Porous Structure Characterization in Titanium Coating for Surgical Implants
Open Access
- 1 September 2002
- journal article
- Published by FapUNIFESP (SciELO) in Materials Research
- Vol. 5 (3), 269-273
- https://doi.org/10.1590/s1516-14392002000300009
Abstract
Powder metallurgy techniques have been used to produce controlled porous structures, such as the porous coatings applied for dental and orthopedic surgical implants, which allow bony tissue ingrowth within the implant surface improving fixation. This work presents the processing and characterization of titanium porous coatings of different porosity levels, processed through powder metallurgy techniques. Pure titanium sponge powders were used for coating and Ti-6Al7Nb powder metallurgy rods were used as substrates. Characterization was made through quantitative metallographic image analysis using optical light microscope for coating porosity data and SEM analysis for evaluation of the coating/substrate interface integrity. The results allowed optimization of the processing parameters in order to obtain porous coatings that meet the requirements for use as implantsKeywords
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