Microstructural studies using X-ray diffraction
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Individual Orientations From Beartex

Generating individual orientations from Beartex textures

You will need to start from a Beartex texture file, either in YOD or YOS format. From Beratex, you need to create a file with an XOD extension. To do so, choose Convert -> CHBI (converts standard binary ODF). Choose the texture file to convert and select XOD as output format.

Open the XOD file that was created and, on the second line, write 4 spaces, followed by the following string: Mathies --> first letter of this line is read with format (4x,a). The top of your XOD file will look like this

Put a title here                                                               #
    Mathies --> first letter of this line is read with format (4x,a)

     2.461     2.461     3.955    90.000    90.000   120.000   11    1
   0  0 99  0.0 90.0  5.0  0.0360.0  5.0 1 1 1 2 3  100

Create an input file for Pole8, pole8.in. It will look like this

* # of texture files 'ntextfiles' to read below
* path & name of texture files (one per line)
* 'ipfig': 0 for PF plot, 1 for IPF plot, -1 for *.ODF file, -2 for *.EPF file
* single crystal unit cell (N/A if ipfig=-2)
* number of X-tall poles (PF) or sample axes (IPF) to read (N/A if ipfig=-2)
*Miller indices of poles (N/A if ipfig=-2)
   1   0   0       ! 1   (100) pole
   0   1   0       ! 1   (010) pole
   0   0   1       ! 1   (001) pole

where name-of-file.XOD is the XOD file created by Beartex, unitcell.sx holds information on the crystal unit cell, formatted for Pole8. We choose option -1 because we are reading an ODF.

This will create 3 texture files in your folder, p8tex.FUL, p8tex.RED and pp8tex.RAN.

  • p8tex.FUL: regular texture with a point every 5 degrees, about 46000 grains,
  • p8tex.RED: regular texture with a point every 10 degrees, about 6000 grains,
  • p8tex.RAN: texture with with random grain orientations and the number of grains you asked for.

At the same time, Pole8 creates a texture file file called gridint.out which you can plot with plotPFPole8.py to ensure that the texture you created roughly match what you wanted.

Page last modified on April 25, 2012, at 03:57 PM