Metallic Biomaterials TiN-Coated: Corrosion Analysis and Biocompatibility

Metallic Biomaterials TiN-Coated: Corrosion Analysis and Biocompatibility

: Corrosion processes due to contact with the physiological environment should be avoided or minimized in orthopedic implants. Four metallic substrates frequently used as biomaterials: pure Ti, Ti‐6Al‐4V alloy, ASTM F138 stainless steel, and Co‐Cr‐Mo alloy, were coated with TiN using the physical va...

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Veröffentlicht in:Artificial organs 2003-05, Vol.27 (5), p.461-464
Hauptverfasser: Paschoal, André Luís, Vanâncio, Everaldo Carlos, Canale, Lauralice de Campos Franceschini, Silva, Orivaldo Lopes da, Huerta-Vilca, Domingos, Motheo, Artur de Jesus
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Biocompatibility
Biomaterials
Coated Materials, Biocompatible
Corrosion
Materials Testing
Mice
Physical vapor deposition
Prostheses and Implants
Stainless Steel
Titanium - chemistry
Titanium - toxicity
Titanium nitride
Vitallium
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Zusammenfassung:: Corrosion processes due to contact with the physiological environment should be avoided or minimized in orthopedic implants. Four metallic substrates frequently used as biomaterials: pure Ti, Ti‐6Al‐4V alloy, ASTM F138 stainless steel, and Co‐Cr‐Mo alloy, were coated with TiN using the physical vapor deposition (PVD) technique. These coatings have been screened by polarization curves in physiological solutions. TiN prepared by PVD is efficient as coating for stainless steel. On titanium and alloy there are no benefits concerning the corrosion resistance compared to the bare Ti‐materials. TiN coatings have been screened according to ISO 10993 standard tests for biocompatibility and exhibited no cytotoxicity, dermal irritation, or acute systemic toxicity response.
ISSN:0160-564X
1525-1594
DOI:10.1046/j.1525-1594.2003.07241.x