Microstructure and thermal shock behavior of ZrB2-SiC-graphite composite

Zhi Wang; Changqing Hong; Xinghong Zhang; Xin Sun; Jiecai Han

doi:10.1016/j.matchemphys.2008.07.095

Microstructure and thermal shock behavior of ZrB₂-SiC-graphite composite

Zhi Wang
, Changqing Hong^*
, Xinghong Zhang
, Xin Sun
, Jiecai Han

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

129 Scopus citations

Abstract

A water-quenching technique was adopted to evaluate the thermal shock behavior of hot-pressed ZrB₂-SiC and ZrB₂-SiC-graphite composites in an air atmosphere. The strength retention of the two kinds of composites was measured after varying temperature (ΔT_c) up to 1000 °C. Monolithic ZrB₂-SiC showed rapidly drop in flexural strength above ΔT of 400 °C, however the critical thermal shock temperature difference (ΔT_c) is enhanced by adding graphite, and the ZrB₂-SiC-graphite composite showed a higher retained strengths up to 1000 °C. The main reasons for a great improvement of thermal shock resistance (TSR) were also discussed and analyzed.

Original language	English
Pages (from-to)	338-341
Number of pages	4
Journal	Materials Chemistry and Physics
Volume	113
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2008.07.095
State	Published - 15 Jan 2009

Keywords

Ceramics
Mechanical properties
Microstructure
Thermal properties

Access to Document

10.1016/j.matchemphys.2008.07.095

Cite this

@article{0278d5197230443e890329b6581dc49b,

title = "Microstructure and thermal shock behavior of ZrB2-SiC-graphite composite",

abstract = "A water-quenching technique was adopted to evaluate the thermal shock behavior of hot-pressed ZrB2-SiC and ZrB2-SiC-graphite composites in an air atmosphere. The strength retention of the two kinds of composites was measured after varying temperature (ΔTc) up to 1000 °C. Monolithic ZrB2-SiC showed rapidly drop in flexural strength above ΔT of 400 °C, however the critical thermal shock temperature difference (ΔTc) is enhanced by adding graphite, and the ZrB2-SiC-graphite composite showed a higher retained strengths up to 1000 °C. The main reasons for a great improvement of thermal shock resistance (TSR) were also discussed and analyzed.",

keywords = "Ceramics, Mechanical properties, Microstructure, Thermal properties",

author = "Zhi Wang and Changqing Hong and Xinghong Zhang and Xin Sun and Jiecai Han",

year = "2009",

month = jan,

day = "15",

doi = "10.1016/j.matchemphys.2008.07.095",

language = "英语",

volume = "113",

pages = "338--341",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - Microstructure and thermal shock behavior of ZrB2-SiC-graphite composite

AU - Wang, Zhi

AU - Hong, Changqing

AU - Zhang, Xinghong

AU - Sun, Xin

AU - Han, Jiecai

PY - 2009/1/15

Y1 - 2009/1/15

N2 - A water-quenching technique was adopted to evaluate the thermal shock behavior of hot-pressed ZrB2-SiC and ZrB2-SiC-graphite composites in an air atmosphere. The strength retention of the two kinds of composites was measured after varying temperature (ΔTc) up to 1000 °C. Monolithic ZrB2-SiC showed rapidly drop in flexural strength above ΔT of 400 °C, however the critical thermal shock temperature difference (ΔTc) is enhanced by adding graphite, and the ZrB2-SiC-graphite composite showed a higher retained strengths up to 1000 °C. The main reasons for a great improvement of thermal shock resistance (TSR) were also discussed and analyzed.

AB - A water-quenching technique was adopted to evaluate the thermal shock behavior of hot-pressed ZrB2-SiC and ZrB2-SiC-graphite composites in an air atmosphere. The strength retention of the two kinds of composites was measured after varying temperature (ΔTc) up to 1000 °C. Monolithic ZrB2-SiC showed rapidly drop in flexural strength above ΔT of 400 °C, however the critical thermal shock temperature difference (ΔTc) is enhanced by adding graphite, and the ZrB2-SiC-graphite composite showed a higher retained strengths up to 1000 °C. The main reasons for a great improvement of thermal shock resistance (TSR) were also discussed and analyzed.

KW - Ceramics

KW - Mechanical properties

KW - Microstructure

KW - Thermal properties

UR - https://www.scopus.com/pages/publications/56449096644

U2 - 10.1016/j.matchemphys.2008.07.095

DO - 10.1016/j.matchemphys.2008.07.095

M3 - 文章

AN - SCOPUS:56449096644

SN - 0254-0584

VL - 113

SP - 338

EP - 341

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Microstructure and thermal shock behavior of ZrB₂-SiC-graphite composite

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this