Title of article
Sintering Behavior of Lithium Meta Titanate Nanocrystallites
Author/Authors
Abbasian, A. R Department of Materials Engineering - Faculty of Engineering - University of Sistan and Baluchestan, Zahedan , Rahimipour, M. R Ceramic Department - Materials and Energy Research Center, Karaj , Hamnabard, Z Materials and Nuclear Fuel Research School - Nuclear Science and Technology Research Institute (NSTRI), Tehran,
Pages
10
From page
43
To page
52
Abstract
In this work, lithium meta titanate (Li2TiO3) nanocrystallites were synthesized by the 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. The densication curves of the synthesized powders
were also constructed via the dilatometry analysis and evaluated at several heating rates. Two separate methods, including
analytical procedure and master curve sintering were employed to determine the activation energy of the initial
sintering stage. Results showed that activation energy values obtained from these two distinct methods (229±14 and
230 kJ/mol, respectively) were consistent with each other. It was revealed that the dominant mechanism of densication
on initial sintering of Li2TiO3 nanocrystallites is surface diffusion.
Keywords
Tritium breeding , Sintering , Activation energy , Li2TiO3 nanocrystallites , dilatometry
Serial Year
2019
Record number
2492722
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