| Abstract Scope |
Due to very high temperature of plasma in plasma spray coating techniques, some of the properties of HA powder gets deteriorated after spraying to generate coating. It is found from in-vitro studies conducted by many of the researches since it has been used as a coating material for biological applications that as sprayed coating lack some of the requirements which include Crystallization, porosity, surface roughness, refined crystallographic morphology, wide opened cracks. These properties need to be defined with respect to the usage of the implant (location), service life, dissolution/ absorption properties, load bearing capacity and many more. In this study, a comparison of various post coting treatments which includes, post coating heat treatment, stream treatment and cryogenic treatment is done to check the effect of these treatments on the desired properties of HA coating. |