| 摘要 |
PROBLEM TO BE SOLVED: To allow titanium oxidized coating to sufficiently show photocatalystic function, to reduce thermal spraying energy at the time of coating formation and to improve the adhesion of a base material with the titanium oxidized coating by depositing a mixed body of a substrate produced by depositing a substrate material having the shape of metallic particles on a base material to produce a mixed layer and depositing TiO2 particles on this layer to produce a TiO2 layer. SOLUTION: For example, a base material 1 of stainless steel is plasma- sprayed in a state that NiCr particles are melted by 100%, and NiCr in a molten state is solidified on the base material 1 to produce a substrate 2 integrated with the base material 1. The substrate 2 is similarly thermal-sprayed with a mixed granule composed of 70 wt.% NiCr and 30% TiO2 granule, and solidification is executed to produce a lower side mixed layer 3 integrated with the substrate 2. The mixed layer 3 is similarly thermal-sprayed with a mixed body composed of 40% NiCr and 6O% TiO2 granule to produce a similar upper side mixed layer 4. The mixed layer 4 is similarly thermal-sprayed with TiO2 particles to produce a TiO2 layer 5. |
