| abstract |
A particulate composite powder wherein each composite powder particle comprises a substrate particle surrounded by fine particles of metal oxide bound to the surface of the substrate particle by a binding agent containing at least one of metallic soap and wax, the amount of fine particles of metal oxide being between 10 and 30 wt % and the amount of said binding agent being between 0.5 and 5 wt % based on the total weight of substrate particles, fine particles of metal oxide and binding agent. |