Transactions of the INDIAN CERAMIC SOCIETY Vol. 73 2014
Study on the Development of Machinable
Hydroxyapatite - Yttrium Phosphate
Composite for Biomedical Applications
Rupita Ghosh, Sumit Pal and Ritwik Sarkar
pages : 121-125
DOI :10.1080/0371750X.2014.922426
Abstract
Hydroxyapatite (HAp) and yttrium phosphate (YP) powders were synthesized through wet chemical route and
calcination process. Calcined powders were used to prepare HAp-YP composites by solid mixing and sintering
route, up to a YP content of 50 wt%. Sintered composites were characterized for phase analysis and densification
study. The sintered composites were studied for machinability by drilling method using a conventional cemented
carbide drill bit. Hydroxyapatite-yttrium phosphate composite pellets were studied for drilling by conventional
drilling technique using carbide drill bits. In vitro cytotoxicity study of the sintered composites, using MTT assay
by culturing in MG-63 cells, showed cell viability index 0.95.
