ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Both solid-state reaction and glass-ceramic methods are used to obtain bioactivematerials (CaSiO3) with different concentrations of MgO (6, 8, and 10 wt %) on the basis of thestoichiometric composition of CaO·SiO2. The in vitro bioactivity assessment is performed byimmersing samples in SBF (simulated body fluids) for different periods of time. The analysis of thematerials before immersion indicates the presence of different phases (akermanite, wollastonite anddiopside) in the materials obtained by the solid state reaction method. It is possible to obtainwollastonite with incorporation of magnesium in its structure ((Ca, Mg)·SiO6) by the glass-ceramicmethod. The results obtained after immersing the samples in SBF indicate that a Ca, P-rich layer isformed on all the materials tested, even in those containing a high quantity of MgO. However, thelayer formed in the MgO-free CaSiO3 ceramic is thicker than that formed in the MgO-containingmaterials
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.560.35.pdf
Permalink