Mechanical Properties of Hot-Pressed β-Tricalcium Phosphate Doped with Univalent and Divalent Metal Ions

Abstract

Mechanical properties of hot-pressed β-TCP doped with univalent or divalent metal ions were evaluated and the effect of metal ions on the mechanical properties of hot-pressed β-TCP was investigated. Hot-pressed β-TCP achieved a relative density of more than 96.7%. Bending strength of undoped β-TCP was about 110 MPa. β-TCP doped with Mg²⁺ ion up to 10 mol% showed a bending strength of more than 140 MPa, especially β-TCP doped with 8 mol% of Mg²⁺ ion showed a bending strength of 160 MPa. On the other hand, bending strength of β-TCP doped with K⁺ ion gradually decreased from 135 to 85 MPa with increasing the amount of K⁺ ion.