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Polybenzimidazole (PBI) film coating for improved hypervelocity impact energy absorption for space applications

Cited 16 time in Web of Science Cited 18 time in Scopus
Authors

Kumar, Sarath Kumar Sathish; Jurado-Manriquez, Edwin Antonio; Kim, YunHo; Choi, Chunghyeon; Baluch, Abrar H.; Kim, Chun-Gon

Issue Date
2018-03
Publisher
ELSEVIER SCI LTD
Citation
COMPOSITE STRUCTURES, Vol.188, pp.72-77
Abstract
This paper deals with how the use of Polybenzimidazole (PBI) as a film coating over conventional composite designs could help improve the hypervelocity impact ballistic performance of the system. PBI coated composite samples were studied for resistance to Low Earth Orbit environment conditions like high vacuum, thermal cycling, Atomic Oxygen and Ultraviolet Radiation in a simulation facility. It was observed that the PBI coated composites reduced mass loss and surface erosion compared to the non-coated samples after LEO exposure. Hypervelocity impact experiments were conducted on the PBI coated composites for impact velocities between 2.5 to 3 km/s. The experiments showed that the PBI film coating significantly increased the energy absorption of the composite system. The effect of thickness increase as a result of the film application on energy absorption was also found to be negligible confirming the effectiveness of PBI coating as a hypervelocity shield.
ISSN
0263-8223
URI
https://hdl.handle.net/10371/203258
DOI
https://doi.org/10.1016/j.compstruct.2017.12.052
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Related Researcher

  • College of Engineering
  • Department of Aerospace Engineering
Research Area Smart composites, Space environments

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