Optical Analysis of Metal Oxide Borosilicate (xCaO(1-x-z) SiO2 zB2O3) glasses with varying concentrations of boric oxide (B2O3)
Glass sample compositions of xCaO(1-x-z)-SiO2 zB2O3 with constant nominal CaO of x=33.33 mol% and varying concentrations of B2O3 as z=50,60 and 66.67 mol% are prepared by conventional melt quench technique. Fourier transform infrared (FTIR) spectra of xCaO(1-x-z)-SiO2 zB2O3 glass system has been measured in the spectral range 400–4000 cm−1 low-frequency region 1700cm-1 to 400cm-1 and high-frequency region 4000cm-1 to 1700cm-1) at room temperature to understand the characteristic frequencies of the chemical bonds, bonding mechanisms and structure of electron shell of atoms, for the purpose to determine the molecular structure of the composition. It is found that the melting temperature of the glasses decreases with the increase of B2O3 concentration and the melting temperature in the range of 950oC-1100oC for the samples which consist of 50, 60, and 66.67 mol% of B2O3. In the low-frequency region (1700cm-1 to 400cm-1) the spectra of high B2O3 containing glass showed an increased number of distinct peaks and several broad Gaussian in the thigh-frequency region (1700cm-1 to 400cm-1). All the spectra are based on line corrected and deconvoluted to the appropriate number of Gaussians. Fourier transform infrared (FTIR) deconvoluted spectra were analyzed to determine the exact position and relative amounts of the IR bands responsible for the different silicate borates units. The distinct peaks and peak position of the deconvoluted Gaussians are assigned to Si-O-Si, B-O-B, Si-O-Ca, Si-O etc. bonds based on the previous scientific investigations. The presence of B2O3 in the materials suggests that B3+ occupies the network position and for the linkage Si-O-B in the glasses. The amorphous nature, the surface topography and composition of the prepared glasses was checked by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques respectively on optical inspection, did not show any evidence of phase separation, and all glasses are homogeneous.
 J. Wu, J.F. Stebbins, Quench rate and temperature effects on boron coordination in alumino borosilicate melts, J. Non-Cryst. Solids 356 (2010) 2097-2108.
 M.B. Østergaard, R.E. Youngman, M.N. Svenson, S.J. Rzoska, M. Bockowski, L.R. Jensen, et al., Temperaturedependent densification of sodium borosilicate glass, RSC Adv. 5(2015) 78845-78851.
 L. Wondraczek, S. Krolikowski, H. Behrens, Kinetics of pressure relaxation in a compressed alkali borosilicate glass, J. Non-Cryst. Solids 356 (2010) 1859-1862.
 L. Wondraczek, S.Sen, H. Behrens, R. Youngman, Structure –energy map of alkali borosilicate glasses; effects of pressure and temperature, Phys.Rev. B 76 (2017) (14202-1-8).
 M.M. Smedskjaer, R.E. Youngman, S. Striepe, M. Potuzak, U. Bauer, J.Deubener, et al., Irreversibility of pressure induced boron speciation change in glass, Sci. Rep. 4 (2014) 1-5.
 W. H. Zachariasen, J. Am. Ceram. Soc., 54, 3841(1932).
 T. W. McMillan, Glass Ceramics, Academic press, London, (1979).
 R. Becker and W. Doering, Ann. Phys. 24, 719-752 (1935)
 Introduction to spectroscopy by D.L. Pavia.
 Y.M. Moustafa, K. El-Egili, J. Non-Cryst. Solids 240 (1998) 144.
 M.R. Ahsan, M.G. Mortuza, Phys. Chem. Glasses 42 (1) (2001) 1.
 M.R. Ahsan, M.G. Mortuza, Journal of Non-Crystalline Solids 351 (2005) 2333–2340.
 G¨ unzler, H. and Gremlich, H.-U, IR Spectroscopy: An Introduction, Wiley-VCH, Weinheim, Ger-many, 2002.
 B.P. Strugham and S. walker, Spectroscopy, Chapman and Hall. Vol. 2. (1976).
 Y. R. Sharma, Elementary Organic Spectroscopy, S. Chand & Company Ltd. New Delhi (2002).
 K. EL-Egili. J. Physica B, 325 (2003) 340-348.
 W. Junpeng, C. Jinshu, L. Ping, Journal of Wuhan University of Technology- Master.Sci.Ed.Jun2008.
 J.I Khohli, R.A. Condrate Se. J.E. Shelby, Phys, Chem, Glasses 34 (3) (1993) 81.
 A.T.G. Kullberg, A.A.S. Lopes, R.C.C. Monteiro / Journal of Non-Crystalline Solids 468 (2017) 100–104.
 K. Annapurna, M. Das, P. Kundu, R.N. Dwivedi, S. Buddhudu, Spectral properties of Eu3+: ZnO–B2O3–SiO2glasses, J. Mol. Struct. 741 (2005) 53–60.
 A. Tarafder, A.R. Molla, S. Mukhopadhyay, B. Karmakar, Fabrication and enhanced photoluminescence properties of Sm3+-doped ZnO-Al2O3-B2O3-SiO2glass derived willemite glass-ceramic nanocomposites, Opt. Mater. (Amst). 36 (2014),1463–1470.
 R. Ciceo-Lucacel, I. Ardelean / Journal of Non-Crystalline Solids 353 (2007) 2020-2024.
 C. Dayanan et al., J. Mater. Sci.31, 1945-1967 (1996).
 S Thirumaran & N Prokash, Indian and Applied Physics, Vol.53, February 2015, pp.82 92.
 A.H. Khafagy, M.A. Ewaida, A.A. Higazy, M.M.S. Ghoneim, I.Z. Hager and R.ELBahnasawy. Mater Sd. 27,1439 (1992).
 N Srinivasa Rao et al, Spectroscopic investigations of in - glasses; Ms received 20 March 2006; revised 15 june 2006.
 Chen A and James P F, J Non-Cryst. Solids. 100 (1988) 353.
 S. Mandal et al., Journal of Materials Research, Vol.15, No.1, Jan 2000.
 S. Mandal et al., Journal of Materials Research, Vol.15, No.1, Jan 2000.
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