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Comparison of crystallinity between natural hydroxyapatite and synthetic cp-Ti /HA coatings
| Content Provider | Scientific Electronic Library Online (SciELO) |
|---|---|
| Author | Assis, Camila Molena de Vercik, Luci Cristina de Oliveira Santos, Márcio Luís dos Fook, Marcus Vinícius Lia Guastaldi, Antonio Carlos |
| Abstract | Commercial purity titanium (cp-Ti), and some of its alloys are important materials in the medical field because of their excellent biocompatibility and mechanical properties. Recently a simple chemical method to induce bioactivity in these inert metallic materials was reported. In this work, the biomimetic chemical process has been used to modify the surface of cp-Ti with the formation of a deposit layer of apatite (a calcium phosphate compound). The main purpose was to study the influence of heat treatment on changes in crystallinity in the deposited phases. X-ray diffraction analysis and scanning electron microscopy showed that the apatite coatings heat treated between 400 and 600 °C were less crystalline, similar to biological apatites. Upon heat treatment at temperatures above 700 °C, the apatite coatings appeared more crystalline, and were a mixture of hydroxyapatite, octacalcium phosphate and magnesium phosphate. |
| Related Links | http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-14392005000200022&lng=en&nrm=iso http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392005000200022&lng=en&nrm=iso |
| Starting Page | 207 |
| Ending Page | 211 |
| Page Count | 5 |
| File Format | |
| ISSN | 15161439 |
| DOI | 10.1590/S1516-14392005000200022 |
| Journal | Materials Research |
| Issue Number | 2 |
| Volume Number | 8 |
| Language | English |
| Publisher | ABM, ABC, ABPol |
| Publisher Date | 2005-06-01 |
| Publisher Institution | Unesp Instituto de Química Grupo de Biomateriais |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Biomaterials Titanium Biomimetic process Hydroxyapatite |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Condensed Matter Physics Materials Science Mechanical Engineering |
