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Tungsten carbide-based thermal spraying alloy material is one of the most widely used hard surface materials, and is also one of the strategic basic materials to support our modern industry and modern national defense. It is mainly WC-based composite powder or WC-based alloy powder formed by adding Co, Cr, Ni, Mo and other metals into tungsten carbide.

Tungsten disulfide (WS₂）has the same structure as molybdenum disulfide. It is a typical sandwich layer structure. Due to its relatively weak van der Waals force between layers, it can also be stripped into single or few layers of nanosheets. It is considered to be another equivalent. An important two-dimensional nanosheet material with unique physical, chemical and electrical properties.

Tungsten carbide is one of the most important materials in transition metal carbides. It has excellent properties such as high melting point, hardness, thermal stability and mechanical stability. It is widely used in making cemented carbide materials and has important applications in cermet, mechanical processing, metallurgical minerals, aerospace and other fields.