CERAMIC COMPOSITION REINFORCED FOR DENTAL APPLICATION AND CAPABLE OF BEING SUBJECTED TO PRESS-MOLDING

摘要

PROBLEM TO BE SOLVED: To provide a glass ceramic composition capable of being subjected to press-molding at ≤1,200°C, having excellent fracture strength and fracture toughness and used for dental application.;SOLUTION: The glass ceramic composition I (a specific composition containing ZrO₂ and SiO₂ as main components), the glass ceramic composition II (a specific composition containing ZrO₂/Al₂O₃ and SiO₂ as main components) or the glass ceramic composition III ( a specific composition containing Al₂O₃ and SiO₂ as main components) contains 17-70% one or more kinds selected from ZrO₂ and Al₂O₃ and 17-59% SiO₂ as the main components and additionally contains Y₂O₃, K₂O, Na₂O, Li₂O, CaO, B₂O₃, F, CeO₂ and TiO₂.;COPYRIGHT: (C)2005,JPO&NCIPI