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10.3390/ma12091468
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Article

Electron Irradiation Effects on Strength and Ductility of Polymer Foils Studied by Femtosecond Laser-Processed Micro-Tensile Specimens

by
Manuel J. Pfeifenberger
1,*,
Gabor Milassin
2,
Anton Hohenwarter
3,
Barbara Putz
1,
Christopher O. A. Semprimoschnig
2 and
Reinhard Pippan
1
1
Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, 8700 Leoben, Austria
2
ESA-ESTEC (TEC-QEE), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
3
Department of Materials Science, Chair of Materials Physics, University of Leoben, 8700 Leoben, Austria
*
Author to whom correspondence should be addressed.
Materials 2019, 12(9), 1468; https://doi.org/10.3390/ma12091468
Submission received: 11 April 2019 / Revised: 24 April 2019 / Accepted: 25 April 2019 / Published: 7 May 2019
(This article belongs to the Special Issue Laser Applications in Polymers)
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Abstract

The influence of irradiation on mechanical properties of polymer foils used in spacecraft applications has widely been studied via macroscopic tensile samples. An increase in the local resolution of this investigation can be achieved by reducing the sample’s dimensions. A femtosecond laser enables a fast fabrication of micro-samples with dimensions from tens of μ m to the mm range, with ideally no influence on the material. Tensile experiments using such micro-tensile samples were conducted on FEP, Upilex-S and PET foils. The influence of the laser processing on the polymer foils was evaluated. Additionally an investigation of degradation due to electron irradiation was performed. Furthermore an outlook to extend this technique to depth-resolved measurements by preparing samples from locally thinned foils is presented. The study demonstrates the feasibility of femtosecond laser processing for rapid fabrication of micro-samples, enabling insights into the effect of electron irradiation on local mechanical properties of polymers.
Keywords: micro tensile testing; ultrashort pulse laser ablation; electron beam irradiation; sample preparation; polymer foil; local mechanical properties micro tensile testing; ultrashort pulse laser ablation; electron beam irradiation; sample preparation; polymer foil; local mechanical properties
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MDPI and ACS Style

Pfeifenberger, M.J.; Milassin, G.; Hohenwarter, A.; Putz, B.; Semprimoschnig, C.O.A.; Pippan, R. Electron Irradiation Effects on Strength and Ductility of Polymer Foils Studied by Femtosecond Laser-Processed Micro-Tensile Specimens. Materials 2019, 12, 1468. https://doi.org/10.3390/ma12091468

AMA Style

Pfeifenberger MJ, Milassin G, Hohenwarter A, Putz B, Semprimoschnig COA, Pippan R. Electron Irradiation Effects on Strength and Ductility of Polymer Foils Studied by Femtosecond Laser-Processed Micro-Tensile Specimens. Materials. 2019; 12(9):1468. https://doi.org/10.3390/ma12091468

Chicago/Turabian Style

Pfeifenberger, Manuel J., Gabor Milassin, Anton Hohenwarter, Barbara Putz, Christopher O. A. Semprimoschnig, and Reinhard Pippan. 2019. "Electron Irradiation Effects on Strength and Ductility of Polymer Foils Studied by Femtosecond Laser-Processed Micro-Tensile Specimens" Materials 12, no. 9: 1468. https://doi.org/10.3390/ma12091468

APA Style

Pfeifenberger, M. J., Milassin, G., Hohenwarter, A., Putz, B., Semprimoschnig, C. O. A., & Pippan, R. (2019). Electron Irradiation Effects on Strength and Ductility of Polymer Foils Studied by Femtosecond Laser-Processed Micro-Tensile Specimens. Materials, 12(9), 1468. https://doi.org/10.3390/ma12091468

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