Andrea Labouriau, Loren Espada-Castillo, John R. Stockdale, Adam Pacheco, Shelbie A. Legett, Steve Simmonds, Clinton Shonrock, Santosh Adhikari
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引用次数: 0
Abstract
This study examines the stability of thermoplastics when submitted to high neutron and electron beam fluxes. Two thermoplastics were investigated, ultra-high molecular weight polyethylene (UHMWPE) containing up to 40 wt % isotopically enriched boron-10, and 3D printed acrylonitrile butadiene styrene (ABS) containing 60 wt % tungsten. FT-IR of exposed borated-UHMWPE showed small changes to its chemical structure due to oxidative degradation. Whereas thermal gravimetric analysis (TGA) indicated that about 15 wt% of tungsten was removed from the surface of 3D printed W-ABS that was directly facing the electron beam. This effect is due to the rapid energy deposition on the metal causing ablation. This study demonstrates that these two thermoplastics are not only useful in multiple industrial applications, but are also fairly resilient to extreme radiation environments.
期刊介绍：
Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing.
The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.
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