Structural investigation of lithium bismuth borate glasses through Raman and infrared spectroscopies

IF 2.1 3区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

International Journal of Applied Glass Science Pub Date : 2024-07-04 DOI:10.1111/ijag.16678

Elizabeth M. Tsekrekas, Sophia J. Carretto, Doris C. Möncke, Alexis G. Clare

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引用次数: 0

Abstract

The structure of lithium bismuth borate glasses in the compositional series xBi₂O₃–25Li₂O–(75 − x) B₂O₃ was studied with the use of Raman and infrared (IR) spectroscopies. Transparent glasses formed between x = 0 and 55, whereas glass–ceramics formed between x = 60 and 75 mol% Bi₂O₃. Structural investigation on the borate network showed that the glasses were undermodified at high Bi₂O₃ compositions with metaborate, pyroborate, and orthoborate triangles and tetrahedra being present past the stoichiometric orthoborate compositions (O/B = 3). Bi₂O₃ was found to participate in the glass as both a network former and modifier, as observed in the Raman and IR spectra. Optical absorption spectra of the glasses show a redshift of the absorption edge with increased Bi₂O₃. Optical, thermal, and physical properties of the glasses were examined and correlated to the structural evolution.

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通过拉曼光谱和红外光谱研究硼酸铋锂玻璃的结构

利用拉曼光谱和红外光谱研究了成分系列 xBi2O3-25Li2O-(75 - x) B2O3 中硼酸铋锂玻璃的结构。在 x = 0 和 55 之间形成了透明玻璃，而在 x = 60 和 75 mol% Bi2O3 之间形成了玻璃陶瓷。对硼酸盐网络结构的研究表明，当 Bi2O3 含量较高时，玻璃会出现偏硼酸盐、焦硼酸盐和正硼酸盐三角形和四面体，超过了正硼酸盐的化学计量成分（O/B = 3）。从拉曼光谱和红外光谱中可以观察到，Bi2O3 在玻璃中既是网络的形成者，又是改性剂。玻璃的光学吸收光谱显示，随着 Bi2O3 的增加，玻璃的吸收边缘会发生重移。对玻璃的光学、热学和物理特性进行了研究，并将其与结构演变联系起来。

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来源期刊

International Journal of Applied Glass Science MATERIALS SCIENCE, CERAMICS-

CiteScore

4.50

自引率

9.50%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum. Through the solicitation, editing, and publishing of cutting-edge peer-reviewed papers, IJAGS will be a highly respected and enduring chronicle of major advances in applied glass science throughout this century. It will be of critical value to the work of scientists, engineers, educators, students, and organizations involved in the research, manufacture and utilization of the material glass. Guided by an International Advisory Board, IJAGS will focus on topical issue themes that broadly encompass the advanced description, application, modeling, manufacture, and experimental investigation of glass.