Strengthening of hydroxyapatite prepared from cattle bone ash by inducing compressive surface

Abstract

To investigate the strengthening of hydroxyapatite (HAp) prepared from cattle bone ash by means of induced compressive surface stresses. In the study, there are two kinds of HAps: one that is easily sintered and another that is poorly sintered, are used together in different ratios. The preperation of sintered HAp specimens coated with a mixture of two different HAps having a lower thermal expansion coefficient is characterised. It was found that the compressive strength of the coated HAp is decreased to 19-27 %, compared to that of the uncoated HAp due to the slight difference in thermal expansion coefficient.