Influence of Al2O3 additions on crystallization mechanism and conductivity of Li2O-Ge2O-P2O5 glass-ceramics

被引：16

作者：

He Kun ^{[1
]}

Wang Yanhang ^{[1
]}

Zu Chengkui ^{[1
]}

Zhao Huifeng ^{[1
]}

Liu Yonghua ^{[1
]}

Chen Jiang ^{[1
]}

Han Bin ^{[1
]}

Ma Juanrong ^{[1
]}

机构：

[1] China Bldg Mat Acad, Beijing 100024, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2011年 / 406卷 / 20期

关键词：

Crystallization; Glass-ceramics; Superconducting; Electrical properties; KINETICS;

D O I：

10.1016/j.physb.2011.07.033

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The crystallization mechanism and conductivity of lithium aluminum germanium phosphate [LAGP] glass-ceramics fabricated from Li1+xAlxGe2-x(PO4)(3) (x=0.0-0.7) glass system were investigated as a function of Al2O3 additions. A non-isothermal analysis was performed to study the crystallization behavior of LAGP glass-ceramics at various heating rates (5-25K min(-1)) by the Kissinger equation and the Augis-Bennett equation, illustrating volume crystallization for the glass-ceramics. The crystal identification and microstructure in glass-ceramics containing various Al2O3 contents were analyzed by means of XRD and FESEM. The main phase of the glass-ceramics was found to be LiGe2(PO4)(3), with AlPO4 as the impurity phase. Additionally the highest total ionic conductivity (5.8 x 10(-4) S/cm) at room temperature was obtained when x=0.5 for Li1+xAlxGe2-x(PO4)(3) (x=0.0-0.7) glass-ceramics, suggesting that it was a promising electrolyte for practical application in all-solid-state lithium batteries. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：3947 / 3950

页数：4

共 15 条

[1] IONIC-CONDUCTIVITY AND SINTERABILITY OF LITHIUM TITANIUM PHOSPHATE SYSTEM [J].