Elastic properties and spectroscopic studies of Na2O�?�ZnO�?�B2O3 glass system

Bulletin of materials science

R V Anavekar¹  V C Veeranna Gowda¹ 

[1] Department of Physics, Bangalore University, Bangalore 560 056, India$$Department of Physics, Bangalore University, Bangalore 560 056, IndiaDepartment of Physics, Bangalore University, Bangalore 560 056, India$$

关键词: Borate glasses;    elastic properties;    MASâ€�?�NMR;    IR;    network former.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Elastic properties, ¹¹B MASâ€�?�NMR and IR spectroscopic studies have been employed to study the structure of Na₂Oâ€�?�ZnOâ€�?�B₂O₃ glasses. Sound velocities and elastic moduli such as longitudinal, Young’s, bulk and shear modulus have been measured at a frequency of 10 MHz as a function of ZnO concentration. Both sound velocities and elastic moduli increase with increasing ZnO concentration. Poisson’s ratio and Debye temperature were also found to increase with ZnO concentration. ¹¹B MASâ€�?�NMR and IR spectra show characteristic features of borate network and compositional dependence trends as a function of Na₂O/ZnO concentration. The results are discussed in view of borate network and dual structural role of Zn²⁺ ion into the network. The results indicate that the Zn²⁺ ions are likely to occupy network forming positions in this glass system.

【 授权许可】

Unknown