|About this Abstract
||Materials Science & Technology 2011
||MS&T'11 Poster Session
||004 Calcination Study of Synthesized Nano Hydroxyapatite Using Cationic and Non Ionic Surfactants
||Tahira Siddique, Shahid Amin, Mohammad Mujahid, Syed Sakhawat Shah
|On-Site Speaker (Planned)
The present study enlightens the phase behavior, particle size and morphology of synthesized hydroxyapatite;HA ceramic powders by varying calcination temperatures. Calcination temperature range from 550ºC to 1000ºC has been considered for phase analysis. HA ceramic powders are synthesized using cationic surfactant; Cetyltrimethyl Ammonium Bromide; CTAB and two non ionic surfactants such as Sorbitane trioleate; Span 85 and Polyoxyethylene sorbitanmonolaurate; Tween20. 0.2 M concentration of each surfactant has been used separately to ensure the formation of required micellar templates. HA powders are prepared through chemical precipitation route along with 1.67 ratio of Ca and P precursors. The charge and molecular structures of surfactants are also scrutinized for the change in the phase, morphology and particle size. XRD shows high purity HA ceramic powders with minute impurity of DCPA and β-TCP while FTIR confirms the structural composition of HA at particular temperatures. Disparity in the crystallite size by means of temperature is found in the range of 14 nm to 30 nm for Span 85 and 17 nm to 24 nm for Tween 20 whereas for CTAB it is 35 nm to 65 nm. The morphology of the particles is characterized by SEM.