Complex Doped Zirconia for Ceramic Implants: Production and Properties

Abstract

The physicochemical properties of the ZrО₂-based composite in the ZrO₂–Y₂O₃–СеО₂–СоО system, which is intended for the development of bioinert implants, are examined. To produce the starting nanocrystalline powder, hydrothermal synthesis in alkaline medium and mechanochemical treatment were successively used. The samples were consolidated by cold uniaxial pressing, sintering in air, and pressure and temperature treatment in argon. This resulted in the fine-grained composite consisting of (mol.%): 96.3 ZrO₂–2,8 Y₂O₃–0,6 СеО₂–0,3 СоО. The composite has properties that comply with international standards and is not prone to ageing.