Organic-inorganic nanocomposite scratch resistant coatings for polycarbonate(PC)were successfully fabricated by evaporation induced self-assembly method.

After being added in the wood coatings,the wax particles were homodispersed in the coating films,which could improve the tackiness resistance and the scratch resistance of coating films.

The morphology and structure of the nanocomposite coatings were characterized by transmission electron microscopy(TEM) and small angle X-ray scattering(SAXS) method,while the scratch resistance by the gloss loss of the coatings film after washing.

Organic-inorganic hybrid composites were prepared by the sol-gel method for the wear-resistant coating on epoxide resin and TEOS,KH-560,KH-570 were used as starting materials.

25NiCr-75Cr_3C_2 wear-resistant coatings for heavy-duty gas turbine were prepared by HVAF spraying technology,and its bond strength,micro hardness and wear-resistant property were tested,and the bonding mechanism of coatings and the factors affected wear-resistant property of coatings were analyzed.

This paper gave an overview of the study situation of plasma-sprayed wear-resistant coating of traditional research at home and abroad,introduced the situation of plasma-sprayed nano-structured coatings and nano-structural application of special performance,but also pointed out the nano-structured coating process problems.