PROCESS FOR PRODUCING A ZIRCONIA REFRACTORY BODY AND A PRODUCT PRODUCED BY THE PROCESS

摘要

TITLE OF THE INVENTION: PROCESS FOR PRODUCING A ZIRCONIA REFRACTORY BODY AND A PRODUCT PRODUCED BY THE PROCESS A high mechanical strength of zirconia refractory body can be provided by a process for producing the refractory body made of at least partially stabilized zirconia and having a predetermined shape comprising: a step of forming the predetermined shape out of a mixed powder of fine particles of zirconia belonging to a monoclinic system with fine particles of stabilizer composed of at least one substance selected from a group consisting essentially of MgO, CaO and Y2O3; and a step of firing the mixed powder having the predetermined shape thus formed in such a condition as to cause sintering of the zirconia particles and stabilization of zirconia simultaneously.