Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses
The melt-quenching technique was used to produce 39CdO–10Al2O3-(51-x) P2O5: xMnO glasses (x = 0, 0.1, 0.2, 0.3, and 0.4 wt.%). Various stability factors were calculated and presented from DTA analysis. The stability of the glass network appears to increase with the increase of MnO concentration, acc...
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6253069 |
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| author | B. Kassa J. Leta Tesfaye B. Bulcha R. Kiran T. Deepak Dayanand Lal S. Venkatesh R. Krishnaraj |
| author_facet | B. Kassa J. Leta Tesfaye B. Bulcha R. Kiran T. Deepak Dayanand Lal S. Venkatesh R. Krishnaraj |
| author_sort | B. Kassa |
| collection | DOAJ |
| description | The melt-quenching technique was used to produce 39CdO–10Al2O3-(51-x) P2O5: xMnO glasses (x = 0, 0.1, 0.2, 0.3, and 0.4 wt.%). Various stability factors were calculated and presented from DTA analysis. The stability of the glass network appears to increase with the increase of MnO concentration, according to the findings. IR spectral analysis of these glasses exhibited several symmetrical and asymmetrical bands due to phosphate groups. The observed change in these band intensities with the rise in MnO concentrations, ranging from 0.1 wt.% to 0.4 wt.%, shows an increase in the stability of the glass network. Optical absorption analyses of these glasses revealed an absorption band that shifted from 500 to 488 nm as the concentration of manganese oxide (MnO) increased from 0.1 wt.% to 0.4 wt.%, indicating that Mn2+ ions were gradually converted into Mn3+ ions. EPR spectra of these glasses were characterized by two signals due to Mn2+ and Mn3+ ions. Observations on these signal intensity variations revealed an increase in stability of the glass network with the increase of MnO concentration from 0.1 wt.% to 0.4 wt.%. Parameters, which describe the insulating characteristics, for example, dielectric constant, ε, dielectric loss, tan δ, and AC conductivity σac, were determined in relation to frequency (103 Hz to 105 Hz) and temperature (20°C to 400°C) and presented in the dielectric analysis of these glasses. |
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| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
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| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2ee84390cd31405485bd01eb2d00bd9b2025-02-03T07:23:59ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/62530696253069Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate GlassesB. Kassa0J. Leta Tesfaye1B. Bulcha2R. Kiran3T. Deepak4Dayanand Lal5S. Venkatesh6R. Krishnaraj7Physics Department, College of Natural and Computational Science, Dambi Dollo University, Dembi Dolo, EthiopiaPhysics Department, College of Natural and Computational Science, Dambi Dollo University, Dembi Dolo, EthiopiaPhysics Department, College of Natural and Computational Science, Dambi Dollo University, Dembi Dolo, EthiopiaElectrical and Computer Engineering, Dambi Dollo University, Dembi Dolo, EthiopiaDepartment of Accounting and Finance, Dambi Dollo University, Dembi Dolo, EthiopiaDepartment of Computer Science and Engineering, GITAM University, Bangalore, IndiaMechanical Engineering, National Institute of Technology, Tiruchirappalli, IndiaCentre for Excellence,Indigenous Knowledge,Innovative Technology Transfer and Entrepreneurship, Dambi Dollo University, Dembi Dolo, EthiopiaThe melt-quenching technique was used to produce 39CdO–10Al2O3-(51-x) P2O5: xMnO glasses (x = 0, 0.1, 0.2, 0.3, and 0.4 wt.%). Various stability factors were calculated and presented from DTA analysis. The stability of the glass network appears to increase with the increase of MnO concentration, according to the findings. IR spectral analysis of these glasses exhibited several symmetrical and asymmetrical bands due to phosphate groups. The observed change in these band intensities with the rise in MnO concentrations, ranging from 0.1 wt.% to 0.4 wt.%, shows an increase in the stability of the glass network. Optical absorption analyses of these glasses revealed an absorption band that shifted from 500 to 488 nm as the concentration of manganese oxide (MnO) increased from 0.1 wt.% to 0.4 wt.%, indicating that Mn2+ ions were gradually converted into Mn3+ ions. EPR spectra of these glasses were characterized by two signals due to Mn2+ and Mn3+ ions. Observations on these signal intensity variations revealed an increase in stability of the glass network with the increase of MnO concentration from 0.1 wt.% to 0.4 wt.%. Parameters, which describe the insulating characteristics, for example, dielectric constant, ε, dielectric loss, tan δ, and AC conductivity σac, were determined in relation to frequency (103 Hz to 105 Hz) and temperature (20°C to 400°C) and presented in the dielectric analysis of these glasses.http://dx.doi.org/10.1155/2021/6253069 |
| spellingShingle | B. Kassa J. Leta Tesfaye B. Bulcha R. Kiran T. Deepak Dayanand Lal S. Venkatesh R. Krishnaraj Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses Advances in Materials Science and Engineering |
| title | Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses |
| title_full | Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses |
| title_fullStr | Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses |
| title_full_unstemmed | Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses |
| title_short | Effect of Manganese Ions on Spectroscopic and Insulating Properties of Aluminophosphate Glasses |
| title_sort | effect of manganese ions on spectroscopic and insulating properties of aluminophosphate glasses |
| url | http://dx.doi.org/10.1155/2021/6253069 |
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