Characterization of Alumina Foam from Casting Process

Abd Rahman, Hamimah and Yap , Ching Guan Characterization of Alumina Foam from Casting Process. In: Proceedings of International Conference on Mechanical & Manufacturing Engineering (ICME2008), 21– 23 May 2008, Johor Bahru, Malaysia. © Faculty of Mechanical & Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Malaysia. ISBN: 97–. Faculty of Mechanical & Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia (UTHM), Malaysia. ISBN 97–98 –2963–59–2

[img]
Preview
PDF
332Kb

Abstract

A simple direct foaming and casting process using ovalbumin based aqueous slurries for fabricating alumina-zeolite ceramic foam was demonstrated. The characteristics of alumina foam were investigated through porosity, pore size, density and strength. 70 to 90 vol.% of alumina was used with zeolite of clinoptilolite type. Meanwhile, yeast was used as pore former agent in order to increase the porosity. Besides that, ovalbumin acted as a binder to bind the particles and encouraging foam formation. An increment in alumina loading has improved the porosity of ceramic foam but slightly reduced its strength. A ceramic foam with 90 vol.% of alumina showed the highest porosity 66.50% with the strength of 3.72 to 2.77 MPa. Therefore, the performance and utilization of these ceramic foams manufactured using this method may have a potential use in a range of applications including catalysis and filter.

Item Type:Book Section
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
ID Code:594
Deposited By:Mrs Hamimah Abd.Rahman
Deposited On:12 Mar 2012 11:09
Last Modified:12 Mar 2012 11:10

Repository Staff Only: item control page