Paper Title:
Effect of Colloidal Silica and Nano Boehmite Mixture on Reaction Sintering, Microstructure and Physical Properties of Tialite
  Abstract

Aluminum titanate (Al2TiO5) is an engineering ceramic with low thermal expansion coefficient, excellent thermal shock resistance, good refractoriness and non-wetting with most metals. In this work the use of colloidal silica and nano boehmite mixture in proper stoichiometry of mullite in aluminum-titanate (tialite) has been studied. Analytical structural evaluations including XRD, TEM and SEM have been used to characterize the influence of these additives on phase transformation, sintering process and microstructure. The results show that the presence of nano size silica and boehmite enhanced the densification leads to fine microstructure, mullite phase formation and improve the tialite ceramics properties.

  Info
Periodical
Defect and Diffusion Forum (Volumes 273-276)
Edited by
Andreas Öchsner and Graeme E. Murch
Pages
554-559
DOI
10.4028/www.scientific.net/DDF.273-276.554
Citation
G. Naderi, H. R. Rezaie, A. Shokuhfar, R. Naghizadeh, "Effect of Colloidal Silica and Nano Boehmite Mixture on Reaction Sintering, Microstructure and Physical Properties of Tialite", Defect and Diffusion Forum, Vols. 273-276, pp. 554-559, 2008
Online since
February 2008
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: Yi Wu, Xin Wang, Fei Long, Yu Fang Shen, Zheng Guang Zou
Abstract:In the present study, steel-bonded cemented carbide GT35 has been fabricated from natural ilmenite by in-situ carbothermic reduction and...
1140
Authors: Hui Wang, Ling Ke Zeng
Abstract:Mullite fiber porous ceramic was prepared by forced liquid displacement forming and using Mullite precursor sols as binders. SEM studies...
809
Authors: Jian Bo Yu, Zhong Ming Ren, B.Q. Wang, Y.W. Zhang
Abstract:A series of silica -based ceramic cores sintered at 1150°C, 1200°C for different times were prepared, and this study compared the three-point...
418
Authors: Łukasz Zych, Anna Wajler, Radosław Lach
Chapter 2: Ceramic and glass materials
Abstract:Magnesium-aluminium spinel (MgAl2O4) in the form of transparent ceramics is applied in shields of infrared detectors or...
82
Authors: Wen Jie Yuan, Qing You Zhu, Cheng Ji Deng, Hong Xi Zhu
Chapter 1: Chemical Materials and Technologies
Abstract:Three kinds of colloidal silica (GS-30, AM and HS-30) were applied as binders to corundum-mullite castables. The apparent porosity and cold...
127