How to use Jade for XRD phase analysis

XRD test as one of the commonly used tests, but there are still many students who do not know much about it, this post is given by Science Compass research service platform to introduce the problems of XRD software.

Jade is one of the commonly used software to analyze XRD data. The main aspects of XRD physical phase analysis using Jade, including: “file import - minus backing - (smoothing) - retrieval”.

1. File Import

Jade and Highscore import files in a similar way.

Method 1: Directly drag the file to be analyzed to the icon of MDI-Jade, then you can open it.

Method 2: Click “File -- Read -- Select the file to be analyzed -- Open” in order.

2. Deduction of back bottom

Method 1: Automatic deduction of back bottom

Directly left mouse button double-click the toolbar icon can be.

Method 2: Manually deducting the back bottom

(1) Left mouse button click on the icon, the spectrogram will show yellow baseline and red control point. Click the icon in the center to control the control point (red point), and move the red point reasonably to adjust the baseline.

(2) baseline adjustment to the appropriate position, click the icon again, that is, to complete the back bottom deduction. The effect is shown in the figure below:

3. Smoothing

When the noise of the spectrum is serious, the XRD spectrum needs to be reasonably smoothed.Highscore can also be curve smoothing, but the smoothing effect is not obvious, it is recommended to use Jade for smoothing, the operation is simple, the effect is remarkable.

Operation method:

(1) Click the icon in the toolbar to realize smoothing. Smoothing effect is shown below. If you smooth once after the regret, you can click on this icon to try Oh.

(2) Click “S ave -- Primary Pattern as *.txt” to export the smoothed data for graphing.

4. Search

The shortcut for retrieval is this icon in the toolbar. Similar to Highscore, Jade can perform unrestricted searches, however, we generally do not recommend using it unless you know nothing about the sample. Here we will mainly demonstrate how to perform a restricted rapid identification of the physical phase.

Method of operation:

(1) Right mouse click to bring up a dialog box.

(2) Check off the appropriate subset of crystal databases and reasonable constraints based on the prompts in the figure below, e.g., the general experimenter knows the elements contained in his or her material.

(3) As shown in the figure, after checking Use Chemistry Filter, the dialog box for selecting chemical elements appears.

(4) Select the appropriate elements according to the instructions in the above figure, and then click OK.

(5) Click OK again as shown below.

That is, the window shown in the figure below appears, in which FOM means match degree, the smaller the value of FOM, the higher the match degree.

(6) Check the data rows with high matches, and the peak correspondences can be displayed in the black box above. Observe that the peaks find their corresponding phases. Finally, click Save.

(7) If you want to know, the card data for each crystal type. Right click on the blue font, you can view. Click “Lines” to view the cell parameters of the standard phase. Click the Save or Copy button on the right side of the dialog box to save the data for graphing.

Summary

The above is the main process of XRD physical phase analysis using Jade. After practicing and becoming skillful, you will find it very simple.