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Bulletin of Pure and Applied Sciences- Physics (Started in 1982)
eISSN: 2320-3218
pISSN: 0970-6569
Impact Factor: 6.987 (2018)
DOI: 10.5958/2320-3218
Editor-in-Chief:  Prof. Madan jee,
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Article Details

Bulletin of Pure and Applied Sciences- Physics (Started in 1982)
Year : 2018, Volume & Issue : Volume-37D, Issue-2 (July-December)
Page No. : 146-157, Article Type : Original Aticle
Article DOI : 10.5958/2320-3218.2018.00020.9 (Received on 26.06.2018, Accepted on 12.11.2018)

Physical and Structural Studies of (30-x) BaO-xAl2O3-69.5B2O3-0.5MnO2 Glasses

Mohamad Raheem Ahmed1,*, M. Narasimha Chary2, Md. Shareefuddin2
Author’s Affiliation : 1Muffakham Jah College of Engineering and Technology, Osmania University, Hyderabad, Telangana 500034, India. 2Department of Physics, Osmania University, Hyderabad, Telangana 500007, India

Corresponding Author : Mohamad Raheem Ahmed Assistant Professor, Muffakham Jah College of Engineering and Technology, Osmania University, Hyderabad, Telangana 500034, India.,
E-Mail:-[email protected]


Abstract

(30-x) BaO-xAl2O3-69.5B2O3-0.5MnO2 (0 ≤ x ≤ 15 mol%) (BABM) glasses have been prepared using melt quench method.  In the present work, the main focus on the role of Al2O3 in the glass composition. Differential scanning calorimeter (DSC) studies show that a glass transition temperature (Tg) decreases with an increase of Al2O3 content which was explained on the basis of NBO’s. The FTIR spectra exhibit to know BO3 and BO4 structural units, band assignments confirms Ba2+, Mn-O and bending vibration of Al-O in [AlO4]. The Raman band at~786 cm-1 has clearly shown the presence of aluminium bond.  It has been found that an increasing the Al2O3 content increases the bond length of the Al-O bond in AlO4 which leads to an increase in molar volume and decrease density. 

Keywords

Barium alumino borate glasses, Physical properties, Structural studies.
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