Document Detail


Hardness and elastic modulus of TiO2 anodic films measured by instrumented indentation.
MedLine Citation:
PMID:  17671975     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this work was to investigate the mechanical properties of the titanium anodic films (TiO2) produced by anodic oxidation under galvanostatic conditions, using a 1.4M phosphoric acid electrolyte, with different current densities (J) on commercially pure titanium (cp-Ti). The morphology of the oxide films were observed by scanning electron microscopy (SEM), whereas the composition of the film was determined by Raman spectroscopy. Porosity, average roughness (Ra) and thickness of the TiO2 films increased with the applied J. Hardness and elastic modulus were measured by instrumented indentation technique, and the influence of the substrate was corrected using analytical models. The anodic films presented higher hardness and lower elastic modulus values compared with the cp-Ti.
Authors:
Paulo Soares; Alexandre Mikowski; Carlos M Lepienski; Emanuel Santos; Glória A Soares; Vitoldo Swinka Filho; Neide K Kuromoto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biomedical materials research. Part B, Applied biomaterials     Volume:  84     ISSN:  1552-4981     ISO Abbreviation:  J. Biomed. Mater. Res. Part B Appl. Biomater.     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-01-14     Completed Date:  2008-03-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101234238     Medline TA:  J Biomed Mater Res B Appl Biomater     Country:  United States    
Other Details:
Languages:  eng     Pagination:  524-30     Citation Subset:  IM    
Copyright Information:
(c) 2007 Wiley Periodicals, Inc.
Affiliation:
Health Technology Post-Graduate Program, Pontifícia Universidade Católica do Paraná, 80215-901 Curitiba (PR), Brazil. pcsoaresjr@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Coated Materials, Biocompatible*
Elasticity
Electrodes
Hardness
Hardness Tests
Materials Testing*
Oxidation-Reduction
Surface Properties
Titanium*
Chemical
Reg. No./Substance:
0/Coated Materials, Biocompatible; 13463-67-7/titanium dioxide; 7440-32-6/Titanium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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