ZIRCONIA ARTICLE HAVING TETRAGONAL CORE AND MONOCLINIC CASE, ITS PREPARATION AND SINTERING METHOD

摘要

PURPOSE: To prepare a zirconia alloy article having a tetragonal. core and a monoclinic case without requiring stress induced phase transition. ;CONSTITUTION: A particulate alloy of a primary oxide and a secondary oxide is densified and the resultant compressed powder is sintered in contact with substantially pure zirconium oxide. The primary oxide is zirconium oxide and the secondary oxide is selected from the group consisting of MgO, CaO, Y₂O₃, Sc₂O₃, rare earth oxides and combinations thereof.;COPYRIGHT: (C)1994,JPO