Gamma irradiation on bismuth borate glasses doped by Eu⁠3+ ions:Structural, optical and mechanical investigations

Wagh, Akshatha and Kumari, Manjunath and Hegde, Vinod and Kamath, Sudha D (2018) Gamma irradiation on bismuth borate glasses doped by Eu⁠3+ ions:Structural, optical and mechanical investigations. Optik - International Journal for Light and Electron, 160 (1). pp. 298-306. ISSN 0030-4026

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Abstract

The research article concentrates on the effects of gamma rays [50kGy] over Europium doped bismuth borate glass systems based on 10ZnO-5Na⁠2O⁠3-10Bi⁠2O⁠3-(75-x)B⁠2O⁠3-xEu⁠2O⁠3 (where x=0.1, 0.3, 0.5, 1.0, 1.5), synthesized through melt-quench technique. Structural changes in the glasses after gamma irradiation were probed by measuring the basic parameter density. XRD confirmed amorphous nature of the glasses. Optical properties were investigated for their lasing behavior through spectroscopic technique UV–vis–NIR absorption. Under mechanical characterization, Vickers (H⁠v) indentation tests were performed with mechanical loads 1000gf and 500 gf. A theoretical model, Makishima and Mackenzie (M-M), gave reasonable estimation of different constants of elasticity (Young’s modulus (E), bulk modulus (K), shear modulus (S), Poisson’s ratio (μ)

Item Type: Article
Subjects: Engineering > MIT Manipal > Physics
Depositing User: MIT Library
Date Deposited: 23 Jun 2018 10:41
Last Modified: 23 Jun 2018 10:41
URI: http://eprints.manipal.edu/id/eprint/151337

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