Substrate with multilayer coatings

A metal substrate is provided with scratch-, wear- and corrosion-resistant coatings which comprise multiple thin layers of titanium nitride, or titanium carbonitride, or both titanium nitride and titanium carbonitride, and may also contain a layer of aluminum oxide. A preferred coating is provided b...

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Bibliographische Detailangaben
1. Verfasser:	LANGHORN, JASON B
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS 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 DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DIFFUSION TREATMENT OF METALLIC MATERIAL FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MEDICAL OR VETERINARY SCIENCE METALLURGY ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	A metal substrate is provided with scratch-, wear- and corrosion-resistant coatings which comprise multiple thin layers of titanium nitride, or titanium carbonitride, or both titanium nitride and titanium carbonitride, and may also contain a layer of aluminum oxide. A preferred coating is provided by alternating layers of titanium nitride and titanium carbonitride. The coatings can inhibit the growth of microcracks that can otherwise result from surface cracks or scratches on coated substrates, and thereby provide improved wear characteristics, resist scratching, and prevent the penetration of corrosive fluids to the substrate material. The coatings are suitable for use in orthopaedic implants.