Fabrication and characterization of the Ti-Ca-P composites by vacuum sintering

Dibakar Mondal, Swapan Kumar Sarkar, Dong-Won Lee, Young-Seon Lee, Byong-Taek Lee

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DOI: 10.4236/jbise.2011.49074                

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.

Keywords

Ti, Calcium Phosphate, Biocompatibility, Bio-ceramic

Conflicts of Interest

The authors declare no conflicts of interest.

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