Some physical properties of (Bi2O3)x(BaO)0.5-x(B2O3)0.5 glasses

被引：3
|
作者：
Tichy, Ladislav [1 ]
Ticha, Helena [2 ]
Herzigova, Lucie [2 ]
Ozdanova, Jitka [2 ]
机构：
[1] Acad Sci Czech Republic, Inst Macromol Chem, Joint Lab Solid State Chem, Vvi, Prague 12006, Czech Republic
[2] Univ Pardubice, Fac Chem Technol, Pardubice 53210, Czech Republic
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 126卷 / 1-2期
关键词：
Oxide glasses; Raman spectroscopy; Optical properties; BISMUTH BORATE GLASSES; NONLINEAR-OPTICAL COEFFICIENTS; HEAVY-METAL OXIDES; CRYSTAL-STRUCTURE; RAMAN-SCATTERING; SINGLE-CRYSTAL; BARIUM BORATE; BI2O3; CONTENT; BIB3O6; BIBO; BAND-GAP;
D O I：
10.1016/j.matchemphys.2010.11.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of (Bi2O3)(x)(BaO)(0.5-x)(B2O3)(0.5) glasses were prepared from pure oxides. The glass transition temperature little decreased from 450 to 419 degrees C with the increase in x from 0.2 to 0.4. The coefficient of thermal expansion was found at around 10 +/- 1 ppm C-1, practically independent on x. The structural make-up of the glasses was suggested to be formed by structural groups of BaBi2B4O10 and BiBO3 for 0.25 < x <= 0.5, BaBi2B4O10 and BaB2O4 for x < 0.25 and by BaBi2B4O10 for x = 0.25. The optical band gap was determined in the region 3.35-3.54 eV and the coefficient of the temperature dependence of the optical gap for the temperatures between 30 and 250 degrees C was found nearly constant at around (5.5 +/- 0.5) x 10(-4) eV K-1. The non-linear refractive index of the studied glasses was estimated from the optical gap values at around 0.9 x 10(-11) esu. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：289 / 294
页数：6
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