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.
Silver nanowire dispersion and silver nanowire ink are two common solutions containing nano silver wires, which have some differences in properties and applications.
Colloidal gold refers to a colloidal system formed by suspending nanoscale gold particles in an appropriate solution. The size of gold particles typically ranges from 1 to 100 nanometers.
There is a certain relationship between the conductivity and thermal conductivity of materials. Conductivity is the ability of a material to conduct current, while thermal conductivity is the ability of a material to conduct heat. Both of these properties are related to the electron and heat conduction inside the material.
The passivation layer of metal nanoparticles refers to a thin film or protective layer coated on the surface of metal nanoparticles. It usually consists of a compound, such as an oxide, sulfide, or organic compound. This passivation layer can alter the surface properties of metal nanoparticles and provide protection and stability.
The powders suitable for use as lubricants can vary depending on specific applications and requirements. The following are some common powder types suitable for use as lubricants:
