View in EDS

Rare earth Co-Doped tellurite glass ceramics: Potential use in optical and radiation shielding applications.

Saved in:
Bibliographic Details
Title: Rare earth Co-Doped tellurite glass ceramics: Potential use in optical and radiation shielding applications.
Authors: Al-Hadeethi, Y.1 (AUTHOR) yalhadeethi@kau.edu.sa, Ahmed, Moustafa1 (AUTHOR), Al-Heniti, Saleh H.1 (AUTHOR), Sayyed, M.I.2,3 (AUTHOR), Rammah, Y.S.4 (AUTHOR)
Source: Ceramics International. Aug2020:Part B, Vol. 46 Issue 11, p19198-19208. 11p.
Subjects: Tellurites, Rare earth oxides, Radiation shielding, Samarium, Attenuation coefficients, Mass attenuation coefficients, Geochemistry
Abstract: Six specimens of tellurite glass doped with rare earth with a nominal chemical composition 65TeO 2 –25Na 2 O-(10-x)NdCl 3 -xSm 2 O 3 : 0.0 ≤ x ≤ 2.5 mol% were fabricated. The fabrication process was conventional melt quenching. The glasses were coded as TNNS0.0 to TNNS2.5 corresponding to their x value. The glasses' non-crystalline properties were measured using X-ray diffraction. The glasses' UV–Vis data in a 300–1100 nm wavelength were calculated. Using absorption measurements, the optical energy band gap (E Optical) was assessed. The index of refraction (n), polarizability (αmolar), metallization criterion (Mcriterion), molar refractivity (Rmolar), static and optical dielectric constants (εstatic and εoptical), reflection loss (Rloss), and optical transmission (Toptical) were calculated. Results revealed that the indirect optical energy band gap (E I n d i r e c t O p t i c a l ) changed from 2.94 to 2.80 eV, while the direct one (E D i r e c t O p t i c a l ) changed from 3.06 to 3.00 eV for TNNS0.0 to TNNS2.5 glasses. Refractive index varied between 2.413 and 2.453. The static dielectric constant changed from 5.824 to 6.017. To inspect the glasses' radiation shielding characteristics, we simulated their mass attenuation coefficients (MAC) between 0.284 and 1.33 MeV using Geant4 code simulation and Phy-X/PSD software. There was good agreement between the Geant4 and Phy-X/PSD results. The linear attenuation coefficient (μ) values decreased exponentially as the energy increased, ranging from 0.229 to 0.697 cm−1 for TNNS0.0 and 0.256–0.787 cm−1 for TNNS2.5. The addition of samarium oxide (Sm 2 O 3) increased the μ values at all of the energies investigated. The effective atomic number (Z eff) results demonstrated higher photon interactions, possibility due to the increasing Sm 2 O 3 content. The minimum half value layer (HVL) occurred at 0.284 MeV and was 0.881 cm for TNNS2.5and 0.994 cm for TNNS0.0. The tenth value layer (TVL) decreased as the Sm 2 O 3 concentrations increased and increased as the energy increased. TNNS2.5 had the lowest TVL of 2.927 cm at 0.284 MeV and 6.022 cm at 0.662 MeV. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 143558153
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Rare earth Co-Doped tellurite glass ceramics: Potential use in optical and radiation shielding applications.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Al-Hadeethi%2C+Y%2E%22">Al-Hadeethi, Y.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yalhadeethi@kau.edu.sa</i><br /><searchLink fieldCode="AR" term="%22Ahmed%2C+Moustafa%22">Ahmed, Moustafa</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Al-Heniti%2C+Saleh+H%2E%22">Al-Heniti, Saleh H.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sayyed%2C+M%2EI%2E%22">Sayyed, M.I.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rammah%2C+Y%2ES%2E%22">Rammah, Y.S.</searchLink><relatesTo>4</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Aug2020:Part B, Vol. 46 Issue 11, p19198-19208. