Laminated ZrB2-SiC ceramic with improved strength and toughness

Peng Zhou; Ping Hu; Xinghong Zhang; Wenbo Han

doi:10.1016/j.scriptamat.2010.10.005

Laminated ZrB₂-SiC ceramic with improved strength and toughness

Peng Zhou^*
, Ping Hu
, Xinghong Zhang
, Wenbo Han

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

82 Scopus citations

Abstract

Laminated ZrB₂-SiC ceramic was successfully prepared and layers with different SiC content were stacked in order to develop a specific residual stress profile. The flexural strength and fracture toughness of the laminated ZrB₂-SiC ceramic were 960 ± 84 MPa and 8.8 ± 0.3 MPa m^1/2 respectively, which were much higher values than those of monolithic ZrB₂-SiC ceramics. The significant improvement in mechanical properties was attributed to the presence of residual compressive stresses arising from a mismatch in the thermal coefficient of expansion between the adjacent layers.

Original language	English
Pages (from-to)	276-279
Number of pages	4
Journal	Scripta Materialia
Volume	64
Issue number	3
DOIs	https://doi.org/10.1016/j.scriptamat.2010.10.005
State	Published - Feb 2011

Keywords

Fracture toughness
Laminated structure
Residual stress
ZrB-SiC ceramic

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10.1016/j.scriptamat.2010.10.005

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title = "Laminated ZrB2-SiC ceramic with improved strength and toughness",

abstract = "Laminated ZrB2-SiC ceramic was successfully prepared and layers with different SiC content were stacked in order to develop a specific residual stress profile. The flexural strength and fracture toughness of the laminated ZrB2-SiC ceramic were 960 ± 84 MPa and 8.8 ± 0.3 MPa m1/2 respectively, which were much higher values than those of monolithic ZrB2-SiC ceramics. The significant improvement in mechanical properties was attributed to the presence of residual compressive stresses arising from a mismatch in the thermal coefficient of expansion between the adjacent layers.",

keywords = "Fracture toughness, Laminated structure, Residual stress, ZrB-SiC ceramic",

author = "Peng Zhou and Ping Hu and Xinghong Zhang and Wenbo Han",

year = "2011",

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doi = "10.1016/j.scriptamat.2010.10.005",

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T1 - Laminated ZrB2-SiC ceramic with improved strength and toughness

AU - Zhou, Peng

AU - Hu, Ping

AU - Zhang, Xinghong

AU - Han, Wenbo

PY - 2011/2

Y1 - 2011/2

N2 - Laminated ZrB2-SiC ceramic was successfully prepared and layers with different SiC content were stacked in order to develop a specific residual stress profile. The flexural strength and fracture toughness of the laminated ZrB2-SiC ceramic were 960 ± 84 MPa and 8.8 ± 0.3 MPa m1/2 respectively, which were much higher values than those of monolithic ZrB2-SiC ceramics. The significant improvement in mechanical properties was attributed to the presence of residual compressive stresses arising from a mismatch in the thermal coefficient of expansion between the adjacent layers.

AB - Laminated ZrB2-SiC ceramic was successfully prepared and layers with different SiC content were stacked in order to develop a specific residual stress profile. The flexural strength and fracture toughness of the laminated ZrB2-SiC ceramic were 960 ± 84 MPa and 8.8 ± 0.3 MPa m1/2 respectively, which were much higher values than those of monolithic ZrB2-SiC ceramics. The significant improvement in mechanical properties was attributed to the presence of residual compressive stresses arising from a mismatch in the thermal coefficient of expansion between the adjacent layers.

KW - Fracture toughness

KW - Laminated structure

KW - Residual stress

KW - ZrB-SiC ceramic

UR - https://www.scopus.com/pages/publications/78649317610

U2 - 10.1016/j.scriptamat.2010.10.005

DO - 10.1016/j.scriptamat.2010.10.005

M3 - 文章

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SN - 1359-6462

VL - 64

SP - 276

EP - 279

JO - Scripta Materialia

JF - Scripta Materialia

IS - 3

ER -

Laminated ZrB₂-SiC ceramic with improved strength and toughness

Abstract

Keywords

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