Preparation of Porous Mullite Ceramics Using Al as Foaming Agent

Abstract:

Article Preview

Effects of Al in different added condition on pores shape and mullite configuration were investigated. Three sorts of hole were got by using Al as foaming agent in mullite composites. It was concluded that isolated holes could be formed by Al changing to Al2Ol3 with acidity condition in green state, open holes could be formed by Al changing to Al2O3 directly in sintering process, and mixed hole of isolated and open ones could be formed by Al changing to Al(OH)3 with alkalescence condition in green state followed changing to Al2O3 in sintering process. These holes could supply a position for growth of mullite as well.

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Edited by:

Wei Pan and Jianghong Gong

Pages:

682-683

DOI:

10.4028/www.scientific.net/KEM.434-435.682

Citation:

J. Z. Yin et al., "Preparation of Porous Mullite Ceramics Using Al as Foaming Agent", Key Engineering Materials, Vols. 434-435, pp. 682-683, 2010

Online since:

March 2010

Export:

Price:

$35.00

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

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