Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB                         2                         -based short fibrous monolithic ceramics

Yehong Cheng; Yuefeng Hu; Wenbo Han; Xinghong Zhang; Yumin Zhang; Huayu Zhang

doi:10.1016/j.jeurceramsoc.2019.03.042

Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB ₂ -based short fibrous monolithic ceramics

Yehong Cheng
, Yuefeng Hu
, Wenbo Han^*
, Xinghong Zhang
, Yumin Zhang
, Huayu Zhang

^*Corresponding author for this work

School of Astronautics

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

22 Scopus citations

Abstract

Axially aligned fibrous monolithic ceramics present non-catastrophic fracture behavior via crack deflection and delamination along cell boundaries. However, severe in-plane anisotropy and time-consuming preparation procedures prevent their extensive promotion. The introduction of high content of weak phase components with poor oxidation resistance in weak interface destroys the excellent oxidation resistance of ceramic matrix. In this work, ZrB ₂ -based short fibrous monolithic (SFM) ceramics with in-plane isotropic mechanical properties and excellent oxidation resistance were easily prepared by hot pressing randomly assembled short ceramic fibers. The microstructure and mechanical behavior of ZrB ₂ -based SFM ceramics densified at various temperatures were systematically investigated. The mechanical properties of ZrB ₂ -based SFM ceramics slightly improved with the increase of sintering temperature. ZrB ₂ -based SFM ceramics exhibited excellent oxidation resistance and remained intact without macroscopic cracks after ablation for 615 s in oxyacetylene flame with maximum temperatures exceeding 2150 °C. The oxidation behavior was analyzed in detail.

Original language	English
Pages (from-to)	2794-2804
Number of pages	11
Journal	Journal of the European Ceramic Society
Volume	39
Issue number	9
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2019.03.042
State	Published - Aug 2019

Keywords

Fibrous monolithic ceramic
Mechanical properties
Microstructure
Oxidation resistance
ZrB

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10.1016/j.jeurceramsoc.2019.03.042

Cite this

Cheng, Y., Hu, Y., Han, W., Zhang, X., Zhang, Y., & Zhang, H. (2019). Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB ₂ -based short fibrous monolithic ceramics Journal of the European Ceramic Society, 39(9), 2794-2804. https://doi.org/10.1016/j.jeurceramsoc.2019.03.042

@article{2b1f32b9f2584705a4ec49c1a203792d,

title = " Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB 2 -based short fibrous monolithic ceramics ",

abstract = " Axially aligned fibrous monolithic ceramics present non-catastrophic fracture behavior via crack deflection and delamination along cell boundaries. However, severe in-plane anisotropy and time-consuming preparation procedures prevent their extensive promotion. The introduction of high content of weak phase components with poor oxidation resistance in weak interface destroys the excellent oxidation resistance of ceramic matrix. In this work, ZrB 2 -based short fibrous monolithic (SFM) ceramics with in-plane isotropic mechanical properties and excellent oxidation resistance were easily prepared by hot pressing randomly assembled short ceramic fibers. The microstructure and mechanical behavior of ZrB 2 -based SFM ceramics densified at various temperatures were systematically investigated. The mechanical properties of ZrB 2 -based SFM ceramics slightly improved with the increase of sintering temperature. ZrB 2 -based SFM ceramics exhibited excellent oxidation resistance and remained intact without macroscopic cracks after ablation for 615 s in oxyacetylene flame with maximum temperatures exceeding 2150 °C. The oxidation behavior was analyzed in detail.",

keywords = "Fibrous monolithic ceramic, Mechanical properties, Microstructure, Oxidation resistance, ZrB",

author = "Yehong Cheng and Yuefeng Hu and Wenbo Han and Xinghong Zhang and Yumin Zhang and Huayu Zhang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = aug,

doi = "10.1016/j.jeurceramsoc.2019.03.042",

language = "英语",

volume = "39",

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journal = "Journal of the European Ceramic Society",

