Paper Title:
Microstructure and Properties of Graphite Embedded SiC Composite by Coating Method
  Abstract

Gp/SiC composite was prepared with electrode graphite particle and SiC powders as the raw materials, using coating process and hot-pressing sintering technology. The microstructure and phase constitution was measured by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron energy spectrum (EDS). It was found that the graphite cores are embedded in the SiC matrix as the islands. The apparent porosity increased, density decreased, with graphite particle content increasing, the bending strength decreased, however, fracture toughness increased with the graphite particle content increasing. Increasing hot-pressing sintering temperature imparted Gp/SiC composite characteristic behaviors of better mechanical strength. The apparent porosity, bulk density, bending strength, fracture toughness were 4.0%, 2.58 g•cm-3, 50 MPa, 6.3 MPa•m1/2, respectively, with the size 200 μm graphite core at 2050 °C, while the volume rate of SiC and graphite was 6:4.

  Info
Periodical
Advanced Materials Research (Volumes 105-106)
Edited by
Wei Pan and Jianghong Gong
Pages
855-858
DOI
10.4028/www.scientific.net/AMR.105-106.855
Citation
L. Yu, J. Zhao, X. Y. Yue, J. Y. Li, H. Q. Ru, "Microstructure and Properties of Graphite Embedded SiC Composite by Coating Method", Advanced Materials Research, Vols. 105-106, pp. 855-858, 2010
Online since
April 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Csaba Balázsi, Filiz Çinar Şahin, O. Addemir, Zsolt Kasztovszky, Zsuzsanna Kövér, Ferenc Wéber
Abstract:Silicon nitride based composites have been fabricated by carbon addition. Carbon black nanograins and graphite micrograins were used as...
238
Authors: Won Seung Cho, Yeon Chul Yoo, Chin Myung Whang, Nam Hee Cho, Woon Suk Hwang, Jun Gyu Kim, Young Jae Kwon
Abstract:Porous alumina bodies were successfully prepared by spark plasma sintering of alumina powders with different amounts of graphite, and by...
1056
Authors: Hong Wei Li, Qin Zhang, Zhi Hao Jin, Ji Ping Wang, Hai Yun Jin
Abstract:SiC/C (graphite) composite ceramics with 20vol% flake graphite were fabricated by Plasma Activated Sintering (PAS) firstly; the composites...
384
Authors: Zhuan Li, Peng Xiao, Xiang Xiong
Chapter 1: Composites and Polymers
Abstract:C/C-SiC brake composites, based on reinforcement of carbon fiber and dual matrix of carbon and silicon carbide, were fabricated by warm...
59
Authors: Xiao Xian Wu, Hong Xia Li, Guo Qi Liu, Chong Chong Niu, Tian Fei Ma
Abstract:Sheet nanocarbon-Al2O3 composite powders were produced by vibratory milling using expanded graphite and...
642