REINFORCED ZIRCONIA-BASE SINTERED BODY, PROCESS FOR PRODUCING THE SAME, AND PLATE-LIKE ZIRCONIA-BASE ELECTROLYTE FUNCTION ELEMENT

摘要

A partially or wholly stabilized zirconia-base reinforced sintered body or a zirconia-base solid electrolyte function element includes a plate-like sintered substrate (1) of a partially or wholly stabilized zirconia-base sintered mass provided with on each side thereof an alumina-base protective layer (2) having a given thickness. The thickness ratio of each alumina-base protective layer (2) to said plate-like sintered substrate (1) having a thickness of 0.1 to 5mm is <1>/100 to <2><5>/100.