This paper reports the rapid melt quenching technique preparation for the new family of bismuth-lead germanate glass (BPG) systems in the form of (GeO2)60–(PbO)40−x–(½Bi2O3)x where x = 0 to 40 mol%. Their densities with respect of Bi2O3 concentration were determined using Archimedes’ method with acetone as a floatation medium. The current experimental data are compared with those of bismuth lead borate (B2O3)20–(PbO)80−x–(Bi2O3)x. The elastic properties of BPG were studied using the ultrasonic pulse-echo technique where both longitudinal and transverse sound wave velocities have been measured in each glass samples at a frequency of 15 MHz and at room temperature. Experimental data shows that all the physical parameters of BPG including density and molar volume, both longitudinal and transverse velocities increase linearly with increasing of Bi2O3 content in the germanate glass network. Their elastic moduli such as longitudinal, shear and Young’s also increase linearly with addition of Bi2O3 but the bulk modulus did not. The Poisson’s ratio and fractal dimensionality are also found to vary linearly with the Bi2O3 concentration.
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机译：本文以（GeO 2 ） 60 –（PbO）的形式报道了新型铋铅锗酸盐玻璃（BPG）系统的快速熔体淬火技术制备。 40 − x –（½Bi 2 O 3 ） x ，其中x = 0至40摩尔％。使用阿基米德法，以丙酮为浮选介质，测定了其相对于Bi 2 O 3 浓度的密度。将当前的实验数据与硼酸铋（B 2 O 3 ） 20 –（PbO） 80- < / sub> x –（Bi 2 O 3 ） x 。使用超声脉冲回波技术研究了BPG的弹性特性，其中在15 MHz的频率和室温下在每个玻璃样品中测量了纵向和横向声波速度。实验数据表明，随着德国玻璃网络中Bi 2 O 3 含量的增加，BPG的所有物理参数（包括密度和摩尔体积，纵向和横向速度）均线性增加。 。随着Bi 2 O 3 的加入，它们的弹性模量（如纵向，剪切和杨氏）也呈线性增加，但体积模量却没有。泊松比和分形维数也随Bi 2 O 3 浓度线性变化。
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