Sintering Behavior of Lithium Meta Titanate Nanocrystallites

In this work, lithium meta titanate (Li2TiO3) nanocrystallites were synthesized by hydrothermal method and subsequent heat treatment. The shrinkage of the powder compact was measured under constant heating rate in order to study the sintering behavior of the synthesized powders. Densification curves...

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Published in:Iranian journal materials science and engineering (Online) 2019-12, Vol.16 (4), p.43-52
Main Authors: A. R. Abbasian, M. R. Rahimipour, Z. Hamnabard
Format: Article
Language:English
Subjects:
activation energy
dilatometry
li2tio3 nanocrystallites
nano
sintering
tritium breeding
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M. R. Rahimipour
Z. Hamnabard
description In this work, lithium meta titanate (Li2TiO3) nanocrystallites were synthesized by hydrothermal method and subsequent heat treatment. The shrinkage of the powder compact was measured under constant heating rate in order to study the sintering behavior of the synthesized powders. Densification curves of the synthesized powders were also constructed via the dilatometry analysis and evaluated at several heating rates. Two separate methods of analytical procedure and master curve sintering were employed to determine the activation energy of the initial sintering stage. The activation energy values were estimated based on these two distinct methods as 229±14 and 230 kJ/mol respectively, consistenting with each other. Moreover, surface diffusion was determined as the dominant mechanism of densification on initial sintering of Li2TiO3 nanocrystallites.
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subjects activation energy
dilatometry
li2tio3 nanocrystallites
nano
sintering
tritium breeding
title Sintering Behavior of Lithium Meta Titanate Nanocrystallites
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