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HomeKey Engineering MaterialsKey Engineering Materials Vol. 616Consolidation of SiC Powder Coated with SiO2...

Consolidation of SiC Powder Coated with SiO₂ Nanolayer by Spark Plasma Sintering

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Abstract:

Silica (SiO₂) nanolayer was coated on silicon carbide (SiC) powder by rotary chemical vapor deposition (RCVD). The SiC/SiO₂ composite were consolidated by spark plasma sintering (SPS) at 1923 K using the SiO₂ coated SiC powder. The relative density and hardness of the SiC/SiO₂ composites increased with increasing SiO₂ content, and were 97% and 17 GPa, respectively, at SiO₂ content of 22 mass%. The relative density and hardness of a composite consolidated using the mixture powders of SiC and SiO₂ (22 mass%) at 1923 K were 81% and 8 GPa, respectively.

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Periodical:

Key Engineering Materials (Volume 616)

Pages:

32-36

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.616.32

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Online since:

June 2014

Authors:

Zhen Hua He*, Hirokazu Katsui, Rong Tu, Takashi Goto

Keywords:

Rotary Chemical Vapor Deposition, SiC/SiO₂ Composites, Silicon Carbide (SiC), Spark Plasma Sintering (SPS)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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