TITLE:
Fabrication and characterization of the Ti-Ca-P composites by vacuum sintering
AUTHORS:
Dibakar Mondal, Swapan Kumar Sarkar, Dong-Won Lee, Young-Seon Lee, Byong-Taek Lee
KEYWORDS:
Ti, Calcium Phosphate, Biocompatibility, Bio-ceramic
JOURNAL NAME:
Journal of Biomedical Science and Engineering,
Vol.4 No.9,
September
30,
2011
ABSTRACT: Using Ti and biphasic calcium phosphate (BCP) pow-ders, Ti-Ca-P composites which contained 0 - 30 vol.% BCP powders initially, were fabricated by vac-uum sintering at two different sintering temperatures, 1300°C and 1400°C. Detailed microstructural char-acteristics of the resulting composites were investi-gated. Mechanical properties like compressive strength, Vickers hardness were evaluated and they showed decreasing trend with the increasing initial BCP content. The x-ray diffraction (XRD) profiles revealed that extensive chemical reaction occurred and the initial BCP was degraded and formed CaO, TiO2, TiP, CaTiO3. However, the cell viability by MTT assay and cell proliferation behavior through one cell morphology analysis showed excellent in-creasing trend in biocompatibility which makes this materials suitable for hard tissue aid material.And the composite containing 30 vol.% BCP content with Ti sintered at 1400°C showed excellent biocompati-bility with the Vickers Hardness value 108.8 HV and the compressive strength value 303.7 MPa.