Laminated ZrB2-SiC/graphite ceramics with simultaneously improved flexural strength and fracture toughness

Chuncheng Wei; Xinghong Zhang; Shuang Li

doi:10.1016/j.ceramint.2013.08.070

Laminated ZrB₂-SiC/graphite ceramics with simultaneously improved flexural strength and fracture toughness

Chuncheng Wei^*
, Xinghong Zhang
, Shuang Li

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Shandong University of Technology

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

51 Scopus citations

Abstract

Layered graphite was introduced into ZrB₂-SiC ceramics to prepare laminated composite by tape casting and hot pressing. Both fracture toughness and flexural strength were improved in the laminates, reaching the peak values of 12.4 MPa m^1/2 and 580 MPa, respectively. Cracks propagated in a step-like mode resulting from the layered, soft interface layer, so crack branch and interface delamination were considered as the main toughening mechanisms. The compressive stress in the ZrB₂-20 vol% SiC layer was the main strengthening mechanism.

Original language	English
Pages (from-to)	5001-5006
Number of pages	6
Journal	Ceramics International
Volume	40
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2013.08.070
State	Published - Apr 2014

Keywords

A. Hot pressing
A. Tape casting
C. Mechanical properties
Layered

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10.1016/j.ceramint.2013.08.070

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title = "Laminated ZrB2-SiC/graphite ceramics with simultaneously improved flexural strength and fracture toughness",

abstract = "Layered graphite was introduced into ZrB2-SiC ceramics to prepare laminated composite by tape casting and hot pressing. Both fracture toughness and flexural strength were improved in the laminates, reaching the peak values of 12.4 MPa m1/2 and 580 MPa, respectively. Cracks propagated in a step-like mode resulting from the layered, soft interface layer, so crack branch and interface delamination were considered as the main toughening mechanisms. The compressive stress in the ZrB2-20 vol\% SiC layer was the main strengthening mechanism.",

keywords = "A. Hot pressing, A. Tape casting, C. Mechanical properties, Layered",

author = "Chuncheng Wei and Xinghong Zhang and Shuang Li",

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T1 - Laminated ZrB2-SiC/graphite ceramics with simultaneously improved flexural strength and fracture toughness

AU - Wei, Chuncheng

AU - Zhang, Xinghong

AU - Li, Shuang

PY - 2014/4

Y1 - 2014/4

N2 - Layered graphite was introduced into ZrB2-SiC ceramics to prepare laminated composite by tape casting and hot pressing. Both fracture toughness and flexural strength were improved in the laminates, reaching the peak values of 12.4 MPa m1/2 and 580 MPa, respectively. Cracks propagated in a step-like mode resulting from the layered, soft interface layer, so crack branch and interface delamination were considered as the main toughening mechanisms. The compressive stress in the ZrB2-20 vol% SiC layer was the main strengthening mechanism.

AB - Layered graphite was introduced into ZrB2-SiC ceramics to prepare laminated composite by tape casting and hot pressing. Both fracture toughness and flexural strength were improved in the laminates, reaching the peak values of 12.4 MPa m1/2 and 580 MPa, respectively. Cracks propagated in a step-like mode resulting from the layered, soft interface layer, so crack branch and interface delamination were considered as the main toughening mechanisms. The compressive stress in the ZrB2-20 vol% SiC layer was the main strengthening mechanism.

KW - A. Hot pressing

KW - A. Tape casting

KW - C. Mechanical properties

KW - Layered

UR - https://www.scopus.com/pages/publications/84891371304

U2 - 10.1016/j.ceramint.2013.08.070

DO - 10.1016/j.ceramint.2013.08.070

M3 - 文章

AN - SCOPUS:84891371304

SN - 0272-8842

VL - 40

SP - 5001

EP - 5006

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Laminated ZrB₂-SiC/graphite ceramics with simultaneously improved flexural strength and fracture toughness

Abstract

Keywords

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