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Electrochemical corrosion and metal ion release from Co-Cr-Mo prosthesis with titanium plasma spray coating

Paper ID Volume ID Publish Year Pages File Format Full-Text
11949 769 2005 10 PDF Available
Title
Electrochemical corrosion and metal ion release from Co-Cr-Mo prosthesis with titanium plasma spray coating
Abstract

The corrosion behavior of CoCrMo implants with rough titanium coatings, applied by different suppliers by either sintering or vacuum plasma spraying, has been evaluated and compared with uncoated material. The open-circuit potential, corrosion current and polarization resistance were determined by electrochemical techniques. The Co, Cr and Ti ions released from the samples into the electrolyte during a potentiostatic extraction technique were analyzed using ICP-MS.The Ti coatings from the different suppliers showed a different porous morphology, and the implants exhibited a distinct corrosion activity, underlining the importance of the coating process parameters. Among the titanium coated samples, the one with the sintered overcoat turned out to be the most resistant. Yet, on an absolute scale, they all showed a corrosion resistance inferior to that of uncoated CoCrMo or wrought titanium.

Keywords
CoCrMo implant; Titanium plasma spray coating; Electrochemical test; Cations extraction; Corrosion
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Electrochemical corrosion and metal ion release from Co-Cr-Mo prosthesis with titanium plasma spray coating
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 26, Issue 23, August 2005, Pages 4747–4756
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us