BPAS Journals | Archive Chapters

ABOUT US

JOURNALS

ANNUAL SUBSCRIPTION

OUR TEAM

Join Us

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,
About Journal More Archive Visit IndianJournals.com

Current Issue

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 (T_g) 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.

Download Now