The extraction of CaO from waste eggshell can be used to produce new product known as calcium borate glass doped manganese (IV) oxide. A tertiary (B₂O₃)_0.6 [(CaO)_0.4]_1-x (MnO₂)_x glass system with 0.010 ≥ x ≥ 0 M fraction were prepared using conventional melt-quenching technique. XRF spectroscopy confirms CaO as the main constituent in the calcined eggshell. XRD spectra unveils the two amorphous humps of the glass samples. FTIR analysis reveals the typical features of CaCO₃ and B₂O₃ network. The density has opposite behaviour with molar volume as MnO₂ content increases. Next, the optical band gap and refractive index are evidencing the formation of non-bridging oxygen in the glass matrix. The present glass system also has low polarizability, acidic in nature and have tendency to metallizing. The elastic properties of glass samples were determined using the ultrasonic technique. Elastic moduli such as longitudinal modulus, shear modulus, Young's modulus, bulk modulus, Poisson's ratio and hardness of the glass system were discussed.

从废蛋壳中提取 CaO 可用于生产称为硼酸钙玻璃掺杂锰 (IV) 氧化物的新产品。使用常规熔体淬火技术制备具有 0.010 ≥ x ≥ 0 M 分数的叔 (B ₂ O ₃ ) _0.6 [(CaO) _0.4 ] _1-x (MnO ₂ ) _x玻璃系统。XRF 光谱证实 CaO 是煅烧蛋壳中的主要成分。XRD 谱揭示了玻璃样品的两个无定形驼峰。FTIR 分析揭示了 CaCO ₃和 B ₂ O ₃网络的典型特征。密度与摩尔体积的行为相反，与 MnO ₂内容增加。接下来，光学带隙和折射率证明玻璃基质中形成了非桥接氧。本玻璃体系还具有低极化率、酸性和金属化倾向。使用超声波技术测定玻璃样品的弹性特性。讨论了玻璃体系的弹性模量，如纵向模量、剪切模量、杨氏模量、体积模量、泊松比和硬度。