ZrB2 matrix ceramic composites by hot-pressed and SiC whisker reinforced

Dejiang Chen; Chengyong Liu; Lin Xu; Wenbo Han

ZrB₂ matrix ceramic composites by hot-pressed and SiC whisker reinforced

Dejiang Chen^*
, Chengyong Liu
, Lin Xu
, Wenbo Han

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

2 Scopus citations

Abstract

ZrB₂ based ceramic matrix composites containing two kinds of SiC whiskers were produced at 1800°C under a uniaxial load of 30 MPa by hot-pressing. The microstructure and mechanical properties of the two composites were investigated. The results show that the flexural strength and fracture toughness of composites are related with the aspect ratio of SiC whisker: the larger the aspect ratio is, the better of the properties of materials. The maximum flexural strength and the fracture toughness are 651 MPa and 5.97 MPa.m^1/2, respectively. The mechanical properties, especially the fracture toughness, are much higher than that of monolithic ZrB₂ and SiC particles reinforced ZrB₂ composites due to the main toughening mechanisms of crack deflection, whisker bridging and pullout.

Original language	English
Pages (from-to)	1634-1637
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	38
Issue number	9
State	Published - Sep 2009

Keywords

Hot-pressing sintering
Mechanical property
SiC whisker
ZrB

Cite this

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title = "ZrB2 matrix ceramic composites by hot-pressed and SiC whisker reinforced",

abstract = "ZrB2 based ceramic matrix composites containing two kinds of SiC whiskers were produced at 1800°C under a uniaxial load of 30 MPa by hot-pressing. The microstructure and mechanical properties of the two composites were investigated. The results show that the flexural strength and fracture toughness of composites are related with the aspect ratio of SiC whisker: the larger the aspect ratio is, the better of the properties of materials. The maximum flexural strength and the fracture toughness are 651 MPa and 5.97 MPa.m1/2, respectively. The mechanical properties, especially the fracture toughness, are much higher than that of monolithic ZrB2 and SiC particles reinforced ZrB2 composites due to the main toughening mechanisms of crack deflection, whisker bridging and pullout.",

keywords = "Hot-pressing sintering, Mechanical property, SiC whisker, ZrB",

author = "Dejiang Chen and Chengyong Liu and Lin Xu and Wenbo Han",

year = "2009",

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volume = "38",

pages = "1634--1637",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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}

TY - JOUR

T1 - ZrB2 matrix ceramic composites by hot-pressed and SiC whisker reinforced

AU - Chen, Dejiang

AU - Liu, Chengyong

AU - Xu, Lin

AU - Han, Wenbo

PY - 2009/9

Y1 - 2009/9

N2 - ZrB2 based ceramic matrix composites containing two kinds of SiC whiskers were produced at 1800°C under a uniaxial load of 30 MPa by hot-pressing. The microstructure and mechanical properties of the two composites were investigated. The results show that the flexural strength and fracture toughness of composites are related with the aspect ratio of SiC whisker: the larger the aspect ratio is, the better of the properties of materials. The maximum flexural strength and the fracture toughness are 651 MPa and 5.97 MPa.m1/2, respectively. The mechanical properties, especially the fracture toughness, are much higher than that of monolithic ZrB2 and SiC particles reinforced ZrB2 composites due to the main toughening mechanisms of crack deflection, whisker bridging and pullout.

AB - ZrB2 based ceramic matrix composites containing two kinds of SiC whiskers were produced at 1800°C under a uniaxial load of 30 MPa by hot-pressing. The microstructure and mechanical properties of the two composites were investigated. The results show that the flexural strength and fracture toughness of composites are related with the aspect ratio of SiC whisker: the larger the aspect ratio is, the better of the properties of materials. The maximum flexural strength and the fracture toughness are 651 MPa and 5.97 MPa.m1/2, respectively. The mechanical properties, especially the fracture toughness, are much higher than that of monolithic ZrB2 and SiC particles reinforced ZrB2 composites due to the main toughening mechanisms of crack deflection, whisker bridging and pullout.

KW - Hot-pressing sintering

KW - Mechanical property

KW - SiC whisker

KW - ZrB

UR - https://www.scopus.com/pages/publications/70350584975

M3 - 文章

AN - SCOPUS:70350584975

SN - 1002-185X

VL - 38

SP - 1634

EP - 1637

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 9

ER -

ZrB₂ matrix ceramic composites by hot-pressed and SiC whisker reinforced

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Keywords

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