Effect of surface oxidation on thermal shock resistance of ZrB2-SiC-G composite

Ping Hu; Zhi Wang; Xin Sun

doi:10.1016/j.ijrmhm.2009.10.013

Effect of surface oxidation on thermal shock resistance of ZrB₂-SiC-G composite

Ping Hu
, Zhi Wang^*
, Xin Sun

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

51 Scopus citations

Abstract

The thermal shock resistance of a ZrB₂-SiC composite containing flaky graphite was investigated in two different atmospheres - air and vacuum by measuring the retention of the flexural strength after water quenching for the temperature difference ranging from 200 up to 1900 °C. The residual strength values for the samples heated in vacuum gradually decreased with increasing temperature difference. When the temperature difference was above 1200 °C, the individual sample failed upon quenching. In contrast to the samples heated in vacuum, the residual strength values for the samples heated in air increased gradually as the temperature difference increased from 1200 up to 1700 °C; and the residual strength values again decreased for the temperature difference ranging from 1700 up to 1900 °C. These results indicated that the surface oxidation played the positive role in the thermal shock resistance of the ZrB₂-SiC-G composite.

Original language	English
Pages (from-to)	280-285
Number of pages	6
Journal	International Journal of Refractory Metals and Hard Materials
Volume	28
Issue number	2
DOIs	https://doi.org/10.1016/j.ijrmhm.2009.10.013
State	Published - Mar 2010

Keywords

Microstructure
Residual strength
Surface oxidation
Thermal shock resistance
Zirconium diboride

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10.1016/j.ijrmhm.2009.10.013

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title = "Effect of surface oxidation on thermal shock resistance of ZrB2-SiC-G composite",

abstract = "The thermal shock resistance of a ZrB2-SiC composite containing flaky graphite was investigated in two different atmospheres - air and vacuum by measuring the retention of the flexural strength after water quenching for the temperature difference ranging from 200 up to 1900 °C. The residual strength values for the samples heated in vacuum gradually decreased with increasing temperature difference. When the temperature difference was above 1200 °C, the individual sample failed upon quenching. In contrast to the samples heated in vacuum, the residual strength values for the samples heated in air increased gradually as the temperature difference increased from 1200 up to 1700 °C; and the residual strength values again decreased for the temperature difference ranging from 1700 up to 1900 °C. These results indicated that the surface oxidation played the positive role in the thermal shock resistance of the ZrB2-SiC-G composite.",

keywords = "Microstructure, Residual strength, Surface oxidation, Thermal shock resistance, Zirconium diboride",

author = "Ping Hu and Zhi Wang and Xin Sun",

year = "2010",

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doi = "10.1016/j.ijrmhm.2009.10.013",

language = "英语",

volume = "28",

pages = "280--285",

journal = "International Journal of Refractory Metals and Hard Materials",

issn = "0263-4368",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Effect of surface oxidation on thermal shock resistance of ZrB2-SiC-G composite

AU - Hu, Ping

AU - Wang, Zhi

AU - Sun, Xin

PY - 2010/3

Y1 - 2010/3

N2 - The thermal shock resistance of a ZrB2-SiC composite containing flaky graphite was investigated in two different atmospheres - air and vacuum by measuring the retention of the flexural strength after water quenching for the temperature difference ranging from 200 up to 1900 °C. The residual strength values for the samples heated in vacuum gradually decreased with increasing temperature difference. When the temperature difference was above 1200 °C, the individual sample failed upon quenching. In contrast to the samples heated in vacuum, the residual strength values for the samples heated in air increased gradually as the temperature difference increased from 1200 up to 1700 °C; and the residual strength values again decreased for the temperature difference ranging from 1700 up to 1900 °C. These results indicated that the surface oxidation played the positive role in the thermal shock resistance of the ZrB2-SiC-G composite.

AB - The thermal shock resistance of a ZrB2-SiC composite containing flaky graphite was investigated in two different atmospheres - air and vacuum by measuring the retention of the flexural strength after water quenching for the temperature difference ranging from 200 up to 1900 °C. The residual strength values for the samples heated in vacuum gradually decreased with increasing temperature difference. When the temperature difference was above 1200 °C, the individual sample failed upon quenching. In contrast to the samples heated in vacuum, the residual strength values for the samples heated in air increased gradually as the temperature difference increased from 1200 up to 1700 °C; and the residual strength values again decreased for the temperature difference ranging from 1700 up to 1900 °C. These results indicated that the surface oxidation played the positive role in the thermal shock resistance of the ZrB2-SiC-G composite.

KW - Microstructure

KW - Residual strength

KW - Surface oxidation

KW - Thermal shock resistance

KW - Zirconium diboride

UR - https://www.scopus.com/pages/publications/74849124903

U2 - 10.1016/j.ijrmhm.2009.10.013

DO - 10.1016/j.ijrmhm.2009.10.013

M3 - 文章

AN - SCOPUS:74849124903

SN - 0263-4368

VL - 28

SP - 280

EP - 285

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

IS - 2

ER -

Effect of surface oxidation on thermal shock resistance of ZrB₂-SiC-G composite

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Keywords

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