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Towards cubic modification of Li7La3Zr2O12 compound by mechanical milling and annealing of powders

Oleszak D., Kurowski B., Pikula T., Pawlyta M., Senna M., Suzuki H.

Archives of Metallurgy and Materials

2019

Vol. 64, iss. 1

13--16

The aim of these studies was to obtain single phase cubic modification of Li7La3Zr2O12 by mechanical milling and annealing of La(OH)3, Li2CO3 and ZrO2 powder mixture. Fritsch P5 planetary ball mill, Rigaku MiniFlex II X-ray diffractometer, Setaram TG-DSC 1500 analyser and FEI Titan 80-300 transmission electron microscope were used for sample preparation and investigations. The applied milling and annealing parameters allowed to obtain the significant contribution of c-Li7La3Zr2O12 in the sample structure, reaching 90%. Thermal measurements revealed more complex reactions requiring further studies.