锂离子导电微晶玻璃晶相与残余玻璃相定量分析  

Quantitative analysis of crystalline phases and residual glass in lithium ion conducting glass ceramics

作　　者：何坤[1] 祖成奎[1] 王衍行[1] 韩滨[1] 陈江[1] 赵慧峰[1] 刘永华[1] 殷先印[1] 

机构地区：[1]中国建筑材料科学研究总院石英与特种玻璃研究院,北京100024

出　　处：《功能材料》2015年第23期23021-23024,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(60808024)

摘　　要：以Li2O-Al2O3-GeO2-P2O5 锂离子导电微晶玻璃为研究对象,通过XRD、SEM-EDS、ICP和Ri-etveld结构精修等测试分析方法,对微晶玻璃样品的微观结构形貌进行了表征,对不同晶化制度条件下制得的微晶玻璃样品物相组成、各晶相含量和残余玻璃相内部各种氧化物的摩尔比进行了定性和定量分析.结果表明,经600-950℃晶化处理的微晶玻璃主晶相均为LiGe2（PO4）3 ,杂质相为GeO2和AlPO4,各晶相含量和残余玻璃相成分可以精确定量化,这种定量分析方法准确可行,在微晶玻璃的定量分析中具有重要推广作用.In this paper,fabrication and characterization of sheet specimens based on the Li_2O-Al_2O_3-GeO_2-P_2O_5 glass ceramics system are reported. Based on Rietveld method of X-ray techniques,volume additivity rule,ICP and SEMEDS,a new method was developed to quantitatively analyze the crystal phase composition and oxide composition of residual in glass ceramics after crystallized at different temperature. As a result,the major phase of the glass ceramics was found to be LiGe_2(PO_4)_3,with GeO_2 and AlPO_4 as the impurity phases. More ever,quantitative analysis of crystal phases and the residual glass phase in the glass ceramics can be achieved using the rietveld method. This quantitative analysis method can be widely used in other glass ceramics due to its accuracy and feasibility.

关 键 词：RIETVELD结构精修 微晶玻璃 加和法 扫描电子显微镜G电子能谱分析 

分 类 号：TQ426.91[化学工程]