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Tellurites%22">Tellurites</searchLink><br /><searchLink fieldCode="DE" term="%22Rare+earth+oxides%22">Rare earth oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Radiation+shielding%22">Radiation shielding</searchLink><br /><searchLink fieldCode="DE" term="%22Samarium%22">Samarium</searchLink><br /><searchLink fieldCode="DE" term="%22Attenuation+coefficients%22">Attenuation coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+attenuation+coefficients%22">Mass attenuation coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Geochemistry%22">Geochemistry</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Six specimens of tellurite glass doped with rare earth with a nominal chemical composition 65TeO 2 –25Na 2 O-(10-x)NdCl 3 -xSm 2 O 3 : 0.0 ≤ x ≤ 2.5 mol% were fabricated. The fabrication process was conventional melt quenching. The glasses were coded as TNNS0.0 to TNNS2.5 corresponding to their x value. The glasses' non-crystalline properties were measured using X-ray diffraction. The glasses' UV–Vis data in a 300–1100 nm wavelength were calculated. Using absorption measurements, the optical energy band gap (E Optical) was assessed. The index of refraction (n), polarizability (αmolar), metallization criterion (Mcriterion), molar refractivity (Rmolar), static and optical dielectric constants (εstatic and εoptical), reflection loss (Rloss), and optical transmission (Toptical) were calculated. Results revealed that the indirect optical energy band gap (E I n d i r e c t O p t i c a l ) changed from 2.94 to 2.80 eV, while the direct one (E D i r e c t O p t i c a l ) changed from 3.06 to 3.00 eV for TNNS0.0 to TNNS2.5 glasses. Refractive index varied between 2.413 and 2.453. The static dielectric constant changed from 5.824 to 6.017. To inspect the glasses' radiation shielding characteristics, we simulated their mass attenuation coefficients (MAC) between 0.284 and 1.33 MeV using Geant4 code simulation and Phy-X/PSD software. There was good agreement between the Geant4 and Phy-X/PSD results. The linear attenuation coefficient (μ) values decreased exponentially as the energy increased, ranging from 0.229 to 0.697 cm−1 for TNNS0.0 and 0.256–0.787 cm−1 for TNNS2.5. The addition of samarium oxide (Sm 2 O 3) increased the μ values at all of the energies investigated. The effective atomic number (Z eff) results demonstrated higher photon interactions, possibility due to the increasing Sm 2 O 3 content. The minimum half value layer (HVL) occurred at 0.284 MeV and was 0.881 cm for TNNS2.5and 0.994 cm for TNNS0.0. The tenth value layer (TVL) decreased as the Sm 2 O 3 concentrations increased and increased as the energy increased. TNNS2.5 had the lowest TVL of 2.927 cm at 0.284 MeV and 6.022 cm at 0.662 MeV. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=143558153
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.ceramint.2020.04.257
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 19198
    Subjects:
      – SubjectFull: Tellurites
        Type: general
      – SubjectFull: Rare earth oxides
        Type: general
      – SubjectFull: Radiation shielding
        Type: general
      – SubjectFull: Samarium
        Type: general
      – SubjectFull: Attenuation coefficients
        Type: general
      – SubjectFull: Mass attenuation coefficients
        Type: general
      – SubjectFull: Geochemistry
        Type: general
    Titles:
      – TitleFull: Rare earth Co-Doped tellurite glass ceramics: Potential use in optical and radiation shielding applications.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Al-Hadeethi, Y.
      – PersonEntity:
          Name:
            NameFull: Ahmed, Moustafa
      – PersonEntity:
          Name:
            NameFull: Al-Heniti, Saleh H.
      – PersonEntity:
          Name:
            NameFull: Sayyed, M.I.
      – PersonEntity:
          Name:
            NameFull: Rammah, Y.S.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 05
              M: 08
              Text: Aug2020:Part B
              Type: published
              Y: 2020
          Identifiers:
            – Type: issn-print
              Value: 02728842
          Numbering:
            – Type: volume
              Value: 46
            – Type: issue
              Value: 11
          Titles:
            – TitleFull: Ceramics International
              Type: main
ResultId 1