Toughening and ablation mechanism of Si3N4 short fiber toughened ZrB2-based ceramics

Chuncheng Wei; Zhongya Zhang; Yulan Xue; Peng Wang; Lanyong Liu; Xianghan Duan; Xinghong Zhang; Dehui Chen

doi:10.1016/j.jeurceramsoc.2023.05.025

Toughening and ablation mechanism of Si₃N₄ short fiber toughened ZrB₂-based ceramics

Chuncheng Wei^*
, Zhongya Zhang
, Yulan Xue
, Peng Wang
, Lanyong Liu
, Xianghan Duan
, Xinghong Zhang
, Dehui Chen

^*Corresponding author for this work

School of Astronautics

Shandong University of Technology

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

17 Scopus citations

Abstract

ZrB₂-based ceramics with Si₃N₄ short fiber (ZSN) were prepared by wet-spinning extrusion and hot pressing. The toughness of ZSN was 5.6 MPa·m^1/2, which was 20% higher than that of monolithic ceramic (4.7 MPa·m^1/2). The ablation performance of ZSN was evaluated by air discharge plasma ablation platform with a heat flux of 8.04 MW/m² for 120 s. The mass and linear ablation rates of ZSN were − 0.19 mg/s and − 0.25 µm/s, respectively. The specimens of ZSN remained intact while monolithic ceramics exhibited destructive fracture. The better ablation performance of ZSN is attributed to the addition of Si₃N₄ short fiber which increased the fracture toughness, reduced the elastic modulus, and improved the thermal conductivity at high temperature.

Original language	English
Pages (from-to)	5425-5435
Number of pages	11
Journal	Journal of the European Ceramic Society
Volume	43
Issue number	13
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2023.05.025
State	Published - Oct 2023

Keywords

Ablation resistance
SiN fiber
Thermal conductivity
Toughened
ZrB ceramics

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10.1016/j.jeurceramsoc.2023.05.025

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title = "Toughening and ablation mechanism of Si3N4 short fiber toughened ZrB2-based ceramics",

abstract = "ZrB2-based ceramics with Si3N4 short fiber (ZSN) were prepared by wet-spinning extrusion and hot pressing. The toughness of ZSN was 5.6 MPa·m1/2, which was 20\% higher than that of monolithic ceramic (4.7 MPa·m1/2). The ablation performance of ZSN was evaluated by air discharge plasma ablation platform with a heat flux of 8.04 MW/m2 for 120 s. The mass and linear ablation rates of ZSN were − 0.19 mg/s and − 0.25 µm/s, respectively. The specimens of ZSN remained intact while monolithic ceramics exhibited destructive fracture. The better ablation performance of ZSN is attributed to the addition of Si3N4 short fiber which increased the fracture toughness, reduced the elastic modulus, and improved the thermal conductivity at high temperature.",

keywords = "Ablation resistance, SiN fiber, Thermal conductivity, Toughened, ZrB ceramics",

author = "Chuncheng Wei and Zhongya Zhang and Yulan Xue and Peng Wang and Lanyong Liu and Xianghan Duan and Xinghong Zhang and Dehui Chen",

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

year = "2023",

month = oct,

doi = "10.1016/j.jeurceramsoc.2023.05.025",

language = "英语",

volume = "43",

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journal = "Journal of the European Ceramic Society",

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TY - JOUR

T1 - Toughening and ablation mechanism of Si3N4 short fiber toughened ZrB2-based ceramics

AU - Wei, Chuncheng

AU - Zhang, Zhongya

AU - Xue, Yulan

AU - Wang, Peng

AU - Liu, Lanyong

AU - Duan, Xianghan

AU - Zhang, Xinghong

AU - Chen, Dehui

PY - 2023/10

Y1 - 2023/10

N2 - ZrB2-based ceramics with Si3N4 short fiber (ZSN) were prepared by wet-spinning extrusion and hot pressing. The toughness of ZSN was 5.6 MPa·m1/2, which was 20% higher than that of monolithic ceramic (4.7 MPa·m1/2). The ablation performance of ZSN was evaluated by air discharge plasma ablation platform with a heat flux of 8.04 MW/m2 for 120 s. The mass and linear ablation rates of ZSN were − 0.19 mg/s and − 0.25 µm/s, respectively. The specimens of ZSN remained intact while monolithic ceramics exhibited destructive fracture. The better ablation performance of ZSN is attributed to the addition of Si3N4 short fiber which increased the fracture toughness, reduced the elastic modulus, and improved the thermal conductivity at high temperature.

AB - ZrB2-based ceramics with Si3N4 short fiber (ZSN) were prepared by wet-spinning extrusion and hot pressing. The toughness of ZSN was 5.6 MPa·m1/2, which was 20% higher than that of monolithic ceramic (4.7 MPa·m1/2). The ablation performance of ZSN was evaluated by air discharge plasma ablation platform with a heat flux of 8.04 MW/m2 for 120 s. The mass and linear ablation rates of ZSN were − 0.19 mg/s and − 0.25 µm/s, respectively. The specimens of ZSN remained intact while monolithic ceramics exhibited destructive fracture. The better ablation performance of ZSN is attributed to the addition of Si3N4 short fiber which increased the fracture toughness, reduced the elastic modulus, and improved the thermal conductivity at high temperature.

KW - Ablation resistance

KW - SiN fiber

KW - Thermal conductivity

KW - Toughened

KW - ZrB ceramics

UR - https://www.scopus.com/pages/publications/85159562684

U2 - 10.1016/j.jeurceramsoc.2023.05.025

DO - 10.1016/j.jeurceramsoc.2023.05.025

M3 - 文章

AN - SCOPUS:85159562684

SN - 0955-2219

VL - 43

SP - 5425

EP - 5435

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 13

ER -

Toughening and ablation mechanism of Si₃N₄ short fiber toughened ZrB₂-based ceramics

Abstract

Keywords

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