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Ultrasonic studies of (TeO2)50–(V2O5)50?x(TiO2)x glasses
Affiliation:1. Department of Physics, Faculty Science, Universiti Teknologi Malaysia, Skudai, Johor Bahru 81310, Malaysia;2. UniSZA Science and Medicine Foundation Centre, Universiti Sultan Zainal Abidin, Gong Badak Campus, Gong Badak, Kuala Nerus 21300, Terengganu;3. School of Physics, Universiti Sains Malaysia, USM, Penang 11800, Malaysia;4. Physics Department, College of Education, Salahaddin University-Erbil, Iraq-Erbil
Abstract:New ternary tellurite glasses in the form (TeO2)50–(V2O5)50?x(TiO2)x have been prepared. Both longitudinal and shear ultrasonic velocities were measured in different compositions of the glass system by using the pulse-echo method at 5 MHz frequency and at room temperature. The elastic properties of ternary telluirte glasses (TeO2)50–(V2O5)50?x(TiO2)x were measured as a function of composition. The ultrasonic velocity data, the density, the calculated elastic moduli, micro-hardness, softening temperature, and Debye temperature depend on the glass composition. By calculating the number of network bonds per unit volume, the average stretching force constant, and the average ring size, information about the structure of the glass can be deduced. Comparison between the calculated and the experimental elastic moduli and Poisson's ratio have been carried out.
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