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Cheng, Y, Hu, Y, Han, W , Zhang, X , Zhang, Y & Zhang, H 2019, ' Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB ₂ -based short fibrous monolithic ceramics ', Journal of the European Ceramic Society, vol. 39, no. 9, pp. 2794-2804. https://doi.org/10.1016/j.jeurceramsoc.2019.03.042

Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB ₂ -based short fibrous monolithic ceramics . / Cheng, Yehong; Hu, Yuefeng; Han, Wenbo et al.
In: Journal of the European Ceramic Society, Vol. 39, No. 9, 08.2019, p. 2794-2804.

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

TY - JOUR

T1 - Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB 2 -based short fibrous monolithic ceramics

AU - Cheng, Yehong

AU - Hu, Yuefeng

AU - Han, Wenbo

AU - Zhang, Xinghong

AU - Zhang, Yumin

AU - Zhang, Huayu

PY - 2019/8

Y1 - 2019/8

N2 - Axially aligned fibrous monolithic ceramics present non-catastrophic fracture behavior via crack deflection and delamination along cell boundaries. However, severe in-plane anisotropy and time-consuming preparation procedures prevent their extensive promotion. The introduction of high content of weak phase components with poor oxidation resistance in weak interface destroys the excellent oxidation resistance of ceramic matrix. In this work, ZrB 2 -based short fibrous monolithic (SFM) ceramics with in-plane isotropic mechanical properties and excellent oxidation resistance were easily prepared by hot pressing randomly assembled short ceramic fibers. The microstructure and mechanical behavior of ZrB 2 -based SFM ceramics densified at various temperatures were systematically investigated. The mechanical properties of ZrB 2 -based SFM ceramics slightly improved with the increase of sintering temperature. ZrB 2 -based SFM ceramics exhibited excellent oxidation resistance and remained intact without macroscopic cracks after ablation for 615 s in oxyacetylene flame with maximum temperatures exceeding 2150 °C. The oxidation behavior was analyzed in detail.

AB - Axially aligned fibrous monolithic ceramics present non-catastrophic fracture behavior via crack deflection and delamination along cell boundaries. However, severe in-plane anisotropy and time-consuming preparation procedures prevent their extensive promotion. The introduction of high content of weak phase components with poor oxidation resistance in weak interface destroys the excellent oxidation resistance of ceramic matrix. In this work, ZrB 2 -based short fibrous monolithic (SFM) ceramics with in-plane isotropic mechanical properties and excellent oxidation resistance were easily prepared by hot pressing randomly assembled short ceramic fibers. The microstructure and mechanical behavior of ZrB 2 -based SFM ceramics densified at various temperatures were systematically investigated. The mechanical properties of ZrB 2 -based SFM ceramics slightly improved with the increase of sintering temperature. ZrB 2 -based SFM ceramics exhibited excellent oxidation resistance and remained intact without macroscopic cracks after ablation for 615 s in oxyacetylene flame with maximum temperatures exceeding 2150 °C. The oxidation behavior was analyzed in detail.

KW - Fibrous monolithic ceramic

KW - Mechanical properties

KW - Microstructure

KW - Oxidation resistance

KW - ZrB

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U2 - 10.1016/j.jeurceramsoc.2019.03.042

DO - 10.1016/j.jeurceramsoc.2019.03.042

M3 - 文章

AN - SCOPUS:85063216274

SN - 0955-2219

VL - 39

SP - 2794

EP - 2804

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 9

ER -

Cheng Y, Hu Y, Han W , Zhang X , Zhang Y , Zhang H. Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB ₂ -based short fibrous monolithic ceramics Journal of the European Ceramic Society. 2019 Aug;39(9):2794-2804. doi: 10.1016/j.jeurceramsoc.2019.03.042

Microstructure, mechanical behavior and oxidation resistance of disorderly assembled ZrB ₂ -based short fibrous monolithic ceramics

Abstract

Keywords

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