The specific research content of powder engineering includes three aspects. First, the basic performance and characterization of powder, including the geometric characteristics of powder particles, the scientific definition of particle size, particle size distribution and particle shape; Principle and method of measuring powder particle size and particle size distribution; Powder stacking characteristics and tribological characteristics, as well as the principle and method of measuring the physical properties of related powders. It also includes the surface and interface chemistry of powder. The second is the basic process, principle, technology and equipment of powder engineering unit operation, including grinding, separation, classification, powder storage and transportation, etc. Third, the basic physical and chemical principles of powder preparation and related technologies and equipment. In addition, the harm and prevention of dust in powder engineering are also discussed.

Powder engineering is a new subject of powder and its preparation, processing, treatment and application. From the connotation analysis of powder science and engineering. Powdery studies some basic problems in various powder systems, such as powder characteristics, particle size, interaction between powder particles, interaction between powder and medium, basic physical and chemical principles of powder preparation, etc. Powder engineering is the operation of each unit, the optimal combination of processes and the control of processes in the engineering practice of powder preparation and application. Powder engineering involves chemical engineering, materials, metallurgy, medicine, bioengineering, agriculture, food, machinery, electronics, aviation, aerospace and other industrial fields, and is related to basic disciplines such as chemistry, physics and mechanics, showing interdisciplinary and cross-technical intersection and generalization of basic theories.