From the industrial point of view the research activities of the Laboratory of Neutron Diffraction (Faculty of Nuclear Sciences and Physical Engineering CTU Prague) are concentrated to the quantitative texture analysis based on the ODF (orientation distribution function). We have developed the experimental and data treatment procedures for this type research. The texture experiments were carried out on the neutron diffractometer KSN-2 using the TG-1 texture goniometr. This diffraction device offers good intensity with wavelengths in the range 0.095 to 0.141 nm and the best resolution value of Δd/d = 0.007 was reached in the region d ~ 1.0 ÷ 0.1 nm (d is interplanar spacing).

Now, the KSN-2 was upgraded by means of the (311) bent monochromator unit and by the PSD system consists the bank of the three linear position tubes with 25.7 mm in the diameter and 670 mm in the active length and the resolution was improved to the Δd/d = 0.002 in the d-region from 1.4 to 0.075 nm, the neutron flux on sample is about 2.5 times higher, the sample volume is 4.5 times smaller and “in-situ” experiments are available.

The quantitative texture analysis of neutronographic pole figures or inversion pole figures recorded is treated by means of these codes: popLA, TODF-N, MAUD and Rietveld analysis method (texture analysis version: GSAS package, FULLPROF).

Quantitative texture analysis by means neutron diffraction data were used on the investigation of the many samples of the technically interesting materials. For example, we have determined the texture parameters on the oriented Si steel sheets, the zirconium alloys (tubes for nuclear reactors), polymer materials (PVC foils) and rock materials (CaCO3 test samples).

On the basis of our results we have proved that the KSN-2 diffractometer together with the above mentioned software codes is very important and powerful tool for understanding the texture development with respect to the mechanical and the thermal processes.

This research has been supported by the MSM6840770021 project.

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