Effect of Temperature on Stress Oxidation Behaviors of 2D C/SiC-BC x Composite in Wet Oxygen Atmosphere

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Abstract

The effect of temperature on stress oxidation behaviors of 2D C/SiC-BCx composites was investigated. The results indicate that the damage rate of 2D C/SiC-BCx composites increases with increasing oxidation temperature. The residual tensile strengths of 2D C/SiC-BCx composites show nonlinear change with increasing oxidation time. At 973.15 K (700 °C) and 1173.15 K (900 °C), the residual strengths of 2D C/SiC-BCx composites increase firstly and then decrease with increasing oxidation time. At 1473.15 K (1200 °C), the residual strengths are zero after stress oxidation for 9 hours. The oxidation of BCx layer aggravates, and the glass phase becomes more obvious with increasing oxidation temperature. At the same time, the oxidation damage of 2D C/SiC-BCx composites becomes more serious.

Original languageEnglish
Pages (from-to)5699-5707
Number of pages9
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume45
Issue number12
DOIs
StatePublished - Nov 2014

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