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dc.contributor.authorSingh, A.K.-
dc.contributor.authorPatil, B.-
dc.contributor.authorHoffmann, N.-
dc.contributor.authorSaltonstall, B.-
dc.contributor.authorDoddamani, M.-
dc.contributor.authorGupta, N.-
dc.identifier.citationJOM, 2018, Vol.70, 3, pp.303-309en_US
dc.description.abstractThis work focuses on developing filaments of high-density polyethylene (HDPE) and their hollow particle-filled syntactic foams for commercial three-dimensional (3D) printers based on fused filament fabrication technology. Hollow fly-ash cenospheres were blended by 40 wt.% in a HDPE matrix to produce syntactic foam (HDPE40) filaments. Further, the recycling potential was studied by pelletizing the filaments again to extrude twice (2 ) and three times (3 ). The filaments were tensile tested at 10?4 s?1, 10?3 s?1, and 10?2 s?1 strain rates. HDPE40 filaments show an increasing trend in modulus and strength with the strain rate. Higher density and modulus were noticed for 2 filaments compared to 1 filaments because of the crushing of some cenospheres in the extrusion cycle. However, 2 and 3 filament densities are nearly the same, showing potential for recycling them. The filaments show better properties than the same materials processed by conventional injection molding. Micro-CT scans show a uniform dispersion of cenospheres in all filaments. 2018, The Minerals, Metals & Materials Society.en_US
dc.titleAdditive Manufacturing of Syntactic Foams: Part 1: Development, Properties, and Recycling Potential of Filamentsen_US
Appears in Collections:1. Journal Articles

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