Development of a Bioactive Surface on a Co-Cr-Mo Alloy during Investment Casting or Heat Treatment

J. Carlos Ortiz-Cuellar; Dora A. Cortés-Hernández; José C. Escobedo-Bocardo; J.M. Almanza Robles

doi:10.4028/www.scientific.net/KEM.361-363.653

Paper Titles

Chemically Pre-Treated and Biomimetically Coated Titanium for Medical Applications: The True Structure Revealed by Transmission Electron Microscopy
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Influence of Calcium Zirconium Phosphate Containing Coatings on Mineralization of Bone
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Osseointegration of Calcium Phosphate Nanofilms on Titanium Alloy Implants
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Characterization and In Vivo Studies of Nanothickness Ca- and P-Based Coatings
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Development of a Bioactive Surface on a Co-Cr-Mo Alloy during Investment Casting or Heat Treatment
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Calcium Titanate Reaction Layers on TiAl6V4 Implants
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Newly Formed Bone around Implanted New Titanium Alloy: Ti-15%Zr-4%Nb-4%Ta
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Designed Solution to Coat Titanium Sheets with Octacalcium Phosphate
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In Vitro Behavior of Two Distinct Titanium Surfaces Obtained by Anodic Oxidation
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 361-363Development of a Bioactive Surface on a Co-Cr-Mo...

Development of a Bioactive Surface on a Co-Cr-Mo Alloy during Investment Casting or Heat Treatment

Abstract:

Two different techniques were used to promote a bioactive surface on a cobalt base alloy: i) the cobalt alloy melt was cast into wollastonite-coated cavities of an investment mold, or ii) wollasonite-encapsulated as-cast samples were heat treated at 1220°C for 1 h, this is the typical treatment performed to this alloy for improving its mechanical behavior. In vitro bioactivity was assessed by immersing samples in a simulated body fluid for 21 days. Potentially bioactive layers were obtained in both of the cases. A thicker apatite layer was formed on the samples obtained by investment casting. However, since the heat treatment needs to be performed, the heat treatment method is also a promising technique for promoting the bone-bonding ability of this Co alloy.

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Key Engineering Materials (Volumes 361-363)

Pages:

653-656

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.361-363.653

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Online since:

November 2007

Authors:

J. Carlos Ortiz-Cuellar, Dora A. Cortés-Hernández, José C. Escobedo-Bocardo, J.M. Almanza Robles

Keywords:

Apatite Layer, Bioactivity, Coating, Cobalt Base Alloys, Simulated Body Fluid (SBF)

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