HfB2–SiC/Ti ceramic prepared via tape casting and spark plasma sintering was characterized upon an oxyacetylene torch test at 2040 ℃. The volatility diagram for the binary HfB2–SiC system was established along with the detailed ablation microstructure of the upper surface to investigate the ablation behavior of the samples. In addition, the mass (8.93 mg/s) and linear ablation rate (1.22 µm/s) of the laminate are ascribed to the strong oxidation protection of the Ti interlayer by the dense SiO2 coating on the side surface, retarding the occurrence of oxidation weight loss and exfoliation at the interface. The corresponding oxidation behavior is proposed.

AB - A laminated HfB2–SiC/Ti ceramic prepared via tape casting and spark plasma sintering was characterized upon an oxyacetylene torch test at 2040 ℃. The volatility diagram for the binary HfB2–SiC system was established along with the detailed ablation microstructure of the upper surface to investigate the ablation behavior of the samples. In addition, the mass (8.93 mg/s) and linear ablation rate (1.22 µm/s) of the laminate are ascribed to the strong oxidation protection of the Ti interlayer by the dense SiO2 coating on the side surface, retarding the occurrence of oxidation weight loss and exfoliation at the interface. The corresponding oxidation behavior is proposed.

KW - Ablation

KW - Laminated ceramics

KW - Oxidation

KW - UHTCs

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DO - 10.1016/j.jeurceramsoc.2022.02.030

M3 - 文章

AN - SCOPUS:85124813673

SN - 0955-2219

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 7

ER -

Comprehensive oxidation mechanisms of heterogeneous laminated HfB₂–SiC/Ti ceramics under oxyacetylene conditions

Abstract

Keywords

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