Metallization of carbon fibre reinforced polymers by cold spray

From National Research Council Canada

Download	View accepted manuscript: Metallization of carbon fibre reinforced polymers by cold spray (PDF, 1 MB)
DOI	Resolve DOI: https://doi.org/10.1016/j.surfcoat.2017.01.083
Author	Search for: Che, Hanqing; Search for: Vo, Phuong¹ ; Search for: Yue, Stephen
Name affiliation	National Research Council Canada. Automotive and Surface Transportation
Format	Text
Type	Article
Journal title	Surface and Coatings Technology
ISSN	02578972 1879-3347
Volume	313
Pages	236–247
Subject	metallization of polymers; cold spray; carbon fibre reinforced polymer
Abstract	Carbon fibre reinforced polymer (CFRP) is a very competitive alternative to aluminum for aircraft structures for lightweighting purposes, but this leaves vulnerability against lightning strike. Cold spray is one coating approach to metallize the polymers, making them lightning strike proof. The aim of this work is to investigate the viability of metallizing aircraft quality CFRPs by cold spray. Copper, aluminum and tin were cold sprayed onto the CFRPs with both a high-pressure and a low-pressure cold spray system. A number of different combinations of the gas pressure and gas preheating temperature were used for the cold spray process. Erosion was found to be the key obstacle to developing continuous coatings on the CFRP substrates with the high-pressure system. On the other hand, continuous tin coatings were successfully obtained on CFRP with the low-pressure system, due to the very soft tin coating the substrate through a “crack filling” mechanism. Based on the results, it was proposed that when cold spraying metals on CFRP, it is necessary to differentiate between the development of the first layer and the build-up of subsequent layers. Last but not least, the effect of particle velocity and gas temperature was discussed and the deposition window of tin on CFRP was developed.
Publication date	2017-01-24
Terms of use	Permission is granted to temporarily download one copy of the materials for personal, noncommercial transitory viewing only. NRC Publications Archive - Copyright and terms of use
Language	English
Peer reviewed	Yes
NPARC number	23001441
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Record identifier	bc6cab07-5075-4c6e-9fee-32e32812a8cb
Record created	2017-02-08
Record modified	2019-03-08

Date modified:: 2019-03-26

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