Abstract
Lithium–iron-phosphate (LIP) glasses with different amounts of zirconia were prepared by conventional melting and annealing process. The influence of the nucleation agent, zirconia, on the crystallization behavior of LIP glasses has been studied using differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electronic microscopy (SEM) techniques. The results show that addition of 2 wt% of zirconia results in increases in the glass transition and crystallization temperatures and a decrease in the activation energy of crystallization. However, both temperatures decrease with increased addition of zirconia while the activation energy increases. The zirconia-free LIP glass only shows surface crystallization with crystals of LiFeP2O7. The glass containing 2 wt% of zirconia also has surface crystallization; however, mixed ZrP2O7 and LiFeP2O7 are crystallized. The addition of 5 and 8 wt% of zirconia leads to bulk crystallization and increasing formation of ZrP2O7 crystals besides the LiFeP2O7 phase.
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Acknowledgments
This work was financially supported by the opening projects foundation from State Key Laboratory of Crystal Material, Shandong University. The authors also thank Prof. Xiaopeng Hao and Yuan Ma for their help in the SEM measurements.
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Presented in part at the 1st International Congress on Advanced Materials held in Jinan, PRC, from May 12–17, 2011
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Liu, H., Yang, R., Wang, Y. et al. Crystallization Behavior of Lithium–Iron-Phosphate Glasses with Additions of ZrO2 . J Inorg Organomet Polym 21, 950–953 (2011). https://doi.org/10.1007/s10904-011-9543-1
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DOI: https://doi.org/10.1007/s10904-011-9543-1