Abstract: A tool for machining fiber-reinforced materials, said tool having a tool body having a particular cutting edge that has at least a main function surface and has a diamond coating applied at least to said main function surface. In order to provide a tool and a method which are especially suitable for machining fiber-reinforced materials, the surface of the diamond coating has a reduced peak height Spk of less than 0.25 ?m.

Abstract: A tool for machining fiber-reinforced materials, said tool having a tool body having a particular cutting edge that has at least a main function surface and has a diamond coating applied at least to said main function surface. In order to provide a tool and a method which are especially suitable for machining fiber-reinforced materials, the surface of the diamond coating has a reduced peak height Spk of less than 0.25 ?m.

Abstract: The invention relates to a coated system which has a chemically and mechanically very stable surface coating of high aesthetic attraction which has a specular and optionally iridescent color and/or a body color on a metal, ceramic or quartz glass substrate provided with an enamel or glaze coating, the surface coating being obtainableby single or repeated application of aqueous metal oxide sols,by subsequently drying and optionally igniting the metal oxide sol coating at each application step,the metal oxide sols having a mean particle size of between 5 and 200 nm,ignition being carried out at least once after completion of the final application step and at temperatures higher than 700.degree. C. and below the softening point of the substrate,the metal oxide coating on the glaze or enamel coating having, after ignition, a refractive index at least 0.5 higher than the refractive index of the enamel or glaze coating, andthe total thickness of the ignited metal oxide coatings being less than 500 nm.

Abstract: Colored pigments having an improved stability in decorative colors, engobes, glazes, and enamels, based on platelet-type substrates coated with metal oxides, in which the coating is free from alkaline earth metal oxides and contains a colored metal oxide or metal hydroxide and at least 10% by weight of aluminum oxide, are outstandingly suitable for pigmenting glazes and enamels.

Abstract: The application relates to a preferably golden color luster pigment based on lamellar substrates, in particular mica, which have been coated with metal oxides, the metal oxide layer containing both titanium and iron and the pigment containing mainly a pseudobrookite layer formed by simultaneous precipitation of the metal oxides. This golden color luster pigment is suitable for cosmetic articles because of its physiological acceptability and is particularly suitable for silicate melts because of its resistance to heat and chemicals.