Abstract: β-Ca ₃(PO ₄) ₂/CaSiO ₃ (β-TCP/CS) composite bioceramics with weight ratio of 50:50 were fabricated by using the β-TCP/CS nano-composite powders. The β-TCP/CS composite bioceramics with >96% relative density and 120nm grain size were obtained after sintering at 1150℃ for 5h. The bending strength of the samples reached about 126MPa, which was similar to those of the human cortical bone. After soaking in simulated body fluid for 1 day, the samples were completely covered wity hydroxyapatite layers. The degradability of the
samples reached 10.1% within 28 days in~ vitro. The results suggest excellent
in~ vitro bioactivity and degradability of the β-TCP/CS composite
bioceramics. Therefore, these β-TCP/CS composite bioceramics may be
potential candidates as good mechanical strength, bioactive and degradable
biomaterials for hard tissue repair applications.

Key words: β-trualcium phosphate/calcium silicate, composite bioceramics, mechanical strength, bioactivity, degradabilityend