CVD nano-coating of carbon composites for space materials atomic oxygen shielding

• DOI: 10.1016/j.prostr.2017.04.047
• Publication Date: 2017-05-15T11:15:56Z
• Authors: A. Delfini; A. Vricella; R. Bueno Morles; R. Pastore; D. Micheli; F. Gugliermetti; M. Marchetti
• Keywords: Carbon fibers; Atomic oxygen

The present work analyzes the possibility to employ carbon nanostructures as a basic material prevent erosion effects of atomic oxygen suffered by fiber reinforced polymeric used in low earth orbit space environment. application thin protecting coatings base materials is widely method for preventing induced erosion, and thus degradation. generic purpose integrate onto composites surface order develop substrate advanced nanocomposite protection. final goal characterization nanostructures-reinforced means on-ground simulation facility, with future objective assess optimize process carbon-multiscale production. With such an aim, wide investigation on methane chemical vapor deposition (CVD) over catalyzed fiber-based substrates has been carried out. grown have analyzed terms morphology, well regarding main features resulting growth (yield, purity, homogeneity, coating uniformity, etc.) influence route operating parameters (catalyst typology, gas flowing rate, time/temperature, etc.). A high degree reproducibility relationship between deposit type/yield variables protocol) obtained. Finally, ground tests conducted evaluate effectiveness. test environment, respect performances reference (in total mass loss rate erosion), showed worsening disordered deposit, while intriguing improvement was achieved high-yield nano-filaments deposition.