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Structural, thermal characteristics, and radiation shielding properties of FeWO4 nanoparticles doped PVB films.

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Title: Structural, thermal characteristics, and radiation shielding properties of FeWO4 nanoparticles doped PVB films.
Authors: Alruwaili, Amani1 (AUTHOR), Alziyadi, Mohammed O.2 (AUTHOR), Alkabsh, Asma3 (AUTHOR), Alayed, B.4 (AUTHOR), Shalaby, M. S.5 (AUTHOR) phy_m_shalaby@yahoo.com
Source: Journal of Materials Science: Materials in Electronics. Jan2026, Vol. 37 Issue 3, p1-16. 16p.
Abstract: This study presents transparent, flexible, lead-free polyvinyl butyral (PVB) films that utilize FeWO4 nanoparticles to substantially enhance gamma-photon attenuation properties and thermal stability, thereby facilitating the development of lightweight shielding materials. Herein, PVB films doped with FeWO4 (0%, 1%, 2%, and 3 wt.%) were synthesized via the solution casting technique. XRD demonstrated that FeWO4 NPs possess a monoclinic primitive structure with a crystallite size of 47 nm. EDX and SEM were used to evaluate the morphology and elemental composition of the FeWO4 NPs. Thermogravimetric analysis (TGA) revealed that incorporating FeWO4 markedly improved the thermal stability of PVB films. The linear attenuation coefficient for gamma rays, ranging from 0.02 MeV to 15 MeV, was simulated using the MCNP6 code. The results indicate that the mass attenuation coefficient (MAC) rises progressively with increasing FeWO4 content, particularly at low to intermediate gamma energies, accompanied by a decrease in both the half-value layer (HVL) and the mean free path (MFP) relative to pure PVB. MCNP6 simulation data align with the obtained Phy-X/PSD calculations and XCOM databases, indicating strong cross-validation among methods. The effective electron number, Neff, increases with FeWO4 content at photon energies where photoelectric and Compton processes dominate. The Fast neutron removal cross section (FNRCS) values of PVB/FeWO4 nanocomposites increased by incorporating FeWO4 NPs. PVB/FeWO4 nanocomposites are proposed as an alternative to ecologically friendly and lead-free materials for radiation shielding. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature 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.)
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  Data: Structural, thermal characteristics, and radiation shielding properties of FeWO<subscript>4</subscript> nanoparticles doped PVB films.
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  Data: <searchLink fieldCode="AR" term="%22Alruwaili%2C+Amani%22">Alruwaili, Amani</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alziyadi%2C+Mohammed+O%2E%22">Alziyadi, Mohammed O.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alkabsh%2C+Asma%22">Alkabsh, Asma</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alayed%2C+B%2E%22">Alayed, B.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shalaby%2C+M%2E+S%2E%22">Shalaby, M. S.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> phy_m_shalaby@yahoo.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Jan2026, Vol. 37 Issue 3, p1-16. 16p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study presents transparent, flexible, lead-free polyvinyl butyral (PVB) films that utilize FeWO4 nanoparticles to substantially enhance gamma-photon attenuation properties and thermal stability, thereby facilitating the development of lightweight shielding materials. Herein, PVB films doped with FeWO4 (0%, 1%, 2%, and 3 wt.%) were synthesized via the solution casting technique. XRD demonstrated that FeWO4 NPs possess a monoclinic primitive structure with a crystallite size of 47 nm. EDX and SEM were used to evaluate the morphology and elemental composition of the FeWO4 NPs. Thermogravimetric analysis (TGA) revealed that incorporating FeWO4 markedly improved the thermal stability of PVB films. The linear attenuation coefficient for gamma rays, ranging from 0.02 MeV to 15 MeV, was simulated using the MCNP6 code. The results indicate that the mass attenuation coefficient (MAC) rises progressively with increasing FeWO4 content, particularly at low to intermediate gamma energies, accompanied by a decrease in both the half-value layer (HVL) and the mean free path (MFP) relative to pure PVB. MCNP6 simulation data align with the obtained Phy-X/PSD calculations and XCOM databases, indicating strong cross-validation among methods. The effective electron number, Neff, increases with FeWO4 content at photon energies where photoelectric and Compton processes dominate. The Fast neutron removal cross section (FNRCS) values of PVB/FeWO4 nanocomposites increased by incorporating FeWO4 NPs. PVB/FeWO4 nanocomposites are proposed as an alternative to ecologically friendly and lead-free materials for radiation shielding. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature 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.)
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              Text: Jan2026
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