Multifunctional metal matrix composites with embedded printed electrical materials fabricated by ultrasonic additive manufacturing

Journal article


Li, J, Monaghan, T, Nguyen, TT, Kay, RW, Friel, RJ and Harris, RA (2017). Multifunctional metal matrix composites with embedded printed electrical materials fabricated by ultrasonic additive manufacturing. Composites Part B: Engineering. 113, pp. 342-354.
AuthorsLi, J, Monaghan, T, Nguyen, TT, Kay, RW, Friel, RJ and Harris, RA
Abstract

This work proposes a new method for the fabrication of multifunctional Metal Matrix Composite (MMC) structures featuring embedded printed electrical materials through Ultrasonic Additive Manufacturing (UAM). Printed electrical circuitries combining conductive and insulating materials were directly embedded within the interlaminar region of UAM aluminium matrices to realise previously unachievable multifunctional composites. A specific surface flattening process was developed to eliminate the risk of short circuiting between the metal matrices and printed conductors, and simultaneously reduce the total thickness of the printed circuitry. This acted to improve the integrity of the UAM MMC's and their resultant mechanical strength. The functionality of embedded printed circuitries was examined via four-point probe measurement. DualBeam Scanning Electron Microscopy (SEM) and Focused Ion Beam (FIB) milling were used to investigate the microstructures of conductive materials to characterize the effect of UAM embedding energy whilst peel testing was used to quantify mechanical strength of MMC structures in combination with optical microscopy. Through this process, fully functioning MMC structures featuring embedded insulating and conductive materials were realised whilst still maintaining high peel resistances of ca. 70 N and linear weld densities of ca. 90%.

Year2017
JournalComposites Part B: Engineering
Journal citation113, pp. 342-354
PublisherLondon South Bank University
ISSN1359-8368
Digital Object Identifier (DOI)doi:10.1016/j.compositesb.2017.01.013
Publication dates
Print10 Jan 2017
Publication process dates
Deposited12 Dec 2017
Accepted08 Jan 2017
Accepted author manuscript
License
CC BY-NC-ND 4.0
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https://openresearch.lsbu.ac.uk/item/870xq

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