Tellurite 35V2O5-(65-x)TeO2-xLi2O:(x=10-50mol%) glass system with reduction of TeC>2 and U2O addition have been prepared by melt-quenching method. Elastic properties together with structural properties of the glasses were investigated by measuring both longitudinal and shear velocities using the pulse-echo-overlap technique at 5MHz and Fourier Transform Infrared (FTIR) spectroscopy, respectively. Ultrasonic velocities(F/, and Vs) independent longitudinal and shear modulus (L and G ),Bulk and Young's modulus (K and G) ,Debye temperature and Poisson's ratio were observed to initially increase atx=20 mol% were suggested due to strengthen of glass network rigidity as a result of BO ions was more dominance compared to NBO ions for this glass composition. Shear, G and Young's, E modulus showed decreasing trend for addition of IAJO at x>20 mol%. FTIR analysis showed an increase in non-bridging oxygen (NBO) as indicated by the increase in intensity of VO4 assigned peaks and the decrease in intensity of Te04 assigned peaks for JC>20 mol% indicates that Li acts as a modifier in the glass network.
| Item Type: | Student Project |
|---|---|
| Creators: | Creators Email / ID Num. Wan Nasir, Wan Asniza UNSPECIFIED |
| Contributors: | Contribution Name Email / ID Num. Thesis advisor Yahya, Ahmad Kamal (Prof Dr.) UNSPECIFIED |
| Subjects: | Q Science > QC Physics > Electricity and magnetism Q Science > QC Physics > Nuclear and particle physics. Atomic energy. Radioactivity |
| Divisions: | Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences |
| Programme: | Bachelor of Science (Hons.) Physics |
| Keywords: | Tellurite, Fourier Transform Infrared (FTIR), Ultrasonic velocities |
| Date: | 2013 |
| URI: | https://ir.uitm.edu.my/id/eprint/45399 |
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