NiO-induced crystallization and optical characteristics of Li2O-CaF2-P2O5 glass system

被引：29

作者：

Krishna, G. Murali ^{[1
]}

Gandhi, Y. ^{[1
]}

Veeraiah, N. ^{[1
]}

机构：

[1] Acharya Nagarjuna Univ, Dept Phys, Nuzvid 521201, India

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2008年 / 205卷 / 01期

关键词：

D O I：

10.1002/pssa.200723371

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Li2O-CaF2-P2O5 glasses mixed with different concentrations of NiO (ranging from 0 mol% to 2.0 mol%) were crystallized. The samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy and differential thermal analysis. Studies were extended to optical absorption and magnetic susceptibility of these glass ceramic samples. The XRD and SEM studies reveal the presence of lithium phosphate, calcium phosphate and nickel phosphate crystal phases. The optical absorption studies together with magnetic susceptibility measurements indicate a gradual transformation of nickel ions from tetrahedral sites to octahedral sites (lasing sites) as the concentration of NiO is increased beyond 0.8 mol%.

引用

页码：177 / 187

页数：11