Review Article Open Access

Structural Colour from Optical Phenomena Caused by Interference with a Thin or Multilayer Film, Photonic Nanocrystals, Light Scattering and Diffraction Grating Effect

Relly Victoria Petrescu1, Raffaella Aversa2 and Antonio Apicella2
  • 1 Bucharest Polytechnic University, Bucharest, (CE), Romania
  • 2 Second University of Naples, 81031 Aversa (CE), Italy
Journal of Aircraft and Spacecraft Technology
Volume 4 No. 1, 2020, 117-143

DOI: https://doi.org/10.3844/jastsp.2020.117.143

Submitted On: 27 March 2020 Published On: 13 August 2020

How to Cite: Petrescu, R. V., Aversa, R. & Apicella, A. (2020). Structural Colour from Optical Phenomena Caused by Interference with a Thin or Multilayer Film, Photonic Nanocrystals, Light Scattering and Diffraction Grating Effect. Journal of Aircraft and Spacecraft Technology, 4(1), 117-143. https://doi.org/10.3844/jastsp.2020.117.143

Abstract

The paper presents the Ion Plating Plasma Assisted technology that is applied in the area of surface functionalization with the purpose of preserving the structural colour and relics. The interferometric structural colours applied on titanium surfaces were used and tested together with nano-transparent and at the same time achromatic films on the very old ceramic artifact. In order to test the surface restoration, some titanium metal and ceramic supports were used: Firstly, an additive with a metallic beam constructed from titanium parts was used, but also an old tile from the 19th century, having the characteristic of a strong chromatic valence and of a mixed porous and glazed surface. In the experiment, a reactive device with ionic plate spray magnetron was used, capable of operating in Argon or Oxygen environments, for the purpose of depositing TiO2 and SiO2. First, several tests were performed using two plasma treatments in order to define the optimal methods for processing. By depositing TiO2 nano-film on irregular Ti surfaces it was possible to regenerate the light direction based on the surfaces that change its colour and the transparent achromatic quality coatings could be obtained with the help of SiO2 coating. Important in these procedures is the high flexibility of ion plating technology processing. It has been established after several attempts that the treatment of IPO SiO2 surfaces is better and therefore preferable in the case of restoration and preservation of ancient historical plates when the optimized procedure with Ion Beam Electron Microscopy, performed on the porous structure of the plates, was used for final testing, which confirmed the increased flexibility and efficiency of the innovative IPPA technology

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Keywords

  • Aircraft
  • Material Science
  • Structural Colours
  • Structure
  • Light
  • Ion Plating Plasma Assisted
  • Ion Beam Electron Microscopy