Passive oxidation behavior of ZrB2-SiC eutectic composite prepared by arc melting

Rong Tu; Hideroni Hirayama; Takashi Goto

doi:10.4028/3-908454-00-X.217

Passive oxidation behavior of ZrB₂-SiC eutectic composite prepared by arc melting

Rong Tu, Hideroni Hirayama, Takashi Goto

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

3 Citations (Scopus)

Abstract

ZrB₂-SiC composites were prepared by arc melting using ZrB ₂ and β-SiC powders as raw materials and their oxidation behavior were investigated. The eutectic composition of the ZrB₂-SiC system was ZrB₂-58.5mol%SiC and the melting point temperature was about 2570 K. At 1673 K mass gain was observed in the oxidation of ZrB ₂-SiC eutectic composition and the mass gain rate increased with decreasing P_tot. The oxide scale consisted of an amorphous SiO ₂ layer, a ZrO₂-SiO₂ eutectic-like layer and a Si-deficient layer.

Original language	English
Pages (from-to)	217-220
Number of pages	4
Journal	Key Engineering Materials
Volume	403
DOIs	https://doi.org/10.4028/3-908454-00-X.217
Publication status	Published - 2009
Externally published	Yes

Keywords

Arc melting
Eutectic composite
Passive oxidation

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/3-908454-00-X.217

Cite this

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title = "Passive oxidation behavior of ZrB2-SiC eutectic composite prepared by arc melting",

abstract = "ZrB2-SiC composites were prepared by arc melting using ZrB 2 and β-SiC powders as raw materials and their oxidation behavior were investigated. The eutectic composition of the ZrB2-SiC system was ZrB2-58.5mol%SiC and the melting point temperature was about 2570 K. At 1673 K mass gain was observed in the oxidation of ZrB 2-SiC eutectic composition and the mass gain rate increased with decreasing Ptot. The oxide scale consisted of an amorphous SiO 2 layer, a ZrO2-SiO2 eutectic-like layer and a Si-deficient layer.",

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T1 - Passive oxidation behavior of ZrB2-SiC eutectic composite prepared by arc melting

AU - Tu, Rong

AU - Hirayama, Hideroni

AU - Goto, Takashi

PY - 2009

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N2 - ZrB2-SiC composites were prepared by arc melting using ZrB 2 and β-SiC powders as raw materials and their oxidation behavior were investigated. The eutectic composition of the ZrB2-SiC system was ZrB2-58.5mol%SiC and the melting point temperature was about 2570 K. At 1673 K mass gain was observed in the oxidation of ZrB 2-SiC eutectic composition and the mass gain rate increased with decreasing Ptot. The oxide scale consisted of an amorphous SiO 2 layer, a ZrO2-SiO2 eutectic-like layer and a Si-deficient layer.

AB - ZrB2-SiC composites were prepared by arc melting using ZrB 2 and β-SiC powders as raw materials and their oxidation behavior were investigated. The eutectic composition of the ZrB2-SiC system was ZrB2-58.5mol%SiC and the melting point temperature was about 2570 K. At 1673 K mass gain was observed in the oxidation of ZrB 2-SiC eutectic composition and the mass gain rate increased with decreasing Ptot. The oxide scale consisted of an amorphous SiO 2 layer, a ZrO2-SiO2 eutectic-like layer and a Si-deficient layer.

KW - Arc melting

KW - Eutectic composite

KW - Passive oxidation

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