Abstract
In this study, we report the formation and characterisation of a calciumaluminate cement for potential application as a hard tissue replacement. Phasepure monocalcium aluminate powder was synthesised using the Pechini technique,using a relatively low temperature (1000°C) and sintering time (3h). Characterisation of the hardened material showed a strong relationshipbetween the liquid/powder ratio to which the cement was mixed and the mechanicalperformance of the hardened materials with little influence on cement microstructure.Interestingly, following immersion in phosphate buffered saline, there wasextensive precipitation on the surface of the cement sample. X-ray diffractionshowed that the precipitate was hydroxyapatite, which on evaluation usingscanning electron microscopy was shown to be of porous structure.
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