Please use this identifier to cite or link to this item:
Title: Additive Manufacturing of Three-Phase Syntactic Foams Containing Glass Microballoons and Air Pores
Authors: Singh, A.K.
Deptula, A.J.
Anawal, R.
Doddamani, M.
Gupta, N.
Issue Date: 2019
Citation: JOM, 2019, Vol.71, 4, pp.1520-1527
Abstract: High-density polyethylene and its syntactic foams reinforced with 20 vol.% and 40 vol.% glass microballoons were 3D printed using the fused filament fabrication method and studied for their compressive response. The three-phase microstructure of syntactic foams fabricated in this work also contained about 10 vol.% matrix porosity for obtaining light weight for buoyancy applications. Filaments for 3D printing were developed using a single screw filament extruder and printed on a commercial 3D printer using settings optimized in this work. Three-dimensional printed blanks were machined to obtain specimens that were tested at 10 ?4 s ?1 , 10 ?3 s ?1 , 10 ?2 s ?1 and 1 s ?1 strain rates. The compression results were compared with those of compression-molded (CM) specimens of the same materials. It was observed that the syntactic foam had a three-phase microstructure: matrix, microballoons and air voids. The air voids made the resulting foam lighter than the CM specimen. The moduli of the 3D-printed specimen were higher than those of the CM specimens at all strain rates. Yield strength was observed to be higher for CM samples than 3D-printed ones. 2019, The Minerals, Metals & Materials Society.
URI: 10.1007/s11837-019-03355-5
Appears in Collections:1. Journal Articles

Files in This Item:
File Description SizeFormat 
29 Additive Manufacturing.pdf5.74 MBAdobe PDFThumbnail

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.