Optical and vibrational studies have been carried out on 6B(2)O(3)
center dot (20 - x)Na2O center dot 10PbO center dot 10Al(2)O(3):xTiO(2) (x=0, 1, 2, 3, 4, and 5 mol%) glasses, in order to understand the role
of TiO2 in the 60B(2)O(3) center dot 20Na(2)O . 10PbO - 10Al(2)O(3)
glass matrix. The X-ray patterns reveal homogeneous glasses over the
entire compositional range. The absorption spectra show that the energy
of the optical band gap (Delta E-opt) and Urbach's energy (E-U)
decreases as TiO2 content increases. The changes observed in the Raman
and IR spectra are related to the BO4 -> BO3 back conversion effect and
the appearance of ``loose'' BO4- groups. The data indicate that
titanium ions act as a network modifier. (C) 2011 Elsevier Inc. All
rights reserved.
%0 Journal Article
%1 WOS:000296404200033
%A de Sousa, N C A
%A de Araujo, M T
%A Jacinto, C
%A Vermelho, M V D
%A Dantas, N O
%A Santos, C C
%A Guedes, I
%C 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
%D 2011
%I ACADEMIC PRESS INC ELSEVIER SCIENCE
%J JOURNAL OF SOLID STATE CHEMISTRY
%K Glass} Infrared spectra; {Raman
%N 11
%P 3062-3065
%R 10.1016/j.jssc.2011.09.011
%T The role of TiO2 in the B2O3-Na2O-PbO-Al2O3 glass system
%V 184
%X Optical and vibrational studies have been carried out on 6B(2)O(3)
center dot (20 - x)Na2O center dot 10PbO center dot 10Al(2)O(3):xTiO(2) (x=0, 1, 2, 3, 4, and 5 mol%) glasses, in order to understand the role
of TiO2 in the 60B(2)O(3) center dot 20Na(2)O . 10PbO - 10Al(2)O(3)
glass matrix. The X-ray patterns reveal homogeneous glasses over the
entire compositional range. The absorption spectra show that the energy
of the optical band gap (Delta E-opt) and Urbach's energy (E-U)
decreases as TiO2 content increases. The changes observed in the Raman
and IR spectra are related to the BO4 -> BO3 back conversion effect and
the appearance of ``loose'' BO4- groups. The data indicate that
titanium ions act as a network modifier. (C) 2011 Elsevier Inc. All
rights reserved.
@article{WOS:000296404200033,
abstract = {Optical and vibrational studies have been carried out on 6B(2)O(3)
center dot (20 - x)Na2O center dot 10PbO center dot 10Al(2)O(3):xTiO(2) (x=0, 1, 2, 3, 4, and 5 mol%) glasses, in order to understand the role
of TiO2 in the 60B(2)O(3) center dot 20Na(2)O . 10PbO - 10Al(2)O(3)
glass matrix. The X-ray patterns reveal homogeneous glasses over the
entire compositional range. The absorption spectra show that the energy
of the optical band gap (Delta E-opt) and Urbach's energy (E-U)
decreases as TiO2 content increases. The changes observed in the Raman
and IR spectra are related to the BO4 -> BO3 back conversion effect and
the appearance of ``loose'' BO4- groups. The data indicate that
titanium ions act as a network modifier. (C) 2011 Elsevier Inc. All
rights reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA},
author = {de Sousa, N C A and de Araujo, M T and Jacinto, C and Vermelho, M V D and Dantas, N O and Santos, C C and Guedes, I},
biburl = {https://www.bibsonomy.org/bibtex/242bd745b2552cb3bba647358d1b5d68d/ppgfis_ufc_br},
doi = {10.1016/j.jssc.2011.09.011},
interhash = {68806cd3a2de56cb02daecde36bddc94},
intrahash = {42bd745b2552cb3bba647358d1b5d68d},
issn = {0022-4596},
journal = {JOURNAL OF SOLID STATE CHEMISTRY},
keywords = {Glass} Infrared spectra; {Raman},
number = 11,
pages = {3062-3065},
publisher = {ACADEMIC PRESS INC ELSEVIER SCIENCE},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {The role of TiO2 in the B2O3-Na2O-PbO-Al2O3 glass system},
tppubtype = {article},
volume = 184,
year = 2011
}