Abstract:
Provided are a multi-component ceramic nano-composite powder that is suitable for forming a sintered ceramic composite and a method of preparing the same. The ceramic nano-composite powder is formed of secondary particles obtained by sintering multi-component ceramic particles with a nano-sized primary particle diameter in nano-scale. The multi-component ceramic particles may be formed of zirconia and alumina. A sintered zirconia-alumina composite formed by sintering the nano-composite powder has greater flexural strength than a sintered composite prepared by mechanically mixing zirconia powder and alumina powder and sintering the mixture.
Abstract:
Provided is a method of preparing a bioactive ceramic-coated composite. The method includes coating calcium phosphate-based ceramic on a ceramic substrate; an d thermally treating the coated calcium phosphate-based ceramic layer in a water vapor atmosphere. The bioactive ceramic-coated composite prepared using the method in which the decomposition of hydroxyapatite is suppressed can be used for artificial bioac tive tissues which are harmless to the human body and satisfy chemical and mechanica I requirements.
Abstract:
A sintered bioactive ceramic composite for implant having high strength and superior bioactivity and a method of preparing the same are provided. The composite includes a zirconia-alumina nano-composite-powder and an apatite-related compound and is useful for a load-bearing implant.