Mechanism of Silicon/Carbon Reaction for β-SiC Bonded SiC Materials

Chun Jiang Lv; Yang Yang; Zhen Liu; Long Fei Li; Cheng Chang; Jian Feng Gong

doi:10.4028/www.scientific.net/AMR.335-336.12

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Mechanism of Silicon/Carbon Reaction for β-SiC Bonded SiC Materials
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Effect of Magnetic Field Treatment on Temperature-Sensing Property of Polyethylene-Based PTC Composites
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Preparation and Characterization of ZrO₂/CNTs by Hydrthermal Method
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Optical Properties of in-Doped Wurtzite ZnO Based on First-Principle
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Preparation and Microwave Absorption Property of the Core-Nanoshell Composite Materials Doped with Nd
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Illumination Control System and Drive Design of Large Power LED Lights
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 335-336Mechanism of Silicon/Carbon Reaction for β-SiC...

Mechanism of Silicon/Carbon Reaction for β-SiC Bonded SiC Materials

Abstract:

Based on industrial silicon and carbon black as starting materials,β-SiC bonded SiC materials were prepared. The microstructure of such material and the silicon/carbon reaction were analyzed and investigated by XRD, SEM and other tools. The results indicate that the synthesis of β-SiC at 1400°C can be achieved through gas-phase mass transfer, liquid dissolution as well as in-situ reaction. While gas-phase mass transfer is the dominant reaction during the sintering of the material, in which β-SiC exists mainly as nanowhisker. The formation of β-SiC nanowires is believed to be the mechanism of reaction sintering.