| Preparation of ex-situ Mixed Sintered Biphasic Calcium
Phosphate Ceramics from Its Co-Precipitated Precursors
and Their Characterization |
Ritwik Sarkar,a Akanksha Agrawala and Rupita Ghosha, b, *
Pages : 101-107
DOI : 10.1080/0371750X.2019.1619484 |
| Abstract |
| Biphasic calcium phosphate (BCP) ceramics was synthetically prepared by
ex-situ method using hydroxyapatite (HAp) and beta tricalcium phosphate
(-TCP) powders. Both HAp and -TCP were prepared by wet chemical
co-precipitation and calcination method and were then mixed at two different
weight ratios of 60:40 and 70:30. The mixed BCPs were then pressed and sintered
at 1200o and 1250oC. Sintered pure HAp and -TCP were also prepared for
comparison purpose. Sintered products were then characterized for various
properties. Higher density and strength values were found for the composition
with higher HAp content and also the bioactivity on immersion in SBF (simulated
body fluid) solution was found to be higher for HAp containing composition.
[Keywords: Hydroxyapatite, Beta tricalcium phosphate, Biphasic calcium
phosphate, Sintering, Bioactivity] |
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