Tantalum particles are a powder state of metallic tantalum, with the chemical symbol Ta. They belong to the steel gray metal and have extremely high corrosion resistance. Tantalum has a melting point of 2996 ℃, a boiling point of 5425 ℃, an atomic number of 73, and is located in the VB group of the periodic table. Tantalum does not react with hydrochloric acid, concentrated nitric acid, and aqua regia under hot and cold conditions, demonstrating its excellent chemical stability. Tantalum particles have a wide range of applications, including but not limited to being used as materials, additives, or experimental materials for electron beam evaporation, as well as high-purity tantalum coating particles.

The purity of tantalum particles is crucial for their application. High purity tantalum particles are widely used in the vacuum coating process because their high purity can reduce the impact of impurities on the coating quality, ensuring the uniformity and stability of the material surface. In addition, tantalum particles also have good mechanical properties, which can increase the strength and hardness of the coating layer and improve the wear resistance of the material. In vacuum coating technology, high-purity tantalum particles are not only used as raw materials for coating materials, but also as carriers for catalysts, thereby improving the corrosion resistance and adhesion of the material surface.

Vacuum coating technology is a commonly used surface treatment technique that has been widely applied in fields such as electronics, optics, and materials. By vacuum evaporation or sputtering of metals, alloys, or compounds and depositing them on the coated object, a solid thin film is formed to improve or obtain specific surface properties. The high purity and excellent mechanical properties of tantalum particles make them an ideal choice for vacuum coating technology.