| abstract |
PROBLEM TO BE SOLVED: To improve the fluidity of a coating powder by making it difficult to agglomerate, improve the dispersibility of the coating powder, and make the coating on the substrate surface uniform, for example, impart photocatalytic performance to the substrate surface In this case, the photocatalytic performance is improved. In a manufacturing method of a coating powder for manufacturing a coating powder F made of semiconductor ceramics and coated on a base material, primary particles of semiconductor ceramic raw powder S are uniformly dispersed in a liquid by a wet bead mill method. The resulting slurry is granulated into the coating powder F by spray drying. The raw material powder S was mainly composed of titanium dioxide, and tungsten trioxide was added thereto, and the amount of tungsten trioxide added was 1 to 30% by weight of the total raw material powder. [Selection] Figure 1 |