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

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dc.authorscopusidHesham M.H. Zakaly / 57196235532
dc.authorwosidHesham M.H. Zakaly / E-8136-2016
dc.contributor.authorAlmousa, N.
dc.contributor.authorIssa, Shams A. M.
dc.contributor.authorSalem, M. M.
dc.contributor.authorDarwish, Moustafa A.
dc.contributor.authorSerag, Eman N.
dc.contributor.authorNazrin, S. N.
dc.contributor.authorZakaly, Hesham M. H.
dc.date.accessioned2025-04-18T09:08:58Z
dc.date.available2025-04-18T09:08:58Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Bilgisayar Mühendisliği Bölümü
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 (G(LAC)), mean free path (G(MFP)), 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 G(MFP) values and high G(LAC) values. This produces samples with high attenuation to radiation and high shielding effectiveness.
dc.description.sponsorshipPrincess Nourah bint Abdulrahman University
dc.identifier.citationAlmousa, N., Issa, S. A., Salem, M. M., Darwish, M. A., Serag, E. N., Nazrin, S. N., & Zakaly, H. M. (2024). Tailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3. Optical Materials, 152, 115543.
dc.identifier.doi10.1016/j.optmat.2024.115543
dc.identifier.endpage9
dc.identifier.issn0925-3467
dc.identifier.issn1873-1252
dc.identifier.scopus2-s2.0-85193827324
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.1016/j.optmat.2024.115543
dc.identifier.urihttps://hdl.handle.net/20.500.12713/6703
dc.identifier.volume152
dc.identifier.wosWOS:001247952300001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorZakaly, Hesham M.H.
dc.institutionauthoridHesham M.H. Zakaly / 0000-0002-7645-9964
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofOptical Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectPerovskite
dc.subjectCeramics
dc.subjectTartaric Method
dc.subjectLead Titanate
dc.subjectRadiation Shielding
dc.titleTailoring perovskite ceramics for improved structure, vibrational behaviors and radiation protection: The role of lanthanum in PbTiO3
dc.typeArticle

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