ISSN:
1013-9826
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:
The present work was performed to improve the mechanical strength of porous calciumphosphate blocks by adding a little amount of montmorillonite mineral to the calcium phosphatecomposition. 3.5 wt % of the montmorillonite mineral was added to the slurry of precipitatedhydroxyapatite and the porosity was produced by infiltration of a polymer template. After the firingprocess (1200 oC), the compressive strength, phase composition, morphology and dissolutionbehavior of the porous bodies were evaluated by appropriate techniques. It was found that theadditive improved the mechanical strength but decreased the dissolution rate of the porous calciumphosphate body. Also the final composition of the porous block (i.e. hydroxyapatite, HA, and β-tricalcium phosphate, β-TCP) was not influenced through the presence of the additive. It issuggested that the montmorillonite mineral can improve the sintering performance of the HA and β-TCP
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.111.pdf
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