COMPOSITION FOR ZIRCONIA GREEN SHEET, ZIRCONIA GREEN SHEET THEREFROM, ZIRCONIA SHEET PRODUCED FROM THE SAME AND PRODUCTION OF ZIRCONIA SHEET

摘要

PURPOSE:To provide the title large-sized, thin dense zirconia sheet virtually zero in the gas permeability in its thickness direction. CONSTITUTION:The objective composition comprising (A) zirconium oxide powder 0.05-0.5mum in crystallite size containing at least one kind of compound selected from cerium oxide, yttrium oxide, magnesium oxide and calcium oxide, (B) a binder and (C) a solvent. This composition is molded into a sheet to obtain the second objective zirconia green sheet, which is then calcined on a floor plate at 1200-1700 deg.C, thus giving the third objective zirconia sheet.