ATTENTION - the aluMATTER site is currently experiencing some technical problems
 
blank spacer
blank spacer
  Home | Site Contents | Search | aluSelect | Partners | About aluMATTER | Help  
Representing Texture

Leonardo da Vinci, Helsinki Award 2006, Design and execution: Gerold Fink, Austria. Click to open PDF document about this award

Leonardo Da Vinci Helsinki Award 2006

Leonardo da Vinci, Helsinki Award 2006, Design and execution: Gerold Fink, Austria. Click to open PDF document about this award

Bronze medal for an outstanding project promoting and supporting the LifeLong Learning EU policy. Award Berlin 2007

 
Page 1 / 10 Click to go to the next page in this section  
How do we Represent Textures?

The Pole Figure is based on the stereographic Projection
Pole figure

Sample ODF
Orientation Distribution Function - ODF

In order to understand how crystallographic textures are formed and how they effect properties in aluminium alloys, it is essential to have a method of representing, or characterising them.

Many material characteristics or properties such as density, Young modulus or electrical resistivity can be described by a single numeric value.

Crystallographic texture however is necessarily more complex as it describes the orientations in 3D space of thousands or millions of individual grains. We therefore represent it graphically, and have two important tools to do this.

  • the pole figure, based on the stereographic projection.
  • the Orientation Distribution Function (ODF), based on the three Euler angles of rotation required to co-orientate a unit cell with a reference coordinate system.

Over the next few pages, each will be described with the aid of interactive figures and diagrams.

External Links

EAA, MATTER and their partners are not responsible for the content of external sites.

Authors/Contributors