Investigating CoO Doping in Sodium Magnesium Borosilicate Glasses: Impacts on Structural, Thermal, Optical, and Mechanical Properties

作     者：Marzouk, M. A. Bahaa, R. M. Hassaneen, M. E. Othman, A. M. 

作者机构：Natl Res Ctr Glass Res Dept 33 EL Bohouth St Former EL Tahrir StPO 12622 Dokki Giza Egypt Pharos Univ Alexandria Canal Mahmoudiah St Smouha Alexandria Egypt Helwan Univ Fac Appl Arts Glass Design Dept Cairo Egypt Benha Univ Fac Appl Arts Ind Design Dept Qalubiya Egypt Ahram Canadian Univ Fac Design & Creat Arts Cairo Egypt 

出 版 物：《JOURNAL OF ELECTRONIC MATERIALS》 (J Electron Mater)

年 卷 期：2025年第54卷第4期

页      面：3280-3294页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：The authors declare no funds 

主　　题：Borosilicate glass thermal optical mechanical 

摘      要：Borosilicate glasses with a base chemical composition of 45SiO2-27B2O3-12Na2O-11MgO-5Al2O3, and containing varying amounts of CoO, were prepared using the conventional melting and quenching method. X-ray diffraction confirmed the absence of distinct crystalline phases, while Fourier transform infrared spectroscopy highlighted key structural characteristics, including vibrational modes linked to Si-O-Si bonds and borate groups (BO4 and BO3). The addition of CoO enhanced the thermal properties of the glass, indicating that performance can be optimized through careful control of oxide content. Optical studies revealed that the undoped glass had an ultraviolet (UV) absorption peak at 246 nm, while CoO-doped samples showed visible absorption features at 515 nm and 620 nm due to specific electronic transitions. Increasing CoO concentrations decreased the optical bandgap and Urbach energies, with consistent refractive indices across samples. Changes in density and molar volume were associated with structural modifications from CoO additions, particularly a notable deviation at 0.4 mol.% CoO, likely due to increased non-bridging oxygens. Additionally, CoO significantly improved various elastic moduli, emphasizing the influence of Co2+ ions on the glass network structure.