Paper Title:
Microstructure and Mechanical Property of 2.5D C/SiCN Composite
  Abstract

Carbon fiber reinforced silicon carbonitride ceramic composite (C/SiCN) was prepared by rapid electro-thermal pyrolysis chemical vapor deposition using liquid hexamethyldisilazane as precursor. The density of C/SiCN is 1.75g/cm3 and with 15% porosity. Microstructure characteristics of C/SiCN were examined by transmission electron microscopy and scanning electron microscope equipped with energy dispersive spectrometer. The mechanical properties were characterized by three-point bending test. Microstructure observation displays a high degree of coalescence between SiCN matrix and fiber filaments, but there also exist plenty of micro-pores within fiber bundle. It is different from that of C/SiC composite made by chemical vapor infiltration. Mechanical test exhibits a mostly obvious nonlinear fracture behavior, which can be explained by typical toughening mechanism of long fiber-reinforced ceramic matrix composite.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
1499-1502
DOI
10.4028/www.scientific.net/AMR.79-82.1499
Citation
Y. Xia, S. R. Qiao, Q. Q. Wang, C. Y. Zhang, "Microstructure and Mechanical Property of 2.5D C/SiCN Composite", Advanced Materials Research, Vols. 79-82, pp. 1499-1502, 2009
Online since
August 2009
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: Guo Yang Guan, Gui Qiong Jiao, Tao Huang
Abstract:Mechanical tests have been conducted to understand compressive behavior of a plain weave C/SiC composite, especially to investigate the...
1841
Authors: Jürgen Meinhardt, Tobias Woyke, Friedrich Raether, Andreas Kienzle
Abstract:The fracture toughness increases but the long-term oxidation resistance of carbon short fiber reinforced C/SiC composites decreases if the...
1489
Authors: Sheng Li Lv, Qing Na Zeng, Lei Jiang Yao, Liu Ding Chen, Xiao Yan Tong
Chapter 1: Applied Materials
Abstract:The aim of this paper is to propose a microstructure modeling for prediction of thermal conductivity of plain weave C/SiC fibre bundles...
17
Authors: Sheng Li Lv, Qing Na Zeng, Lei Jiang Yao, Xiao Yan Tong
Chapter 3: Composites
Abstract:The aim of this paper is to propose a microstructure modeling for prediction of thermal conductivity of plain weave C/SiC fibre bundles...
315
Authors: Wei Liu, Gui Qiong Jiao, Jing Guo, Hao Tian Jiang
Chapter 1: Novel and Advanced Materials, Materials Science and Technologies
Abstract:Z-pins reinforced 2D ceramic matrix composites (CMCs), integratedly designed new materials, are developed to enhance 2D CMCs...
117