Effect of barium oxide to the structural and elastic properties of bismuth borosilicate glass

Chen, Zhe Ying (2022) Effect of barium oxide to the structural and elastic properties of bismuth borosilicate glass. [Project Paper] (Submitted)

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Abstract

As time evolved, the utilization of many types of materials has been used to produce high quality glass with low cost such as bismuth borosilicate glass. However, the most recent studies focus on the effect of barium oxide on the optical properties and radiation shielding properties of bismuth borosilicate glass system. In this study, barium oxide is used as the additional materials in order to study the effect of barium oxide to the structural and elastic properties of bismuth borosilicate glass. The synthesis of barium bismuth borosilicate glass systems from raw materials which is BaO, Bi2O3, B2O3 and SiO2 powder based on the empirical formula of x(BaO)- 50- x (Bi2O3)-20 (B2O3)-30 (SiO2) with x = 0, 2, 4, 6, 8, and 10 mol % by using the conventional melt-quenching techniques followed by the annealing processes. The glass system is then studied in both structural and elastic properties. The structural properties of the glasses were characterized by density, molar volume, oxygen molar volume and oxygen packing density whereas the elastic properties of the glasses were characterised by XRD and ultrasonic velocities. The experimental elastic moduli that used to investigate the elastic properties of glass was including longitudinal modulus, shear modulus, Young’s modulus, bulk modulus, microhardness, and Poisson’s ratio. In this study, Makishima and Mackenzie model was also discussed and explained more to investigate the theoretical elastic moduli of the glasses system. The XRD analysis was expected to reveal the non-crystalline glassy amorphous nature of the glass. The experimental results show that the density of the glass sample increase from 4.204 to 4.258 g/cm3 and molar volume of the glass sample was decrease from 63. 019 to 54.877 cm3 /mol. The XRD analysis revealed that the glass sample studied shows the characteristics of the amorphous nature without any sharp lines or peaks which indicate the amorphous phase of the precursor glasses. Furthermore, from the results shown in experimental elastic moduli measurements, the values for the longitudinal modulus increase from 73.95 to 79.21 GPa, shear modulus increases from 19.89 to 22.49 GPa, Bulk modulus increases from 47.43 to 49.22 GPa, Young’s modulus increase from 52.35 to 58.56 GPa, Poisson’s ratio changed from 0. 0.316 to 0.302 and microhardness increase from 2.440 to 2.968 GPa. Lastly, by applying Makishima and Mackenzie model, longitudinal modulus increases from 24.868 to 28.076 GPa, shear modulus increases from 11.673 to 12.563 GPa, Bulk modulus increases from 9.304 to 11.325 GPa, and Young’s modulus increase from 24.693 to 27.515 GPa while microhardness decreases from 3.442 to 3.391 GPa and Poisson’s ratio increase from 0.058 to 0.095. The agreement between theoretical and experimental data of longitudinal, shear, bulk moduli and Young’s modulus is satisfactory for majority of samples but not suitable for predicting the data of microhardness and Poisson’s ratio. From the research done, the outcome indicates that BaO- Bi2O3-B2O3-SiO2 glass would be a promising material in the field of optoelectronics as a potential optical amplifier. The potential applications that produce from these glasses was optical amplifier media and the tunable laser deviser.

Item Type:	Project Paper
Faculty:	Fakulti Sains
Depositing User:	Ms. ROHANA ALIAS
Date Deposited:	25 Jun 2024 10:05
Last Modified:	25 Jun 2024 10:05
URI:	http://psaspb.upm.edu.my/id/eprint/1983

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