Physical, thermal and structural properties of Calcium Borotellurite glass system

被引：54
|
作者：
Paz, E. C. [1 ,2 ]
Dias, J. D. M. [1 ]
Melo, G. H. A. [1 ,3 ]
Lodi, T. A. [1 ]
Carvalho, J. O. [1 ,4 ]
Facanha Filho, P. F. [1 ]
Barboza, M. J. [1 ]
Pedrochi, F. [1 ]
Steimacher, A. [1 ]
机构：
[1] CCSST UFMA, Imperatriz, MA, Brazil
[2] IFMA, Acailandia, MA, Brazil
[3] IFMA, Imperatriz, MA, Brazil
[4] IFTO, Araguaina, TO, Brazil
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2016年 / 178卷
关键词：
Glasses; Thermal properties; Raman spectroscopy and scattering; Fourier transform infrared spectroscopy (FTIR); Optical materials; BORO-TELLURITE GLASSES; OPTICAL-PROPERTIES; LUMINESCENCE BEHAVIOR; IONS; ABSORPTION; RAMAN; TEO2; IR; NA; HEAT;
D O I：
10.1016/j.matchemphys.2016.04.080
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work the glass forming ability in Calcium Borotellurite (CBTx) glass system was studied. Six glass samples were prepared by melt-quenching technique and the obtained samples are transparent, lightly yellowish, with no visible crystallites. The structural studies were carried out by using XRD, FTIR, Raman Spectra, density measurements, and the thermal analysis by using DTA and specific heat. The results are discussed in terms of tellurium oxide content and their changes in structural and thermal properties of glass samples. The addition of TeO2 increased the density and thermal stability values and decreased glass transition temperature (Tg). Raman and FTIR spectroscopies indicated that the network structure of CBTx glasses is formed by BO3, BO4, TeO3, TeO3+1 and TeO4 units. CBTx system showed good glass formation ability and good thermal stability, which make CBTx glasses suitable for manufacturing process. and a candidate for rare-earth doping for several optical applications. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：133 / 138
页数：6
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