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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0146

    • Keywords

       

      Phosphate glass; abnormality; resonance; cation; X-ray photoelectron spectroscopy; fourier transform infrared spectroscopy.

    • Abstract

       

      This research investigates the causes of abnormal phenomena that arise when alkaline earth elements are added to sodium phosphate glass, as network modifiers, through a structure-based study. Many studies have shown that the addition of MgO and ZnO to phosphate glass induces peculiarities in the physical properties, which are attributed to the structural changes caused by the added elements. In this work, sodium phosphate glass was prepared by adding alkaline earth oxides, such as CaO, BaO and CuO, all of which exhibit an inflection point, where the density changes. Abnormalities, similar to those observed in the previous studies, were observed in these cases also. X-ray diffraction was performed to analyse the structure of the prepared glass, and it was revealed that there was no change in the crystal structure, and an amorphous phase was identified. Fourier transform infrared spectroscopy (FT-IR) confirmed the difference in the short-range order of the glass structure. However, the reason for the resonance structure, when divalent cations added, was not fully confirmed through FT-IR. X-ray photoelectron spectroscopy was conducted to further confirm the abnormality in the glass. The abnormality caused by the addition of alkaline earth elements to phosphate glass was explained based on the results of these analyses.

    • Author Affiliations

       

      HYUN JOON LEE1 JONG HWAN KIM2 LIU LIYU1 JAE MIN CHA2 BONG KI RYU1

      1. Department of Materials Science and Engineering, Pusan National University, Busan 609-735, Republic of Korea
      2. Innovative Graduate Education Program for Global High-Tech Materials and Parts, Busan 46241, Republic of Korea

    • Dates

       
      Published
      26 July 2022
      Manuscript received
      15 January 2022
      Accepted
      14 April 2022
      Final version published online
      26 July 2022

  • Bulletin of Materials Science | News

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      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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