Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3
This study investigates the characteristics of lanthanum (La)-doped lead titanate (PbLaxTi(1-3x/4)O3 where, x = 0.0, 0.02, 0.04, 0.06, 0.08, and 0.1), a type of perovskite ceramic. It specifically focuses on analyzing its structure, vibrational properties, and efficacy in shielding against radiation...
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my.uniten.dspace-364942025-03-03T15:42:42Z Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 Almousa N. Issa S.A.M. Salem M.M. Darwish M.A. Serag E.N. Nazrin S.N. Zakaly H.M.H. 57189498135 55336154700 57223252113 57203819326 58327533300 57201365934 57196235532 Crystal symmetry Crystallite size Doping (additives) Fourier transform infrared spectroscopy High resolution transmission electron microscopy Lanthanum compounds Lead titanate Radiation shielding Strontium titanates X ray diffraction Ceramic Improved structures Lanthana doping Lead titanates Mean-free path Perovskite ceramics Shielding effectiveness Tartaric method Vibrational behavior X- ray diffractions Perovskite This study investigates the characteristics of lanthanum (La)-doped lead titanate (PbLaxTi(1-3x/4)O3 where, x = 0.0, 0.02, 0.04, 0.06, 0.08, and 0.1), a type of perovskite ceramic. It specifically focuses on analyzing its structure, vibrational properties, and efficacy in shielding against radiation. The prepared samples are investigated by X-ray diffraction (XRD), which clarified that the small doping of La (x � 0.06) produced the required phase, and increasing the La doping (x > 0.06) produced nonrequired phases (secondary phase). Also, increasing the La doping converted the crystal symmetry from tetragonal to cubic, which was confirmed by the tetragonality raio (c/a) calculations. Also, the samples are investigated by Fourier transform infrared (FTIR) spectroscopy to confirm the XRD results. Transmission electron microscopy (TEM) examination clarified that the prepared samples were in the nanoscale range with a maximum crystallite size value of around 70 nm. In addition, the shielding effectiveness of all the prepared samples was theoretically evaluated using the Phy-X/PDS program by considering characteristics such as the linear attenuation coefficient (GLAC), mean free path (GMFP), transmission factor (TF), and radiation protection efficiency (RPE). Increasing the La concentration increases the theoretical density to 4.98 gm/cm3 at x = 0.1, leading to low TF and GMFP values and high GLAC values. This produces samples with high attenuation to radiation and high shielding effectiveness. ? 2024 Elsevier B.V. Final 2025-03-03T07:42:42Z 2025-03-03T07:42:42Z 2024 Article 10.1016/j.optmat.2024.115543 2-s2.0-85193827324 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85193827324&doi=10.1016%2fj.optmat.2024.115543&partnerID=40&md5=193a5917d2571357b55eff002310cc9c https://irepository.uniten.edu.my/handle/123456789/36494 152 115543 Elsevier B.V. Scopus |
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Crystal symmetry Crystallite size Doping (additives) Fourier transform infrared spectroscopy High resolution transmission electron microscopy Lanthanum compounds Lead titanate Radiation shielding Strontium titanates X ray diffraction Ceramic Improved structures Lanthana doping Lead titanates Mean-free path Perovskite ceramics Shielding effectiveness Tartaric method Vibrational behavior X- ray diffractions Perovskite |
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Crystal symmetry Crystallite size Doping (additives) Fourier transform infrared spectroscopy High resolution transmission electron microscopy Lanthanum compounds Lead titanate Radiation shielding Strontium titanates X ray diffraction Ceramic Improved structures Lanthana doping Lead titanates Mean-free path Perovskite ceramics Shielding effectiveness Tartaric method Vibrational behavior X- ray diffractions Perovskite Almousa N. Issa S.A.M. Salem M.M. Darwish M.A. Serag E.N. Nazrin S.N. Zakaly H.M.H. Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 |
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This study investigates the characteristics of lanthanum (La)-doped lead titanate (PbLaxTi(1-3x/4)O3 where, x = 0.0, 0.02, 0.04, 0.06, 0.08, and 0.1), a type of perovskite ceramic. It specifically focuses on analyzing its structure, vibrational properties, and efficacy in shielding against radiation. The prepared samples are investigated by X-ray diffraction (XRD), which clarified that the small doping of La (x � 0.06) produced the required phase, and increasing the La doping (x > 0.06) produced nonrequired phases (secondary phase). Also, increasing the La doping converted the crystal symmetry from tetragonal to cubic, which was confirmed by the tetragonality raio (c/a) calculations. Also, the samples are investigated by Fourier transform infrared (FTIR) spectroscopy to confirm the XRD results. Transmission electron microscopy (TEM) examination clarified that the prepared samples were in the nanoscale range with a maximum crystallite size value of around 70 nm. In addition, the shielding effectiveness of all the prepared samples was theoretically evaluated using the Phy-X/PDS program by considering characteristics such as the linear attenuation coefficient (GLAC), mean free path (GMFP), transmission factor (TF), and radiation protection efficiency (RPE). Increasing the La concentration increases the theoretical density to 4.98 gm/cm3 at x = 0.1, leading to low TF and GMFP values and high GLAC values. This produces samples with high attenuation to radiation and high shielding effectiveness. ? 2024 Elsevier B.V. |
| author2 |
57189498135 |
| author_facet |
57189498135 Almousa N. Issa S.A.M. Salem M.M. Darwish M.A. Serag E.N. Nazrin S.N. Zakaly H.M.H. |
| format |
Article |
| author |
Almousa N. Issa S.A.M. Salem M.M. Darwish M.A. Serag E.N. Nazrin S.N. Zakaly H.M.H. |
| author_sort |
Almousa N. |
| title |
Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 |
| title_short |
Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 |
| title_full |
Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 |
| title_fullStr |
Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 |
| title_full_unstemmed |
Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3 |
| title_sort |
tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: the role of lanthanum in pbtio3 |
| publisher |
Elsevier B.V. |
| publishDate |
2025 |
| _version_ |
1825816274386550784 |
| score |
13.244413 |