| Crystallization kinetics of lithium–aluminum–germanium–phosphate glass doped with MgO using a non-isothermal method |
| Jae-Min Cha1, Liyu Liu2, Hyun-Joon Lee2, Won-Jong Jeong2, Hyung-Sik Lim2, Bong-Ki Ryu2 |
1The Institute of Materials Technology, Pusan National University, Busan 46241, South Korea
2Department of Materials Science and Engineering, Pusan National University, Busan 46241, South Korea |
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Received: March 23, 2021; Revised: August 4, 2021 Accepted: August 11, 2021. Published online: September 30, 2021. |
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| ABSTRACT |
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This study examines the effect of MgO content on the crystallization behavior of lithium–aluminum–germanium–phosphate glasses using differential thermal analysis (DTA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The DTA results show that the crystallization temperature decreased with an increasing MgO content and increased with increasing heating rates. The crystalline phase is investigated with XRD to determine the presence of LiGe2(PO4)3 and LiMgPO4. The activation energy, as the kinetic parameter, is obtained using the Kissinger and Marotta methods, and the SEM results confirm the change in the Avrami index with the MgO content. |
| Key words:
Crystallization kinetics · Differential thermal analysis · Non-isothermal process |
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