Microstructure and mechanical properties of laminated ZrB2-SiC ceramics with ZrO2 interface layers

Chuncheng Wei; Xinghong Zhang; Ping Hu; Wenbo Han; Shuang Li

doi:10.1016/j.ijrmhm.2011.08.003

Microstructure and mechanical properties of laminated ZrB₂-SiC ceramics with ZrO₂ interface layers

Chuncheng Wei^*
, Xinghong Zhang
, Ping Hu
, Wenbo Han
, Shuang Li

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

20 Scopus citations

Abstract

Laminated ZrB₂-SiC ceramics with ZrO₂ interface layers were successfully prepared by tape casting, laminating and hot pressing. The flexural strength and fracture toughness are 561 ± 20 MPa and 14.4 ± 0.3 MPa m^1/2 for parallel direction, and 432 ± 18 MPa and 5.8 ± 0.3 MPa m^1/2 for perpendicular direction. The fracture toughness for parallel direction is improved significantly compared to monolithic ZrB₂-SiC ceramics. The toughening mechanism was attributed to the deflection and branch of the crack and the new microcracks, which would increase the propagation path and fracture work.

Original language	English
Pages (from-to)	173-176
Number of pages	4
Journal	International Journal of Refractory Metals and Hard Materials
Volume	30
Issue number	1
DOIs	https://doi.org/10.1016/j.ijrmhm.2011.08.003
State	Published - Jan 2012

Keywords

Fracture toughness
Laminated
ZrB
ZrO

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10.1016/j.ijrmhm.2011.08.003

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title = "Microstructure and mechanical properties of laminated ZrB2-SiC ceramics with ZrO2 interface layers",

abstract = "Laminated ZrB2-SiC ceramics with ZrO2 interface layers were successfully prepared by tape casting, laminating and hot pressing. The flexural strength and fracture toughness are 561 ± 20 MPa and 14.4 ± 0.3 MPa m1/2 for parallel direction, and 432 ± 18 MPa and 5.8 ± 0.3 MPa m1/2 for perpendicular direction. The fracture toughness for parallel direction is improved significantly compared to monolithic ZrB2-SiC ceramics. The toughening mechanism was attributed to the deflection and branch of the crack and the new microcracks, which would increase the propagation path and fracture work.",

keywords = "Fracture toughness, Laminated, ZrB, ZrO",

author = "Chuncheng Wei and Xinghong Zhang and Ping Hu and Wenbo Han and Shuang Li",

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doi = "10.1016/j.ijrmhm.2011.08.003",

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T1 - Microstructure and mechanical properties of laminated ZrB2-SiC ceramics with ZrO2 interface layers

AU - Wei, Chuncheng

AU - Zhang, Xinghong

AU - Hu, Ping

AU - Han, Wenbo

AU - Li, Shuang

PY - 2012/1

Y1 - 2012/1

N2 - Laminated ZrB2-SiC ceramics with ZrO2 interface layers were successfully prepared by tape casting, laminating and hot pressing. The flexural strength and fracture toughness are 561 ± 20 MPa and 14.4 ± 0.3 MPa m1/2 for parallel direction, and 432 ± 18 MPa and 5.8 ± 0.3 MPa m1/2 for perpendicular direction. The fracture toughness for parallel direction is improved significantly compared to monolithic ZrB2-SiC ceramics. The toughening mechanism was attributed to the deflection and branch of the crack and the new microcracks, which would increase the propagation path and fracture work.

AB - Laminated ZrB2-SiC ceramics with ZrO2 interface layers were successfully prepared by tape casting, laminating and hot pressing. The flexural strength and fracture toughness are 561 ± 20 MPa and 14.4 ± 0.3 MPa m1/2 for parallel direction, and 432 ± 18 MPa and 5.8 ± 0.3 MPa m1/2 for perpendicular direction. The fracture toughness for parallel direction is improved significantly compared to monolithic ZrB2-SiC ceramics. The toughening mechanism was attributed to the deflection and branch of the crack and the new microcracks, which would increase the propagation path and fracture work.

KW - Fracture toughness

KW - Laminated

KW - ZrB

KW - ZrO

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DO - 10.1016/j.ijrmhm.2011.08.003

M3 - 文章

AN - SCOPUS:80053985584

SN - 0263-4368

VL - 30

SP - 173

EP - 176

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

IS - 1

ER -

Microstructure and mechanical properties of laminated ZrB₂-SiC ceramics with ZrO₂ interface layers

Abstract

Keywords

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