1. Surface Treatment of Metals and Materials
Silicon nitride powder is used for surface treatment of metals and other materials, such as molds, cutting tools, turbine blades, turbine rotors, cylinder inner wall coatings, and other alloy components. The coating improves hardness, wear resistance, and high-temperature performance of the treated surface.
2. Composite Materials
Silicon nitride powder is used in composite materials such as metal, ceramic, and graphite matrix composites, as well as rubber, plastics, coatings, adhesives, and other polymer matrix composites. It forms a fine dispersed phase in composite materials, providing good chemical corrosion resistance, especially high-temperature resistance, and a self-lubricating effect, which greatly improves the comprehensive performance of composite materials.
3. Wear-Resistant Self-Lubricating Coatings
Wear-resistant nanoparticle-based self-lubricating films are used for surface protection of mobile phones, advanced automobiles, wear-resistant coatings, electrophoretic paint additives, and high-wear-performance applications. Silicon nitride has the characteristics of high hardness and low sliding friction, and can be applied to the wear-resistant composite coating of metal surface ceramics. High-purity silicon nitride can also be used in quartz crucible separating agents.
Frequently Asked Questions
What is silicon nitride powder used for? Surface treatment of molds, tools, and turbine components, and composite material reinforcement.
Why is silicon nitride used in coatings? It provides high hardness, low sliding friction, and self-lubricating performance.
What is silicon nitride used for in composites? It forms a fine dispersed phase with corrosion resistance and high-temperature resistance.
Which parts can be surface-treated with silicon nitride powder? Molds, cutting tools, turbine blades, turbine rotors, cylinder inner wall coatings, and other alloy components; the coating improves hardness, wear resistance, and high-temperature performance.
Where is high-purity silicon nitride powder used besides coatings? High-purity silicon nitride can be used in quartz crucible separating agents, and nanoparticle-based self-lubricating films are applied to mobile phones and advanced automobiles.
