Influence of MgO doping in hot-pressing tricalcium phosphate

Abstract

Tricalcium phosphate ceramics (TCP) has been widely investigated. The main advantage of this bioceramic is its bioresorbable behavior. The factor that still limits the application of these materials as temporary implants is the low strength resistance of the TCP sintered material. The tricalcium phosphate presents an allotropic transformation β to α phase around 1250 °C that degrades its resistance, limiting the sintering temperature of the compacted samples. The objective of this work is to study the physical and mechanical properties of hot-pressed tricalcium phosphate with MgO additions. The results obtained have shown that the hot-pressed process increases significantly the mechanical properties of TCP materials. The addition of MgO has not improved the sintering process and the properties of hot-pressed tricalcium phosphate. © 2011 Ceramic Society of Japan.