Paper Title:

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

Periodical Advanced Materials Research (Volumes 335 - 336)
Main Theme Advanced Materials and Structures
Edited by Yun-Hae Kim, Prasad Yarlagadda, Xiaodong Zhang and Zhijiu Ai
Pages 12-17
DOI 10.4028/www.scientific.net/AMR.335-336.12
Citation Chun Jiang Lv et al., 2011, Advanced Materials Research, 335-336, 12
Online since September, 2011
Authors Chun Jiang Lv, Yang Yang, Zhen Liu, Long Fei Li, Cheng Chang, Jian Feng Gong
Keywords Microstructure, Reaction Sintering, ß-SiC Bonded Sic
Price US$ 28,-
Article Preview
View full size
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℃ 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.