Binding Mechanism Of Thermal Spraying Coating

Binding mechanism of thermal spraying coating ① mechanical binding: molten particles hit the surface of the substrate and spread into a flat liquid thin layer, Mosaic on the undulating surface, and form the mechanical binding. (2) Metallurgical combination: coating and matrix surface diffusion and welding, known as metallurgical combination. (3) Physical combination: when the high-speed molten particles hit the surface of the matrix, if the distance between the two sides of the interface is within the range of atomic lattice constant, the particles will be combined together by van der Waals force.

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