In this book, the authors present current research in the study of the characteristics, technology and performance applications of zirconium. Topics discussed include the preparation of zirconium oxide thin film by plasma coating method and its hydrophobic nature; cellulose fibres coated zirconium oxide; zirconium and potassium cobalt molybdenum carbide as an active water-gas shift catalyst; the electrochemical characterisation of two different zirconium-based permselective systems; zirconia and allumina bioceramic biocompatibility; and the preparation and properties of zirconia nanocrystalline ceramics.