Projects per year
Abstract
This thesis investigates possible ways of creating aluminium with a milky white, metallic
appearance for decorative purposes. Since white cannot be obtained through traditional
absorption based dyeing of aluminium, optical mechanisms based on scattering by nanostructures
are studied in order to solve the problem.
The problem is investigated by first reviewing existing work within colouration and
visual appearance. This includes a study on how colours are perceived by humans and an
investigation of the characteristics with which a surface appearance is properly described.
Subsequently, nanostructures and surface profiles are investigated using optimisation
and topology optimisation in order to understand the limitations and design freedom of
colour engineering. This is then followed by a study of the effect of disorder on a nanoscale
level in order to tailor surface reflections for a smooth, pleasing appearance. Afterwards,
optical models for scattering of non-deterministic geometries suitable for anodised aluminium
are considered.
The outcome of the investigations are several different proposals for obtaining a white
appearance for aluminium. These are described in the thesis alongside a brief note on the
experimental work performed to try out the proposals. Results from the most successful
experiment in which a satisfactory white appearance is obtained is then presented.
Original language | English |
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Publisher | DTU Mechanical Engineering |
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Number of pages | 215 |
ISBN (Electronic) | 978-87-7574-395-7 |
Publication status | Published - 2014 |
Series | DCAMM Special Report |
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Number | S173 |
ISSN | 0903-1685 |
Fingerprint
Dive into the research topics of 'Structural colours and applications to anodised aluminium surfaces'. Together they form a unique fingerprint.Projects
- 1 Finished
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Modelling and design of Anodised Aluminium Surfaces
Johansen, V. E. (PhD Student), Sigmund, O. (Main Supervisor), Aage, N. (Supervisor), Breinbjerg, O. (Supervisor), Mortensen, N. A. (Examiner), Shin, J. H. (Examiner) & Berggren, M. (Examiner)
01/12/2011 → 19/03/2015
Project: PhD