Paper Title:
Effect of Tetraethoxysilane Infiltration on Properties of 2.5D Quartz Fibers Reinforced Silica
  Abstract

In this study, 2.5 dimensional quartz fibers reinforced fused silica (2.5D SiO2f/SiO2) composites were prepared by in-situ solidification vacuum-assisted liquid-phase infiltration method using Si-sol and tetraethoxysilane. Composites’ tensile strength and compressive strength were tested by universal testing machine, and the microstructures of the specimen were observed by scanning electron microscopy (FEI Sirion 200). The ultimate sintering temperature was chosen by the differential thermal analysis of tetraethoxysilane gel and the effect of sintering temperature on the composites’ tensile strength. Densification behavior, mechanical properties and microstructures of the composites were investigated. The results show that tetraethoxysilane infiltration process is an efficient route for the preparation of SiO2f/SiO2 composites, after two cycles when the weight was no longer increased using Si-Sol infiltration, the density of SiO2f/SiO2 composites increases from 1.63 to 1.74g/cm3, while the tensile strength and compressive strength, respectively, increase from 31.2 to 52.7MPa and 59.0 to 129.7 MPa. And the interface de-bonding and distinct fibers pull-out of the fracture faces show that it is non-brittle fracture. The enhanced mechanism of tetraethoxysilane infiltration was also analyzed in this paper.

  Info
Periodical
Advanced Materials Research (Volumes 105-106)
Edited by
Wei Pan and Jianghong Gong
Pages
635-638
DOI
10.4028/www.scientific.net/AMR.105-106.635
Citation
H. S. Wang, L. Li, C. H. Wang, Y. Li, Q. H. Wei, "Effect of Tetraethoxysilane Infiltration on Properties of 2.5D Quartz Fibers Reinforced Silica", Advanced Materials Research, Vols. 105-106, pp. 635-638, 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: Hyo Jin Kim, Do Won Seo, Jae Kyoo Lim, Toru Fujii
417
Authors: Xian Liang Zhou, Duo Sheng Li, Ai Hua Zou, Xiao Zhen Hua, Zhi Guo Ye, Qing Jun Chen
New Functional Materials
Abstract:SiCp/Al composites were fabricated by ceramic mold freedom infiltration and pressureless infiltration, respectively. The microstructure and...
658
Authors: Wan Chang Sun, He Jun Li, Qian Gang Fu, Shou Yang Zhang
Abstract:PAN-carbon fibers were pretreated using three methods. 2D-C/C composites were fabricated by a rapid chemical liquid-vaporized infiltration...
482
Authors: Zhu Rui, Yu Tao Zhao, Song Li Zhang, Zhi Hong Jia
Chapter 1: Non-Ferrous Metal Material
Abstract:Abstract:Aluminum matrx composites reinforced by in situ ZrB2 particles are fabricated from A356-AlB-K2ZrF6 system via in-situ melt reaction...
122
Authors: A. Quddos, Mohammad Bilal Khan, R.N. Khan, M.K.K. Ghauri
Abstract:The impregnation of the fiber with a resin system, the polymeric matrix with the interface needs to be properly cured so that the dimensional...
577