Microstructure and properties of silicon carbide whisker reinforced zirconium diboride ultra-high temperature ceramics

Xinghong Zhang; Lin Xu; Wenbo Han; Ling Weng; Jiecai Han; Shanyi Du

doi:10.1016/j.solidstatesciences.2008.05.010

Microstructure and properties of silicon carbide whisker reinforced zirconium diboride ultra-high temperature ceramics

Xinghong Zhang
, Lin Xu^*
, Wenbo Han
, Ling Weng
, Jiecai Han
, Shanyi Du

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

96 Scopus citations

Abstract

Hot-pressed zirconium diboride (ZrB₂) matrix composites containing 0-30 vol% silicon carbide (SiC) whiskers have been investigated to determine the effect of composition (i.e. amount of SiC whiskers) on the microstructure, mechanical properties and thermal properties. With increasing SiC whisker volume contents, the flexural strength and fracture toughness of the composites were improved compared to those of monolithic ZrB₂. Flexural strength increased from 629 MPa for pure ZrB₂ to 767 MPa for ZrB₂-30 vol%SiCw. Likewise, fracture toughness ranged from 5.4 to 7.1 MPa m^1/2 over the same composition range. Specific heat capacity increased with SiC whisker addition, while thermal diffusivity and thermal conductivity decreased slightly with the increase of SiC whisker content.

Original language	English
Pages (from-to)	156-161
Number of pages	6
Journal	Solid State Sciences
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/j.solidstatesciences.2008.05.010
State	Published - Jan 2009

Keywords

Mechanical property
Microstructure
SiC whisker
Thermal property
ZrB

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10.1016/j.solidstatesciences.2008.05.010

Cite this

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title = "Microstructure and properties of silicon carbide whisker reinforced zirconium diboride ultra-high temperature ceramics",

abstract = "Hot-pressed zirconium diboride (ZrB2) matrix composites containing 0-30 vol\% silicon carbide (SiC) whiskers have been investigated to determine the effect of composition (i.e. amount of SiC whiskers) on the microstructure, mechanical properties and thermal properties. With increasing SiC whisker volume contents, the flexural strength and fracture toughness of the composites were improved compared to those of monolithic ZrB2. Flexural strength increased from 629 MPa for pure ZrB2 to 767 MPa for ZrB2-30 vol\%SiCw. Likewise, fracture toughness ranged from 5.4 to 7.1 MPa m1/2 over the same composition range. Specific heat capacity increased with SiC whisker addition, while thermal diffusivity and thermal conductivity decreased slightly with the increase of SiC whisker content.",

keywords = "Mechanical property, Microstructure, SiC whisker, Thermal property, ZrB",

author = "Xinghong Zhang and Lin Xu and Wenbo Han and Ling Weng and Jiecai Han and Shanyi Du",

year = "2009",

month = jan,

doi = "10.1016/j.solidstatesciences.2008.05.010",

language = "英语",

volume = "11",

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}

TY - JOUR

T1 - Microstructure and properties of silicon carbide whisker reinforced zirconium diboride ultra-high temperature ceramics

AU - Zhang, Xinghong

AU - Xu, Lin

AU - Han, Wenbo

AU - Weng, Ling

AU - Han, Jiecai

AU - Du, Shanyi

PY - 2009/1

Y1 - 2009/1

N2 - Hot-pressed zirconium diboride (ZrB2) matrix composites containing 0-30 vol% silicon carbide (SiC) whiskers have been investigated to determine the effect of composition (i.e. amount of SiC whiskers) on the microstructure, mechanical properties and thermal properties. With increasing SiC whisker volume contents, the flexural strength and fracture toughness of the composites were improved compared to those of monolithic ZrB2. Flexural strength increased from 629 MPa for pure ZrB2 to 767 MPa for ZrB2-30 vol%SiCw. Likewise, fracture toughness ranged from 5.4 to 7.1 MPa m1/2 over the same composition range. Specific heat capacity increased with SiC whisker addition, while thermal diffusivity and thermal conductivity decreased slightly with the increase of SiC whisker content.

AB - Hot-pressed zirconium diboride (ZrB2) matrix composites containing 0-30 vol% silicon carbide (SiC) whiskers have been investigated to determine the effect of composition (i.e. amount of SiC whiskers) on the microstructure, mechanical properties and thermal properties. With increasing SiC whisker volume contents, the flexural strength and fracture toughness of the composites were improved compared to those of monolithic ZrB2. Flexural strength increased from 629 MPa for pure ZrB2 to 767 MPa for ZrB2-30 vol%SiCw. Likewise, fracture toughness ranged from 5.4 to 7.1 MPa m1/2 over the same composition range. Specific heat capacity increased with SiC whisker addition, while thermal diffusivity and thermal conductivity decreased slightly with the increase of SiC whisker content.

KW - Mechanical property

KW - Microstructure

KW - SiC whisker

KW - Thermal property

KW - ZrB

UR - https://www.scopus.com/pages/publications/57849135454

U2 - 10.1016/j.solidstatesciences.2008.05.010

DO - 10.1016/j.solidstatesciences.2008.05.010

M3 - 文章

AN - SCOPUS:57849135454

SN - 1293-2558

VL - 11

SP - 156

EP - 161

JO - Solid State Sciences

JF - Solid State Sciences

IS - 1

ER -

Microstructure and properties of silicon carbide whisker reinforced zirconium diboride ultra-high temperature ceramics

Abstract

Keywords

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