The preparation of SEM nano powder samples usually requires the following steps:
These nano powders can improve the biocompatibility, mechanical properties, bioactivity and degradability of bioceramics by adjusting the particle size and morphology, making them more suitable for biomedical applications. Of course, the specific selection of the types and applications of nano powders should take into account the characteristics of materials and specific application scenarios.
The crystal structure of nano iron oxide is hexagonal, and the lattice parameters change with the decrease of particle size. When the particle size is large (usually larger than tens of nanometers), iron oxide exhibits a typical α- The Fe2O3 structure, also known as hematite structure, is red in color. This is because typical α- The Fe2O3 structure has a high reflectivity for visible light, absorbing shorter wavelengths (blue-green) in visible light, leaving only longer red wavelengths observed.
Chemical Total Element Analysis (ICP-MS) is a widely used instrument technology in the field of chemical analysis. It is developed based on inductively coupled plasma mass spectrometry (ICP) technology.
Fisher's particle size is a method used to measure the particle size of granular materials, usually determined by measuring the settling velocity of particles in air or liquid. The principle of Fisher's particle size measurement is based on Stokes' law, which means that the force exerted on small particles in the medium is proportional to their diameter. The average diameter or particle size distribution of granular materials can be obtained using the Fisher particle size test.
Nanoparticle transmission electron microscopy (TEM) is an important microscopy technique widely used to observe and characterize the structure and morphology of nanoscale particles and materials.
