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Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3

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dc.citedby4
dc.contributor.authorAlmousa N.en_US
dc.contributor.authorIssa S.A.M.en_US
dc.contributor.authorSalem M.M.en_US
dc.contributor.authorDarwish M.A.en_US
dc.contributor.authorSerag E.N.en_US
dc.contributor.authorNazrin S.N.en_US
dc.contributor.authorZakaly H.M.H.en_US
dc.contributor.authorid57189498135en_US
dc.contributor.authorid55336154700en_US
dc.contributor.authorid57223252113en_US
dc.contributor.authorid57203819326en_US
dc.contributor.authorid58327533300en_US
dc.contributor.authorid57201365934en_US
dc.contributor.authorid57196235532en_US
dc.date.accessioned2025-03-03T07:42:42Z
dc.date.available2025-03-03T07:42:42Z
dc.date.issued2024
dc.description.abstractThis 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.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo115543
dc.identifier.doi10.1016/j.optmat.2024.115543
dc.identifier.scopus2-s2.0-85193827324
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85193827324&doi=10.1016%2fj.optmat.2024.115543&partnerID=40&md5=193a5917d2571357b55eff002310cc9c
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36494
dc.identifier.volume152
dc.publisherElsevier B.V.en_US
dc.sourceScopus
dc.sourcetitleOptical Materials
dc.subjectCrystal symmetry
dc.subjectCrystallite size
dc.subjectDoping (additives)
dc.subjectFourier transform infrared spectroscopy
dc.subjectHigh resolution transmission electron microscopy
dc.subjectLanthanum compounds
dc.subjectLead titanate
dc.subjectRadiation shielding
dc.subjectStrontium titanates
dc.subjectX ray diffraction
dc.subjectCeramic
dc.subjectImproved structures
dc.subjectLanthana doping
dc.subjectLead titanates
dc.subjectMean-free path
dc.subjectPerovskite ceramics
dc.subjectShielding effectiveness
dc.subjectTartaric method
dc.subjectVibrational behavior
dc.subjectX- ray diffractions
dc.subjectPerovskite
dc.titleTailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3en_US
dc.typeArticleen_US
dspace.entity.typePublication
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