Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses
IR spectroscopy, density and ultrasonic velocity measurements have been carried out for aluminum lithium phosphate glasses with and without MoO3. The observed changes in the FTIR spectra of the glasses were related to the modifier/former role of molybdenum ions. The results revealed that the densi...
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Institute of Fundamental Technological Research Polish Academy of Sciences
2013-10-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/99 |
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| author | Yasser B. SADDEEK S. M. ABO-NAF |
| author_facet | Yasser B. SADDEEK S. M. ABO-NAF |
| author_sort | Yasser B. SADDEEK |
| collection | DOAJ |
| description | IR spectroscopy, density and ultrasonic velocity measurements have been carried out for aluminum
lithium phosphate glasses with and without MoO3. The observed changes in the FTIR spectra of the
glasses were related to the modifier/former role of molybdenum ions. The results revealed that the density
increases with increasing MoO3 content, which was attributed to the increase in the compactness and
packing of the glass network. The ultrasonic data were analyzed in terms of creation of new bonds of MoO3
attached to phosphate units. The new bonds increased the average crosslink density and the number of
network bonds per unit volume along with a strengthening of the different modes of vibrations which in
its turn increased the ultrasonic velocity, the rigidity and hence the elastic moduli of the glasses. |
| format | Article |
| id | doaj-art-4651bfb6cff2494ca3921c9edd228140 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-4651bfb6cff2494ca3921c9edd2281402025-08-20T03:50:48ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-10-01373Influence of MoO3 on the Structure of Lithium Aluminum Phosphate GlassesYasser B. SADDEEK0S. M. ABO-NAF1Physics Department, Faculty of Science, Al-Azhar UniversityGlass Research Department, National Research Centre (NRC)IR spectroscopy, density and ultrasonic velocity measurements have been carried out for aluminum lithium phosphate glasses with and without MoO3. The observed changes in the FTIR spectra of the glasses were related to the modifier/former role of molybdenum ions. The results revealed that the density increases with increasing MoO3 content, which was attributed to the increase in the compactness and packing of the glass network. The ultrasonic data were analyzed in terms of creation of new bonds of MoO3 attached to phosphate units. The new bonds increased the average crosslink density and the number of network bonds per unit volume along with a strengthening of the different modes of vibrations which in its turn increased the ultrasonic velocity, the rigidity and hence the elastic moduli of the glasses.https://acoustics.ippt.pan.pl/index.php/aa/article/view/99phosphate glassesIRdensityelastic properties |
| spellingShingle | Yasser B. SADDEEK S. M. ABO-NAF Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses Archives of Acoustics phosphate glasses IR density elastic properties |
| title | Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses |
| title_full | Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses |
| title_fullStr | Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses |
| title_full_unstemmed | Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses |
| title_short | Influence of MoO3 on the Structure of Lithium Aluminum Phosphate Glasses |
| title_sort | influence of moo3 on the structure of lithium aluminum phosphate glasses |
| topic | phosphate glasses IR density elastic properties |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/99 |
| work_keys_str_mv | AT yasserbsaddeek influenceofmoo3onthestructureoflithiumaluminumphosphateglasses AT smabonaf influenceofmoo3onthestructureoflithiumaluminumphosphateglasses |