The Bragg glass phase is a near-perfect crystalline phase with glassy characteristics that is expected to occur in vortex lattices and charge density wave systems in the presence of disorder.

X-ray diffraction technique is widely used in drug analysis. X-ray diffraction technique is an analytical method used to study the structure of a substance. This technique has many applications in drug analysis.

The stronger the light, the brighter? But this is not always the case. When the intensity of the X-ray beam begins to exceed a certain critical value, the diffraction image unexpectedly weakens.

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.

X-ray diffraction spectroscopy mainly analyzes the crystal state and microstructure of materials, and there are two X-ray diffraction measurement methods for crystal analysis.

In the past 10 years, the Institute of Physics of the Chinese Academy of Sciences has used powder diffraction method to determine the crystal structure of many inorganic and organic compounds.

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.

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.

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