The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses
A new glass system (50−x)P<sub>2</sub>O<sub>5</sub>–20B<sub>2</sub>O<sub>3</sub>–5Al<sub>2</sub>O<sub>3</sub>–25Na<sub>2</sub>O–xCoO was manufactured using a standard melt quenching procedure, where 1≤ x ≤ 12 mol%. T...
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2021
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oai:doaj.org-article:c085f7ead3f84c7eac088428f4caa37b2021-11-11T18:09:26ZThe Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses10.3390/ma142166321996-1944https://doaj.org/article/c085f7ead3f84c7eac088428f4caa37b2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6632https://doaj.org/toc/1996-1944A new glass system (50−x)P<sub>2</sub>O<sub>5</sub>–20B<sub>2</sub>O<sub>3</sub>–5Al<sub>2</sub>O<sub>3</sub>–25Na<sub>2</sub>O–xCoO was manufactured using a standard melt quenching procedure, where 1≤ x ≤ 12 mol%. The characteristics of boro-phosphate-glasses containing CoO have been studied. The effect of CoO on the radiation-protective properties of glasses was established. The density of the prepared glasses as a function of CoO increased. XRD was used to check the vitreous structure of samples. Fourier-transform infrared (FTIR) spectroscopy was used to study the structure of each sample. FTIR demonstrated that connections grew as CoO/P<sub>2</sub>O<sub>5</sub> levels increased, and the FTIR spectra shifted to higher wavenumbers. The increment of CoO converts non-bridging oxygens associated with phosphate structural units into bridging oxygens. This process increases the concentration of BO<sub>4</sub> structural units and creates new, strong and stable bonds B–O–P, i.e., there is polymerization of the boro-phosphate glass network. With an increase in the ratio of CoO/P<sub>2</sub>O<sub>5</sub> in the produced samples, ultrasonic velocities and elastic moduli were observed to increase. The coefficients of linear and mass attenuation, the transmittance of photons in relation to the photon energy, the efficiency of radiation protection in relation to the photon energy, and the thickness of the absorber were modeled using these two methods (experimental and theoretical). From the obtained values, it can be concluded that the 12Co sample containing 12 mol% will play the most influential role in radiation protection. An increase in the content of cobalt-I oxide led to a significant increase in the linear and mass attenuation coefficient values, which directly contributes to the development of the radiation-protective properties of glass.Ahmed M. A. MostafaMohamed A. M. UosifZiyad A. AlrowailiReda ElsamanAhmed A. ShowahyYasser B. SaddeekShams A. M. IssaAntoaneta EneHesham M. H. ZakalyMDPI AGarticlepolymerization of the boro-phosphate glass networkCoO/P<sub>2</sub>O<sub>5</sub>radiation protectionTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6632, p 6632 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
polymerization of the boro-phosphate glass network CoO/P<sub>2</sub>O<sub>5</sub> radiation protection Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
| spellingShingle |
polymerization of the boro-phosphate glass network CoO/P<sub>2</sub>O<sub>5</sub> radiation protection Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Ahmed M. A. Mostafa Mohamed A. M. Uosif Ziyad A. Alrowaili Reda Elsaman Ahmed A. Showahy Yasser B. Saddeek Shams A. M. Issa Antoaneta Ene Hesham M. H. Zakaly The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses |
| description |
A new glass system (50−x)P<sub>2</sub>O<sub>5</sub>–20B<sub>2</sub>O<sub>3</sub>–5Al<sub>2</sub>O<sub>3</sub>–25Na<sub>2</sub>O–xCoO was manufactured using a standard melt quenching procedure, where 1≤ x ≤ 12 mol%. The characteristics of boro-phosphate-glasses containing CoO have been studied. The effect of CoO on the radiation-protective properties of glasses was established. The density of the prepared glasses as a function of CoO increased. XRD was used to check the vitreous structure of samples. Fourier-transform infrared (FTIR) spectroscopy was used to study the structure of each sample. FTIR demonstrated that connections grew as CoO/P<sub>2</sub>O<sub>5</sub> levels increased, and the FTIR spectra shifted to higher wavenumbers. The increment of CoO converts non-bridging oxygens associated with phosphate structural units into bridging oxygens. This process increases the concentration of BO<sub>4</sub> structural units and creates new, strong and stable bonds B–O–P, i.e., there is polymerization of the boro-phosphate glass network. With an increase in the ratio of CoO/P<sub>2</sub>O<sub>5</sub> in the produced samples, ultrasonic velocities and elastic moduli were observed to increase. The coefficients of linear and mass attenuation, the transmittance of photons in relation to the photon energy, the efficiency of radiation protection in relation to the photon energy, and the thickness of the absorber were modeled using these two methods (experimental and theoretical). From the obtained values, it can be concluded that the 12Co sample containing 12 mol% will play the most influential role in radiation protection. An increase in the content of cobalt-I oxide led to a significant increase in the linear and mass attenuation coefficient values, which directly contributes to the development of the radiation-protective properties of glass. |
| format |
article |
| author |
Ahmed M. A. Mostafa Mohamed A. M. Uosif Ziyad A. Alrowaili Reda Elsaman Ahmed A. Showahy Yasser B. Saddeek Shams A. M. Issa Antoaneta Ene Hesham M. H. Zakaly |
| author_facet |
Ahmed M. A. Mostafa Mohamed A. M. Uosif Ziyad A. Alrowaili Reda Elsaman Ahmed A. Showahy Yasser B. Saddeek Shams A. M. Issa Antoaneta Ene Hesham M. H. Zakaly |
| author_sort |
Ahmed M. A. Mostafa |
| title |
The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses |
| title_short |
The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses |
| title_full |
The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses |
| title_fullStr |
The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses |
| title_full_unstemmed |
The Influence of CoO/P<sub>2</sub>O<sub>5</sub> Substitutions on the Structural, Mechanical, and Radiation Shielding of Boro-Phosphate Glasses |
| title_sort |
influence of coo/p<sub>2</sub>o<sub>5</sub> substitutions on the structural, mechanical, and radiation shielding of boro-phosphate glasses |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/c085f7ead3f84c7eac088428f4caa37b |
| work_keys_str_mv |
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