Fabrication and characterization of dicalcium phosphate dihydrate layer-coated β-TRICALCIUM phosphate pellets
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Date
2019-05
Authors
Nur Raihan Binti Ridzwan
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Abstract
The aim of this study is to investigate the effect of soaking time in fabricating DCPD
layer-coated β-TCP pellets. Sintered β-TCP pellets were exposed to an acidic calcium
phosphate solution for 2, 4, 6, and 8 hours in order to obtain DCPD coated layer on β
TCP pellets through dissolution-precipitation reaction. Several characterization
methods such as XRD, SEM, FTIR, AFM, porosity analysis and compression test were
carried out on specimen. XRD and SEM analysis showed that the amount of DCPD
crystal precipitated on the pellets were increased when increasing the soaking time.
Increasing DCPD formation will reduced the porosity and increased the mechanical
strength of specimen. Meanwhile, XRD and SEM analysis showed that HAp formation
were increased after increasing the soaking time of 5 mass% DCPD layer-coated β
TCP pellets in HBSS solution. Therefore, based on this study shows that the amount
of DCPD coated on β-TCP pellet could be regulated by increasing the soaking time
that induced HAp formation at physiological body condition.