Author/Authors :
KHOSRAVI SAGHEZCHI، M. نويسنده , , Ajami، R. نويسنده School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran. , , Biazar Markie، M. نويسنده School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran. , , SARPOOLAKY، H. نويسنده ,
Abstract :
A comparing study on formation and microstructure features of aluminum titanate is investigated through
both solid-state and sol-gel processes. Aluminum titanate formed by firing at 1350?C and 1450?C for 4h in solid-state
process. In the sol-gel process formation of submicron sized particles is followed by addition of sucrose into the
transparent sol. XRD analysis was confirmed the formation of aluminum titanate at 1400?C in lower duration of
calcination (3h) without any additives in the sol-gel process. In this work 2wt% MgO is added to the samples as the
additive for forming acceleration of aluminum titanate. The influence of MgO addition and heat treatment are studied
on phase formation and microstructure development of aluminum titanate in both procedures. Additive optimizes
aluminum titanate formation at lower temperatures (1300-1350?C). Phase and microstructure studies of Mg
containing samples optimally show significance in aluminum titanate formation.
