Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method
In the present study, nanocomposites with different ratios of NiO and Co3O4 (x = 0.3, 0.5, and 0.7) have been prepared via microwave oven and characterized using XRD. FLUKA code has been used to estimate the values of the mass attenuation coefficient (μm) for all samples. From the measurement, we fo...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
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Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/85942/ |
| _version_ | 1848860218230833152 |
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| author | Ali, Atif Mossad Issa, Shams A. M. Zakaly, Hesham M. H. Pyshkina, Mariia Somaily, H. H. Algarni, H. Rashad, M. Saif, M. H. A. A., Sidek Matori, K. A. M. Zaid, M. H. |
| author_facet | Ali, Atif Mossad Issa, Shams A. M. Zakaly, Hesham M. H. Pyshkina, Mariia Somaily, H. H. Algarni, H. Rashad, M. Saif, M. H. A. A., Sidek Matori, K. A. M. Zaid, M. H. |
| author_sort | Ali, Atif Mossad |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In the present study, nanocomposites with different ratios of NiO and Co3O4 (x = 0.3, 0.5, and 0.7) have been prepared via microwave oven and characterized using XRD. FLUKA code has been used to estimate the values of the mass attenuation coefficient (μm) for all samples. From the measurement, we found that when the thickness of the samples increases, the gamma transmission values decrease. Besides, the μm values increase as the Co3O4 content increase from 0.3 to 0.7%. At selected photon energy, the HVL, TVL, and MFP values decrease with increasing Co3O4 concentrations. At low energies (0.1–0.5 MeV), the linear decreasing trend in MAC values indication that photoelectric effect (PEA) (∝1/E3.5) dominance over this region. Afterward, at medium energy regions (0.5–1.33 MeV), the decrements in MAC values are insignificant as the Compton scattering (CS) (∝1/E) phenomenon dominates. As a conclusion, CoNi3 has superior effectiveness as a shielding material. |
| first_indexed | 2025-11-15T12:41:44Z |
| format | Article |
| id | upm-85942 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T12:41:44Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-859422023-10-31T06:39:39Z http://psasir.upm.edu.my/id/eprint/85942/ Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method Ali, Atif Mossad Issa, Shams A. M. Zakaly, Hesham M. H. Pyshkina, Mariia Somaily, H. H. Algarni, H. Rashad, M. Saif, M. H. A. A., Sidek Matori, K. A. M. Zaid, M. H. In the present study, nanocomposites with different ratios of NiO and Co3O4 (x = 0.3, 0.5, and 0.7) have been prepared via microwave oven and characterized using XRD. FLUKA code has been used to estimate the values of the mass attenuation coefficient (μm) for all samples. From the measurement, we found that when the thickness of the samples increases, the gamma transmission values decrease. Besides, the μm values increase as the Co3O4 content increase from 0.3 to 0.7%. At selected photon energy, the HVL, TVL, and MFP values decrease with increasing Co3O4 concentrations. At low energies (0.1–0.5 MeV), the linear decreasing trend in MAC values indication that photoelectric effect (PEA) (∝1/E3.5) dominance over this region. Afterward, at medium energy regions (0.5–1.33 MeV), the decrements in MAC values are insignificant as the Compton scattering (CS) (∝1/E) phenomenon dominates. As a conclusion, CoNi3 has superior effectiveness as a shielding material. Elsevier 2020 Article PeerReviewed Ali, Atif Mossad and Issa, Shams A. M. and Zakaly, Hesham M. H. and Pyshkina, Mariia and Somaily, H. H. and Algarni, H. and Rashad, M. and Saif, M. and H. A. A., Sidek and Matori, K. A. and M. Zaid, M. H. (2020) Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method. Results in Physics, 19. pp. 1-9. ISSN 2211-3797 https://www.sciencedirect.com/science/article/pii/S2211379720319446#! 10.1016/j.rinp.2020.103488 |
| spellingShingle | Ali, Atif Mossad Issa, Shams A. M. Zakaly, Hesham M. H. Pyshkina, Mariia Somaily, H. H. Algarni, H. Rashad, M. Saif, M. H. A. A., Sidek Matori, K. A. M. Zaid, M. H. Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method |
| title | Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method |
| title_full | Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method |
| title_fullStr | Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method |
| title_full_unstemmed | Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method |
| title_short | Structural and shielding properties of NiO/xCo3O4 nanocomposites synthesized by microwave irradiation method |
| title_sort | structural and shielding properties of nio/xco3o4 nanocomposites synthesized by microwave irradiation method |
| url | http://psasir.upm.edu.my/id/eprint/85942/ http://psasir.upm.edu.my/id/eprint/85942/ http://psasir.upm.edu.my/id/eprint/85942/ |