ArticleScientific reports2026
Optimization of linear attenuation coefficients and characterization of mechanical and thermal properties in silica ash-reinforced PDMS composites.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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- Erratum issued
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4 authors.
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Abstract
This investigation engineers multifunctional polydimethylsiloxane (PDMS) composites incorporating 0-50 wt% silica ash a valorized industrial byproduct as lightweight, sustainable gamma-ray shielding elastomers. Narrow-beam attenuation experiments spanning diagnostic-to-isotope energies (59.5-1332.5 keV) quantify a monotonic enhancement in linear attenuation coefficients (µ), escalating from 0.3011 cm⁻¹ (pure PDMS) to 0.3651 cm⁻¹ (50 wt% ash) at 59.5 keV, with concomitant reductions in half-value layer (HVL) from 2.30 cm to 1.90 cm. This stems from a paradigm shift in photon interaction physics: photoelectric dominance (< 100 keV) amplifies via elevated effective atomic number (Z
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