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Heat treatment is a key step in the application process of 3D printing. So far, regardless of which 3D printing process is used, it involves several methods to varying degrees, such as powder cleaning, annealing, post curing, unsupported, polished, sandblasted, and colored. Heat treatment is also an important step in the application process of 3D printed parts, and can take various forms depending on the expected results, materials used, and preferred technology.

There are different methods to measure the particle size of powders, depending on the size range of the particles and the desired accuracy of the measurement. Here are some common techniques:

Graphene is currently one of the most popular materials for research. It has many excellent characteristics, such as high conductivity, high thermal conductivity, good mechanical properties, etc. Recently, quantum dots made of graphene have also attracted widespread attention. Graphene quantum dots are regarded as important materials for the next generation of optical, electrical, and energy storage devices, and have attracted attention due to their excellent performance advantages in various applications. This article will introduce the properties, synthesis, and applications of graphene quantum dots.

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.

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The synthesis of carbon quantum dots can be mainly divided into two categories: top-down method and bottom-up method. Through the pre-treatment, preparation, and subsequent processing, carbon quantum dots can be controlled in size, passivated on the surface, doped with heteroatoms, and nanocomposites to meet the requirements.