High barium content lead and alkaline-free glasses

被引：4

作者：

Da Silva, Maviael J. ^{[1
]}

Moya, Jose S. ^{[2
]}

Pecharroman, Carlos ^{[2
]}

Sanz, Jesus ^{[2
]}

Mello-Castanho, Sonia ^{[1
]}

机构：

[1] Univ Sao Paulo, IPEN, Sao Paulo, Brazil

[2] CSIC, ICMM, Madrid, Spain

来源：

MATERIALS LETTERS | 2014年 / 136卷

关键词：

Refraction index; Ba-Glasses; Lead-Free glasses; OPTICAL-PROPERTIES; REFRACTIVE-INDEX;

D O I：

10.1016/j.matlet.2014.08.094

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Four glass compositions of the system BaO-Al2O3-SiO2 with high content of BaO > 50% mol and with B2O3 addition (3-10 wt%) were melted at 1400 degrees C. The effect of alkaline earth BaO oxide on the glass phase separation and on refraction index n is investigated. IR and MAS-NMR spectroscopy are used for structural characterization. Finally stable alkaline free glasses with a content of BaO ranging from 47.4 Mol.% to 54.5 Mol.% and with a n=1.62 +/- 0.01 at 468.1 nm have been obtained. (C) 2014 Elsevier B.V. All rights reserved.

引用

收藏

页码：345 / 348

页数：4

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