Chemistry, Physics and Technology of Surface, 2016, 7 (4), 389-394.

Synthesis of Li1.3Al0.3Ti1.7(PO4)3 films with nasicon structure by «tаpe casting» method



DOI: https://doi.org/10.15407/hftp07.04.389

B. O. Linova, S. D. Kobylianska, A. G. Bilous, A. V. Ragulya, I. O. Dulina

Abstract


For the first time lithium aluminum titanium phosphate Li1.3 Al0.3Ti1.7 (PO4)3 thick films with NASICON structure have beenobtained by “tape casting” method . A sol-gel method was used to synthesize nanopowder Li1.3 Al0.3Ti1.7(PO4)3. Film-forming solution was obtained based o n previously synthesized nanoparticles and mixed with organic reagents. Films were deposited on the substrate of α-Al2 O3 and were exposed to isostatic lamination. Sintering thick films were carried out at temperature of 1000°C. Different regimes of heat treatment were studied to determine the optimal conditions of heat treatment . Investigation of structural and morphological characteristics has shown that the maximum dense film is achieved at low heating rate (20°C/h) and by the action of isostatic lamination . Reducing of porosity positively affects electrical properties. Films after isostatic lamination are characterized by high values of Li-ion conductivity. Thus, the laminated film after low rate heating, which has the lowest porosity of 17%, shows the highest values Li-ion conductivity – 5.6∙10–6 S/сm. 

Keywords


lithium aluminum titanium phosphate Li1.3Al0.3Ti1.7(PO4)3; NASICON structure; “tape casting” method; thick films; isostatic lamination; sol-gel method

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DOI: https://doi.org/10.15407/hftp07.04.389

Copyright (©) 2016 B. O. Linova, S. D. Kobylianska, A. G. Bilous, A. V. Ragulya, I. O. Dulina

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