Interactive Resource icon  Aluminium Surface Treatments for Maximum Reflectivity

Use this resource: Use this resource icon
Link to this page:
View at:        
Resource type: Interactive Resource
Description: By using Physical Vapour Deposition (PVD), multi-layer structures - based on the principle of high-low refractive index - are created on the aluminium surface. These can increase the total reflectance to a maximum of more than 95%, thereby creating very bright surfaces to be used for lighting applications. This interactive animation shows how three layers applied on top of anodized aluminium to increase the reflectance: a layer of high purity Al (99.99%) and two transparent dielectric layers.
Keywords: refractive index • reflectivity • optical thickness • physical vapour deposition • dielectric
Categories: Materials > Metals & alloys > Aluminium & alloys
Processes > Surface treatments
Properties > Electrical, magnetic & optical > Optical
Created by: MATTER, The University of Liverpool
Iris De Graeve, Vrije Universiteit Brussel (VUB)
Herman Terryn, Vrije Universiteit Brussel (VUB)
Contributions: Marc Ryckeboer, Sapa
Christophe Sigli, Alcan Centre de Recherches de Voreppe
Hugh Shercliff, University of Cambridge
Published by: European Aluminium Association, Brussels
License: This resource is released under the Creative Commons Attribution Non-Commercial No Derivatives license (2.0 UK: England & Wales).
Creative Commons Attribution Non-Commercial No Derivatives logo
You are free:
  • to share – to copy, distribute and transmit the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • noncommercial – You may not use this work for commercial purposes.
  • No Derivative Works – You may not alter, transform, or build upon this work.
View the full legal code here.
Date created: 27 July 2004
Date added: 21 December 2009
Resource ID: 2605