Structure and adhesive properties of ceramic and composite coatings on Al2O3 base

Paper deals with application of new composite powder materials, which are prepared by heating sprayed with plasma with water stabilized are. Investigated coating powder material is on ceramics (Al2O3) - metal (Ni) base. Ceramic sand composite coatings were deposited on substrate of steel 11 373 (ISO 630 - 80). Adhesive - cohesive of properties was used norm STN EN 582 - Determination of tensile adhesive strength. The adhesive test showed, that composite coatings with nickel, reach better adhesion.