DIAMANTBESCHICHTETER KÖRPER UND VERFAHREN ZU DESSEN HERSTELLUNG

• Main Authors: NORDIN, MARIA, REINECK, INGRID
• Format: Patent
• Language: German
• Published: 15.08.2002
• Edition: 7
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

Body comprising cemented carbide or cermets coated with at least one diamond layer has in-between the body and the diamond layer spotwise occurring particles containing at least one element chosen from tungsten (W), tantalum (Ta), titanium (Ti), molybdenum (Mo), chromium (Cr), vanadium (V), niobium (Nb), magnesium (Mg), calcium (Ca), sodium (Na), potassium (K), or preferably any of bismuth (B), silicon (Si), sulphur (S), aluminium (Al) or phosphorus (P). The particles are dispersed at a density such that the average distance between two particles is 10 (preferably 5) microns or less. Also claimed is production of above body. Body is cemented carbide with depleted Co surface, where surface roughness is 1 ~mmRa20~mm, preferably 10~mm and porosity of 10~mm, preferably5~mm.