Powder X-ray diffraction, as one of the methods for the study of drug polymorphism, has the advantages of no sample destruction and simple operation.

SBA-15 is a mesoporous silicon-based molecular sieve with a highly ordered hexagonal straight pore structure (p6mm), the pore size can vary from 5 to 50 nm, and the pore wall is thicker.

The composition of the diffraction pattern is mainly the position and intensity of the diffraction peak, and our analysis of the XRD pattern is based on the changes in the intensity and position to explain the changes in the micro and macro of the material.

SBA-15 is a kind of mesoporous molecular sieve, and its synthesis is another important chemical technology emerging in recent years.

Grazing incidence means that the X-ray is exposed to the film at a very small incidence Angle (< 5°), which greatly reduces the penetration depth in the film.At the same time, the low incidence Angle increases the irradiation area of the X-ray on the sample

Parallel beam XRD of X-ray optical crystals has been successfully applied in thin film analysis, sample texture evaluation, crystal phase and structure monitoring, etc.

Micro-ct technology has significant advantages in the characterization of ceramics, which can reveal the composite structure inside the material without damage, and restore the key technology in the production of ceramics.

As one of the important means of material structure characterization, XRD is widely used in materials, physics, chemistry, medicine and other fields.

X-ray diffractometer is mainly used for phase characterization, quantitative analysis, crystal structure analysis, material structure analysis, crystal orientation analysis of powder, block or thin film samples, etc.

XRD as a qualitative analysis means is not blind, with the help of analysis software just for convenience, fundamentally speaking, the most important thing is the XRD pattern itself.

As a new material characterization technology, PDF (Pair Distribution Function) is useful in the study of the local structure of both crystal and amorphous materials.

The structural stability of SBA-15 is closely related to its pore size and properties, and XRD is one of the effective methods to characterize its structure.