Abstract
Hydroxy-Apatite (HAp), commonly used as a biomaterial, is one of the primary components of bones and teeth and exhibits a high level of biocompatibility. However, it has poor mechanical properties due to its brittle nature. Recently, several attempts have been made to develop functionally graded materials (FGM) by combining Ti or Ti alloys, known for their superior mechanical properties, with HAp. The present study aimed to develop a material with a radially graded structure consisting of Ti in the center and HAp on the surface, using spark plasma sintering for artificial bone preparation. In the experiments, both the temperature distribution in dice upon sintering, and the residual stress distribution at the interface of each layer after sintering, were analized by FEM in order to obtain a method for examining optimal production conditions.
