Effects of ZrB2 and SiC dual addition on the oxidation resistance of graphite at 1600-2000°C

Zeng Hua Gao; Jing Jun Xu; Zhong Wei Zhang; Yu Hai Qian; Mei Shuan Li

doi:10.1016/j.corsci.2013.06.041

Effects of ZrB₂ and SiC dual addition on the oxidation resistance of graphite at 1600-2000°C

Zeng Hua Gao
, Jing Jun Xu
, Zhong Wei Zhang
, Yu Hai Qian
, Mei Shuan Li^*

^*Corresponding author for this work

CAS - Institute of Metal Research
China Aerospace Science and Technology Corporation

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

47 Citations (Scopus)

Abstract

The effects of ZrB₂ and ZrB₂+SiC additions on the oxidation kinetics of graphite at 1600-2000°C in air were investigated. The ZrB₂+SiC dual addition improves the oxidation resistance of graphite more effectively than the ZrB₂ single addition, because the oxide scale formed on C-ZrB₂-SiC is denser and thinner due to the existence of glassy SiO₂. As the oxidation temperature increases, the oxidation rate of C-ZrB₂-SiC gradually increases and oxide scales with layered microstructures form on its surface due to the greatly enhanced active oxidation of SiC at higher temperatures.

Original language	English
Pages (from-to)	182-191
Number of pages	10
Journal	Corrosion Science
Volume	76
DOIs	https://doi.org/10.1016/j.corsci.2013.06.041
Publication status	Published - Nov 2013
Externally published	Yes

Keywords

B. SEM
B. Weight loss
B. XRD
C. Kinetic parameters
C. Oxidation
C. Thermodynamic diagrams

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10.1016/j.corsci.2013.06.041

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title = "Effects of ZrB2 and SiC dual addition on the oxidation resistance of graphite at 1600-2000°C",

abstract = "The effects of ZrB2 and ZrB2+SiC additions on the oxidation kinetics of graphite at 1600-2000°C in air were investigated. The ZrB2+SiC dual addition improves the oxidation resistance of graphite more effectively than the ZrB2 single addition, because the oxide scale formed on C-ZrB2-SiC is denser and thinner due to the existence of glassy SiO2. As the oxidation temperature increases, the oxidation rate of C-ZrB2-SiC gradually increases and oxide scales with layered microstructures form on its surface due to the greatly enhanced active oxidation of SiC at higher temperatures.",

keywords = "B. SEM, B. Weight loss, B. XRD, C. Kinetic parameters, C. Oxidation, C. Thermodynamic diagrams",

author = "Gao, \{Zeng Hua\} and Xu, \{Jing Jun\} and Zhang, \{Zhong Wei\} and Qian, \{Yu Hai\} and Li, \{Mei Shuan\}",

year = "2013",

month = nov,

doi = "10.1016/j.corsci.2013.06.041",

language = "English",

volume = "76",

pages = "182--191",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Effects of ZrB2 and SiC dual addition on the oxidation resistance of graphite at 1600-2000°C

AU - Gao, Zeng Hua

AU - Xu, Jing Jun

AU - Zhang, Zhong Wei

AU - Qian, Yu Hai

AU - Li, Mei Shuan

PY - 2013/11

Y1 - 2013/11

N2 - The effects of ZrB2 and ZrB2+SiC additions on the oxidation kinetics of graphite at 1600-2000°C in air were investigated. The ZrB2+SiC dual addition improves the oxidation resistance of graphite more effectively than the ZrB2 single addition, because the oxide scale formed on C-ZrB2-SiC is denser and thinner due to the existence of glassy SiO2. As the oxidation temperature increases, the oxidation rate of C-ZrB2-SiC gradually increases and oxide scales with layered microstructures form on its surface due to the greatly enhanced active oxidation of SiC at higher temperatures.

AB - The effects of ZrB2 and ZrB2+SiC additions on the oxidation kinetics of graphite at 1600-2000°C in air were investigated. The ZrB2+SiC dual addition improves the oxidation resistance of graphite more effectively than the ZrB2 single addition, because the oxide scale formed on C-ZrB2-SiC is denser and thinner due to the existence of glassy SiO2. As the oxidation temperature increases, the oxidation rate of C-ZrB2-SiC gradually increases and oxide scales with layered microstructures form on its surface due to the greatly enhanced active oxidation of SiC at higher temperatures.

KW - B. SEM

KW - B. Weight loss

KW - B. XRD

KW - C. Kinetic parameters

KW - C. Oxidation

KW - C. Thermodynamic diagrams

UR - https://www.scopus.com/pages/publications/84883251882

U2 - 10.1016/j.corsci.2013.06.041

DO - 10.1016/j.corsci.2013.06.041

M3 - Article

AN - SCOPUS:84883251882

SN - 0010-938X

VL - 76

SP - 182

EP - 191

JO - Corrosion Science

JF - Corrosion Science

ER -

Effects of ZrB₂ and SiC dual addition on the oxidation resistance of graphite at 1600-2000°C

Abstract

Keywords

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