Compositional effects on the optical and thermal properties of sodium borophosphate glasses

被引:33
作者
Lee, ETY [1 ]
Taylor, ERM [1 ]
机构
[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
glasses; optical properties; thermal expansion;
D O I
10.1016/j.jpcs.2004.08.030
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of sodium borophosphate glasses of the composition (1-x)NaPO3-xB(2)O(3) have been synthesised from Na2CO3, B2O3 and P2O5 and their optical and thermal properties investigated. The results show that refractive index (n) and glass transition temperature (T-g) show a maximum at about B/(B+P)=0.6 while thermal expansion coefficient (a) and thereto-optic coefficient (dn/dT) change monotonically with the B/(B+P) ratio. These observations can be interpreted based on the incorporation of BO3 and BO4 units into the glass structural network. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:47 / 51
页数:5
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