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A comparative study of the experimental and the theoretical elastic data of Tm3þ doped zinc borotellurite glass


Citation

L., Hasnimulyati and Mohamed Kamari, Halimah and Zakaria, Azmi and Shaari, Abdul Halim and Ishak, M. (2017) A comparative study of the experimental and the theoretical elastic data of Tm3þ doped zinc borotellurite glass. Materials Chemistry and Physics, 192. 228 - 234. ISSN 0254-0584; ESSN: 1879-3312

Abstract

A series of glass samples with composition {[(TeO2)0.7(B2O3)0.3]0.7[ZnO]0.3}1-x{Tm2O3}x was prepared by using the melt-quenching technique. Then, the samples were characterized by using the densimeter, FTIR and ultrasound technique. The variations of density, molar volume, ultrasonic velocity, elastic moduli,and Poisson’s ratio were discussed and correlated with the composition of the glass samples and the FTIR spectra. It was found that the addition of thulium caused bridging and non-bridging oxygen to be formed at the same time due to the different effect that occur to tellurite and borate network as thulium is added. As thulium is varied from 1 until 3 mol%, bridging oxygens had been found to occur at a high rate and caused the ultrasonic velocity to increase. Nonetheless, when thulium oxide exceeded 3 mol%, nonbridging oxygens formed at a high rate. As a result, ultrasonic velocity was reduced. Furthermore, the values of elastic moduli (including bulk, shear, Young’s modulus, and Poisson’s ratio) were compared with the data that were calculated theoretically by using bulk compression, Makishima-Mackenzie, and Rocherulle models.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Elsevier
Keywords: Borotellurite glass; Bulk compression model; Makishima-Mackenzie model; Rocherulle model; Thulium
Depositing User: Nida Hidayati Ghazali
Date Deposited: 03 Apr 2019 04:38
Last Modified: 03 Apr 2019 04:38
URI: http://psasir.upm.edu.my/id/eprint/60634
Statistic Details: View Download Statistic

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