◆Surface morphology observation:
The scanning electron microscope can clearly show the surface morphology of powder particles, including the particle shape, size, surface roughness, porosity, etc. The particle size and shape of the powder affect the fluidity and looseness of the powder, the processing and molding of the powder, the shrinkage during sintering, and the final properties of the product. The performance of some powder metallurgy products is almost directly related to particle size.
◆Particle diameter analysis:
By observing and comparing the powder through the scanning electron microscope, to check whether the particle size is uniform, whether there are too many false particles, and the coarseness of the particles. The particle size of the powder particles can be accurately analyzed, including particle diameter distribution, average particle diameter and other parameters,It is of great significance for optimizing the preparation process and performance control of powder materials.
◆When the scanning electron microscope is used in combination with the energy dispersive spectrometer (EDS), it is possible to analyze the chemical composition while observing the morphology of the sample. EDS determines the chemical elemental composition and distribution of the sample by analyzing the X-rays emitted from the sample. It is very helpful to understand the relationship between the chemical composition and properties of powder materials.