Archive | 2019
Characterization of Calcium Powders from Merauke Mangrove Crab Shells
Abstract
In this study, we report the successful fabrication of calcium powders by utilizing mangrove crab shells originating from Merauke as a natural source of bio-ceramic. Calcium powders from Merauke mangrove crab shells were synthesized at different temperatures varying from 800 to 1000 °C for 5 h in ambient atmosphere. It is observed that the calcinations temperature plays a significant role in the formation of hydroxyapatite crystallite phase. From the XRD and FTI characterization, it is confirmed that hydroxyapatite crystal was well synthesized at temperature of 1000 °C with no more carbon phase remains. SEM image also shows better crystalline shape having crystal size of ~ 800 nm. However, due to long period of air exposed, samples may be hydrated to Ca(OH)2.