Dear Faouzi Hassaine ,

a) for the scan range you should google for ZnO and XLPE XRD pattern.

Relevant peaks for ZnO show up between 30 (100 peak) and 90 deg (203 peak) in 2theta*).

XLPE has significant information around 20°, but part of it is broad amorphous hump.

So your scan range should start at about 10° .

Maximum angles should be around 90° (2theta).

b) Small values of instrumental peak broadenings in XRD are around 0,1° in 2theta. So your step width has to be much smaller: e.g. 0,02°.

See for example Fig. 1 of:

Article Structural and magnetic properties and DFT analysis of ZnO:(...

and Fig. 4 of:

Article Influence of structural characteristics on cable ampacity an...

*) for Cu K-alpha radiation

Good luck and

best regards

G.M.

Dear Faouzi Hassaine ,

For X-ray diffraction (XRD) analysis, the recommended scanning range and step size can vary depending on factors such as the specific materials being analyzed, the desired resolution, and the instrumentation available. However, I can provide some general guidelines:

Scanning Range:

For ZnO: Relevant peaks typically show up between approximately 30° (e.g., 100 peak) and 90° (e.g., 203 peak) in 2θ (where θ is the scattering angle). Therefore, the scanning range for ZnO could start around 10° to 100° in 2θ.

For XLPE: Significant information may be observed around 20°, but part of it could be a broad amorphous hump. Therefore, the scanning range for XLPE could start around 10° to 30° in 2θ.

Step Size:

Small values of instrumental peak broadenings in XRD are typically around 0.1° in 2θ. Therefore, the step size should be much smaller to ensure adequate resolution. A commonly used step size could be around 0.02° to 0.05° in 2θ.

For the composite material (XLPE with zinc oxide), you would ideally want to cover the scanning ranges relevant to both components. Therefore, a combined scanning range could start from around 10° to 100° in 2θ, covering the ranges for both ZnO and XLPE. Similarly, the step size should be chosen to ensure sufficient resolution, typically around 0.02° to 0.05° in 2θ.

These recommendations provide a starting point, but it's essential to optimize the scanning parameters based on the specific characteristics of your samples, the expected peak positions, and the resolution requirements of your analysis. Additionally, the recommendations may vary depending on the XRD instrument and the specific experimental conditions. Adjustments may be necessary based on preliminary scans and the desired quality of data.

The scanning range is recommended from 5 degree to 90 degree if you don't know what's your phase. If you know my details, you can scan at your intereted range

Dear all,

Gerhard Martens, Ali Akram derardja, Mohan Jia

Thank you for your response. Regards.